Tables loading

kolibri/core/assets/src/views/CoreTable.vue

@@ -84,7 +84,7 @@
       });
 
       // If we have loaded the data, but have no empty message and no rows, we log an error.
-      if (!this.dataLoading && this.emptyMessage && !tableHasRows) {
+      if (!this.dataLoading && !this.emptyMessage && !tableHasRows) {
         logging.error('CoreTable: No rows in table, but no empty message provided.');
       }
 
@@ -93,7 +93,7 @@
        * empty message if there are no rows in the table. If we have loaded data, have
        * an emptyMessage and have no rows. If we have rows, then we show the table alone
        */
-      var dataStatusEl = this.dataLoading
+      const dataStatusEl = this.dataLoading
         ? createElement('p', [createElement(KCircularLoader)])
         : !tableHasRows && createElement('p', this.emptyMessage); // Only show message if no rows
 

kolibri/plugins/coach/assets/src/composables/__mocks__/useGroups.js

@@ -0,0 +1,46 @@
+/**
+ * `useGroups` composable function mock.
+ *
+ * If default values are sufficient for tests,
+ * you only need call `jest.mock('<useGroups file path>')`
+ * at the top of a test file.
+ *
+ * If you need to override some default values from some tests,
+ * you can import a helper function `useGroupsMock` that accepts
+ * an object with values to be overriden and use it together
+ * with  `mockImplementation` as follows:
+ *
+ * ```
+ * // eslint-disable-next-line import/named
+ * import useGroups, { useGroupsMock } from '<useGroups file path>';
+ *
+ * jest.mock('<useGroups file path>')
+ *
+ * it('test', () => {
+ *   useGroups.mockImplementation(
+ *     () => useGroupsMock({ groupsAreLoading: true })
+ *   );
+ * })
+ * ```
+ *
+ * You can reset your mock implementation back to default values
+ * for other tests by calling the following in `beforeEach`:
+ *
+ * ```
+ * useGroups.mockImplementation(() => useGroupsMock())
+ * ```
+ */
+
+const MOCK_DEFAULTS = {
+  groupsAreLoading: false,
+  showGroupsPage: jest.fn(),
+};
+
+export function useGroupsMock(overrides = {}) {
+  return {
+    ...MOCK_DEFAULTS,
+    ...overrides,
+  };
+}
+
+export default jest.fn(() => useGroupsMock());

kolibri/plugins/coach/assets/src/composables/__mocks__/useLessons.js

@@ -0,0 +1,46 @@
+/**
+ * `useLessons` composable function mock.
+ *
+ * If default values are sufficient for tests,
+ * you only need call `jest.mock('<useLessons file path>')`
+ * at the top of a test file.
+ *
+ * If you need to override some default values from some tests,
+ * you can import a helper function `useLessonsMock` that accepts
+ * an object with values to be overriden and use it together
+ * with  `mockImplementation` as follows:
+ *
+ * ```
+ * // eslint-disable-next-line import/named
+ * import useLessons, { useLessonsMock } from '<useLessons file path>';
+ *
+ * jest.mock('<useLessons file path>')
+ *
+ * it('test', () => {
+ *   useLessons.mockImplementation(
+ *     () => useLessonsMock({ lessonsAreLoading: true })
+ *   );
+ * })
+ * ```
+ *
+ * You can reset your mock implementation back to default values
+ * for other tests by calling the following in `beforeEach`:
+ *
+ * ```
+ * useLessons.mockImplementation(() => useLessonsMock())
+ * ```
+ */
+
+const MOCK_DEFAULTS = {
+  lessonsAreLoading: false,
+  showLessonsRootPage: jest.fn(),
+};
+
+export function useLessonsMock(overrides = {}) {
+  return {
+    ...MOCK_DEFAULTS,
+    ...overrides,
+  };
+}
+
+export default jest.fn(() => useLessonsMock());

kolibri/plugins/coach/assets/src/composables/useGroups.js

@@ -0,0 +1,71 @@
+import { ref } from 'kolibri.lib.vueCompositionApi';
+import samePageCheckGenerator from 'kolibri.utils.samePageCheckGenerator';
+import { LearnerGroupResource, FacilityUserResource } from 'kolibri.resources';
+
+// Place outside the function to keep the state
+const groupsAreLoading = ref(false);
+
+export function useGroups() {
+  function setGroupsLoading(loading) {
+    groupsAreLoading.value = loading;
+  }
+
+  function showGroupsPage(store, classId) {
+    // On this page, handle loading state locally
+    // TODO: Open follow-up so that we don't need to do this
+    store.dispatch('notLoading');
+
+    setGroupsLoading(true);
+
+    const promises = [
+      FacilityUserResource.fetchCollection({
+        getParams: { member_of: classId },
+        force: true,
+      }),
+      LearnerGroupResource.fetchCollection({
+        getParams: { parent: classId },
+        force: true,
+      }),
+    ];
+    const shouldResolve = samePageCheckGenerator(store);
+    return Promise.all(promises).then(
+      ([classUsers, groupsCollection]) => {
+        if (shouldResolve()) {
+          const groups = groupsCollection.map(group => ({ ...group, users: [] }));
+          const groupUsersPromises = groups.map(group =>
+            FacilityUserResource.fetchCollection({
+              getParams: { member_of: group.id },
+              force: true,
+            })
+          );
+
+          Promise.all(groupUsersPromises).then(
+            groupsUsersCollection => {
+              if (shouldResolve()) {
+                groupsUsersCollection.forEach((groupUsers, index) => {
+                  groups[index].users = [...groupUsers];
+                });
+                store.commit('groups/SET_STATE', {
+                  classUsers: [...classUsers],
+                  groups,
+                  groupModalShown: false,
+                });
+                setGroupsLoading(false);
+                store.dispatch('clearError');
+              }
+            },
+            error => (shouldResolve() ? store.dispatch('handleError', error) : null)
+          );
+        }
+      },
+      error => {
+        shouldResolve() ? store.dispatch('handleError', error) : null;
+      }
+    );
+  }
+
+  return {
+    groupsAreLoading,
+    showGroupsPage,
+  };
+}

kolibri/plugins/coach/assets/src/composables/useLessons.js

@@ -0,0 +1,46 @@
+import { ref } from 'kolibri.lib.vueCompositionApi';
+import { LearnerGroupResource } from 'kolibri.resources';
+import { LessonsPageNames } from '../constants/lessonsConstants';
+
+// Place outside the function to keep the state
+const lessonsAreLoading = ref(false);
+
+export function useLessons() {
+  function setLessonsLoading(loading) {
+    lessonsAreLoading.value = loading;
+  }
+
+  // Show the Lessons Root Page, where all the Lessons are listed for a given Classroom
+  function showLessonsRootPage(store, classId) {
+    // on this page, don't handle loading state globally so we can do it locally
+    store.dispatch('notLoading');
+
+    setLessonsLoading(true);
+    store.commit('lessonsRoot/SET_STATE', {
+      lessons: [],
+      learnerGroups: [],
+    });
+    const loadRequirements = [
+      // Fetch learner groups for the New Lesson Modal
+      LearnerGroupResource.fetchCollection({ getParams: { parent: classId } }),
+      store.dispatch('lessonsRoot/refreshClassLessons', classId),
+    ];
+
+    return Promise.all(loadRequirements).then(
+      ([learnerGroups]) => {
+        store.commit('lessonsRoot/SET_LEARNER_GROUPS', learnerGroups);
+        store.commit('SET_PAGE_NAME', LessonsPageNames.PLAN_LESSONS_ROOT);
+        setLessonsLoading(false);
+      },
+      error => {
+        store.dispatch('handleApiError', error);
+        setLessonsLoading(false);
+      }
+    );
+  }
+
+  return {
+    lessonsAreLoading,
+    showLessonsRootPage,
+  };
+}

kolibri/plugins/coach/assets/src/routes/planLessonsRoutes.js

@@ -8,10 +8,11 @@ import {
   showLessonResourceBookmarks,
   showLessonResourceBookmarksMain,
 } from '../modules/lessonResources/handlers';
-import { showLessonsRootPage } from '../modules/lessonsRoot/handlers';
 import { showLessonSummaryPage } from '../modules/lessonSummary/handlers';
 import { LessonsPageNames } from '../constants/lessonsConstants';
 
+import { useLessons } from '../composables/useLessons';
+
 import LessonsRootPage from '../views/plan/LessonsRootPage';
 import LessonSummaryPage from '../views/plan/LessonSummaryPage';
 import LessonResourceSelectionPage from '../views/plan/LessonResourceSelectionPage';
@@ -31,6 +32,8 @@ function path(...args) {
   return args.join('');
 }
 
+const { showLessonsRootPage } = useLessons();
+
 export default [
   {
     name: LessonsPageNames.PLAN_LESSONS_ROOT,

kolibri/plugins/coach/assets/src/routes/planRoutes.js

@@ -1,12 +1,14 @@
 import store from 'kolibri.coreVue.vuex.store';
 import { PageNames } from '../constants';
+import { useGroups } from '../composables/useGroups';
 import GroupsPage from '../views/plan/GroupsPage';
 import GroupMembersPage from '../views/plan/GroupMembersPage';
 import GroupEnrollPage from '../views/plan/GroupEnrollPage';
-import { showGroupsPage } from '../modules/groups/handlers';
 import planLessonsRoutes from './planLessonsRoutes';
 import planExamRoutes from './planExamRoutes';
 
+const { showGroupsPage } = useGroups();
+
 export default [
   ...planLessonsRoutes,
   ...planExamRoutes,

kolibri/plugins/coach/assets/src/views/plan/GroupsPage/index.vue

@@ -19,7 +19,10 @@
           />
         </div>
 
-        <CoreTable>
+        <CoreTable
+          :dataLoading="groupsAreLoading"
+          :emptyMessage="$tr('noGroups')"
+        >
           <template #headers>
             <th>{{ coachString('nameLabel') }}</th>
             <th>{{ coreString('learnersLabel') }}</th>
@@ -38,10 +41,6 @@
           </template>
         </CoreTable>
 
-        <p v-if="!sortedGroups.length">
-          {{ $tr('noGroups') }}
-        </p>
-
         <CreateGroupModal
           v-if="showCreateGroupModal"
           :groups="sortedGroups"
@@ -79,6 +78,7 @@
   import CoreTable from 'kolibri.coreVue.components.CoreTable';
   import commonCoreStrings from 'kolibri.coreVue.mixins.commonCoreStrings';
   import commonCoach from '../../common';
+  import { useGroups } from '../../../composables/useGroups';
   import CoachAppBarPage from '../../CoachAppBarPage';
   import PlanHeader from '../../plan/PlanHeader';
   import { GroupModals } from '../../../constants';
@@ -101,6 +101,7 @@
     },
     mixins: [commonCoach, commonCoreStrings],
     setup() {
+      const { groupsAreLoading } = useGroups();
       const selectedGroup = ref({
         name: '',
         id: '',
@@ -113,6 +114,7 @@
         setSelectedGroup(name, id) {
           selectedGroup.value = { name, id };
         },
+        groupsAreLoading,
       };
     },
     computed: {