如何使用会话 [Sonata Admin] 在过滤器中设置默认值

Question

我想为 filterParameters 的默认值设置动态会话值

此代码有效：

/**
 * Default Datagrid values
 *
 * @var array
 */
protected $datagridValues = array(
    'applications' => array('value' => 'Sport TV'),
    '_sort_order' => 'ASC'
);

// Fields to be shown on filter forms
protected function configureDatagridFilters(DatagridMapper $datagridMapper)
{
    $datagridMapper
        ->add('title')
        ->add('applications', null, array('label' => 'Chaîne'), null, array('expanded' => true, 'multiple' => true));
}

但是当我添加会话时，他不希望我在功能：

public function getApplicationsSession()
{
    $session = new Session();
    return $session->get('applications');
}

/**
 * Default Datagrid values
 *
 * @var array
 */
protected $datagridValues = array(
    'applications' => array('value' => $this->getApplicationsSession()),
    '_sort_order' => 'ASC'
);

我有这个错误：

Parse Error: syntax error, unexpected '$this' (T_VARIABLE)

感谢您的帮助。

Answer 1

这部分代码是错误原因：

protected $datagridValues = array(
    'applications' => array('value' => $this->getApplicationsSession()),
                                         ^---- syntax error !
    '_sort_order' => 'ASC'
);

The pseudo-variable $this is available when a method is called from within an object context. $this is a reference to the calling object (usually the object to which the method belongs... http://php.net/manual/en/language.oop5.basic.php

要解决这个问题，您应该覆盖 getFilterParameters() 方法：

public function getFilterParameters()
{
    $this->datagridValues['applications']['value'] = $this->getApplicationsSession();

    return parent::getFilterParameters();
}

如何使用会话 [Sonata Admin] 在过滤器中设置默认值

How have default value in filter with session [Sonata Admin]

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