模型实例化时出现 kohana 错误
每次我尝试实例化某个模型并使用它时,例如:
$categories = Model::factory('category')->by_sale($id)->find_all();
我收到一个奇怪的错误。如果我在 kohana::init 中引导,设置 'errors' => TRUE,错误是:无法执行 Model_Category::__construct()
否则我只收到警告警告:array_keys() 期望参数 1 为数组,在 /application/classes 中给出 null /model.php on line 42
这里的意思是:
private function _get_real_property_name($property)
{
if (isset($this->_belongs_to[$property]) OR
isset($this->_has_one[$property]) OR
isset($this->_has_many[$property]))
return $property;
$column_prefix = $this->_table_name . '_';
$property_prefix = substr($property, 0, strlen($column_prefix));
if ($property_prefix != $column_prefix)
{
$prefixed_property = $column_prefix . $property;
if (in_array($prefixed_property, array_keys($this->table_columns())))
{
return $prefixed_property;
}
}
return $property;
}
类别模型看起来像这样:
class Model_Category extends Model {
/**
* @see ORM::_table_name
*
* @var array
*/
protected $_table_name = 'category';
/**
* @see ORM::_primary_key
*
* @var array
*/
protected $_primary_key = 'category_id';
/**
* @see ORM::_belongs_to
*
* @var array
*/
protected $_belongs_to = array(
'parent' => array('model' => 'category', 'foreign_key' => 'category_category'),
'sale' => array('foreign_key' => 'category_sale')
);
/**
* @see ORM::_has_many
*
* @var array
*/
protected $_has_many = array(
'products' => array('model' => 'product', 'foreign_key' => 'product_category')
);
/**
* Adds the 'top_level' condition to the query
*
* @return Model_Sale
*/
public function top_level()
{
return $this->where('category_category', '=', 0);
}
/**
* Adds the 'by_sale' condition to the query
*
* @return Model_Sale
*/
public function by_sale($sale_id)
{
return $this->where('category_sale', '=', $sale_id);
}
public function __get($property)
{
if ($property == 'siblings')
{
return $this->where('category_sale', '=', $this->sale->id)
->where('category_category', '=', $this->category_category);
}
if ($property == 'children')
{
return $this->where('category_category', '=', $this->pk());
}
return parent::__get($property);
}
} // End Model_Category
谢谢!
Every time I try to instantiate a certain model and use it, like for example:
$categories = Model::factory('category')->by_sale($id)->find_all();
I get a weird error. If i have i bootstrap in kohana::init set 'errors' => TRUE,the error is: Could not execute Model_Category::__construct()
else i get only a warning Warning: array_keys() expects parameter 1 to be array, null given in /application/classes/model.php on line 42
meaning here:
private function _get_real_property_name($property)
{
if (isset($this->_belongs_to[$property]) OR
isset($this->_has_one[$property]) OR
isset($this->_has_many[$property]))
return $property;
$column_prefix = $this->_table_name . '_';
$property_prefix = substr($property, 0, strlen($column_prefix));
if ($property_prefix != $column_prefix)
{
$prefixed_property = $column_prefix . $property;
if (in_array($prefixed_property, array_keys($this->table_columns())))
{
return $prefixed_property;
}
}
return $property;
}
The category model looks like this:
class Model_Category extends Model {
/**
* @see ORM::_table_name
*
* @var array
*/
protected $_table_name = 'category';
/**
* @see ORM::_primary_key
*
* @var array
*/
protected $_primary_key = 'category_id';
/**
* @see ORM::_belongs_to
*
* @var array
*/
protected $_belongs_to = array(
'parent' => array('model' => 'category', 'foreign_key' => 'category_category'),
'sale' => array('foreign_key' => 'category_sale')
);
/**
* @see ORM::_has_many
*
* @var array
*/
protected $_has_many = array(
'products' => array('model' => 'product', 'foreign_key' => 'product_category')
);
/**
* Adds the 'top_level' condition to the query
*
* @return Model_Sale
*/
public function top_level()
{
return $this->where('category_category', '=', 0);
}
/**
* Adds the 'by_sale' condition to the query
*
* @return Model_Sale
*/
public function by_sale($sale_id)
{
return $this->where('category_sale', '=', $sale_id);
}
public function __get($property)
{
if ($property == 'siblings')
{
return $this->where('category_sale', '=', $this->sale->id)
->where('category_category', '=', $this->category_category);
}
if ($property == 'children')
{
return $this->where('category_category', '=', $this->pk());
}
return parent::__get($property);
}
} // End Model_Category
Thank you!
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评论(3)
我不认识
$this->table_columns()
。当查看 http://kohanaframework.org/3.0/guide/api/Model 我那里也看不到它。您自己将此方法添加到 Model 类中了吗?我猜它没有返回正确的类型。
I don't recognize the
$this->table_columns()
. When looking at http://kohanaframework.org/3.0/guide/api/Model I don't see it there either.Have you added this method to the Model class yourself? I'm guessing it's not returning the proper type.
我对 Kohana 不太熟悉,但它与 Codeigniter 非常相似。您可以在扩展模型类的模型中尝试此操作:
function __construct(){
父级::模型();
}
(最终传递你拥有的参数)
I am not familiar with Kohana, but it is quite resembling with Codeigniter. You can try this in your model that extends model class:
function __construct(){
parent::Model();
}
(eventually pass the parameters that you have)
尝试将
$this->table_columns()
替换为$this->table_columns
(在_get_real_property_name()
中),因为table_columns< /code> 似乎是一个变量,而不是一个方法:3
Try replacing
$this->table_columns()
by$this->table_columns
(in_get_real_property_name()
) becausetable_columns
seems to be a variable, not a method :3