Implemented method to delete a namespace

Featurecreep.md

@@ -156,6 +156,7 @@ Teams sind global, d.h. Ein Team kann mehrere Namespaces verwalten.
 * [ ] Namen finden
 * [ ] Alle Packages umziehen
 * [x] Swagger UI aufsetzen
+* [ ] Bessere Fehlermeldungen wenn das Model was ankommt falsch ist und nicht geparst werden kann
 
 * [ ] Globale Limits für anlegbare Listen + Namespaces
 * [ ] Mgl., dass die Instanz geschlossen ist, also sich keiner registrieren kann, und man sich einloggen muss

models/error.go

@@ -258,4 +258,18 @@ func (err ErrUserDoesNotHaveAccessToNamespace) Error() string {
 	return fmt.Sprintf("You need to be namespace owner to do that [NamespaceID: %d, UserID: %d]", err.NamespaceID, err.UserID)
 }
 
+// ErrUserNeedsToBeNamespaceAdmin represents an error, where the user is not the owner of that namespace (used i.e. when deleting a namespace)
+type ErrUserNeedsToBeNamespaceAdmin struct {
+	NamespaceID int64
+	UserID      int64
+}
 
+// IsErrUserNeedsToBeNamespaceAdmin checks if an error is a ErrNamespaceDoesNotExist.
+func IsErrUserNeedsToBeNamespaceAdmin(err error) bool {
+	_, ok := err.(ErrUserNeedsToBeNamespaceAdmin)
+	return ok
+}
+
+func (err ErrUserNeedsToBeNamespaceAdmin) Error() string {
+	return fmt.Sprintf("You need to be namespace owner to do that [NamespaceID: %d, UserID: %d]", err.NamespaceID, err.UserID)
+}

models/namespace_delete.go

@@ -0,0 +1,43 @@
+package models
+
+func DeleteNamespaceByID(namespaceID int64, doer *User) (err error) {
+
+	// Check if the namespace exists
+	namespace, err := GetNamespaceByID(namespaceID)
+	if err != nil {
+		return
+	}
+
+	// Check if the user is namespace admin
+	err = doer.IsNamespaceAdmin(&namespace)
+	if err != nil {
+		return
+	}
+
+	// Delete the namespace
+	_, err = x.ID(namespaceID).Delete(&Namespace{})
+	if err != nil {
+		return
+	}
+
+	// Delete all lists with their items
+	lists, err := GetListsByNamespaceID(namespaceID)
+	var listIDs []int64
+	for _, list := range lists {
+		listIDs = append(listIDs, list.ID)
+	}
+
+	// Delete items
+	_, err = x.In("list_id", listIDs).Delete(&ListItem{})
+	if err != nil {
+		return
+	}
+
+	// Delete the lists
+	_, err = x.In("id", listIDs).Delete(&List{})
+	if err != nil {
+		return
+	}
+
+	return
+}

models/namespaces.go

@@ -36,15 +36,15 @@ const (
 	NamespaceRightAdmin
 )
 
-func (user *User) IsNamespaceAdmin(namespace *Namespace) (ok bool, err error) {
+func (user *User) IsNamespaceAdmin(namespace *Namespace) (err error) {
 	// Owners always have admin rights
 	if user.ID == namespace.Owner.ID {
-		return true, nil
+		return nil
 	}
 
 	// Check if that user is in a team which has admin rights to that namespace
 
-	return
+	return ErrUserNeedsToBeNamespaceAdmin{UserID: user.ID, NamespaceID: namespace.ID}
 }
 
 func (user *User) HasNamespaceAccess(namespace *Namespace) (err error) {

public/swagger/swagger.v1.json

@@ -487,6 +487,45 @@
             "$ref": "#/responses/Message"
           }
         }
+      },
+      "delete": {
+        "consumes": [
+          "application/json"
+        ],
+        "produces": [
+          "application/json"
+        ],
+        "tags": [
+          "namespaces"
+        ],
+        "summary": "Deletes a namespace with all lists",
+        "operationId": "deleteNamespace",
+        "parameters": [
+          {
+            "type": "string",
+            "description": "ID of the namespace to delete",
+            "name": "namespaceID",
+            "in": "path",
+            "required": true
+          }
+        ],
+        "responses": {
+          "200": {
+            "$ref": "#/responses/Message"
+          },
+          "400": {
+            "$ref": "#/responses/Message"
+          },
+          "403": {
+            "$ref": "#/responses/Message"
+          },
+          "404": {
+            "$ref": "#/responses/Message"
+          },
+          "500": {
+            "$ref": "#/responses/Message"
+          }
+        }
       }
     },
     "/namespaces/{namespaceID}/lists": {

routes/api/v1/namespace_add_update.go

@@ -117,14 +117,15 @@ func addOrUpdateNamespace(c echo.Context) error {
 		if err != nil {
 			return c.JSON(http.StatusInternalServerError, models.Message{"An error occured."})
 		}
-		has, err := user.IsNamespaceAdmin(&oldNamespace)
+		err = user.IsNamespaceAdmin(&oldNamespace)
 		if err != nil {
-			return c.JSON(http.StatusInternalServerError, models.Message{"An error occured."})
-		}
-		if !has {
+			if models.IsErrUserNeedsToBeNamespaceAdmin(err) {
 				return c.JSON(http.StatusForbidden, models.Message{"You need to be namespace admin to edit a namespace."})
 			}
 
+			return c.JSON(http.StatusInternalServerError, models.Message{"An error occured."})
+		}
+
 		err = models.CreateOrUpdateNamespace(namespace)
 		if err != nil {
 			return c.JSON(http.StatusInternalServerError, models.Message{"An error occured."})

routes/api/v1/namespace_delete.go

@@ -0,0 +1,68 @@
+package v1
+
+import (
+	"git.kolaente.de/konrad/list/models"
+	"github.com/labstack/echo"
+	"net/http"
+	"strconv"
+)
+
+func DeleteNamespaceByID(c echo.Context) error {
+	// swagger:operation DELETE /namespaces/{namespaceID} namespaces deleteNamespace
+	// ---
+	// summary: Deletes a namespace with all lists
+	// consumes:
+	// - application/json
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: namespaceID
+	//   in: path
+	//   description: ID of the namespace to delete
+	//   type: string
+	//   required: true
+	// responses:
+	//   "200":
+	//     "$ref": "#/responses/Message"
+	//   "400":
+	//     "$ref": "#/responses/Message"
+	//   "403":
+	//     "$ref": "#/responses/Message"
+	//   "404":
+	//     "$ref": "#/responses/Message"
+	//   "500":
+	//     "$ref": "#/responses/Message"
+
+	// Check if we have our ID
+	id := c.Param("id")
+	// Make int
+	itemID, err := strconv.ParseInt(id, 10, 64)
+	if err != nil {
+		return c.JSON(http.StatusBadRequest, models.Message{"Invalid ID."})
+	}
+
+	// Check if the user has the right to delete that namespace
+	user, err := models.GetCurrentUser(c)
+	if err != nil {
+		return c.JSON(http.StatusInternalServerError, models.Message{"An error occured."})
+	}
+
+	err = models.DeleteNamespaceByID(itemID, &user)
+	if err != nil {
+		if models.IsErrNeedToBeNamespaceOwner(err) {
+			return c.JSON(http.StatusForbidden, models.Message{"You need to be the namespace owner to delete a namespace."})
+		}
+
+		if models.IsErrNamespaceDoesNotExist(err) {
+			return c.JSON(http.StatusNotFound, models.Message{"This namespace does not exist."})
+		}
+
+		if models.IsErrUserNeedsToBeNamespaceAdmin(err) {
+			return c.JSON(http.StatusForbidden, models.Message{"You need to be namespace admin to delete a namespace."})
+		}
+
+		return c.JSON(http.StatusInternalServerError, models.Message{"An error occured."})
+	}
+
+	return c.JSON(http.StatusOK, models.Message{"The namespace was deleted with success."})
+}

routes/api/v1/namespace_show.go

@@ -55,9 +55,6 @@ func getNamespace(c echo.Context) (namespace models.Namespace, err error) {
 	// Get the namespace
 	namespace, err = models.GetNamespaceByID(namespaceID)
 	if err != nil {
-		if models.IsErrNamespaceDoesNotExist(err) {
-			return
-		}
 		return
 	}
 

routes/routes.go

@@ -97,7 +97,7 @@ func RegisterRoutes(e *echo.Echo) {
 	a.PUT("/namespaces", apiv1.AddNamespace)
 	a.GET("/namespaces/:id", apiv1.ShowNamespace)
 	a.POST("/namespaces/:id", apiv1.UpdateNamespace)
-	// a.DELETE("/namespaces/:id") // Deletes a namespace with all lists
+	a.DELETE("/namespaces/:id", apiv1.DeleteNamespaceByID)
 	a.GET("/namespaces/:id/lists", apiv1.GetListsByNamespaceID)
 	//a.PUT("/namespaces/:id/lists") // Creates a new list in that namespace
 }