add list api keys for account, track last_used for api_keys

lib/models/api-key.js

@@ -1,11 +1,53 @@
 const Model = require('./model');
+const {getMysqlConnection} = require('../db');
 
 class ApiKey extends Model {
   constructor() {
     super();
   }
+
+  /**
+  * list all api keys for an account
+  */
+  static retrieveAll(account_sid) {
+    const sql = account_sid ?
+      'SELECT * from api_keys WHERE account_sid = ?' :
+      'SELECT * from api_keys WHERE account_sid IS NULL';
+    const args = account_sid ? [account_sid] : [];
+
+    return new Promise((resolve, reject) => {
+      getMysqlConnection((err, conn) => {
+        if (err) return reject(err);
+        conn.query(sql, args, (err, results) => {
+          conn.release();
+          if (err) return reject(err);
+          resolve(results);
+        });
+      });
+    });
+  }
+
+  /**
+  * update last_used api key for an account
+  */
+  static updateLastUsed(account_sid) {
+    const sql = 'UPDATE api_keys SET last_used = NOW() WHERE account_sid = ?';
+    const args = [account_sid];
+
+    return new Promise((resolve, reject) => {
+      getMysqlConnection((err, conn) => {
+        if (err) return reject(err);
+        conn.query(sql, args, (err, results) => {
+          conn.release();
+          if (err) return reject(err);
+          resolve(results);
+        });
+      });
+    });
+  }
 }
 
+
 ApiKey.table = 'api_keys';
 ApiKey.fields = [
   {
@@ -25,6 +67,18 @@ ApiKey.fields = [
   {
     name: 'service_provider_sid',
     type: 'string'
+  },
+  {
+    name: 'expires_at',
+    type: 'date'
+  },
+  {
+    name: 'created_at',
+    type: 'date'
+  },
+  {
+    name: 'last_used',
+    type: 'date'
   }
 ];