CakePHP: 一些验证笔记
CakePHP 2.x CookBook 中文版 第七章 模型 之 数据校验 http://www.cnblogs.com/matchless/archive/2013/02/20/2918541.html
一些规则关键字：
‘rule’ => ‘alphaNumeric’,
‘rule’ => ’email’,
‘rule’ => ‘date’,
‘rule’ => array(‘between’, 5, 15),
‘rule’ => array(‘minLength’, ‘8’),
‘rule’ => array(‘maxLength’, ‘8’),
‘required’ => true,
‘allowEmpty’ => true
一个例子：
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Php代码 class User extends AppModel { public $validate = array( 'login' => array( 'alphaNumeric' => array( 'rule' => 'alphaNumeric', 'required' => true, 'message' => 'Alphabets and numbers only' ), 'between' => array( 'rule' => array('between', 5, 15), 'message' => 'Between 5 to 15 characters' ) ), 'password' => array( 'rule' => array('minLength', '8'), 'message' => 'Minimum 8 characters long' ), 'email' => 'email', 'born' => array( 'rule' => 'date', 'message' => 'Enter a valid date', 'allowEmpty' => true ) ); } |
1.简单的验证：
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Php代码 class User extends AppModel { public $validate = array( 'login' => 'alphaNumeric', 'email' => 'email', 'born' => 'date' ); } |
2.一个字段的多个验证规则
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Php代码 public $validate = array( 'enp_name' => array( "minLength"=>array( "rule"=>array("minLength",1), "message"=>"至少输入一个文字" ), "maxLength"=>array( "rule"=>array("maxLength",3), "message"=>"名称的个数不能大于3个" ) ) ); |
3.单个规则：每个列一个规则
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Php代码 public $validate = array( 'fieldName1' => array( 'rule' => 'ruleName', // or: array('ruleName', 'param1', 'param2' ...) 'required' => true, 'allowEmpty' => false, 'on' => 'create', // or: 'update' 'message' => 'Your Error Message' ) ); |
4.多个规则
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Php代码 public $validate = array( 'fieldName' => array( 'ruleName' => array( 'rule' => 'ruleName', // 类似 on，required 等扩展键放在这里... ), 'ruleName2' => array( 'rule' => 'ruleName2', // 类似 on，required 等扩展键放在这里... ) ) ); |
5.自定义校验规则
A:自定义校验正则表达式
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Php代码 public $validate = array( 'login' => array( 'rule' => '/^[a-z0-9]{3,}$/i', 'message' => 'Only letters and integers, min 3 characters' ) ); |
B:添加自己的校验方法
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Php代码 class User extends AppModel { public $validate = array( 'promotion_code' => array( 'rule' => array('limitDuplicates', 25), 'message' => 'This code has been used too many times.' ) ); public function limitDuplicates($check, $limit) { // $check 的值： array('promotion_code' => 'some-value') // $limit 的值： 25 $existing_promo_count = $this->find('count', array( 'conditions' => $check, 'recursive' => -1 )); return $existing_promo_count < $limit; } } |
6.动态改变校验规则
A:添加新的校验规则
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Php代码 $this->validator()->add('password', 'required', array( 'rule' => 'notEmpty', 'required' => 'create' )); |
B:链式多次调用 add 来创建多条所需的规则
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Php代码 // 在模型类中 $this->validator() ->add('password', 'required', array( 'rule' => 'notEmpty', 'required' => 'create' )) ->add('password', 'size', array( 'rule' => array('between', 8, 20), 'message' => 'Password should be at least 8 chars long' )); |
C:一次性为单个列添加多条规则
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Php代码 $this->validator()->add('password', array( 'required' => array( 'rule' => 'notEmpty', 'required' => 'create' ), 'size' => array( 'rule' => array('between', 8, 20), 'message' => 'Password should be at least 8 chars long' ) )); |
