/
Region.php
104 lines (88 loc) · 3.3 KB
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Region.php
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<?php
namespace chenkby\region;
use yii\base\InvalidParamException;
use yii\base\Widget;
use yii\helpers\ArrayHelper;
use yii\helpers\Html;
class Region extends Widget
{
public $model = null;
/**
* @var string 此属性不用处理
*/
public $attribute;
/**
* @var array 省份配置
*/
public $province = [];
/**
* @var array 城市配置
*/
public $city = [];
/**
* @var array 县/区配置
*/
public $district = [];
/**
* @var mixed 数据源
*/
public $url;
public function init()
{
if (!$this->model) {
throw new InvalidParamException('model不能为null!');
}
if (empty($this->province) || empty($this->city)) {
throw new InvalidParamException('province和city不能为空！');
}
$cityId = Html::getInputId($this->model, $this->city['attribute']);
if (empty($this->city['options']['prompt'])) {
$this->city['options']['prompt'] = '选择城市';
}
$cityDefault = Html::renderSelectOptions('city', ['' => $this->city['options']['prompt']]);
$joinChar = strripos($this->url, '?') ? '&' : '?';
$url = $this->url . $joinChar;
if (!empty($this->district)) {
if (empty($this->district['options']['prompt'])) {
$this->district['options']['prompt'] = '选择县/区';
}
$districtId = Html::getInputId($this->model, $this->district['attribute']);
$districtDefault = Html::renderSelectOptions('district', ['' => $this->district['options']['prompt']]);
$this->city['options'] = ArrayHelper::merge($this->city['options'], [
'onchange' => "
if($(this).val() != ''){
$.get('{$url}parent_id='+$(this).val(), function(data) {
$('#{$districtId}').html('{$districtDefault}'+data);
})
}else{
$('#{$districtId}').html('{$districtDefault}');
}
"
]);
}
$this->province['options'] = ArrayHelper::merge($this->province['options'], [
'onchange' => "
if($(this).val()!=''){
$.get('{$url}parent_id='+$(this).val(), function(data) {
$('#{$cityId}').html('{$cityDefault}'+data);
})
}else{
$('#{$cityId}').html('{$cityDefault}');
}
$('#{$districtId}').html('{$districtDefault}');
"
]);
}
public function run()
{
$output[] = Html::activeDropDownList($this->model, $this->province['attribute'], $this->province['items'],
$this->province['options']);
$output[] = Html::activeDropDownList($this->model, $this->city['attribute'], $this->city['items'],
$this->city['options']);
if (!empty($this->district)) {
$output[] = Html::activeDropDownList($this->model, $this->district['attribute'], $this->district['items'],
$this->district['options']);
}
return @implode("\n", $output);
}
}