feat: allow extending the includes used by PollListState (#99)

js/src/forum/states/PollListState.ts

@@ -26,7 +26,7 @@ export default class PollListState<P extends PollListParams = PollListParams> ex
 
   requestParams(): PaginatedListRequestParams {
     const params = {
-      include: this.params.include || ['options', 'votes'],
+      include: this.requestIncludes(),
       filter: this.params.filter || {},
       sort: this.sortMap()[this.params.sort ?? ''],
     };
@@ -38,6 +38,20 @@ export default class PollListState<P extends PollListParams = PollListParams> ex
     return params;
   }
 
+  includes(): string[] {
+    return ['options', 'votes'];
+  }
+
+  private requestIncludes(): string {
+    const standard = this.includes();
+
+    // merge the standard includes with the custom includes
+    const merged = [...standard, ...(this.params.include || [])];
+
+    // return as a comma separated string
+    return merged.join(',');
+  }
+
   protected loadPage(page: number = 1): Promise<ApiResponsePlural<Poll>> {
     const preloadedPolls = app.preloadedApiDocument<Poll[]>();