带数组的活动表单内的字段

Question

我有一个包含多个 select 的 dropDownList，当我进入 actionUpdate 时，我想要 dropDownList 的内容 selected（正确的内容）。

数组：

array (size=3)
  0 => 
    object(backend\models\AliHasAliPlanRef)[100]
      private '_attributes' (yii\db\BaseActiveRecord) => 
        array (size=3)
          'ali_s_id' => int 23
          'ali_plan_ref_id' => int 50
          'weight' => int 22
      private '_oldAttributes' (yii\db\BaseActiveRecord) => 
        array (size=3)
          'ali_s_id' => int 23
          'ali_plan_ref_id' => int 50
          'weight' => int 22
      private '_related' (yii\db\BaseActiveRecord) => 
        array (size=0)
          empty
      private '_errors' (yii\base\Model) => null
      private '_validators' (yii\base\Model) => null
      private '_scenario' (yii\base\Model) => string 'default' (length=7)
      private '_events' (yii\base\Component) => 
        array (size=0)
          empty
      private '_behaviors' (yii\base\Component) => 
        array (size=0)
          empty
  1 => 
    object(backend\models\AliHasAliPlanRef)[105]
      private '_attributes' (yii\db\BaseActiveRecord) => 
        array (size=3)
          'ali_s_id' => int 24
          'ali_plan_ref_id' => int 50
          'weight' => int 33
      private '_oldAttributes' (yii\db\BaseActiveRecord) => 
        array (size=3)
          'ali_s_id' => int 24
          'ali_plan_ref_id' => int 50
          'weight' => int 33
      private '_related' (yii\db\BaseActiveRecord) => 
        array (size=0)
          empty
      private '_errors' (yii\base\Model) => null
      private '_validators' (yii\base\Model) => null
      private '_scenario' (yii\base\Model) => string 'default' (length=7)
      private '_events' (yii\base\Component) => 
        array (size=0)
          empty
      private '_behaviors' (yii\base\Component) => 
        array (size=0)
          empty
  2 => 
    object(backend\models\AliHasAliPlanRef)[106]
      private '_attributes' (yii\db\BaseActiveRecord) => 
        array (size=3)
          'ali_s_id' => int 25
          'ali_plan_ref_id' => int 50
          'weight' => int 4
      private '_oldAttributes' (yii\db\BaseActiveRecord) => 
        array (size=3)
          'ali_s_id' => int 25
          'ali_plan_ref_id' => int 50
          'weight' => int 4
      private '_related' (yii\db\BaseActiveRecord) => 
        array (size=0)
          empty
      private '_errors' (yii\base\Model) => null
      private '_validators' (yii\base\Model) => null
      private '_scenario' (yii\base\Model) => string 'default' (length=7)
      private '_events' (yii\base\Component) => 
        array (size=0)
          empty
      private '_behaviors' (yii\base\Component) => 
        array (size=0)
          empty

实际上我有这段代码（并且有效，但仅适用于数组的第一项 selected）：

<?=
$form->field($ali[0], 'ali_s_id', ['template' => '{label}{input}<span class="help-block">{hint}{error}</span>'])->dropDownList(Category::getHierarchy(), ['size' => 10, 'multiple' => 'multiple'], ['prompt' => Yii::t('app', '-- Select --'),
])
?>

以上代码示例：

我想要 select 从 DropDownList 中选择的所有（正确）项目。我也试过了：

<?=
$form->field($ali, 'ali_s_id[]', ['template' => '{label}{input}<span class="help-block">{hint}{error}</span>'])->dropDownList(Category::getHierarchy(), ['size' => 10, 'multiple' => 'multiple'], ['prompt' => Yii::t('app', '-- Select --'),
])
?>

但是我收到一个错误：

Call to a member function isAttributeRequired() on array

预期结果：

Answer 1

您必须正确分配已选择的值。你可以通过两种方式做到这一点。

$ali[0]->ali_s_id = [23, 24, 25];

或

$selectedValues = ["23" => ['selected'=>true], "24" => ['selected'=>true], "25" => ['selected'=>true] ];

<?= $form->field($ali[0], 'ali_s_id', ['template' => '{label}{input}<span class="help-block">{hint}{error}</span>'])->dropDownList(Category::getHierarchy(), ['size' => 10, 'multiple' => 'multiple'],['options' => $selectedValues], 'prompt' => Yii::t('app', '-- Select --')]) ?>

带数组的活动表单内的字段

Field inside Active Form with Array

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