Add moving tasks between lists (#389)

Fix misspell

Add moving tasks between lists

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: vikunja/api#389

pkg/integrations/task_test.go

@@ -269,6 +269,24 @@ func TestTask(t *testing.T) {
 				assert.Contains(t, rec.Body.String(), `"text":"Lorem Ipsum"`)
 			})
 		})
+		t.Run("Move to other list", func(t *testing.T) {
+			t.Run("normal", func(t *testing.T) {
+				rec, err := testHandler.testUpdateWithUser(nil, map[string]string{"listtask": "1"}, `{"list_id":7}`)
+				assert.NoError(t, err)
+				assert.Contains(t, rec.Body.String(), `"list_id":7`)
+				assert.NotContains(t, rec.Body.String(), `"list_id":1`)
+			})
+			t.Run("Forbidden", func(t *testing.T) {
+				_, err := testHandler.testUpdateWithUser(nil, map[string]string{"listtask": "1"}, `{"list_id":20}`)
+				assert.Error(t, err)
+				assertHandlerErrorCode(t, err, models.ErrorCodeGenericForbidden)
+			})
+			t.Run("Read Only", func(t *testing.T) {
+				_, err := testHandler.testUpdateWithUser(nil, map[string]string{"listtask": "1"}, `{"list_id":6}`)
+				assert.Error(t, err)
+				assertHandlerErrorCode(t, err, models.ErrorCodeGenericForbidden)
+			})
+		})
 	})
 	t.Run("Delete", func(t *testing.T) {
 		t.Run("Normal", func(t *testing.T) {

pkg/models/tasks.go

@@ -649,7 +649,9 @@ func (t *Task) Update() (err error) {
 			"end_date_unix",
 			"hex_color",
 			"done_at_unix",
-			"percent_done").
+			"percent_done",
+			"list_id",
+		).
 		Update(ot)
 	*t = ot
 	if err != nil {

pkg/models/tasks_rights.go

@@ -59,12 +59,24 @@ func (t *Task) CanWrite(a web.Auth) (canWrite bool, err error) {
 // Helper function to check if a user can do stuff on a list task
 func (t *Task) canDoTask(a web.Auth) (bool, error) {
 	// Get the task
-	lI, err := GetTaskByIDSimple(t.ID)
+	ot, err := GetTaskByIDSimple(t.ID)
 	if err != nil {
 		return false, err
 	}
 
+	// Check if we're moving the task into a different list to check if the user has sufficient rights for that on the new list
+	if t.ListID != 0 && t.ListID != ot.ListID {
+		newList := &List{ID: t.ListID}
+		can, err := newList.CanWrite(a)
+		if err != nil {
+			return false, err
+		}
+		if !can {
+			return false, ErrGenericForbidden{}
+		}
+	}
+
 	// A user can do a task if it has write acces to its list
-	l := &List{ID: lI.ListID}
+	l := &List{ID: ot.ListID}
 	return l.CanWrite(a)
 }