Question

我希望有一个带有一个文本框，2个下拉菜单和一个单选按钮（在cakephp中）的搜索表单。但这要用分页来完成。搜索和分页工作分开但不在一起。当我选择过滤条件并单击搜索按钮时，结果在第1页上显示正常，但如果我单击任何分页链接，过滤条件将丢失，并且分页数据将显示，而不显示任何过滤器。我该如何解决这个问题？控制器代码：

private function _index() {
    $this->genre_list();
    $this->language_list();
    $conditions = array();
    debug($this->postConditions($this->data)); die;
    if (!empty($this->request->data['Artist'])) {
        foreach ($this->request->data['Artist'] as $name => $record) {
            if (isset($record) && !empty($record)) {
                if ($name == 'name') {
                    $conditions = array(
                        $this->modelClass->User. 'User.name LIKE' => '%' . $record . '%',
                    );
                } else {
                    $conditions[$this->modelClass . '.' . $name] = $record;
                }
            }
        }
    };

    $this->paginate = array(
        'contain' => array (
            'User' => array(

                'City',// => array('name'),
                'State',// => array('name'),
                'Country',// => array('name'),
            ),
            'Genre',// => array('name'),
            'Language',// => array('language'),
        ),
        'limit' => 3,
        'conditions' => $conditions
    );


    $data = $this->paginate($this->modelClass);
    //~ debug($data);
    $this->set(compact('data'));
}

视图：

<?php
echo $this->Form->create('Search', array(
    'type' => 'file',
    'inputDefaults' => array(
        'format' => array(
            'label', 'between', 'input', 'error', 'after'
        )
    ),
    'class' => 'form-horizontal'
));
echo $this->Form->input('Artist.name', array(
    'div' => 'control-group',
    'label' => array(
        'class' => 'control-label',
        'text' => 'Artist Name'
    ),
    'between' => '<div class="controls">',
    'after' => '</div>',
    'placeholder' => 'Name',
    'error' => array(
        'attributes' => array(
            'wrap' => 'div',
            'style' => 'color:#B94A48'
        )
    )
));
echo $this->Form->input('Artist.genre_id', array(
    'div' => 'control-group',
    'empty' => 'All',
    'label' => array(
        'class' => 'control-label',
        'text' => 'Genre'
    ),
    'between' => '<div class="controls">',
    'after' => '</div>',
    'error' => array(
        'attributes' => array(
            'wrap' => 'div',
            'style' => 'color:#B94A48'
        )
    )
));

echo $this->Form->input('Artist.language_id', array(
    'div' => 'control-group',
    'empty' => 'All',
    'label' => array(
        'class' => 'control-label',
        'text' => 'Select Lanuage'
    ),
    'between' => '<div class="controls">',
    'after' => '</div>',
    'error' => array(
        'attributes' => array(
            'wrap' => 'div',
            'style' => 'color:#B94A48'


    )
        )
    ));
?>
<?php echo $this->element('pagination');

已编辑的会话代码

private function _index() {
    $this->genre_list();
    $this->language_list();
    $conditions = array();

    //~ foreach($this->request->params['named'] as $key => $record) {
        //~ debug($this->request->params['named']);
            //~ $this->request->data['Search'][$key] = $record;
    //~ }

    if (!empty($this->request->params['named']['page'])) {
    // use session data for conditions
    $conditions = (array)$this->Session->read('_indexConditions');
    } else {
    // delete session data
    $this->Session->delete('_indexConditions');
    }

    $conditions = array();
    if (!empty($this->request->data)) {
    // new search! use the data to make conditions,
    // like you did, and save the conditions
    //~ if (!empty($this->request->data['Artist'])) {
        foreach ($this->request->data['Search'] as $name => $record) {
            if (isset($record) && !empty($record)) {
                if ($name == 'name') {
                    $conditions = array(
                        $this->modelClass->User. 'User.name LIKE' => '%' . $record . '%',
                    );
                } else {
                    $conditions[$this->modelClass . '.' . $name] = $record;
                }
            }
        }
    //~ }
    $this->Session->write('_indexConditions', $conditions);
    }

    $this->paginate = array(
        'contain' => array (
            'User' => array(

                'City',
                'State',
                'Country',
            ),
            'Genre',
            'Language',
        ),

        'limit' => 3,
        'conditions' => $conditions
    );


    $data = $this->paginate('Artist');
    $this->set(compact('data'));
}

Answer 1

答案很简单：在会话或cookie中保存搜索条件，如果没有发送新条件，则使用这些条件。

为简单起见，我省略了很多代码。这样的事情应该有效。

private function _index() {
  // check if this is a pagination request without data
  if (!empty($this->request->params['named']['page']) {
    // use session data for conditions
    $conditions = (array)$this->Session->read('_indexConditions');
  } else {
    // delete session data
    $this->Session->delete('_indexConditions');
  }

  $conditions = array();
  if (!empty($this->request->data)) {
    // new search! use the data to make conditions,
    // like you did, and save the conditions
    $this->Session->write('_indexConditions', $conditions);
  }

  $this->paginate = array(
    'conditions' => $conditions
  );
  $data = $this->paginate($this->modelClass);
  $this->set(compact('data'));
}

它应该包含在组件中。在我的一个项目中，我有一个自动执行此操作的组件，并替换控制器数据以实现更自动化的过程。

Answer 2

获得解决方案而不使用会话

控制器中的

：

if (!empty($this->request->data) || $this->request->params['named']) {
        foreach($this->request->params['named'] as $key => $record) {
            if($key!= 'page')
                $this->request->data['Search'][$key] = $record;
        }
        foreach ($this->request->data['Search'] as $name => $record) {
            if (isset($record) && !empty($record)) {
                $this->request->params['named'][$name] = $record;
                if ($name == 'name') {
                    $conditions[$this->{$this->modelClass}->User. 'User.name LIKE'] = '%' . $record . '%';
                } else {
                    $conditions[$this->modelClass . '.' . $name] = $record;
                }
            }
        }
    }

并在视图中明确提供控制器和操作：

echo $this->Form->create('Search', array(
    'type' => 'file',
    'inputDefaults' => array(
        'format' => array(
            'label', 'between', 'input', 'error', 'after'
        )
    ),
    'url' => array(
        'controller' => 'artists',
        'action' => 'index',
    ),
    'class' => 'form-horizontal'
));

解决了这个问题。

Answer 3

在2.x中，您可以将表单设置为使用GET而不是POST。

将表单类型从文件更改为GET（BTW，为什么使用文件？）

echo $this->Form->create('Search', array(
'type' => 'get',

当然，不是使用Request

中的数据数组

$this->request->data['Search']['name']

您将使用如下查询数组：

if (!empty($this->request->query['name'])) {

在cakephp中使用搜索过滤器进行分页奇怪的行为

3 个答案: