Php 使用saveAll时在行为的beforeSave中修改模型数据
我正在尝试为我正在工作的项目编写一个元行为,它允许我为模型分配自定义变量/属性,类似于在wordpress帖子中创建自定义字段的方式 我已经创建了一个元行为,它将元模型绑定到它所作用的模型,并且还有一个beforeSave回调,该回调循环通过models数据变量,并将模型名称放入元数组中 所有内容都在保存,但当我检查数据库时,模型字段返回为空 元数据的数据库结构是Php 使用saveAll时在行为的beforeSave中修改模型数据,php,cakephp,models,behavior,Php,Cakephp,Models,Behavior,我正在尝试为我正在工作的项目编写一个元行为,它允许我为模型分配自定义变量/属性,类似于在wordpress帖子中创建自定义字段的方式 我已经创建了一个元行为,它将元模型绑定到它所作用的模型,并且还有一个beforeSave回调,该回调循环通过models数据变量,并将模型名称放入元数组中 所有内容都在保存,但当我检查数据库时,模型字段返回为空 元数据的数据库结构是 id - A unique if for the meta model - The name of the model that t
id - A unique if for the meta
model - The name of the model that this meta entry is associated with
foreign_id - The id of the above model that this meta entry is associated with
key - Name of the meta variable
value - Value of the meta variable
来自表单的saveAll函数的数据是
Array
(
[Page] => Array
(
[id] => 12
[name] => Test
[slug] => a/b/c/d
[layout] => 0
[body] => Test multilevel
)
[Meta] => Array
(
[0] => Array
(
[id] => 1
[key] => page_title
[value] => About Us
)
[1] => Array
(
[id] => 6
[key] => test4
[value] => test
)
[2] => Array
(
[key] => test3
[value] => lala
)
)
)
在它运行完保存之前的行为之后
Array
(
[Page] => Array
(
[id] => 12
[name] => Test
[slug] => a/b/c/d
[layout] => 0
[body] => Test multilevel
[modified] => 2010-05-04 15:56:54
)
[Meta] => Array
(
[0] => Array
(
[id] => 1
[key] => page_title
[value] => About Us
[model] => Page
)
[1] => Array
(
[id] => 6
[key] => test4
[value] => test
[model] => Page
)
[2] => Array
(
[key] => test3
[value] => lala
[model] => Page
)
)
)
行为中的代码是
<?php
/**
* Meta Model Behavior
*
* Adds custom variables to models
*
**/
class MetaBehavior extends ModelBehavior {
/**
* Contains configuration settings for use with individual model objects.
* Individual model settings should be stored as an associative array,
* keyed off of the model name.
*
* @var array
* @access public
* @see Model::$alias
*/
var $__settings = array();
var $__defaults = array(
'class' => 'Meta',
'foreign_key' => 'foreign_id',
'dependent' => true,
'auto_bind' => true
);
/**
* Initiate Meta Behavior
*
* @param object $model
* @param array $config
* @return void
* @access public
*/
function setup(&$model, $settings = array()) {
$default = $this->__defaults;
$default['conditions'] = array('Meta.model' => $model->alias);
if (!isset($this->__settings[$model->alias])) {
$this->__settings[$model->alias] = $default;
}
$this->__settings[$model->alias] = array_merge($this->__settings[$model->alias], ife(is_array($settings), $settings, array()));
if ($this->__settings[$model->alias]['auto_bind']) {
$hasManyMeta = array(
'Meta' => array(
'className' => $this->__settings[$model->alias]['class'],
'foreignKey' => $this->__settings[$model->alias]['foreign_key'],
'dependent' => $this->__settings[$model->alias]['dependent'],
'conditions' => $this->__settings[$model->alias]['conditions']
)
);
$metaBelongsTo = array(
$model->alias => array(
'className' => $model->alias,
'foreignKey' => $this->__settings[$model->alias]['foreign_key']
)
);
$model->bindModel(array('hasMany' => $hasManyMeta), false);
$model->Meta->bindModel(array('belongsTo' => $metaBelongsTo), false);
}
}
function beforeSave(&$model) {
foreach($model->data[$this->__settings['class']] as $key => $value) {
$model->data[$this->__settings['class']][$key]['model'] = $model->alias;
}
return true;
}
} // End of MetaBehavior
?>
我有一种感觉,这可能是因为关系和saveall在保存关联时使用了传递的数据(原始数据)
我想到的唯一其他方法是删除关系并将一些代码放入行为的afterSave函数中以处理保存,然后将一些其他代码放入afterFind中以检索它们
有什么想法吗
干杯,
Dean我不相信您会有任何运气,因为Model::saveAll()根本不调用beforeSave()。实际上,它在调用$this->save()之前加载关联 模型源的第页显示了在对模型进行任何实际调用之前加载的关联::u save(),该调用不只是验证数据 这意味着,乍一看,MetaBehavior中的magic bindModel()调用似乎不会产生任何影响。老实说,我并不真的为这样的事情烦恼,因为在页面模型类定义中设置关联更简单 当然,你可以:
- 在MetaBehavior中创建一个afterSave,以便于保存元模型数据,或
- 在模型中重写saveAll()以添加绑定,然后调用parent::saveAll()
TLDR;您已经将
Meta
添加到您的行为数组中,添加关联只是同一文件中的另外几行代码。为什么不通过正常的HasMany关联将Meta与页面模型关联起来呢?您是否也需要将Meta与其他模型关联?