Yii2 implements three-level linkage examples of provinces and municipalities in China-PHP Tutorial-php.cn

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Yii2 implements three-level linkage examples of provinces and municipalities in China

Mar 23, 2017 pm 02:10 PM

Yii2 realizes the three-level linkage instance of China's provinces and municipalities

Installation

Add to your composer.json file

&quot;chenkby/yii2-region&quot;: &quot;dev-master&quot;

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Switch to the project Directory

composer update;

3. Configuration

1) Add the following method in the model of the region

public static function getRegion($parentId=0)
{
  $result = static::find()-&gt;where([&#39;parent_id&#39;=&gt;$parentId])-&gt;asArray()-&gt;all();
  return ArrayHelper::map($result, &#39;id&#39;, &#39;name&#39;);
}

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2) In the controller Add the following action

public function actions()
{
  $actions=parent::actions();
  $actions[&#39;get-region&#39;]=[
    &#39;class&#39;=&gt;\chenkby\region\RegionAction::className(),
    &#39;model&#39;=&gt;\app\models\Region::className()
  ];
  return $actions;
}

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3) Add enablePrettyUrl of urlManager in main.php in common/config, that is, hide index.php

&quot;urlManager&quot; =&gt; [ 
  //用于表明urlManager是否启用URL美化功能，在Yii1.1中称为path格式URL， 
  // Yii2.0中改称美化。 
  // 默认不启用。但实际使用中，特别是产品环境，一般都会启用。 
  &quot;enablePrettyUrl&quot; =&gt; true, 
  // 是否启用严格解析，如启用严格解析，要求当前请求应至少匹配1个路由规则， 
  // 否则认为是无效路由。 
  // 这个选项仅在 enablePrettyUrl 启用后才有效。 
  &quot;enableStrictParsing&quot; =&gt; false, 
  // 是否在URL中显示入口脚本。是对美化功能的进一步补充。 
  &quot;showScriptName&quot; =&gt; false, 
  // 指定续接在URL后面的一个后缀，如 .html 之类的。仅在 enablePrettyUrl 启用时有效。 
  &quot;suffix&quot; =&gt; &quot;&quot;, 
  &quot;rules&quot; =&gt; [   
    &quot;&lt;controller:\w+&gt;/&lt;id:\d+&gt;&quot;=&gt;&quot;&lt;controller&gt;/view&quot;,
    &quot;&lt;controller:\w+&gt;/&lt;action:\w+&gt;&quot;=&gt;&quot;&lt;controller&gt;/&lt;action&gt;&quot; 
  ],
],

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4. Use

&lt;?= $form-&gt;field($model, &#39;district&#39;)-&gt;widget(\chenkby\region\Region::className(),[
  &#39;model&#39;=&gt;$model,
  &#39;url&#39;=&gt; \yii\helpers\Url::toRoute([&#39;get-region&#39;]),
  &#39;province&#39;=&gt;[
    &#39;attribute&#39;=&gt;&#39;province&#39;,
    &#39;items&#39;=&gt;Region::getRegion(),
    &#39;options&#39;=&gt;[&#39;class&#39;=&gt;&#39;form-control form-control-inline&#39;,&#39;prompt&#39;=&gt;&#39;选择省份&#39;]
  ],
  &#39;city&#39;=&gt;[
    &#39;attribute&#39;=&gt;&#39;city&#39;,
    &#39;items&#39;=&gt;Region::getRegion($model[&#39;province&#39;]),
    &#39;options&#39;=&gt;[&#39;class&#39;=&gt;&#39;form-control form-control-inline&#39;,&#39;prompt&#39;=&gt;&#39;选择城市&#39;]
  ],
  &#39;district&#39;=&gt;[
    &#39;attribute&#39;=&gt;&#39;district&#39;,
    &#39;items&#39;=&gt;Region::getRegion($model[&#39;city&#39;]),
    &#39;options&#39;=&gt;[&#39;class&#39;=&gt;&#39;form-control form-control-inline&#39;,&#39;prompt&#39;=&gt;&#39;选择县/区&#39;]
  ]
]);
?&gt;

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