Put reminders in an extra table (#75)

pkg/migration/20190524205441.go

@@ -0,0 +1,70 @@
+//  Vikunja is a todo-list application to facilitate your life.
+//  Copyright 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 migration
+
+import (
+	"github.com/go-xorm/xorm"
+	"src.techknowlogick.com/xormigrate"
+)
+
+type taskReminder20190524205441 struct {
+	ID           int64 `xorm:"int(11) autoincr not null unique pk"`
+	TaskID       int64 `xorm:"int(11) not null INDEX"`
+	ReminderUnix int64 `xorm:"int(11) not null INDEX"`
+	Created      int64 `xorm:"created not null"`
+}
+
+// TableName returns a pretty table name
+func (taskReminder20190524205441) TableName() string {
+	return "task_reminders"
+}
+
+func init() {
+	migrations = append(migrations, &xormigrate.Migration{
+		ID:          "20190524205441",
+		Description: "Add extra table for reminders",
+		Migrate: func(tx *xorm.Engine) error {
+			err := tx.Sync2(taskReminder20190524205441{})
+			if err != nil {
+				return err
+			}
+
+			// get all current reminders and put them into the new table
+			var allTasks []*listTask20190511202210
+			err = tx.Find(&allTasks)
+			if err != nil {
+				return err
+			}
+
+			reminders := []*taskReminder20190524205441{}
+			for _, t := range allTasks {
+				for _, reminder := range t.RemindersUnix {
+					reminders = append(reminders, &taskReminder20190524205441{TaskID: t.ID, ReminderUnix: reminder})
+				}
+			}
+			_, err = tx.Insert(reminders)
+			if err != nil {
+				return err
+			}
+
+			return dropTableColum(tx, "tasks", "reminders_unix")
+		},
+		Rollback: func(tx *xorm.Engine) error {
+			return tx.DropTables(taskReminder20190524205441{})
+		},
+	})
+}