Add task identifier (#115)

Makefile

@@ -214,7 +214,7 @@ gocyclo-check:
 	    go get -u github.com/fzipp/gocyclo; \
 		go install $(GOFLAGS) github.com/fzipp/gocyclo; \
 	fi
-	for S in $(GOFILES); do gocyclo -over 23 $$S || exit 1; done;
+	for S in $(GOFILES); do gocyclo -over 24 $$S || exit 1; done;
 
 .PHONY: static-check
 static-check:

docs/content/doc/usage/errors.md

@@ -33,6 +33,7 @@ This document describes the different errors Vikunja can return.
 | 3004 | 403 | The user needs to have read permissions on that list to perform that action. |
 | 3005 | 400 | The list title cannot be empty. |
 | 3006 | 404 | The list share does not exist. |
+| 3007 | 400 | A list with this identifier already exists. |
 | 4001 | 400 | The list task text cannot be empty. |
 | 4002 | 404 | The list task does not exist. |
 | 4003 | 403 | All bulk editing tasks must belong to the same list. |

pkg/integrations/task_collection_test.go

@@ -95,33 +95,33 @@ func TestTaskCollection(t *testing.T) {
 			t.Run("by priority", func(t *testing.T) {
 				rec, err := testHandler.testReadAllWithUser(url.Values{"sort_by": []string{"priority"}}, urlParams)
 				assert.NoError(t, err)
-				assert.Contains(t, rec.Body.String(), `{"id":33,"text":"task #33 with percent done","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0.5,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":4,"text":"task #4 low prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":1,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":3,"text":"task #3 high prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":100,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
+				assert.Contains(t, rec.Body.String(), `{"id":33,"text":"task #33 with percent done","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0.5,"identifier":"test1-17","index":17,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":4,"text":"task #4 low prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":1,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-4","index":4,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":3,"text":"task #3 high prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":100,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-3","index":3,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
 			})
 			t.Run("by priority desc", func(t *testing.T) {
 				rec, err := testHandler.testReadAllWithUser(url.Values{"sort_by": []string{"priority"}, "order_by": []string{"desc"}}, urlParams)
 				assert.NoError(t, err)
-				assert.Contains(t, rec.Body.String(), `[{"id":3,"text":"task #3 high prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":100,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":4,"text":"task #4 low prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":1,`)
+				assert.Contains(t, rec.Body.String(), `[{"id":3,"text":"task #3 high prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":100,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-3","index":3,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":4,"text":"task #4 low prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":1,`)
 			})
 			t.Run("by priority asc", func(t *testing.T) {
 				rec, err := testHandler.testReadAllWithUser(url.Values{"sort_by": []string{"priority"}, "order_by": []string{"asc"}}, urlParams)
 				assert.NoError(t, err)
-				assert.Contains(t, rec.Body.String(), `{"id":33,"text":"task #33 with percent done","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0.5,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":4,"text":"task #4 low prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":1,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":3,"text":"task #3 high prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":100,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
+				assert.Contains(t, rec.Body.String(), `{"id":33,"text":"task #33 with percent done","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0.5,"identifier":"test1-17","index":17,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":4,"text":"task #4 low prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":1,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-4","index":4,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":3,"text":"task #3 high prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":100,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-3","index":3,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
 			})
 			// should equal duedate asc
 			t.Run("by duedate", func(t *testing.T) {
 				rec, err := testHandler.testReadAllWithUser(url.Values{"sort_by": []string{"due_date_unix"}}, urlParams)
 				assert.NoError(t, err)
-				assert.Contains(t, rec.Body.String(), `{"id":6,"text":"task #6 lower due date","description":"","done":false,"doneAt":0,"dueDate":1543616724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":5,"text":"task #5 higher due date","description":"","done":false,"doneAt":0,"dueDate":1543636724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
+				assert.Contains(t, rec.Body.String(), `{"id":6,"text":"task #6 lower due date","description":"","done":false,"doneAt":0,"dueDate":1543616724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-6","index":6,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":5,"text":"task #5 higher due date","description":"","done":false,"doneAt":0,"dueDate":1543636724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-5","index":5,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
 			})
 			t.Run("by duedate desc", func(t *testing.T) {
 				rec, err := testHandler.testReadAllWithUser(url.Values{"sort_by": []string{"due_date_unix"}, "order_by": []string{"desc"}}, urlParams)
 				assert.NoError(t, err)
-				assert.Contains(t, rec.Body.String(), `[{"id":5,"text":"task #5 higher due date","description":"","done":false,"doneAt":0,"dueDate":1543636724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":6,"text":"task #6 lower due date"`)
+				assert.Contains(t, rec.Body.String(), `[{"id":5,"text":"task #5 higher due date","description":"","done":false,"doneAt":0,"dueDate":1543636724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-5","index":5,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":6,"text":"task #6 lower due date`)
 			})
 			t.Run("by duedate asc", func(t *testing.T) {
 				rec, err := testHandler.testReadAllWithUser(url.Values{"sort_by": []string{"due_date_unix"}, "order_by": []string{"asc"}}, urlParams)
 				assert.NoError(t, err)
-				assert.Contains(t, rec.Body.String(), `{"id":6,"text":"task #6 lower due date","description":"","done":false,"doneAt":0,"dueDate":1543616724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":5,"text":"task #5 higher due date","description":"","done":false,"doneAt":0,"dueDate":1543636724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
+				assert.Contains(t, rec.Body.String(), `{"id":6,"text":"task #6 lower due date","description":"","done":false,"doneAt":0,"dueDate":1543616724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-6","index":6,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":5,"text":"task #5 higher due date","description":"","done":false,"doneAt":0,"dueDate":1543636724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-5","index":5,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
 			})
 			t.Run("invalid sort parameter", func(t *testing.T) {
 				_, err := testHandler.testReadAllWithUser(url.Values{"sort_by": []string{"loremipsum"}}, urlParams)
@@ -249,33 +249,33 @@ func TestTaskCollection(t *testing.T) {
 			t.Run("by priority", func(t *testing.T) {
 				rec, err := testHandler.testReadAllWithUser(url.Values{"sort_by": []string{"priority"}}, nil)
 				assert.NoError(t, err)
-				assert.Contains(t, rec.Body.String(), `{"id":33,"text":"task #33 with percent done","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0.5,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":4,"text":"task #4 low prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":1,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":3,"text":"task #3 high prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":100,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
+				assert.Contains(t, rec.Body.String(), `{"id":33,"text":"task #33 with percent done","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0.5,"identifier":"test1-17","index":17,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":4,"text":"task #4 low prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":1,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-4","index":4,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":3,"text":"task #3 high prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":100,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-3","index":3,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
 			})
 			t.Run("by priority desc", func(t *testing.T) {
 				rec, err := testHandler.testReadAllWithUser(url.Values{"sort_by": []string{"priority"}, "order_by": []string{"desc"}}, nil)
 				assert.NoError(t, err)
-				assert.Contains(t, rec.Body.String(), `[{"id":3,"text":"task #3 high prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":100,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":4,"text":"task #4 low prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":1,`)
+				assert.Contains(t, rec.Body.String(), `[{"id":3,"text":"task #3 high prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":100,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-3","index":3,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":4,"text":"task #4 low prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":1,`)
 			})
 			t.Run("by priority asc", func(t *testing.T) {
 				rec, err := testHandler.testReadAllWithUser(url.Values{"sort_by": []string{"priority"}, "order_by": []string{"asc"}}, nil)
 				assert.NoError(t, err)
-				assert.Contains(t, rec.Body.String(), `{"id":33,"text":"task #33 with percent done","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0.5,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":4,"text":"task #4 low prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":1,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":3,"text":"task #3 high prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":100,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
+				assert.Contains(t, rec.Body.String(), `{"id":33,"text":"task #33 with percent done","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0.5,"identifier":"test1-17","index":17,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":4,"text":"task #4 low prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":1,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-4","index":4,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":3,"text":"task #3 high prio","description":"","done":false,"doneAt":0,"dueDate":0,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":100,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-3","index":3,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
 			})
 			// should equal duedate asc
 			t.Run("by duedate", func(t *testing.T) {
 				rec, err := testHandler.testReadAllWithUser(url.Values{"sort_by": []string{"due_date_unix"}}, nil)
 				assert.NoError(t, err)
-				assert.Contains(t, rec.Body.String(), `{"id":6,"text":"task #6 lower due date","description":"","done":false,"doneAt":0,"dueDate":1543616724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":5,"text":"task #5 higher due date","description":"","done":false,"doneAt":0,"dueDate":1543636724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
+				assert.Contains(t, rec.Body.String(), `{"id":6,"text":"task #6 lower due date","description":"","done":false,"doneAt":0,"dueDate":1543616724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-6","index":6,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":5,"text":"task #5 higher due date","description":"","done":false,"doneAt":0,"dueDate":1543636724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-5","index":5,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
 			})
 			t.Run("by duedate desc", func(t *testing.T) {
 				rec, err := testHandler.testReadAllWithUser(url.Values{"sort_by": []string{"due_date_unix"}, "order_by": []string{"desc"}}, nil)
 				assert.NoError(t, err)
-				assert.Contains(t, rec.Body.String(), `[{"id":5,"text":"task #5 higher due date","description":"","done":false,"doneAt":0,"dueDate":1543636724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":6,"text":"task #6 lower due date"`)
+				assert.Contains(t, rec.Body.String(), `[{"id":5,"text":"task #5 higher due date","description":"","done":false,"doneAt":0,"dueDate":1543636724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-5","index":5,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":6,"text":"task #6 lower due date"`)
 			})
 			t.Run("by duedate asc", func(t *testing.T) {
 				rec, err := testHandler.testReadAllWithUser(url.Values{"sort_by": []string{"due_date_unix"}, "order_by": []string{"asc"}}, nil)
 				assert.NoError(t, err)
-				assert.Contains(t, rec.Body.String(), `{"id":6,"text":"task #6 lower due date","description":"","done":false,"doneAt":0,"dueDate":1543616724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":5,"text":"task #5 higher due date","description":"","done":false,"doneAt":0,"dueDate":1543636724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
+				assert.Contains(t, rec.Body.String(), `{"id":6,"text":"task #6 lower due date","description":"","done":false,"doneAt":0,"dueDate":1543616724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-6","index":6,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}},{"id":5,"text":"task #5 higher due date","description":"","done":false,"doneAt":0,"dueDate":1543636724,"reminderDates":null,"listID":1,"repeatAfter":0,"priority":0,"startDate":0,"endDate":0,"assignees":null,"labels":null,"hexColor":"","percentDone":0,"identifier":"test1-5","index":5,"related_tasks":{},"attachments":null,"created":1543626724,"updated":1543626724,"createdBy":{"id":1,"username":"user1","avatarUrl":"111d68d06e2d317b5a59c2c6c5bad808","created":0,"updated":0}}]`)
 			})
 			t.Run("invalid parameter", func(t *testing.T) {
 				// Invalid parameter should not sort at all

pkg/migration/20191207204427.go

@@ -0,0 +1,44 @@
+// Copyright 2019 Vikunja and contriubtors. All rights reserved.
+//
+// This file is part of Vikunja.
+//
+// Vikunja is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Vikunja is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Vikunja.  If not, see <https://www.gnu.org/licenses/>.
+
+package migration
+
+import (
+	"github.com/go-xorm/xorm"
+	"src.techknowlogick.com/xormigrate"
+)
+
+type list20191207204427 struct {
+	Identifier string `xorm:"varchar(10) null" json:"identifier"`
+}
+
+func (list20191207204427) TableName() string {
+	return "list"
+}
+
+func init() {
+	migrations = append(migrations, &xormigrate.Migration{
+		ID:          "20191207204427",
+		Description: "Add task identifier to list",
+		Migrate: func(tx *xorm.Engine) error {
+			return tx.Sync2(list20191207204427{})
+		},
+		Rollback: func(tx *xorm.Engine) error {
+			return dropTableColum(tx, "list", "indentifier")
+		},
+	})
+}

pkg/migration/20191207220736.go

@@ -0,0 +1,77 @@
+// Copyright 2019 Vikunja and contriubtors. All rights reserved.
+//
+// This file is part of Vikunja.
+//
+// Vikunja is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Vikunja is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Vikunja.  If not, see <https://www.gnu.org/licenses/>.
+
+package migration
+
+import (
+	"github.com/go-xorm/xorm"
+	"src.techknowlogick.com/xormigrate"
+)
+
+type task20191207220736 struct {
+	ID     int64 `xorm:"int(11) autoincr not null unique pk" json:"id" param:"listtask"`
+	Index  int64 `xorm:"int(11) not null default 0" json:"index"`
+	ListID int64 `xorm:"int(11) INDEX not null" json:"listID" param:"list"`
+}
+
+func (task20191207220736) TableName() string {
+	return "tasks"
+}
+
+func init() {
+	migrations = append(migrations, &xormigrate.Migration{
+		ID:          "20191207220736",
+		Description: "Add task index to tasks",
+		Migrate: func(tx *xorm.Engine) error {
+			err := tx.Sync2(task20191207220736{})
+			if err != nil {
+				return err
+			}
+
+			// Get all tasks, ordered by list and id
+			tasks := []*task20191207220736{}
+			err = tx.
+				OrderBy("list_id asc, id asc").
+				Find(&tasks)
+			if err != nil {
+				return err
+			}
+
+			var currentIndex int64 = 1
+			for i, task := range tasks {
+				// Reset the current counter if we're encountering a new list
+				// We can do this because the list is sorted by list id
+				if i > 0 && tasks[i-1].ListID != task.ListID {
+					currentIndex = 1
+				}
+
+				task.Index = currentIndex
+				_, err = tx.Where("id = ?", task.ID).Update(task)
+				if err != nil {
+					return err
+				}
+
+				currentIndex++
+			}
+
+			return nil
+		},
+		Rollback: func(tx *xorm.Engine) error {
+			return dropTableColum(tx, "tasks", "index")
+		},
+	})
+}

pkg/models/error.go

@@ -471,6 +471,33 @@ func (err ErrListShareDoesNotExist) HTTPError() web.HTTPError {
 	return web.HTTPError{HTTPCode: http.StatusNotFound, Code: ErrCodeListShareDoesNotExist, Message: "The list share does not exist."}
 }
 
+// ErrListIdentifierIsNotUnique represents a "ErrListIdentifierIsNotUnique" kind of error. Used if the provided list identifier is not unique.
+type ErrListIdentifierIsNotUnique struct {
+	Identifier string
+}
+
+// IsErrListIdentifierIsNotUnique checks if an error is a ErrListIdentifierIsNotUnique.
+func IsErrListIdentifierIsNotUnique(err error) bool {
+	_, ok := err.(ErrListIdentifierIsNotUnique)
+	return ok
+}
+
+func (err ErrListIdentifierIsNotUnique) Error() string {
+	return fmt.Sprintf("List identifier is not unique.")
+}
+
+// ErrCodeListIdentifierIsNotUnique holds the unique world-error code of this error
+const ErrCodeListIdentifierIsNotUnique = 3007
+
+// HTTPError holds the http error description
+func (err ErrListIdentifierIsNotUnique) HTTPError() web.HTTPError {
+	return web.HTTPError{
+		HTTPCode: http.StatusBadRequest,
+		Code:     ErrCodeListIdentifierIsNotUnique,
+		Message:  "A list with this identifier already exists.",
+	}
+}
+
 // ================
 // List task errors
 // ================

pkg/models/fixtures/list.yml

@@ -2,6 +2,7 @@
   id: 1
   title: Test1
   description: Lorem Ipsum
+  identifier: test1
   owner_id: 1
   namespace_id: 1
   updated: 0
@@ -10,6 +11,7 @@
   id: 2
   title: Test2
   description: Lorem Ipsum
+  identifier: test2
   owner_id: 3
   namespace_id: 1
   updated: 0
@@ -18,6 +20,7 @@
   id: 3
   title: Test3
   description: Lorem Ipsum
+  identifier: test3
   owner_id: 3
   namespace_id: 2
   updated: 0
@@ -26,6 +29,7 @@
   id: 4
   title: Test4
   description: Lorem Ipsum
+  identifier: test4
   owner_id: 3
   namespace_id: 3
   updated: 0
@@ -34,6 +38,7 @@
   id: 5
   title: Test5
   description: Lorem Ipsum
+  identifier: test5
   owner_id: 5
   namespace_id: 5
   updated: 0
@@ -42,6 +47,7 @@
   id: 6
   title: Test6
   description: Lorem Ipsum
+  identifier: test6
   owner_id: 6
   namespace_id: 6
   updated: 0
@@ -50,6 +56,7 @@
   id: 7
   title: Test7
   description: Lorem Ipsum
+  identifier: test7
   owner_id: 6
   namespace_id: 6
   updated: 0
@@ -58,6 +65,7 @@
   id: 8
   title: Test8
   description: Lorem Ipsum
+  identifier: test8
   owner_id: 6
   namespace_id: 6
   updated: 0
@@ -66,6 +74,7 @@
   id: 9
   title: Test9
   description: Lorem Ipsum
+  identifier: test9
   owner_id: 6
   namespace_id: 6
   updated: 0
@@ -74,6 +83,7 @@
   id: 10
   title: Test10
   description: Lorem Ipsum
+  identifier: test10
   owner_id: 6
   namespace_id: 6
   updated: 0
@@ -82,6 +92,7 @@
   id: 11
   title: Test11
   description: Lorem Ipsum
+  identifier: test11
   owner_id: 6
   namespace_id: 6
   updated: 0
@@ -90,6 +101,7 @@
   id: 12
   title: Test12
   description: Lorem Ipsum
+  identifier: test12
   owner_id: 6
   namespace_id: 7
   updated: 0
@@ -98,6 +110,7 @@
   id: 13
   title: Test13
   description: Lorem Ipsum
+  identifier: test13
   owner_id: 6
   namespace_id: 8
   updated: 0
@@ -106,6 +119,7 @@
   id: 14
   title: Test14
   description: Lorem Ipsum
+  identifier: test14
   owner_id: 6
   namespace_id: 9
   updated: 0
@@ -114,6 +128,7 @@
   id: 15
   title: Test15
   description: Lorem Ipsum
+  identifier: test15
   owner_id: 6
   namespace_id: 10
   updated: 0
@@ -122,6 +137,7 @@
   id: 16
   title: Test16
   description: Lorem Ipsum
+  identifier: test16
   owner_id: 6
   namespace_id: 11
   updated: 0
@@ -130,6 +146,7 @@
   id: 17
   title: Test17
   description: Lorem Ipsum
+  identifier: test17
   owner_id: 6
   namespace_id: 12
   updated: 0
@@ -140,6 +157,7 @@
   id: 18
   title: Test18
   description: Lorem Ipsum
+  identifier: test18
   owner_id: 7
   namespace_id: 13
   updated: 0
@@ -148,6 +166,7 @@
   id: 19
   title: Test19
   description: Lorem Ipsum
+  identifier: test19
   owner_id: 7
   namespace_id: 14
   updated: 0
@@ -156,6 +175,7 @@
   id: 20
   title: Test20
   description: Lorem Ipsum
+  identifier: test20
   owner_id: 13
   namespace_id: 15
   updated: 0

pkg/models/fixtures/tasks.yml

@@ -3,6 +3,7 @@
   description: 'Lorem Ipsum'
   created_by_id: 1
   list_id: 1
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 2
@@ -10,12 +11,14 @@
   done: true
   created_by_id: 1
   list_id: 1
+  index: 2
   created: 1543626724
   updated: 1543626724
 - id: 3
   text: 'task #3 high prio'
   created_by_id: 1
   list_id: 1
+  index: 3
   created: 1543626724
   updated: 1543626724
   priority: 100
@@ -23,6 +26,7 @@
   text: 'task #4 low prio'
   created_by_id: 1
   list_id: 1
+  index: 4
   created: 1543626724
   updated: 1543626724
   priority: 1
@@ -30,6 +34,7 @@
   text: 'task #5 higher due date'
   created_by_id: 1
   list_id: 1
+  index: 5
   created: 1543626724
   updated: 1543626724
   due_date_unix: 1543636724
@@ -37,6 +42,7 @@
   text: 'task #6 lower due date'
   created_by_id: 1
   list_id: 1
+  index: 6
   created: 1543626724
   updated: 1543626724
   due_date_unix: 1543616724
@@ -44,6 +50,7 @@
   text: 'task #7 with start date'
   created_by_id: 1
   list_id: 1
+  index: 7
   created: 1543626724
   updated: 1543626724
   start_date_unix: 1544600000
@@ -51,6 +58,7 @@
   text: 'task #8 with end date'
   created_by_id: 1
   list_id: 1
+  index: 8
   created: 1543626724
   updated: 1543626724
   end_date_unix: 1544700000
@@ -58,6 +66,7 @@
   text: 'task #9 with start and end date'
   created_by_id: 1
   list_id: 1
+  index: 9
   created: 1543626724
   updated: 1543626724
   start_date_unix: 1544600000
@@ -66,108 +75,126 @@
   text: 'task #10 basic'
   created_by_id: 1
   list_id: 1
+  index: 10
   created: 1543626724
   updated: 1543626724
 - id: 11
   text: 'task #11 basic'
   created_by_id: 1
   list_id: 1
+  index: 11
   created: 1543626724
   updated: 1543626724
 - id: 12
   text: 'task #12 basic'
   created_by_id: 1
   list_id: 1
+  index: 12
   created: 1543626724
   updated: 1543626724
 - id: 13
   text: 'task #13 basic other list'
   created_by_id: 1
   list_id: 2
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 14
   text: 'task #14 basic other list'
   created_by_id: 5
   list_id: 5
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 15
   text: 'task #15'
   created_by_id: 6
   list_id: 6
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 16
   text: 'task #16'
   created_by_id: 6
   list_id: 7
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 17
   text: 'task #17'
   created_by_id: 6
   list_id: 8
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 18
   text: 'task #18'
   created_by_id: 6
   list_id: 9
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 19
   text: 'task #19'
   created_by_id: 6
   list_id: 10
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 20
   text: 'task #20'
   created_by_id: 6
   list_id: 11
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 21
   text: 'task #21'
   created_by_id: 6
   list_id: 12
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 22
   text: 'task #22'
   created_by_id: 6
   list_id: 13
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 23
   text: 'task #23'
   created_by_id: 6
   list_id: 14
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 24
   text: 'task #24'
   created_by_id: 6
   list_id: 15
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 25
   text: 'task #25'
   created_by_id: 6
   list_id: 16
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 26
   text: 'task #26'
   created_by_id: 6
   list_id: 17
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 27
   text: 'task #27 with reminders'
   created_by_id: 1
   list_id: 1
+  index: 12
   created: 1543626724
   updated: 1543626724
 - id: 28
@@ -176,24 +203,28 @@
   created_by_id: 1
   repeat_after: 3600
   list_id: 1
+  index: 13
   created: 1543626724
   updated: 1543626724
 - id: 29
   text: 'task #29 with parent task (1)'
   created_by_id: 1
   list_id: 1
+  index: 14
   created: 1543626724
   updated: 1543626724
 - id: 30
   text: 'task #30 with assignees'
   created_by_id: 1
   list_id: 1
+  index: 15
   created: 1543626724
   updated: 1543626724
 - id: 31
   text: 'task #31 with color'
   created_by_id: 1
   list_id: 1
+  index: 16
   hex_color: f0f0f0
   created: 1543626724
   updated: 1543626724
@@ -201,12 +232,14 @@
   text: 'task #32'
   created_by_id: 1
   list_id: 3
+  index: 1
   created: 1543626724
   updated: 1543626724
 - id: 33
   text: 'task #33 with percent done'
   created_by_id: 1
   list_id: 1
+  index: 17
   percent_done: 0.5
   created: 1543626724
   updated: 1543626724

pkg/models/list.go

@@ -29,6 +29,9 @@ type List struct {
 	Title string `xorm:"varchar(250) not null" json:"title" valid:"required,runelength(3|250)" minLength:"3" maxLength:"250"`
 	// The description of the list.
 	Description string `xorm:"longtext null" json:"description"`
+	// The unique list short identifier. Used to build task identifiers.
+	Identifier string `xorm:"varchar(10) null" json:"identifier" valid:"runelength(0|10)" minLength:"0" maxLength:"10"`
+
 	OwnerID     int64 `xorm:"int(11) INDEX not null" json:"-"`
 	NamespaceID int64 `xorm:"int(11) INDEX not null" json:"-" param:"namespace"`
 
@@ -265,6 +268,17 @@ func CreateOrUpdateList(list *List) (err error) {
 		}
 	}
 
+	// Check if the identifier is unique and not empty
+	if list.Identifier != "" {
+		exists, err := x.Where("identifier = ?", list.Identifier).Exist(&List{})
+		if err != nil {
+			return err
+		}
+		if exists {
+			return ErrListIdentifierIsNotUnique{Identifier: list.Identifier}
+		}
+	}
+
 	if list.ID == 0 {
 		_, err = x.Insert(list)
 		metrics.UpdateCount(1, metrics.ListCountKey)

pkg/models/list_create_test.go

@@ -1,97 +0,0 @@
-// Vikunja is a todo-list application to facilitate your life.
-// Copyright 2018-2019 Vikunja and contributors. All rights reserved.
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-package models
-
-import (
-	"github.com/stretchr/testify/assert"
-	"testing"
-)
-
-func TestList_Create(t *testing.T) {
-	// Create test database
-	//assert.NoError(t, LoadFixtures())
-
-	// Get our doer
-	doer, err := GetUserByID(1)
-	assert.NoError(t, err)
-
-	// Dummy list for testing
-	dummylist := List{
-		Title:       "test",
-		Description: "Lorem Ipsum",
-		NamespaceID: 1,
-	}
-
-	// Check if the user can create
-	allowed, _ := dummylist.CanCreate(doer)
-	assert.True(t, allowed)
-
-	// Create it
-	err = dummylist.Create(doer)
-	assert.NoError(t, err)
-
-	// Get the list
-	newdummy := List{ID: dummylist.ID}
-	canRead, err := newdummy.CanRead(doer)
-	assert.NoError(t, err)
-	assert.True(t, canRead)
-	err = newdummy.ReadOne()
-	assert.NoError(t, err)
-	assert.Equal(t, dummylist.Title, newdummy.Title)
-	assert.Equal(t, dummylist.Description, newdummy.Description)
-	assert.Equal(t, dummylist.OwnerID, doer.ID)
-
-	// Check if the user can see it
-	allowed, _ = dummylist.CanRead(doer)
-	assert.True(t, allowed)
-
-	// Try updating a list
-	allowed, _ = dummylist.CanUpdate(doer)
-	assert.True(t, allowed)
-	dummylist.Description = "Lorem Ipsum dolor sit amet."
-	err = dummylist.Update()
-	assert.NoError(t, err)
-
-	// Delete it
-	allowed, _ = dummylist.CanDelete(doer)
-	assert.True(t, allowed)
-
-	err = dummylist.Delete()
-	assert.NoError(t, err)
-
-	// Try updating a nonexistant list
-	err = dummylist.Update()
-	assert.Error(t, err)
-	assert.True(t, IsErrListDoesNotExist(err))
-
-	// Check creation with a nonexistant namespace
-	list3 := List{
-		Title:       "test",
-		Description: "Lorem Ipsum",
-		NamespaceID: 876694,
-	}
-
-	err = list3.Create(doer)
-	assert.Error(t, err)
-	assert.True(t, IsErrNamespaceDoesNotExist(err))
-
-	// Try creating with a nonexistant owner
-	nUser := &User{ID: 9482385}
-	err = dummylist.Create(nUser)
-	assert.Error(t, err)
-	assert.True(t, IsErrUserDoesNotExist(err))
-}

pkg/models/list_read_test.go

@@ -1,50 +0,0 @@
-// Vikunja is a todo-list application to facilitate your life.
-// Copyright 2018-2019 Vikunja and contributors. All rights reserved.
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-package models
-
-import (
-	"github.com/stretchr/testify/assert"
-	"reflect"
-	"testing"
-)
-
-func TestList_ReadAll(t *testing.T) {
-	// Create test database
-	//assert.NoError(t, LoadFixtures())
-
-	// Get all lists for our namespace
-	lists, err := GetListsByNamespaceID(1, &User{})
-	assert.NoError(t, err)
-	assert.Equal(t, len(lists), 2)
-
-	// Get all lists our user has access to
-	u, err := GetUserByID(1)
-	assert.NoError(t, err)
-
-	lists2 := List{}
-	lists3, _, _, err := lists2.ReadAll(u, "", 1, 50)
-
-	assert.NoError(t, err)
-	assert.Equal(t, reflect.TypeOf(lists3).Kind(), reflect.Slice)
-	s := reflect.ValueOf(lists3)
-	assert.Equal(t, 16, s.Len())
-
-	// Try getting lists for a nonexistant user
-	_, _, _, err = lists2.ReadAll(&User{ID: 984234}, "", 1, 50)
-	assert.Error(t, err)
-	assert.True(t, IsErrUserDoesNotExist(err))
-}

pkg/models/list_test.go

@@ -0,0 +1,157 @@
+// Vikunja is a todo-list application to facilitate your life.
+// Copyright 2018-2019 Vikunja and contributors. All rights reserved.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package models
+
+import (
+	"github.com/stretchr/testify/assert"
+	"reflect"
+	"testing"
+)
+
+func TestList_CreateOrUpdate(t *testing.T) {
+	user := &User{
+		ID:       1,
+		Username: "user1",
+		Email:    "user1@example.com",
+	}
+
+	t.Run("create", func(t *testing.T) {
+		t.Run("normal", func(t *testing.T) {
+			initFixtures(t)
+			list := List{
+				Title:       "test",
+				Description: "Lorem Ipsum",
+				NamespaceID: 1,
+			}
+			err := list.Create(user)
+			assert.NoError(t, err)
+		})
+		t.Run("nonexistant namespace", func(t *testing.T) {
+			initFixtures(t)
+			list := List{
+				Title:       "test",
+				Description: "Lorem Ipsum",
+				NamespaceID: 999999,
+			}
+
+			err := list.Create(user)
+			assert.Error(t, err)
+			assert.True(t, IsErrNamespaceDoesNotExist(err))
+		})
+		t.Run("nonexistant owner", func(t *testing.T) {
+			initFixtures(t)
+			user := &User{ID: 9482385}
+			list := List{
+				Title:       "test",
+				Description: "Lorem Ipsum",
+				NamespaceID: 1,
+			}
+			err := list.Create(user)
+			assert.Error(t, err)
+			assert.True(t, IsErrUserDoesNotExist(err))
+		})
+		t.Run("existing identifier", func(t *testing.T) {
+			initFixtures(t)
+			list := List{
+				Title:       "test",
+				Description: "Lorem Ipsum",
+				Identifier:  "test1",
+				NamespaceID: 1,
+			}
+
+			err := list.Create(user)
+			assert.Error(t, err)
+			assert.True(t, IsErrListIdentifierIsNotUnique(err))
+		})
+	})
+
+	t.Run("update", func(t *testing.T) {
+		t.Run("normal", func(t *testing.T) {
+			initFixtures(t)
+			list := List{
+				ID:          1,
+				Title:       "test",
+				Description: "Lorem Ipsum",
+				NamespaceID: 1,
+			}
+			list.Description = "Lorem Ipsum dolor sit amet."
+			err := list.Update()
+			assert.NoError(t, err)
+
+		})
+		t.Run("nonexistant", func(t *testing.T) {
+			initFixtures(t)
+			list := List{
+				ID:    99999999,
+				Title: "test",
+			}
+			err := list.Update()
+			assert.Error(t, err)
+			assert.True(t, IsErrListDoesNotExist(err))
+
+		})
+		t.Run("existing identifier", func(t *testing.T) {
+			initFixtures(t)
+			list := List{
+				Title:       "test",
+				Description: "Lorem Ipsum",
+				Identifier:  "test1",
+				NamespaceID: 1,
+			}
+
+			err := list.Create(user)
+			assert.Error(t, err)
+			assert.True(t, IsErrListIdentifierIsNotUnique(err))
+		})
+	})
+}
+
+func TestList_Delete(t *testing.T) {
+	initFixtures(t)
+	list := List{
+		ID: 1,
+	}
+	err := list.Delete()
+	assert.NoError(t, err)
+}
+
+func TestList_ReadAll(t *testing.T) {
+	t.Run("all in namespace", func(t *testing.T) {
+		initFixtures(t)
+		// Get all lists for our namespace
+		lists, err := GetListsByNamespaceID(1, &User{})
+		assert.NoError(t, err)
+		assert.Equal(t, len(lists), 2)
+	})
+	t.Run("all lists for user", func(t *testing.T) {
+		u := &User{ID: 1}
+		list := List{}
+		lists3, _, _, err := list.ReadAll(u, "", 1, 50)
+
+		assert.NoError(t, err)
+		assert.Equal(t, reflect.TypeOf(lists3).Kind(), reflect.Slice)
+		s := reflect.ValueOf(lists3)
+		assert.Equal(t, 16, s.Len())
+	})
+	t.Run("lists for nonexistant user", func(t *testing.T) {
+		user := &User{ID: 999999}
+		list := List{}
+		_, _, _, err := list.ReadAll(user, "", 1, 50)
+		assert.Error(t, err)
+		assert.True(t, IsErrUserDoesNotExist(err))
+	})
+}

pkg/models/task_collection_test.go

@@ -55,6 +55,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 		ID:          1,
 		Text:        "task #1",
 		Description: "Lorem Ipsum",
+		Identifier:  "test1-1",
+		Index:       1,
 		CreatedByID: 1,
 		CreatedBy:   user1,
 		ListID:      1,
@@ -73,6 +75,7 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 				{
 					ID:          29,
 					Text:        "task #29 with parent task (1)",
+					Index:       14,
 					CreatedByID: 1,
 					ListID:      1,
 					Created:     1543626724,
@@ -109,6 +112,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task2 := &Task{
 		ID:          2,
 		Text:        "task #2 done",
+		Identifier:  "test1-2",
+		Index:       2,
 		Done:        true,
 		CreatedByID: 1,
 		CreatedBy:   user1,
@@ -130,6 +135,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task3 := &Task{
 		ID:           3,
 		Text:         "task #3 high prio",
+		Identifier:   "test1-3",
+		Index:        3,
 		CreatedByID:  1,
 		CreatedBy:    user1,
 		ListID:       1,
@@ -141,6 +148,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task4 := &Task{
 		ID:           4,
 		Text:         "task #4 low prio",
+		Identifier:   "test1-4",
+		Index:        4,
 		CreatedByID:  1,
 		CreatedBy:    user1,
 		ListID:       1,
@@ -152,6 +161,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task5 := &Task{
 		ID:           5,
 		Text:         "task #5 higher due date",
+		Identifier:   "test1-5",
+		Index:        5,
 		CreatedByID:  1,
 		CreatedBy:    user1,
 		ListID:       1,
@@ -163,6 +174,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task6 := &Task{
 		ID:           6,
 		Text:         "task #6 lower due date",
+		Identifier:   "test1-6",
+		Index:        6,
 		CreatedByID:  1,
 		CreatedBy:    user1,
 		ListID:       1,
@@ -174,6 +187,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task7 := &Task{
 		ID:            7,
 		Text:          "task #7 with start date",
+		Identifier:    "test1-7",
+		Index:         7,
 		CreatedByID:   1,
 		CreatedBy:     user1,
 		ListID:        1,
@@ -185,6 +200,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task8 := &Task{
 		ID:           8,
 		Text:         "task #8 with end date",
+		Identifier:   "test1-8",
+		Index:        8,
 		CreatedByID:  1,
 		CreatedBy:    user1,
 		ListID:       1,
@@ -196,6 +213,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task9 := &Task{
 		ID:            9,
 		Text:          "task #9 with start and end date",
+		Identifier:    "test1-9",
+		Index:         9,
 		CreatedByID:   1,
 		CreatedBy:     user1,
 		ListID:        1,
@@ -208,6 +227,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task10 := &Task{
 		ID:           10,
 		Text:         "task #10 basic",
+		Identifier:   "test1-10",
+		Index:        10,
 		CreatedByID:  1,
 		CreatedBy:    user1,
 		ListID:       1,
@@ -218,6 +239,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task11 := &Task{
 		ID:           11,
 		Text:         "task #11 basic",
+		Identifier:   "test1-11",
+		Index:        11,
 		CreatedByID:  1,
 		CreatedBy:    user1,
 		ListID:       1,
@@ -228,6 +251,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task12 := &Task{
 		ID:           12,
 		Text:         "task #12 basic",
+		Identifier:   "test1-12",
+		Index:        12,
 		CreatedByID:  1,
 		CreatedBy:    user1,
 		ListID:       1,
@@ -238,6 +263,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task15 := &Task{
 		ID:           15,
 		Text:         "task #15",
+		Identifier:   "test6-1",
+		Index:        1,
 		CreatedByID:  6,
 		CreatedBy:    user6,
 		ListID:       6,
@@ -248,6 +275,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task16 := &Task{
 		ID:           16,
 		Text:         "task #16",
+		Identifier:   "test7-1",
+		Index:        1,
 		CreatedByID:  6,
 		CreatedBy:    user6,
 		ListID:       7,
@@ -258,6 +287,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task17 := &Task{
 		ID:           17,
 		Text:         "task #17",
+		Identifier:   "test8-1",
+		Index:        1,
 		CreatedByID:  6,
 		CreatedBy:    user6,
 		ListID:       8,
@@ -268,6 +299,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task18 := &Task{
 		ID:           18,
 		Text:         "task #18",
+		Identifier:   "test9-1",
+		Index:        1,
 		CreatedByID:  6,
 		CreatedBy:    user6,
 		ListID:       9,
@@ -278,6 +311,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task19 := &Task{
 		ID:           19,
 		Text:         "task #19",
+		Identifier:   "test10-1",
+		Index:        1,
 		CreatedByID:  6,
 		CreatedBy:    user6,
 		ListID:       10,
@@ -288,6 +323,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task20 := &Task{
 		ID:           20,
 		Text:         "task #20",
+		Identifier:   "test11-1",
+		Index:        1,
 		CreatedByID:  6,
 		CreatedBy:    user6,
 		ListID:       11,
@@ -298,6 +335,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task21 := &Task{
 		ID:           21,
 		Text:         "task #21",
+		Identifier:   "test12-1",
+		Index:        1,
 		CreatedByID:  6,
 		CreatedBy:    user6,
 		ListID:       12,
@@ -308,6 +347,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task22 := &Task{
 		ID:           22,
 		Text:         "task #22",
+		Identifier:   "test13-1",
+		Index:        1,
 		CreatedByID:  6,
 		CreatedBy:    user6,
 		ListID:       13,
@@ -318,6 +359,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task23 := &Task{
 		ID:           23,
 		Text:         "task #23",
+		Identifier:   "test14-1",
+		Index:        1,
 		CreatedByID:  6,
 		CreatedBy:    user6,
 		ListID:       14,
@@ -328,6 +371,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task24 := &Task{
 		ID:           24,
 		Text:         "task #24",
+		Identifier:   "test15-1",
+		Index:        1,
 		CreatedByID:  6,
 		CreatedBy:    user6,
 		ListID:       15,
@@ -338,6 +383,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task25 := &Task{
 		ID:           25,
 		Text:         "task #25",
+		Identifier:   "test16-1",
+		Index:        1,
 		CreatedByID:  6,
 		CreatedBy:    user6,
 		ListID:       16,
@@ -348,6 +395,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task26 := &Task{
 		ID:           26,
 		Text:         "task #26",
+		Identifier:   "test17-1",
+		Index:        1,
 		CreatedByID:  6,
 		CreatedBy:    user6,
 		ListID:       17,
@@ -358,6 +407,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task27 := &Task{
 		ID:            27,
 		Text:          "task #27 with reminders",
+		Identifier:    "test1-12",
+		Index:         12,
 		CreatedByID:   1,
 		CreatedBy:     user1,
 		RemindersUnix: []int64{1543626724, 1543626824},
@@ -369,6 +420,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task28 := &Task{
 		ID:           28,
 		Text:         "task #28 with repeat after",
+		Identifier:   "test1-13",
+		Index:        13,
 		CreatedByID:  1,
 		CreatedBy:    user1,
 		ListID:       1,
@@ -380,6 +433,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task29 := &Task{
 		ID:          29,
 		Text:        "task #29 with parent task (1)",
+		Identifier:  "test1-14",
+		Index:       14,
 		CreatedByID: 1,
 		CreatedBy:   user1,
 		ListID:      1,
@@ -389,6 +444,7 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 					ID:          1,
 					Text:        "task #1",
 					Description: "Lorem Ipsum",
+					Index:       1,
 					CreatedByID: 1,
 					ListID:      1,
 					Created:     1543626724,
@@ -402,6 +458,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task30 := &Task{
 		ID:          30,
 		Text:        "task #30 with assignees",
+		Identifier:  "test1-15",
+		Index:       15,
 		CreatedByID: 1,
 		CreatedBy:   user1,
 		ListID:      1,
@@ -416,6 +474,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task31 := &Task{
 		ID:           31,
 		Text:         "task #31 with color",
+		Identifier:   "test1-16",
+		Index:        16,
 		HexColor:     "f0f0f0",
 		CreatedByID:  1,
 		CreatedBy:    user1,
@@ -427,6 +487,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task32 := &Task{
 		ID:           32,
 		Text:         "task #32",
+		Identifier:   "test3-1",
+		Index:        1,
 		CreatedByID:  1,
 		CreatedBy:    user1,
 		ListID:       3,
@@ -437,6 +499,8 @@ func TestTaskCollection_ReadAll(t *testing.T) {
 	task33 := &Task{
 		ID:           33,
 		Text:         "task #33 with percent done",
+		Identifier:   "test1-17",
+		Index:        17,
 		CreatedByID:  1,
 		CreatedBy:    user1,
 		ListID:       1,

pkg/models/tasks.go

@@ -23,6 +23,7 @@ import (
 	"code.vikunja.io/web"
 	"github.com/imdario/mergo"
 	"sort"
+	"strconv"
 	"time"
 )
 
@@ -62,6 +63,11 @@ type Task struct {
 	// Determines how far a task is left from being done
 	PercentDone float64 `xorm:"DOUBLE null" json:"percentDone"`
 
+	// The task identifier, based on the list identifier and the task's index
+	Identifier string `xorm:"-" json:"identifier"`
+	// The task index, calculated per list
+	Index int64 `xorm:"int(11) not null default 0" json:"index"`
+
 	// The UID is currently not used for anything other than caldav, which is why we don't expose it over json
 	UID string `xorm:"varchar(250) null" json:"-"`
 
@@ -230,19 +236,6 @@ func getTasksForLists(lists []*List, opts *taskOptions) (tasks []*Task, resultCo
 	return tasks, resultCount, totalItems, err
 }
 
-// GetTasksByListID gets all todotasks for a list
-func GetTasksByListID(listID int64) (tasks []*Task, err error) {
-	// make a map so we can put in a lot of other stuff more easily
-	taskMap := make(map[int64]*Task, len(tasks))
-	err = x.Where("list_id = ?", listID).Find(&taskMap)
-	if err != nil {
-		return
-	}
-
-	tasks, err = addMoreInfoToTasks(taskMap)
-	return
-}
-
 // GetTaskByIDSimple returns a raw task without extra data by the task ID
 func GetTaskByIDSimple(taskID int64) (task Task, err error) {
 	if taskID < 1 {
@@ -314,9 +307,11 @@ func addMoreInfoToTasks(taskMap map[int64]*Task) (tasks []*Task, err error) {
 	// Get all users & task ids and put them into the array
 	var userIDs []int64
 	var taskIDs []int64
+	var listIDs []int64
 	for _, i := range taskMap {
 		taskIDs = append(taskIDs, i.ID)
 		userIDs = append(userIDs, i.CreatedByID)
+		listIDs = append(listIDs, i.ListID)
 	}
 
 	// Get all assignees
@@ -399,6 +394,13 @@ func addMoreInfoToTasks(taskMap map[int64]*Task) (tasks []*Task, err error) {
 		taskRemindersUnix[r.TaskID] = append(taskRemindersUnix[r.TaskID], r.ReminderUnix)
 	}
 
+	// Get all identifiers
+	lists := make(map[int64]*List, len(listIDs))
+	err = x.In("id", listIDs).Find(&lists)
+	if err != nil {
+		return
+	}
+
 	// Add all user objects to the appropriate tasks
 	for _, task := range taskMap {
 
@@ -410,6 +412,9 @@ func addMoreInfoToTasks(taskMap map[int64]*Task) (tasks []*Task, err error) {
 
 		// Prepare the subtasks
 		task.RelatedTasks = make(RelatedTaskMap)
+
+		// Build the task identifier from the list identifier and task index
+		task.Identifier = lists[task.ListID].Identifier + "-" + strconv.FormatInt(task.Index, 10)
 	}
 
 	// Get all related tasks
@@ -785,7 +790,7 @@ func (t *Task) Delete() (err error) {
 // @Success 200 {object} models.Task "The task"
 // @Failure 404 {object} models.Message "Task not found"
 // @Failure 500 {object} models.Message "Internal error"
-// @Router /tasks/all [get]
+// @Router /tasks/{ID} [get]
 func (t *Task) ReadOne() (err error) {
 
 	taskMap := make(map[int64]*Task, 1)

pkg/models/unit_tests.go

@@ -24,9 +24,11 @@ import (
 	"code.vikunja.io/api/pkg/mail"
 	"fmt"
 	"github.com/go-xorm/xorm"
+	"github.com/stretchr/testify/assert"
 	"gopkg.in/testfixtures.v2"
 	"os"
 	"path/filepath"
+	"testing"
 )
 
 // SetupTests takes care of seting up the db, fixtures etc.
@@ -84,3 +86,9 @@ func createTestEngine(fixturesDir string) error {
 func initSchema(tx *xorm.Engine) error {
 	return tx.Sync2(GetTables()...)
 }
+
+func initFixtures(t *testing.T) {
+	// Init db fixtures
+	err := db.LoadFixtures()
+	assert.NoError(t, err)
+}

pkg/swagger/docs.go

@@ -1,6 +1,6 @@
 // GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
 // This file was generated by swaggo/swag at
-// 2019-12-07 20:29:10.551783293 +0100 CET m=+0.172017440
+// 2019-12-07 22:54:02.661375666 +0100 CET m=+0.164990732
 
 package swagger
 
@@ -2649,7 +2649,7 @@ var doc = `{
                         "JWTKeyAuth": []
                     }
                 ],
-                "description": "Returns one task by its ID",
+                "description": "Returns all tasks on any list the user has access to.",
                 "consumes": [
                     "application/json"
                 ],
@@ -2659,27 +2659,53 @@ var doc = `{
                 "tags": [
                     "task"
                 ],
-                "summary": "Get one task",
+                "summary": "Get tasks",
                 "parameters": [
                     {
                         "type": "integer",
-                        "description": "The task ID",
+                        "description": "The page number. Used for pagination. If not provided, the first page of results is returned.",
-                        "name": "ID",
+                        "name": "page",
-                        "in": "path",
+                        "in": "query"
-                        "required": true
+                    },
+                    {
+                        "type": "integer",
+                        "description": "The maximum number of items per page. Note this parameter is limited by the configured maximum of items per page.",
+                        "name": "per_page",
+                        "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "description": "Search tasks by task text.",
+                        "name": "s",
+                        "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "description": "The sorting parameter. Possible values to sort by are priority, prioritydesc, priorityasc, duedate, duedatedesc, duedateasc.",
+                        "name": "sort",
+                        "in": "query"
+                    },
+                    {
+                        "type": "integer",
+                        "description": "The start date parameter to filter by. Expects a unix timestamp. If no end date, but a start date is specified, the end date is set to the current time.",
+                        "name": "startdate",
+                        "in": "query"
+                    },
+                    {
+                        "type": "integer",
+                        "description": "The end date parameter to filter by. Expects a unix timestamp. If no start date, but an end date is specified, the start date is set to the current time.",
+                        "name": "enddate",
+                        "in": "query"
                     }
                 ],
                 "responses": {
                     "200": {
-                        "description": "The task",
+                        "description": "The tasks",
                         "schema": {
+                            "type": "array",
+                            "items": {
                                 "$ref": "#/definitions/models.Task"
                             }
-                    },
-                    "404": {
-                        "description": "Task not found",
-                        "schema": {
-                            "$ref": "#/definitions/models.Message"
                         }
                     },
                     "500": {
@@ -2749,6 +2775,55 @@ var doc = `{
                 }
             }
         },
+        "/tasks/{ID}": {
+            "get": {
+                "security": [
+                    {
+                        "JWTKeyAuth": []
+                    }
+                ],
+                "description": "Returns one task by its ID",
+                "consumes": [
+                    "application/json"
+                ],
+                "produces": [
+                    "application/json"
+                ],
+                "tags": [
+                    "task"
+                ],
+                "summary": "Get one task",
+                "parameters": [
+                    {
+                        "type": "integer",
+                        "description": "The task ID",
+                        "name": "ID",
+                        "in": "path",
+                        "required": true
+                    }
+                ],
+                "responses": {
+                    "200": {
+                        "description": "The task",
+                        "schema": {
+                            "$ref": "#/definitions/models.Task"
+                        }
+                    },
+                    "404": {
+                        "description": "Task not found",
+                        "schema": {
+                            "$ref": "#/definitions/models.Message"
+                        }
+                    },
+                    "500": {
+                        "description": "Internal error",
+                        "schema": {
+                            "$ref": "#/definitions/models.Message"
+                        }
+                    }
+                }
+            }
+        },
         "/tasks/{id}": {
             "post": {
                 "security": [
@@ -4481,6 +4556,14 @@ var doc = `{
                     "description": "The unique, numeric id of this task.",
                     "type": "integer"
                 },
+                "identifier": {
+                    "description": "The task identifier, based on the list identifier and the task's index",
+                    "type": "string"
+                },
+                "index": {
+                    "description": "The task index, calculated per list",
+                    "type": "integer"
+                },
                 "labels": {
                     "description": "An array of labels which are associated with this task.",
                     "type": "array",
@@ -4663,6 +4746,12 @@ var doc = `{
                     "description": "The unique, numeric id of this list.",
                     "type": "integer"
                 },
+                "identifier": {
+                    "description": "The unique list short identifier. Used to build task identifiers.",
+                    "type": "string",
+                    "maxLength": 10,
+                    "minLength": 0
+                },
                 "owner": {
                     "description": "The user who created this list.",
                     "type": "object",
@@ -4894,6 +4983,14 @@ var doc = `{
                             "description": "The unique, numeric id of this task.",
                             "type": "integer"
                         },
+                        "identifier": {
+                            "description": "The task identifier, based on the list identifier and the task's index",
+                            "type": "string"
+                        },
+                        "index": {
+                            "description": "The task index, calculated per list",
+                            "type": "integer"
+                        },
                         "labels": {
                             "description": "An array of labels which are associated with this task.",
                             "type": "array",
@@ -5002,6 +5099,14 @@ var doc = `{
                     "description": "The unique, numeric id of this task.",
                     "type": "integer"
                 },
+                "identifier": {
+                    "description": "The task identifier, based on the list identifier and the task's index",
+                    "type": "string"
+                },
+                "index": {
+                    "description": "The task index, calculated per list",
+                    "type": "integer"
+                },
                 "labels": {
                     "description": "An array of labels which are associated with this task.",
                     "type": "array",

pkg/swagger/swagger.json

@@ -2631,7 +2631,7 @@
                         "JWTKeyAuth": []
                     }
                 ],
-                "description": "Returns one task by its ID",
+                "description": "Returns all tasks on any list the user has access to.",
                 "consumes": [
                     "application/json"
                 ],
@@ -2641,27 +2641,53 @@
                 "tags": [
                     "task"
                 ],
-                "summary": "Get one task",
+                "summary": "Get tasks",
                 "parameters": [
                     {
                         "type": "integer",
-                        "description": "The task ID",
+                        "description": "The page number. Used for pagination. If not provided, the first page of results is returned.",
-                        "name": "ID",
+                        "name": "page",
-                        "in": "path",
+                        "in": "query"
-                        "required": true
+                    },
+                    {
+                        "type": "integer",
+                        "description": "The maximum number of items per page. Note this parameter is limited by the configured maximum of items per page.",
+                        "name": "per_page",
+                        "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "description": "Search tasks by task text.",
+                        "name": "s",
+                        "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "description": "The sorting parameter. Possible values to sort by are priority, prioritydesc, priorityasc, duedate, duedatedesc, duedateasc.",
+                        "name": "sort",
+                        "in": "query"
+                    },
+                    {
+                        "type": "integer",
+                        "description": "The start date parameter to filter by. Expects a unix timestamp. If no end date, but a start date is specified, the end date is set to the current time.",
+                        "name": "startdate",
+                        "in": "query"
+                    },
+                    {
+                        "type": "integer",
+                        "description": "The end date parameter to filter by. Expects a unix timestamp. If no start date, but an end date is specified, the start date is set to the current time.",
+                        "name": "enddate",
+                        "in": "query"
                     }
                 ],
                 "responses": {
                     "200": {
-                        "description": "The task",
+                        "description": "The tasks",
                         "schema": {
+                            "type": "array",
+                            "items": {
                                 "$ref": "#/definitions/models.Task"
                             }
-                    },
-                    "404": {
-                        "description": "Task not found",
-                        "schema": {
-                            "$ref": "#/definitions/models.Message"
                         }
                     },
                     "500": {
@@ -2731,6 +2757,55 @@
                 }
             }
         },
+        "/tasks/{ID}": {
+            "get": {
+                "security": [
+                    {
+                        "JWTKeyAuth": []
+                    }
+                ],
+                "description": "Returns one task by its ID",
+                "consumes": [
+                    "application/json"
+                ],
+                "produces": [
+                    "application/json"
+                ],
+                "tags": [
+                    "task"
+                ],
+                "summary": "Get one task",
+                "parameters": [
+                    {
+                        "type": "integer",
+                        "description": "The task ID",
+                        "name": "ID",
+                        "in": "path",
+                        "required": true
+                    }
+                ],
+                "responses": {
+                    "200": {
+                        "description": "The task",
+                        "schema": {
+                            "$ref": "#/definitions/models.Task"
+                        }
+                    },
+                    "404": {
+                        "description": "Task not found",
+                        "schema": {
+                            "$ref": "#/definitions/models.Message"
+                        }
+                    },
+                    "500": {
+                        "description": "Internal error",
+                        "schema": {
+                            "$ref": "#/definitions/models.Message"
+                        }
+                    }
+                }
+            }
+        },
         "/tasks/{id}": {
             "post": {
                 "security": [
@@ -4462,6 +4537,14 @@
                     "description": "The unique, numeric id of this task.",
                     "type": "integer"
                 },
+                "identifier": {
+                    "description": "The task identifier, based on the list identifier and the task's index",
+                    "type": "string"
+                },
+                "index": {
+                    "description": "The task index, calculated per list",
+                    "type": "integer"
+                },
                 "labels": {
                     "description": "An array of labels which are associated with this task.",
                     "type": "array",
@@ -4644,6 +4727,12 @@
                     "description": "The unique, numeric id of this list.",
                     "type": "integer"
                 },
+                "identifier": {
+                    "description": "The unique list short identifier. Used to build task identifiers.",
+                    "type": "string",
+                    "maxLength": 10,
+                    "minLength": 0
+                },
                 "owner": {
                     "description": "The user who created this list.",
                     "type": "object",
@@ -4875,6 +4964,14 @@
                             "description": "The unique, numeric id of this task.",
                             "type": "integer"
                         },
+                        "identifier": {
+                            "description": "The task identifier, based on the list identifier and the task's index",
+                            "type": "string"
+                        },
+                        "index": {
+                            "description": "The task index, calculated per list",
+                            "type": "integer"
+                        },
                         "labels": {
                             "description": "An array of labels which are associated with this task.",
                             "type": "array",
@@ -4983,6 +5080,14 @@
                     "description": "The unique, numeric id of this task.",
                     "type": "integer"
                 },
+                "identifier": {
+                    "description": "The task identifier, based on the list identifier and the task's index",
+                    "type": "string"
+                },
+                "index": {
+                    "description": "The task index, calculated per list",
+                    "type": "integer"
+                },
                 "labels": {
                     "description": "An array of labels which are associated with this task.",
                     "type": "array",

pkg/swagger/swagger.yaml

@@ -84,6 +84,13 @@ definitions:
       id:
         description: The unique, numeric id of this task.
         type: integer
+      identifier:
+        description: The task identifier, based on the list identifier and the task's
+          index
+        type: string
+      index:
+        description: The task index, calculated per list
+        type: integer
       labels:
         description: An array of labels which are associated with this task.
         items:
@@ -232,6 +239,11 @@ definitions:
       id:
         description: The unique, numeric id of this list.
         type: integer
+      identifier:
+        description: The unique list short identifier. Used to build task identifiers.
+        maxLength: 10
+        minLength: 0
+        type: string
       owner:
         $ref: '#/definitions/models.User'
         description: The user who created this list.
@@ -413,6 +425,13 @@ definitions:
           id:
             description: The unique, numeric id of this task.
             type: integer
+          identifier:
+            description: The task identifier, based on the list identifier and the
+              task's index
+            type: string
+          index:
+            description: The task index, calculated per list
+            type: integer
           labels:
             description: An array of labels which are associated with this task.
             items:
@@ -500,6 +519,13 @@ definitions:
       id:
         description: The unique, numeric id of this task.
         type: integer
+      identifier:
+        description: The task identifier, based on the list identifier and the task's
+          index
+        type: string
+      index:
+        description: The task index, calculated per list
+        type: integer
       labels:
         description: An array of labels which are associated with this task.
         items:
@@ -2587,6 +2613,37 @@ paths:
       summary: Get an auth token for a share
       tags:
       - sharing
+  /tasks/{ID}:
+    get:
+      consumes:
+      - application/json
+      description: Returns one task by its ID
+      parameters:
+      - description: The task ID
+        in: path
+        name: ID
+        required: true
+        type: integer
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: The task
+          schema:
+            $ref: '#/definitions/models.Task'
+        "404":
+          description: Task not found
+          schema:
+            $ref: '#/definitions/models.Message'
+        "500":
+          description: Internal error
+          schema:
+            $ref: '#/definitions/models.Message'
+      security:
+      - JWTKeyAuth: []
+      summary: Get one task
+      tags:
+      - task
   /tasks/{id}:
     delete:
       description: Deletes a task from a list. This does not mean "mark it done".
@@ -3241,31 +3298,55 @@ paths:
     get:
       consumes:
       - application/json
-      description: Returns one task by its ID
+      description: Returns all tasks on any list the user has access to.
       parameters:
-      - description: The task ID
+      - description: The page number. Used for pagination. If not provided, the first
-        in: path
+          page of results is returned.
-        name: ID
+        in: query
-        required: true
+        name: page
+        type: integer
+      - description: The maximum number of items per page. Note this parameter is
+          limited by the configured maximum of items per page.
+        in: query
+        name: per_page
+        type: integer
+      - description: Search tasks by task text.
+        in: query
+        name: s
+        type: string
+      - description: The sorting parameter. Possible values to sort by are priority,
+          prioritydesc, priorityasc, duedate, duedatedesc, duedateasc.
+        in: query
+        name: sort
+        type: string
+      - description: The start date parameter to filter by. Expects a unix timestamp.
+          If no end date, but a start date is specified, the end date is set to the
+          current time.
+        in: query
+        name: startdate
+        type: integer
+      - description: The end date parameter to filter by. Expects a unix timestamp.
+          If no start date, but an end date is specified, the start date is set to
+          the current time.
+        in: query
+        name: enddate
         type: integer
       produces:
       - application/json
       responses:
         "200":
-          description: The task
+          description: The tasks
           schema:
+            items:
               $ref: '#/definitions/models.Task'
-        "404":
+            type: array
-          description: Task not found
-          schema:
-            $ref: '#/definitions/models.Message'
         "500":
           description: Internal error
           schema:
             $ref: '#/definitions/models.Message'
       security:
       - JWTKeyAuth: []
-      summary: Get one task
+      summary: Get tasks
       tags:
       - task
   /tasks/bulk: