Update new iterations form to match pajamas

ee/app/assets/javascripts/iterations/components/iteration_form_without_vue_router.vue

 <script>
-import { GlButton, GlForm, GlFormInput } from '@gitlab/ui';
-import initDatePicker from '~/behaviors/date_picker';
+import { GlButton, GlForm, GlFormGroup, GlFormInput, GlDatepicker } from '@gitlab/ui';
 import createFlash from '~/flash';
 import { visitUrl } from '~/lib/utils/url_utility';
 import { __ } from '~/locale';
 import MarkdownField from '~/vue_shared/components/markdown/field.vue';
+import { formatDate } from '~/lib/utils/datetime_utility';
 import createIteration from '../queries/create_iteration.mutation.graphql';
 import updateIteration from '../queries/update_iteration.mutation.graphql';
 
@@ -12,8 +12,10 @@ export default {
   components: {
     GlButton,
     GlForm,
+    GlFormGroup,
     GlFormInput,
     MarkdownField,
+    GlDatepicker,
   },
   props: {
     groupPath: {
@@ -49,6 +51,8 @@ export default {
       description: this.iteration.description ?? '',
       startDate: this.iteration.startDate,
       dueDate: this.iteration.dueDate,
+      isValidTitle: true,
+      isValidStartDate: true,
     };
   },
   computed: {
@@ -58,18 +62,39 @@ export default {
           groupPath: this.groupPath,
           title: this.title,
           description: this.description,
-          startDate: this.startDate,
-          dueDate: this.dueDate,
+          startDate: this.startDate ? formatDate(this.startDate, 'yyyy-mm-dd') : null,
+          dueDate: this.dueDate ? formatDate(this.dueDate, 'yyyy-mm-dd') : null,
         },
       };
     },
+    invalidFeedback() {
+      return __('This field is required.');
     },
-  mounted() {
-    // TODO: utilize GlDatepicker instead of relying on this jQuery behavior
-    initDatePicker();
   },
   methods: {
+    checkValidations() {
+      let isValid = true;
+
+      if (!this.title) {
+        this.isValidTitle = false;
+        isValid = false;
+      } else {
+        this.isValidTitle = true;
+      }
+
+      if (!this.startDate) {
+        this.isValidStartDate = false;
+        isValid = false;
+      } else {
+        this.isValidStartDate = true;
+      }
+      return isValid;
+    },
     save() {
+      if (!this.checkValidations()) {
+        return {};
+      }
+
       this.loading = true;
       return this.isEditing ? this.updateIteration() : this.createIteration();
     },
@@ -154,32 +179,31 @@ export default {
       </h3>
     </div>
     <hr class="gl-mt-0" />
-    <gl-form class="row common-note-form">
+    <gl-form class="row common-note-form" novalidate>
       <div class="col-md-6">
-        <div class="form-group row">
-          <div class="col-form-label col-sm-2">
-            <label for="iteration-title">{{ __('Title') }}</label>
-          </div>
-          <div class="col-sm-10">
+        <gl-form-group
+          :label="__('Title')"
+          class="gl-flex-grow-1"
+          label-for="iteration-title"
+          :state="isValidTitle"
+          :invalid-feedback="invalidFeedback"
+        >
           <gl-form-input
             id="iteration-title"
             v-model="title"
             autocomplete="off"
             data-qa-selector="iteration_title_field"
+            :state="isValidTitle"
+            required
           />
-          </div>
-        </div>
+        </gl-form-group>
 
-        <div class="form-group row">
-          <div class="col-form-label col-sm-2">
-            <label for="iteration-description">{{ __('Description') }}</label>
-          </div>
-          <div class="col-sm-10">
+        <gl-form-group :label="__('Description')" label-for="iteration-description">
           <markdown-field
             :markdown-preview-path="previewMarkdownPath"
             :can-attach-file="false"
             :enable-autocomplete="true"
-              label="Description"
+            label="__('Description')"
             :textarea-value="description"
             markdown-docs-path="/help/user/markdown"
             :add-spacing-classes="false"
@@ -198,49 +222,46 @@ export default {
               </textarea>
             </template>
           </markdown-field>
-          </div>
-        </div>
+        </gl-form-group>
       </div>
 
       <div class="col-md-6">
-        <div class="form-group row">
-          <div class="col-form-label col-sm-2">
-            <label for="iteration-start-date">{{ __('Start date') }}</label>
-          </div>
-          <div class="col-sm-10">
-            <gl-form-input
+        <gl-form-group
+          :label="__('Start date')"
+          :state="isValidStartDate"
+          :invalid-feedback="invalidFeedback"
+        >
+          <div class="gl-display-inline-block gl-mr-2">
+            <gl-datepicker
               id="iteration-start-date"
               v-model="startDate"
-              class="datepicker form-control"
-              :placeholder="__('Select start date')"
-              autocomplete="off"
-              data-qa-selector="iteration_start_date_field"
-              @change="updateStartDate"
-            />
-            <a class="inline float-right gl-mt-2 js-clear-start-date" href="#">{{
-              __('Clear start date')
-            }}</a>
-          </div>
-        </div>
-        <div class="form-group row">
-          <div class="col-form-label col-sm-2">
-            <label for="iteration-due-date">{{ __('Due date') }}</label>
-          </div>
-          <div class="col-sm-10">
-            <gl-form-input
-              id="iteration-due-date"
-              v-model="dueDate"
-              class="datepicker form-control"
-              :placeholder="__('Select due date')"
-              autocomplete="off"
-              data-qa-selector="iteration_due_date_field"
-              @change="updateDueDate"
+              :state="isValidStartDate"
+              required
             />
-            <a class="inline float-right gl-mt-2 js-clear-due-date" href="#">{{
-              __('Clear due date')
-            }}</a>
           </div>
+          <gl-button
+            v-show="startDate"
+            variant="link"
+            class="gl-white-space-nowrap"
+            @click="updateStartDate(null)"
+          >
+            {{ __('Clear start date') }}
+          </gl-button>
+        </gl-form-group>
+
+        <gl-form-group :label="__('Due date')">
+          <div class="gl-display-inline-block gl-mr-2">
+            <gl-datepicker id="iteration-due-date" v-model="dueDate" />
           </div>
+          <gl-button
+            v-show="dueDate"
+            variant="link"
+            class="gl-white-space-nowrap"
+            @click="updateDueDate(null)"
+          >
+            {{ __('Clear due date') }}
+          </gl-button>
+        </gl-form-group>
       </div>
     </gl-form>
 

ee/spec/frontend/iterations/components/iteration_form_without_vue_router_spec.js

@@ -19,8 +19,8 @@ describe('Iteration Form', () => {
     id: `gid://gitlab/Iteration/${id}`,
     title: 'An iteration',
     description: 'The words',
-    startDate: '2020-06-28',
-    dueDate: '2020-07-05',
+    startDate: new Date('2020-06-28'),
+    dueDate: new Date('2020-07-05'),
   };
 
   const createMutationSuccess = { data: { createIteration: { iteration, errors: [] } } };
@@ -88,8 +88,11 @@ describe('Iteration Form', () => {
 
         findTitle().vm.$emit('input', title);
         findDescription().setValue(description);
-        findStartDate().vm.$emit('input', startDate);
-        findDueDate().vm.$emit('input', dueDate);
+        findStartDate().vm.$emit('input', startDate ? new Date(startDate) : null);
+        findDueDate().vm.$emit('input', dueDate ? new Date(dueDate) : null);
+
+        findTitle().trigger('change');
+        findStartDate().trigger('change');
 
         clickSave();
 
@@ -110,6 +113,19 @@ describe('Iteration Form', () => {
       it('redirects to Iteration page on success', async () => {
         createComponent();
 
+        const title = 'Iteration 5';
+        const description = 'The fifth iteration';
+        const startDate = '2020-05-05';
+        const dueDate = '2020-05-25';
+
+        findTitle().vm.$emit('input', title);
+        findDescription().setValue(description);
+        findStartDate().vm.$emit('input', startDate ? new Date(startDate) : null);
+        findDueDate().vm.$emit('input', dueDate ? new Date(dueDate) : null);
+
+        findTitle().trigger('change');
+        findStartDate().trigger('change');
+
         clickSave();
 
         await nextTick();
@@ -117,6 +133,20 @@ describe('Iteration Form', () => {
         expect(visitUrl).toHaveBeenCalled();
       });
 
+      it('validates required fields and sets isValid state to false', async () => {
+        createComponent();
+
+        clickSave();
+
+        await nextTick();
+
+        expect(findSaveButton().props('loading')).toBe(false);
+        expect(wrapper.vm.checkValidations()).toBe(false);
+        expect(wrapper.vm.isValidTitle).toBe(false);
+        expect(wrapper.vm.isValidStartDate).toBe(false);
+        expect(visitUrl).not.toHaveBeenCalled();
+      });
+
       it('loading=false on error', () => {
         createComponent({ mutationResult: createMutationFailure });
 
@@ -149,10 +179,13 @@ describe('Iteration Form', () => {
         props: propsWithIteration,
       });
 
+      const startDate = new Date(findStartDate().attributes('value'));
+      const dueDate = new Date(findDueDate().attributes('value'));
+
       expect(findTitle().attributes('value')).toBe(iteration.title);
       expect(findDescription().element.value).toBe(iteration.description);
-      expect(findStartDate().attributes('value')).toBe(iteration.startDate);
-      expect(findDueDate().attributes('value')).toBe(iteration.dueDate);
+      expect(startDate).toEqual(iteration.startDate);
+      expect(dueDate).toEqual(iteration.dueDate);
     });
 
     it('shows update text on submit button', () => {
@@ -175,8 +208,8 @@ describe('Iteration Form', () => {
 
       findTitle().vm.$emit('input', title);
       findDescription().setValue(description);
-      findStartDate().vm.$emit('input', startDate);
-      findDueDate().vm.$emit('input', dueDate);
+      findStartDate().vm.$emit('input', startDate ? new Date(startDate) : null);
+      findDueDate().vm.$emit('input', dueDate ? new Date(dueDate) : null);
 
       clickSave();
 
@@ -220,6 +253,27 @@ describe('Iteration Form', () => {
       expect(wrapper.emitted('updated')).toBeUndefined();
     });
 
+    it('validates required fields and sets isValid state to false', async () => {
+      createComponent({
+        props: propsWithIteration,
+      });
+
+      findTitle().vm.$emit('input', '');
+      findStartDate().vm.$emit('input', null);
+      findTitle().trigger('change');
+      findStartDate().trigger('change');
+
+      clickSave();
+
+      await nextTick();
+
+      expect(findSaveButton().props('loading')).toBe(false);
+      expect(wrapper.vm.checkValidations()).toBe(false);
+      expect(wrapper.vm.isValidTitle).toBe(false);
+      expect(wrapper.vm.isValidStartDate).toBe(false);
+      expect(visitUrl).not.toHaveBeenCalled();
+    });
+
     it('emits cancel when cancel clicked', async () => {
       createComponent({
         props: propsWithIteration,