Revert "Increased page size to 100"

This reverts commit 2869a61f3b7aeb8b6d79c74332c93e32cec20caa.

app/assets/javascripts/ide/stores/modules/file_templates/actions.js

@@ -23,22 +23,27 @@ export const receiveTemplateTypesError = ({ commit, dispatch }) => {
 export const receiveTemplateTypesSuccess = ({ commit }, templates) =>
   commit(types.RECEIVE_TEMPLATE_TYPES_SUCCESS, templates);
 
-export const fetchTemplateTypes = ({ dispatch, state, rootState }, page = 1) => {
+export const fetchTemplateTypes = ({ dispatch, state, rootState }) => {
   if (!Object.keys(state.selectedTemplateType).length) return Promise.reject();
 
   dispatch('requestTemplateTypes');
 
-  return Api.projectTemplates(rootState.currentProjectId, state.selectedTemplateType.key, { page })
+  const fetchPages = (page = 1, prev = []) =>
+    Api.projectTemplates(rootState.currentProjectId, state.selectedTemplateType.key, {
+      page,
+      per_page: 100,
+    })
       .then(({ data, headers }) => {
         const nextPage = parseInt(normalizeHeaders(headers)['X-NEXT-PAGE'], 10);
+        const nextData = prev.concat(data);
 
-      dispatch('receiveTemplateTypesSuccess', data);
+        dispatch('receiveTemplateTypesSuccess', nextData);
 
-      if (nextPage) {
-        dispatch('fetchTemplateTypes', nextPage);
-      }
+        return nextPage ? fetchPages(nextPage, nextData) : nextData;
       })
       .catch(() => dispatch('receiveTemplateTypesError'));
+
+  return fetchPages();
 };
 
 export const setSelectedTemplateType = ({ commit, dispatch, rootGetters }, type) => {

app/assets/javascripts/ide/stores/modules/file_templates/mutations.js

@@ -3,13 +3,14 @@ import * as types from './mutation_types';
 export default {
   [types.REQUEST_TEMPLATE_TYPES](state) {
     state.isLoading = true;
+    state.templates = [];
   },
   [types.RECEIVE_TEMPLATE_TYPES_ERROR](state) {
     state.isLoading = false;
   },
   [types.RECEIVE_TEMPLATE_TYPES_SUCCESS](state, templates) {
     state.isLoading = false;
-    state.templates = state.templates.concat(templates);
+    state.templates = templates;
   },
   [types.SET_SELECTED_TEMPLATE_TYPE](state, type) {
     state.selectedTemplateType = type;

changelogs/unreleased/58252-web-ide-dropdown-duplicates.yml

+---
+title: Resolve Web IDE template dropdown showing duplicates
+merge_request: 27237
+author:
+type: fixed

spec/frontend/ide/stores/modules/file_templates/mutations_spec.js

@@ -2,6 +2,9 @@ import createState from '~/ide/stores/modules/file_templates/state';
 import * as types from '~/ide/stores/modules/file_templates/mutation_types';
 import mutations from '~/ide/stores/modules/file_templates/mutations';
 
+const mockFileTemplates = [['MIT'], ['CC']];
+const mockTemplateType = 'test';
+
 describe('IDE file templates mutations', () => {
   let state;
 
@@ -10,11 +13,21 @@ describe('IDE file templates mutations', () => {
   });
 
   describe(`${types.REQUEST_TEMPLATE_TYPES}`, () => {
-    it('sets isLoading', () => {
+    it('sets loading to true', () => {
+      state.isLoading = false;
+
       mutations[types.REQUEST_TEMPLATE_TYPES](state);
 
       expect(state.isLoading).toBe(true);
     });
+
+    it('sets templates to an empty array', () => {
+      state.templates = mockFileTemplates;
+
+      mutations[types.REQUEST_TEMPLATE_TYPES](state);
+
+      expect(state.templates).toEqual([]);
+    });
   });
 
   describe(`${types.RECEIVE_TEMPLATE_TYPES_ERROR}`, () => {
@@ -31,29 +44,33 @@ describe('IDE file templates mutations', () => {
     it('sets isLoading to false', () => {
       state.isLoading = true;
 
-      mutations[types.RECEIVE_TEMPLATE_TYPES_SUCCESS](state, []);
+      mutations[types.RECEIVE_TEMPLATE_TYPES_SUCCESS](state, mockFileTemplates);
 
       expect(state.isLoading).toBe(false);
     });
 
-    it('sets templates', () => {
-      mutations[types.RECEIVE_TEMPLATE_TYPES_SUCCESS](state, ['test']);
+    it('sets templates to payload', () => {
+      state.templates = ['test'];
+
+      mutations[types.RECEIVE_TEMPLATE_TYPES_SUCCESS](state, mockFileTemplates);
 
-      expect(state.templates).toEqual(['test']);
+      expect(state.templates).toEqual(mockFileTemplates);
     });
   });
 
   describe(`${types.SET_SELECTED_TEMPLATE_TYPE}`, () => {
-    it('sets selectedTemplateType', () => {
-      mutations[types.SET_SELECTED_TEMPLATE_TYPE](state, 'type');
+    it('sets templates type to selected type', () => {
+      state.selectedTemplateType = '';
 
-      expect(state.selectedTemplateType).toBe('type');
+      mutations[types.SET_SELECTED_TEMPLATE_TYPE](state, mockTemplateType);
+
+      expect(state.selectedTemplateType).toBe(mockTemplateType);
     });
 
-    it('clears templates', () => {
-      state.templates = ['test'];
+    it('sets templates to empty array', () => {
+      state.templates = mockFileTemplates;
 
-      mutations[types.SET_SELECTED_TEMPLATE_TYPE](state, 'type');
+      mutations[types.SET_SELECTED_TEMPLATE_TYPE](state, mockTemplateType);
 
       expect(state.templates).toEqual([]);
     });
@@ -61,6 +78,8 @@ describe('IDE file templates mutations', () => {
 
   describe(`${types.SET_UPDATE_SUCCESS}`, () => {
     it('sets updateSuccess', () => {
+      state.updateSuccess = false;
+
       mutations[types.SET_UPDATE_SUCCESS](state, true);
 
       expect(state.updateSuccess).toBe(true);

spec/javascripts/ide/stores/modules/file_templates/actions_spec.js

@@ -69,18 +69,16 @@ describe('IDE file templates actions', () => {
 
   describe('fetchTemplateTypes', () => {
     describe('success', () => {
-      let nextPage;
+      const pages = [[{ name: 'MIT' }], [{ name: 'Apache' }], [{ name: 'CC' }]];
 
       beforeEach(() => {
-        mock.onGet(/api\/(.*)\/templates\/licenses/).replyOnce(() => [
-          200,
-          [
-            {
-              name: 'MIT',
-            },
-          ],
-          { 'X-NEXT-PAGE': nextPage },
-        ]);
+        mock.onGet(/api\/(.*)\/templates\/licenses/).reply(({ params }) => {
+          const pageNum = params.page;
+          const page = pages[pageNum - 1];
+          const hasNextPage = pageNum < pages.length;
+
+          return [200, page, hasNextPage ? { 'X-NEXT-PAGE': pageNum + 1 } : {}];
+        });
       });
 
       it('rejects if selectedTemplateType is empty', done => {
@@ -112,43 +110,15 @@ describe('IDE file templates actions', () => {
             },
             {
               type: 'receiveTemplateTypesSuccess',
-              payload: [
-                {
-                  name: 'MIT',
-                },
-              ],
-            },
-          ],
-          done,
-        );
-      });
-
-      it('dispatches actions for next page', done => {
-        nextPage = '2';
-        state.selectedTemplateType = {
-          key: 'licenses',
-        };
-
-        testAction(
-          actions.fetchTemplateTypes,
-          null,
-          state,
-          [],
-          [
-            {
-              type: 'requestTemplateTypes',
+              payload: pages[0],
             },
             {
               type: 'receiveTemplateTypesSuccess',
-              payload: [
-                {
-                  name: 'MIT',
-                },
-              ],
+              payload: pages[0].concat(pages[1]),
             },
             {
-              type: 'fetchTemplateTypes',
-              payload: 2,
+              type: 'receiveTemplateTypesSuccess',
+              payload: pages[0].concat(pages[1]).concat(pages[2]),
             },
           ],
           done,