phalcon学习笔记

格式乱了笔记链接 http://note.youdao.com/s/5fKQgmSG

网上下载的pdf或者官方文档说明代码示例有些错误。

$di->set和$di->setShare()是单利模式不需要再实例化了。每次请求都是同一个

forward:

是controller内部跳转

initialize 每次进入controller都会执行比如一个action中forward到另外一个控制器中 onConstruct 只初始化一次

phalcon学习笔记

model中

public function initialize() { $this->setSchema("test"); $this->setSource("user"); echo __METHOD__, '<br>'; } //保存的时候内容不发生变化不会触发 public function beforeSave() { echo __METHOD__, '<br>'; } //保存的时候内容不发生变化不会触发 public function afterSave() { echo __METHOD__, '<br>'; } public function afterFetch() { if ($this->age <= 0) { $this->age = 112221; } }

User::find('id<80 and age>100'); User::find([ 'condition' => 'id>100', 'limit' => 10, 'offset' => 3, 'order' => 'id desc' ]);

Array ( [id] => 2 [name] => test8085 [age] => 112221 )

model参数查询

$id = 2; $result = User::find([ 'conditions' => 'id = ?2',//数字和下面bind对应 'bind' => [2 => $id] ]); print_r($result->toArray()); $result = User::find([ 'conditions' => 'id = :id:', 'bind' => ['id' => $id] ]); print_r($result->toArray());

通过hydration控制输出

$id = 2; $result = User::find([ 'conditions' => 'id = ?2',//数字和下面bind对应 'bind' => [2 => $id], 'hydration' => Resultset::HYDRATE_ARRAYS//Resultset::HYDRATE_OBJECTS//Resultset::HYDRATE_RECORDS默认的 ]); foreach ($result as $obj) { var_dump($obj); }

指定field

$id = 2; $result = User::find([ 'conditions' => 'id = ?2',//数字和下面bind对应 'bind' => [2 => $id], 'columns' => 'age,name' ]); foreach ($result as $obj) { var_dump($obj); }

取最大最小等聚合

$result = User::maximum(["column" => "id"]); print_r($result); $result = User::minimum(["column" => "id"]); print_r($result); $result = User::average(["column" => "id"]); print_r($result);

更新操作

$user = User::findFirst(2); $user->name = 2222; $user->age = 2222; // var_dump($user->save());//都行 var_dump($user->update());//都行

user model

public function initialize() { $this->skipAttributesOnUpdate(['age']);//不更新age字段 $this->useDynamicUpdate(true);//加速性能,需要更新的字段更新 $this->setSchema("test"); $this->setSource("user"); echo __METHOD__, '<br>'; }

删除

phal orm没有提供批量删除，

di 管理事务

Dependency Injection

Transactions are reused no matter where the transaction object is retrieved. A new transaction is generated only when a commit() or rollback() is performed. You can use the service container to create the global transaction manager for the entire application:

<?php use Phalcon\Mvc\Model\Transaction\Manager; $container->setShared( 'transactions', function () { return new Manager(); } );

Then access it from a controller or view:

<?php use Phalcon\Mvc\Controller; use Phalcon\Mvc\Model\Transaction\Manager; /** * @property Manager $transactions */ class ProductsController extends Controller { public function saveAction() { $manager = $this->di->getTransactions(); $manager = $this->transactions; $transaction = $manager->get(); // ... } }

NOTE: While a transaction is active, the transaction manager will always return the same transaction across the application. {: .alert .alert-info }

session

phalcon学习笔记