我正在使用 wbraganca 动态表单小部件。它适用于 Create 操作。让我感谢那些在 youtube 上制作很棒的教程视频的人!!!
我现在正在处理更新操作。我在采购订单功能上工作。
更新操作的控制器:
public function actionUpdate($id)
{
$model = $this->findModel($id);
$modelsItem = $model->purchaseitems;
if ($model->load(Yii::$app->request->post()) ) {
$oldIDs = ArrayHelper::map($modelsItem, 'purchaseitem_id', 'purchaseitem_id');
$modelsItem = Model::createMultiple(Purchaseitem::classname(), $modelsItem);
Model::loadMultiple($modelsItem, Yii::$app->request->post());
$deletedIDs = array_diff($oldIDs, array_filter(ArrayHelper::map($modelsItem, 'purchaseitem_id', 'purchaseitem_id')));
$valid = $model->validate();
$valid = Model::validateMultiple($modelsItem) && $valid;
if ($valid) {
$transaction = \Yii::$app->db->beginTransaction();
try {
if ($flag = $model->save(false)) {
if (! empty($deletedIDs)) {
Purchaseitem::deleteAll(['purchaseitem_id' => $deletedIDs]);
}
foreach ($modelsItem as $modelItem) {
$modelItem->purchaseitem_purchaseorder_id = $model->purchaseorder_id;
$modelItem->purchaseitem_description = Inventory::findOne($modelItem->purchaseitem_inventory_id)->inventory_partno;
if (! ($flag = $modelItem->save(false))) {
$transaction->rollBack();
break;
}
}
}
if ($flag) {
$transaction->commit();
return $this->redirect(['view', 'id' => $model->purchaseorder_id]);
}
} catch (Exception $e) {
$transaction->rollBack();
}
}
//return $this->redirect(['view', 'id' => $model->purchaseorder_id]);
} else {
return $this->render('update', [
'model' => $model,
'modelsItem' => (empty($modelsItem)) ? [new Purchaseitem] : $modelsItem
]);
}
}
但我认为问题可能发生在视图文件上,因为 Select2 字段可以显示值,即产品的“id”而不是产品代码。
看法:
<div class="panel panel-default">
<div class="panel-body">
<?php DynamicFormWidget::begin([
'widgetContainer' => 'dynamicform_wrapper',
'widgetBody' => '.container-items',
'widgetItem' => '.item',
'limit' => 50,
'min' => 1,
'insertButton' => '.add-item',
'deleteButton' => '.remove-item',
'model' => $modelsItem[0],
'formId' => 'dynamic-form',
'formFields' => [
'purchaseitem_inventory_id',
'purchaseitem_qty',
'purchaseitem_cost_usd',
'purchaseitem_deliverydate',
],
]); ?>
<?php foreach ($modelsItem as $i => $modelItem): ?>
<div class="item">
<?php
// necessary for update action.
if (! $modelItem->isNewRecord) {
echo Html::activeHiddenInput($modelItem, "[{$i}]purchaseitem_id");
}
?>
<div class="row">
<?= $form->field($modelItem, "[{$i}]purchaseitem_inventory_id")->widget(
Select2::classname(), [
'pluginOptions' => [
'allowClear' => true,
'minimumInputLength' => 2,
'language' => [
'errorLoading' => new JsExpression("function () { return 'Error on finding results...'; }"),
],
'ajax' => [
'url' => Url::toRoute('inventory/inventorylist'),
'dataType' => 'json',
'data' => new JsExpression('function(params) { return {q:params.term}; }')
],
'escapeMarkup' => new JsExpression('function (markup) { return markup; }'),
'templateResult' => new JsExpression('function(purchaseitem_inventory_id) { return purchaseitem_inventory_id.text; }'),
'templateSelection' => new JsExpression('function (purchaseitem_inventory_id) { return purchaseitem_inventory_id.text; }'),
],
])->label(false) ?>
<?= $form->field($modelItem, "[{$i}]purchaseitem_qty")->textInput(['maxlength' => true])->label(false) ?>
<?= $form->field($modelItem, "[{$i}]purchaseitem_cost_usd")->textInput(['maxlength' => true])->label(false) ?>
<?= $form->field($modelItem, "[{$i}]purchaseitem_deliverydate")->widget(
DatePicker::className(), [
'options' => [
['placeholder' => 'Please enter delivery date'],
],
'removeButton' => false,
'pluginOptions' => [
'autoclose'=>true,
'format' => 'yyyy-mm-dd',
'todayHighlight' => true,
]
]
)->label(false) ?>
</div>
</div>
<?php endforeach; ?>
</div>
</div>
我认为这个问题可能与那几行 JsExpression 函数有关。
'escapeMarkup' => new JsExpression('function (markup) { return markup; }'),
'templateResult' => new JsExpression('function(purchaseitem_inventory_id) { return purchaseitem_inventory_id.text; }'),
'templateSelection' => new JsExpression('function (purchaseitem_inventory_id) { return purchaseitem_inventory_id.text; }'),
对于 Select2 查询 URL 方法在这里:
public function actionInventorylist($q = null, $id = null) {
Yii::$app->response->format = yii\web\Response::FORMAT_JSON;
$out = ['results' => ['id' => '', 'text' => '']];
if (!is_null($q)) {
$query = new Query;
$query->select('inventory_id AS id, inventory_partno AS text')
->from('inventory')
->where(['like', 'inventory_partno', $q])
->limit(10);
$command = $query->createCommand();
$data = $command->queryAll();
$out['results'] = array_values($data);
}
elseif ($id > 0) {
$out['results'] = ['id' => $id, 'text' => Inventory::find($id)->inventory_partno];
}
return $out;
}
当我单击更新视图时,我可以加载记录。除了“partno”字段外,大部分数据都在表单的正确位置提供。我使用 Select2 让用户通过文本选择 partno 并将“id”存储在表中。它适用于创建视图。但在更新视图中,它只显示“id”而不是“partno”。
如果我在该字段中输入,我只能选择“其他”部分,让我在这里解释一下:
如果有 2 个代码,则带有“id”的“ABC”为 1,带有“id”的“XYZ”为 2。
记录原为“ABC”,字段显示“1”。如果我输入“XYZ”,它将显示“XYZ”作为小部件的正常效果。但是,如果我改回“ABC”,它将显示“1”而不是“ABC”。
而且表格也不能提交更新。按钮单击无效。
我是 Yii2 框架的新手,并且非常坚持这个问题,有谁知道我该如何解决这个问题?谢谢!!!!