fix: use frontmatter format for metadata in storage

server/models/pages.js

@@ -114,6 +114,27 @@ module.exports = class Page extends Model {
     })
   }
 
+  /**
+   * Inject page metadata into contents
+   */
+  injectMetadata () {
+    let meta = [
+      ['title', this.title],
+      ['description', this.description],
+      ['published', this.isPublished.toString()],
+      ['date', this.updatedAt],
+      ['tags', '']
+    ]
+    switch (this.contentType) {
+      case 'markdown':
+        return '---\n' + meta.map(mt => `${mt[0]}: ${mt[1]}`).join('\n') + '\n---\n\n' + this.content
+      case 'html':
+        return '<!--\n' + meta.map(mt => `${mt[0]}: ${mt[1]}`).join('\n') + '\n-->\n\n' + this.content
+      default:
+        return this.content
+    }
+  }
+
   static async createPage(opts) {
     await WIKI.models.pages.query().insert({
       authorId: opts.authorId,