Methods of implementing the cascading drop-down menu in Yii

1. Add the following code to the template:

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<?php echo $form->dropDownList($model, ‘src_type_id‘, OrderSrc::options(), array( <span style="white-space:pre"> </span>‘id‘ => ‘task-order-src-id‘, )); echo $form->dropDownList($model, ‘src_shop_id‘, array(‘‘=>‘全部‘), array( <span style="white-space:pre"> </span>‘id‘ => ‘task-shop-id‘, ))?>

In this code, ordersrc_options () reads a drop-down menu first. Call the options method in the ORDERSCR model. The contents are as follows

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public static function options($hasShop = true) { $model = new self(); if($hasShop) $model->hasShop(); $models = $model->findAll(); $array = array(‘‘=>‘全部‘); foreach($models as $model) { $array[$model->src_id] = $model->src_name; } return $array;}

2. Then add the JS code to the template page to make the content assignment to the second drop-down menu when the first drop-down menu changes.

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<script type=‘text/javascript‘>$().ready(function(e) { $(‘#task-order-src-id‘).change(function(e) { refreshShops(); }); refreshShops(); function refreshShops() { $.get(‘<?php echo $this->createUrl(‘getShops‘)?>‘, {  ‘srcId‘: $(‘#task-order-src-id‘).val() }, function(html_content) {  $(‘#task-shop-id‘)  .html(html_content)  .find(‘option[value=<?php echo $model->src_shop_id?>]‘)   .attr(‘selected‘, ‘selected‘); }); }});</script>

In this JS code, the implementation calls a program to get the value of the second drop-down menu (call the Actiongetshops method in the controller), any append to the second drop-down menu.

The Actiongetshops method in the controller is as follows:

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public function actionGetShops() { $srcId = $_GET[‘srcId‘]; $array = ThirdpartInterfaceConfig::options($srcId); $htmlContent = "<option value=‘‘>全部</options>"; foreach($array as $k=>$v) { $htmlContent .= "<option value=‘{$k}‘>{$v}</option>"; } echo $htmlContent;}

Methods of implementing the cascading drop-down menu in Yii