DEV: Refactor default new group permissions (#11221)

app/assets/javascripts/discourse/app/routes/new-category.js

@@ -1,17 +1,25 @@
 import I18n from "I18n";
 import DiscourseRoute from "discourse/routes/discourse";
 import { SEARCH_PRIORITIES } from "discourse/lib/constants";
+import { Promise } from "rsvp";
 
 export default DiscourseRoute.extend({
   model() {
-    const groups = this.site.groups,
-      everyoneName = groups.findBy("id", 0).name;
+    return Promise.resolve(this.groupPermissions())
+      .then((permissions) => {
+        return this.newCategoryWithPermissions(permissions);
+      })
+      .catch(() => {
+        return this.newCategoryWithPermissions(this.defaultGroupPermissions());
+      });
+  },
 
+  newCategoryWithPermissions(group_permissions) {
     return this.store.createRecord("category", {
       color: "0088CC",
       text_color: "FFFFFF",
-      group_permissions: [{ group_name: everyoneName, permission_type: 1 }],
-      available_groups: groups.map((g) => g.name),
+      group_permissions,
+      available_groups: this.site.groups.map((g) => g.name),
       allow_badges: true,
       topic_featured_link_allowed: true,
       custom_fields: {},
@@ -23,6 +31,21 @@ export default DiscourseRoute.extend({
     return I18n.t("category.create");
   },
 
+  groupPermissions() {
+    // Override this function if you want different groupPermissions from a plugin.
+    // If your plugin override fails, permissions will fallback to defaultGroupPermissions
+    return this.defaultGroupPermissions();
+  },
+
+  defaultGroupPermissions() {
+    return [
+      {
+        group_name: this.site.groups.findBy("id", 0).name,
+        permission_type: 1,
+      },
+    ];
+  },
+
   renderTemplate() {
     this.render("edit-category-tabs", {
       controller: "edit-category-tabs",