假设你已经在 DI 容器里注册了俩 db services，如下：
1<?php
2// 主库
3$di->setShared('dbWrite', function() use ($config) {
4 return new \Phalcon\Db\Adapter\Pdo\Mysql(array(
5 "host" => $config->w_database->host,
6 "username" => $config->w_database->username,
7 "password" => $config->w_database->password,
8 "dbname" => $config->w_database->name
9 ));
10});
11// 从库
12$di->setShared('dbRead', function() use ($config) {
13 return new \Phalcon\Db\Adapter\Pdo\Mysql(array(
14 "host" => $config->r_database->host,
15 "username" => $config->r_database->username,
16 "password" => $config->r_database->password,
17 "dbname" => $config->r_database->name
18 ));
19});
然后创建一个父 Model ：
1<?php
2class BaseModel extends \Phalcon\Mvc\Model{
3
4 public function initialize() {
5 $this->setWriteConnectionService('dbWrite');
6 $this->setReadConnectionService('dbRead');
7 }
8
9}
在子 Model 中直接继承即可：
1<?php
2class User extends BaseModel {
3 //code here
4}