1 files changed, 45 insertions, 0 deletions
diff --git a/app/assets/javascripts/design_management_legacy/graphql.js b/app/assets/javascripts/design_management_legacy/graphql.js
new file mode 100644
index 00000000000..fae337aa75b
--- /dev/null
+++ b/app/assets/javascripts/design_management_legacy/graphql.js
@@ -0,0 +1,45 @@
+import Vue from 'vue';
+import VueApollo from 'vue-apollo';
+import { uniqueId } from 'lodash';
+import { defaultDataIdFromObject } from 'apollo-cache-inmemory';
+import createDefaultClient from '~/lib/graphql';
+import activeDiscussionQuery from './graphql/queries/active_discussion.query.graphql';
+import typeDefs from './graphql/typedefs.graphql';
+
+Vue.use(VueApollo);
+
+const resolvers = {
+  Mutation: {
+    updateActiveDiscussion: (_, { id = null, source }, { cache }) => {
+      const data = cache.readQuery({ query: activeDiscussionQuery });
+      data.activeDiscussion = {
+        __typename: 'ActiveDiscussion',
+        id,
+        source,
+      };
+      cache.writeQuery({ query: activeDiscussionQuery, data });
+    },
+  },
+};
+
+const defaultClient = createDefaultClient(
+  resolvers,
+  // This config is added temporarily to resolve an issue with duplicate design IDs.
+  // Should be removed as soon as https://gitlab.com/gitlab-org/gitlab/issues/13495 is resolved
+  {
+    cacheConfig: {
+      dataIdFromObject: object => {
+        // eslint-disable-next-line no-underscore-dangle, @gitlab/require-i18n-strings
+        if (object.__typename === 'Design') {
+          return object.id && object.image ? `${object.id}-${object.image}` : uniqueId();
+        }
+        return defaultDataIdFromObject(object);
+      },
+    },
+    typeDefs,
+  },
+);
+
+export default new VueApollo({
+  defaultClient,
+});