Add bucket position property

pkg/migration/20210727211037.go

@@ -0,0 +1,67 @@
+// Vikunja is a to-do list application to facilitate your life.
+// Copyright 2018-2021 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 Affero General Public Licensee 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 Affero General Public Licensee for more details.
+//
+// You should have received a copy of the GNU Affero General Public Licensee
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package migration
+
+import (
+	"math"
+	"src.techknowlogick.com/xormigrate"
+	"xorm.io/xorm"
+)
+
+type buckets20210727211037 struct {
+	ID       int64   `xorm:"bigint autoincr not null unique pk" json:"id" param:"list"`
+	Position float64 `xorm:"double null" json:"position"`
+}
+
+func (buckets20210727211037) TableName() string {
+	return "buckets"
+}
+
+func init() {
+	migrations = append(migrations, &xormigrate.Migration{
+		ID:          "20210727211037",
+		Description: "Add bucket position property",
+		Migrate: func(tx *xorm.Engine) error {
+			err := tx.Sync2(buckets20210727211037{})
+			if err != nil {
+				return err
+			}
+
+			buckets := []*buckets20210727211037{}
+			err = tx.Find(&buckets)
+			if err != nil {
+				return err
+			}
+
+			for _, bucket := range buckets {
+				bucket.Position = float64(bucket.ID) * math.Pow(2, 16)
+
+				_, err = tx.
+					Where("id = ?", bucket.ID).
+					Update(bucket)
+				if err != nil {
+					return err
+				}
+			}
+
+			return nil
+		},
+		Rollback: func(tx *xorm.Engine) error {
+			return nil
+		},
+	})
+}

pkg/models/kanban.go

@@ -41,6 +41,9 @@ type Bucket struct {
 	// If this bucket is the "done bucket". All tasks moved into this bucket will automatically marked as done. All tasks marked as done from elsewhere will be moved into this bucket.
 	IsDoneBucket bool `xorm:"BOOL" json:"is_done_bucket"`
 
+	// The position this bucket has when querying all buckets. See the tasks.position property on how to use this.
+	Position float64 `xorm:"double null" json:"position"`
+
 	// A timestamp when this bucket was created. You cannot change this value.
 	Created time.Time `xorm:"created not null" json:"created"`
 	// A timestamp when this bucket was last updated. You cannot change this value.