Store subtasks in task

src/components/Task.vue

@@ -105,7 +105,7 @@ License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 							@keyup.27="showSubtaskInput = false">
 					</form>
 				</li>
-				<task-body-component v-for="subtask in subTasks(task)"
+				<task-body-component v-for="subtask in task.subTasks"
 					:key="subtask.uid"
 					:task="subtask" :base-url="baseUrl"
 					class="subtask" />
@@ -119,7 +119,7 @@ License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 <script>
 import { overdue, valid } from '../store/storeHelper'
 import clickOutside from 'vue-click-outside'
-import { mapActions, mapGetters } from 'vuex'
+import { mapActions } from 'vuex'
 
 export default {
 	name: 'TaskBodyComponent',
@@ -160,7 +160,7 @@ export default {
 			isAddingTask: false
 		}
 	},
-	computed: Object.assign({
+	computed: {
 		iconStar: function() {
 			if (this.task.priority > 5) {
 				return 'icon-task-star-low'
@@ -169,11 +169,8 @@ export default {
 			} else if (this.task.priority > 0 && this.task.priority < 5) {
 				return 'icon-task-star-high'
 			}
-		} },
-	mapGetters({
-		subTasks: 'getTasksByParent'
-	})
-	),
+		}
+	},
 	methods: Object.assign(
 		mapActions([
 			'toggleCompleted',

src/models/task.js

@@ -50,6 +50,8 @@ export default class Task {
 		this.calendar = calendar
 		this.vCalendar = new ICAL.Component(this.jCal)
 
+		this.subTasks = {}
+
 		// used to state a task is not up to date with
 		// the server and cannot be pushed (etag)
 		this.conflict = false

src/store/calendars.js

@@ -454,6 +454,17 @@ const actions = {
 					Vue.set(task, 'dav', item)
 					return task
 				})
+
+				// Initialize subtasks so we don't have to search for them on every change.
+				// We do have to manually adjust this list when a task is added, deleted or moved.
+				tasks.forEach(
+					parent => {
+						parent.subTasks = tasks.filter(task => {
+							return task.related === parent.uid
+						})
+					}
+				)
+
 				context.commit('appendTasksToCalendar', { calendar, tasks })
 				context.commit('appendTasks', tasks)
 				return tasks