243 lines
7 KiB
Go
243 lines
7 KiB
Go
// Vikunja is a to-do list application to facilitate your life.
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// Copyright 2018-2021 Vikunja and contributors. All rights reserved.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public Licensee as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public Licensee for more details.
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//
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// You should have received a copy of the GNU Affero General Public Licensee
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package migration
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import (
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"bytes"
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"io/ioutil"
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"xorm.io/xorm"
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"code.vikunja.io/api/pkg/db"
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"code.vikunja.io/api/pkg/files"
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"code.vikunja.io/api/pkg/log"
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"code.vikunja.io/api/pkg/models"
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"code.vikunja.io/api/pkg/user"
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)
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// InsertFromStructure takes a fully nested Vikunja data structure and a user and then creates everything for this user
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// (Namespaces, tasks, etc. Even attachments and relations.)
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func InsertFromStructure(str []*models.NamespaceWithLists, user *user.User) (err error) {
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s := db.NewSession()
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defer s.Close()
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err = insertFromStructure(s, str, user)
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if err != nil {
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log.Errorf("[creating structure] Error while creating structure: %s", err.Error())
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_ = s.Rollback()
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return err
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}
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return s.Commit()
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}
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func insertFromStructure(s *xorm.Session, str []*models.NamespaceWithLists, user *user.User) (err error) {
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log.Debugf("[creating structure] Creating %d namespaces", len(str))
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labels := make(map[string]*models.Label)
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// Create all namespaces
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for _, n := range str {
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err = n.Create(s, user)
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if err != nil {
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return
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}
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log.Debugf("[creating structure] Created namespace %d", n.ID)
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log.Debugf("[creating structure] Creating %d lists", len(n.Lists))
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// Create all lists
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for _, l := range n.Lists {
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// The tasks and bucket slices are going to be reset during the creation of the list so we rescue it here
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// to be able to still loop over them aftere the list was created.
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tasks := l.Tasks
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originalBuckets := l.Buckets
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originalBackgroundInformation := l.BackgroundInformation
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needsDefaultBucket := false
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l.NamespaceID = n.ID
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err = l.Create(s, user)
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if err != nil {
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return
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}
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log.Debugf("[creating structure] Created list %d", l.ID)
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backgroundFile, is := originalBackgroundInformation.(*bytes.Buffer)
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if is {
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log.Debugf("[creating structure] Creating a background file for list %d", l.ID)
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file, err := files.Create(backgroundFile, "", uint64(backgroundFile.Len()), user)
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if err != nil {
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return err
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}
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err = models.SetListBackground(s, l.ID, file)
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if err != nil {
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return err
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}
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log.Debugf("[creating structure] Created a background file as new file %d for list %d", file.ID, l.ID)
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}
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// Create all buckets
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buckets := make(map[int64]*models.Bucket) // old bucket id is the key
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if len(l.Buckets) > 0 {
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log.Debugf("[creating structure] Creating %d buckets", len(l.Buckets))
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}
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for _, bucket := range originalBuckets {
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oldID := bucket.ID
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bucket.ID = 0 // We want a new id
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bucket.ListID = l.ID
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err = bucket.Create(s, user)
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if err != nil {
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return
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}
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buckets[oldID] = bucket
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log.Debugf("[creating structure] Created bucket %d, old ID was %d", bucket.ID, oldID)
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}
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log.Debugf("[creating structure] Creating %d tasks", len(tasks))
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// Create all tasks
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for _, t := range tasks {
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bucket, exists := buckets[t.BucketID]
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if exists {
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t.BucketID = bucket.ID
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} else if t.BucketID > 0 {
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log.Debugf("[creating structure] No bucket created for original bucket id %d", t.BucketID)
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t.BucketID = 0
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}
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if !exists || t.BucketID == 0 {
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needsDefaultBucket = true
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}
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t.ListID = l.ID
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err = t.Create(s, user)
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if err != nil {
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return
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}
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log.Debugf("[creating structure] Created task %d", t.ID)
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if len(t.RelatedTasks) > 0 {
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log.Debugf("[creating structure] Creating %d related task kinds", len(t.RelatedTasks))
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}
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// Create all relation for each task
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for kind, tasks := range t.RelatedTasks {
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if len(tasks) > 0 {
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log.Debugf("[creating structure] Creating %d related tasks for kind %v", len(tasks), kind)
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}
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for _, rt := range tasks {
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// First create the related tasks if they do not exist
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if rt.ID == 0 {
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rt.ListID = t.ListID
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err = rt.Create(s, user)
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if err != nil {
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return
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}
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log.Debugf("[creating structure] Created related task %d", rt.ID)
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}
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// Then create the relation
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taskRel := &models.TaskRelation{
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TaskID: t.ID,
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OtherTaskID: rt.ID,
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RelationKind: kind,
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}
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err = taskRel.Create(s, user)
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if err != nil {
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return
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}
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log.Debugf("[creating structure] Created task relation between task %d and %d", t.ID, rt.ID)
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}
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}
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// Create all attachments for each task
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if len(t.Attachments) > 0 {
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log.Debugf("[creating structure] Creating %d attachments", len(t.Attachments))
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}
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for _, a := range t.Attachments {
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// Check if we have a file to create
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if len(a.File.FileContent) > 0 {
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a.TaskID = t.ID
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fr := ioutil.NopCloser(bytes.NewReader(a.File.FileContent))
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err = a.NewAttachment(s, fr, a.File.Name, a.File.Size, user)
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if err != nil {
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return
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}
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log.Debugf("[creating structure] Created new attachment %d", a.ID)
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}
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}
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// Create all labels
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for _, label := range t.Labels {
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// Check if we already have a label with that name + color combination and use it
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// If not, create one and save it for later
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var lb *models.Label
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var exists bool
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lb, exists = labels[label.Title+label.HexColor]
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if !exists {
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err = label.Create(s, user)
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if err != nil {
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return err
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}
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log.Debugf("[creating structure] Created new label %d", label.ID)
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labels[label.Title+label.HexColor] = label
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lb = label
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}
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lt := &models.LabelTask{
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LabelID: lb.ID,
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TaskID: t.ID,
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}
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err = lt.Create(s, user)
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if err != nil {
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return err
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}
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log.Debugf("[creating structure] Associated task %d with label %d", t.ID, lb.ID)
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}
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}
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// All tasks brought their own bucket with them, therefore the newly created default bucket is just extra space
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if !needsDefaultBucket {
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b := &models.Bucket{ListID: l.ID}
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bucketsIn, _, _, err := b.ReadAll(s, user, "", 1, 1)
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if err != nil {
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return err
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}
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buckets := bucketsIn.([]*models.Bucket)
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err = buckets[0].Delete(s, user)
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if err != nil && !models.IsErrCannotRemoveLastBucket(err) {
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return err
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}
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}
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l.Tasks = tasks
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l.Buckets = originalBuckets
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}
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}
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log.Debugf("[creating structure] Done inserting new task structure")
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return nil
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}
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