core: drop array-style problem content (#882)

packages/ui-default/backendlib/template.ts

@@ -1,8 +1,7 @@
 import * as status from '@hydrooj/utils/lib/status';
 import { findFileSync } from '@hydrooj/utils/lib/utils';
 import {
-  avatar, buildContent, Context,
-  fs, PERM, PRIV, STATUS, yaml,
+  avatar, Context, fs, PERM, PRIV, STATUS, yaml,
 } from 'hydrooj';
 import jsesc from 'jsesc';
 import nunjucks from 'nunjucks';
@@ -86,14 +85,13 @@ class Nunjucks extends nunjucks.Environment {
       } catch {
         s = content;
       }
-      if (typeof s === 'object' && !(s instanceof Array)) {
+      if (typeof s === 'object') {
         const langs = Object.keys(s);
         const f = langs.filter((i) => i.startsWith(language));
         if (s[language]) s = s[language];
         else if (f.length) s = s[f[0]];
         else s = s[langs[0]];
       }
-      if (s instanceof Array) s = buildContent(s, html ? 'html' : 'markdown', (str) => str.translate(language));
       return ensureTag(html ? xss.process(s) : markdown.render(s));
     });
     this.addFilter('contentLang', (content) => {
@@ -103,9 +101,7 @@ class Nunjucks extends nunjucks.Environment {
       } catch {
         s = content;
       }
-      if (typeof s === 'object' && !(s instanceof Array)) {
-        return Object.keys(s);
-      }
+      if (typeof s === 'object') return Object.keys(s);
       return [];
     });
     this.addFilter('log', (self) => {