FEATURE: Add category to knowledge explorer topic list

assets/javascripts/discourse/controllers/knowledge-explorer.js.es6

@@ -1,8 +1,18 @@
-import {
-  default as computed
-} from "ember-addons/ember-computed-decorators";
+import { default as computed } from "ember-addons/ember-computed-decorators";
 import KnowledgeExplorer from "discourse/plugins/discourse-knowledge-explorer/discourse/models/knowledge-explorer";
 
+function mergeCategories(results) {
+  const categories = Discourse.Category.list();
+  const topics = results.topics.topic_list.topics.map(t => {
+    t.category = categories.findBy("id", t.category_id);
+    return t;
+  });
+
+  results.topics.topic_list.topics = topics;
+
+  return results;
+}
+
 export default Ember.Controller.extend({
   application: Ember.inject.controller(),
   queryParams: {
@@ -108,6 +118,7 @@ export default Ember.Controller.extend({
         this.set("isLoadingMore", true);
 
         KnowledgeExplorer.loadMore(this.loadMoreUrl).then(result => {
+          result = mergeCategories(result);
           const topics = this.topics.concat(result.topics.topic_list.topics);
 
           this.setProperties({
@@ -129,6 +140,7 @@ export default Ember.Controller.extend({
       );
 
       KnowledgeExplorer.list(params).then(result => {
+        result = mergeCategories(result);
         this.setProperties({
           model: result,
           isLoading: false

assets/javascripts/discourse/routes/knowledge-explorer.js.es6

@@ -9,5 +9,20 @@ export default Ember.Route.extend({
 
   model(params) {
     return KnowledgeExplorer.list(params);
+  },
+
+  setupController(controller, model) {
+    const categories = Discourse.Category.list();
+
+    let topics = model.topics.topic_list.topics;
+
+    topics = topics.map(t => {
+      t.category = categories.findBy("id", t.category_id);
+      return t;
+    });
+
+    model.topics.topic_list.topics = topics;
+
+    controller.set("model", model);
   }
 });

assets/javascripts/discourse/templates/components/knowledge-explorer-topic-list.hbs

@@ -15,6 +15,7 @@
             }}
           </span>
           <span class="link-bottom-line">
+            {{category-link topic.category}}
             {{#each topic.tags as |tag|}}
               <span class="discourse-tag">{{tag}}</span>
             {{/each}}