feat: add blog_options and rss feed generation

app/server/controllers/Option.controller.js

@@ -0,0 +1,60 @@
+import dbClient from "../db/index.js";
+
+export default class OptionController {
+  static async getAll() {
+    let queryText = 'SELECT * FROM blog_options';
+    try {
+      const res = await dbClient.query(queryText);
+      return res.rows;
+    } catch (err) {
+      console.log(err);
+      return [];
+    }
+  }
+
+  static async get(name) {
+    const res = await dbClient.query({
+      text: 'SELECT value FROM blog_options WHERE name=$1',
+      values: [name]
+    });
+
+    if (res.rows[0]) {
+      return res.rows[0].value;
+    }
+
+    console.log('[OptionController] cannot find option ', name);
+    return null;
+  }
+
+  static async create(name, value) {
+    const res = await dbClient.query({
+      text: 'INSERT INTO blog_options(name, value) VALUES($1, $2)',
+      values: [name, value]
+    });
+    console.log('[OptionController] create:', res.rows);
+  }
+  
+  static async update(name, value) {
+    try {
+      const res = await dbClient.query({
+        text: 'UPDATE blog_options SET value = $2 WHERE name = $1',
+        values: [name, value]
+      });
+      return res.rows;
+    } catch(err) {
+      console.error('[OptionController] update error: ', err);
+    }
+  }
+  
+  static async delete(name) {
+    try {
+      const res = dbClient.query({
+        text: 'DELETE FROM blog_options WHERE name=$1',
+        values: [name]
+      });
+      return res.rows;
+    } catch(err) {
+      console.error('[OptionController] delete error: ', err);
+    }
+  }
+}