首先抱歉我的英语不好!
我正在使用Yii2-dynamicforms extension到 Yii 2 中的嵌套表单。
正在关注this guide ，我能够使创建操作正常工作，但部分更新操作。
让我用我的案例来解释一下......
我可以创建一个包含多个组 (grupo) 的任务 (missao)，并为每个组创建多个槽位；
在更新时，我可以为现有组添加一些插槽，但是当我尝试添加新组并为这个新组添加新插槽时，我收到错误 Undefined offset: 2//例如
Controller 中更新操作的此部分附近发生错误:
// get Slots data from POST
$newSlotIds = [];
$loadsData['_csrf'] = Yii::$app->request->post()['_csrf'];
for ($i=0; $i < count($modelsGrupos); $i++) {
$loadsData['MissaoSlot'] = Yii::$app->request->post()['MissaoSlot'][$i];
// ERROR POINTS TO THE LINE BELOW
$modelsSlots[$i] = Model::createMultiple(MissaoSlot::classname(), $modelsSlots[$i], $loadsData);
Model::loadMultiple($modelsSlots[$i], $loadsData);
$newSlotIds = array_merge($newSlotIds, ArrayHelper::getColumn($loadsData['MissaoSlot'], 'id'));
}
在 Yii 日志上，我看到这个:
Failed to set unsafe attribute 'id' in 'app\models\MissaoGrupo'.
/var/www/html/qg_armapoint/modules/admin/controllers/MissaoController.php (134)
第 134 行:
Model::loadMultiple($modelsGrupos, Yii::$app->request->post());
我已经检查了 his example 之后的所有代码并没有发现错误。
请问有人可以帮我吗？
Controller 中我的更新操作:
use app\models\Missao;
use app\models\MissaoGrupo;
use app\models\MissaoSlot;
use app\base\Model;
use yii\helpers\ArrayHelper;
/**
........
*/
public function actionUpdate($id)
{
// retrieve existing Missao (mission) data
$model = $this->findModel($id);
// retrieve existing Grupos (groups) data
$oldGrupoIds = MissaoGrupo::find()->select('id')->where(['missao_id' => $id])->asArray()->all();
$oldGrupoIds = ArrayHelper::getColumn($oldGrupoIds,'id');
$modelsGrupos = MissaoGrupo::findAll(['id' => $oldGrupoIds]);
$modelsGrupos = (empty($modelsGrupos)) ? [new MissaoGrupo] : $modelsGrupos;
// retrieve existing Slots data
$oldSlotIds = [];
foreach ($modelsGrupos as $i => $modelGrupo) {
$oldSlots = MissaoSlot::findAll(['grupo_id' => $modelGrupo->id]);
$modelsSlots[$i] = $oldSlots;
$oldSlotIds = array_merge($oldSlotIds, ArrayHelper::getColumn($oldSlots, 'id'));
$modelsSlots[$i] = (empty($modelsSlots[$i])) ? [new MissaoSlot()] : $modelsSlots[$i];
}
// handle POST
if ($model->load(Yii::$app->request->post())) {
// get Groups data from POST
$modelsGrupos = Model::createMultiple(MissaoGrupo::classname(), $modelsGrupos);
Model::loadMultiple($modelsGrupos, Yii::$app->request->post());
$newGrupoIds = ArrayHelper::getColumn($modelsGrupos, 'id');
// get Slots data from POST
$newSlotIds = [];
$loadsData['_csrf'] = Yii::$app->request->post()['_csrf'];
for ($i=0; $i < count($modelsGrupos); $i++) {
$loadsData['MissaoSlot'] = Yii::$app->request->post()['MissaoSlot'][$i];
$modelsSlots[$i] = Model::createMultiple(MissaoSlot::classname(), $modelsSlots[$i], $loadsData);
Model::loadMultiple($modelsSlots[$i], $loadsData);
$newSlotIds = array_merge($newSlotIds, ArrayHelper::getColumn($loadsData['MissaoSlot'], 'id'));
}
// delete removed data
$delSlotIds = array_diff($oldSlotIds, $newSlotIds);
if (! empty($delSlotIds)) MissaoSlot::deleteAll(['id' => $delSlotIds]);
$delGrupoIds = array_diff($oldGrupoIds, $newGrupoIds);
if (! empty($delGrupoIds)) MissaoGrupo::deleteAll(['id' => $delGrupoIds]);
// validate all models
$valid = $model->validate();
$valid = $this->validaMissao($modelsGrupos, $modelsSlots) && $valid;
if ($valid) {
if ($this->saveMissao($model, $modelsGrupos, $modelsSlots)) {
return $this->redirect(['view', 'id' => $model->id]);
}
}
}
return $this->render('update', [
'model' => $model,
'modelsGrupos' => $modelsGrupos,
'modelsSlots' => $modelsSlots,
]);
}
protected function saveMissao($modelMissao, $modelsGrupos, $modelsSlots)
{
$transaction = \Yii::$app->db->beginTransaction();
try {
if ($go = $modelMissao->save(false)) {
foreach ($modelsGrupos as $i => $modelGrupo) {
$modelGrupo->missao_id = $modelMissao->id;
if ($go = $modelGrupo->save(false)) {
foreach ($modelsSlots[$i] as $j => $modelSlot) {
$modelSlot->grupo_id = $modelGrupo->id;
if (! ($go = $modelSlot->save(false))) {
$transaction->rollBack();
break;
}
}
}
}
}
if ($go) {
$transaction->commit();
}
} catch (Exception $e) {
$transaction->rollBack();
}
return $go;
}
应用程序\基础\模型
namespace app\base;
use Yii;
use yii\helpers\ArrayHelper;
class Model extends \yii\base\Model
{
/**
* Creates and populates a set of models.
*
* @param string $modelClass
* @param array $multipleModels
* @return array
*/
public static function createMultiple($modelClass, $multipleModels = [], $data = null)
{
$model = new $modelClass;
$formName = $model->formName();
$post = empty($data) ? Yii::$app->request->post($formName) : $data[$formName];
$models = [];
if (! empty($multipleModels)) {
$keys = array_keys(ArrayHelper::map($multipleModels, 'id', 'id'));
$multipleModels = array_combine($keys, $multipleModels);
}
if ($post && is_array($post)) {
foreach ($post as $i => $item) {
if (isset($item['id']) && !empty($item['id']) && isset($multipleModels[$item['id']])) {
$models[] = $multipleModels[$item['id']];
} else {
$models[] = new $modelClass;
}
}
}
unset($model, $formName, $post);
return $models;
}
}
景色
<div role="tabpanel" class="tab-pane" id="aba-slots">
<br/>
<div class="panel panel-default">
<div class="panel-body">
<?php DynamicFormWidget::begin([
'widgetContainer' => 'dynamicform_wrapper',
'widgetBody' => '.container-grupos',
'widgetItem' => '.grupo',
//'limit' => 4,
'min' => 1,
'insertButton' => '.add-grupo',
'deleteButton' => '.remove-grupo',
'model' => $modelsGrupos[0],
'formId' => 'frm_missao',
'formFields' => [
'nome',
],
]); ?>
<div class="panel panel-default">
<div class="panel-heading">Grupos / Slots</div>
<div class="panel-body container-grupos">
<?php foreach ($modelsGrupos as $i => $modelGrupo): ?>
<div class="row grupo"> <!-- Item Grupo - INICIO -->
<table class="table">
<tr>
<th style="width:5%">#</th>
<th>Grupo</th>
<th>Slot</th>
</tr>
<tr>
<td><button class="btn btn-danger remove-grupo"><i class="fa fa-minus"></i></button></td>
<td class="col-md-4">
<?php
// necessary for update action.
if (! $modelGrupo->isNewRecord) {
echo Html::activeHiddenInput($modelGrupo, "[{$i}]id");
}
?>
<?= $form->field($modelGrupo, "[{$i}]nome")->textInput(['maxlength' => true, 'placeholder' => 'Nome do Grupo'])->label(false) ?>
</td>
<td><!-- Slots -->
<?php DynamicFormWidget::begin([
'widgetContainer' => 'dynamicform_inner',
'widgetBody' => '.container-slots',
'widgetItem' => '.slot',
//'limit' => 10,
'min' => 1,
'insertButton' => '.add-slot',
'deleteButton' => '.remove-slot',
'model' => $modelsSlots[$i][0],
'formId' => 'frm_missao',
'formFields' => [
'nome',
],
]); ?>
<table class="table container-slots">
<?php foreach ($modelsSlots[$i] as $j => $modelSlot): ?>
<tr class="slot">
<td>
<?php
// necessary for update action.
if (! $modelSlot->isNewRecord) {
echo Html::activeHiddenInput($modelSlot, "[{$i}][{$j}]id");
}
?>
<?= $form->field($modelSlot, "[{$i}][{$j}]nome")->textInput(['maxlength' => true, 'placeholder' => 'Nome do Slot'])->label(false) ?>
</td>
<td style="width:5%"><button class="btn btn-danger btn-xs remove-slot"><i class="fa fa-minus"></i></button></td>
</tr>
<?php endforeach; ?>
<tfoot>
<tr>
<td colspan="2"><button class="btn btn-info btn-xs add-slot"><i class="fa fa-plus"></i> Novo Slot</button></td>
</tr>
</tfoot>
</table>
<?php DynamicFormWidget::end(); ?>
</td><!--Slots - fim -->
</tr>
</table>
</div> <!-- Item Grupo - FIM -->
<?php endforeach; ?>
</div>
<div class="panel-footer">
<button class="btn btn-primary btn-xs add-grupo"><i class="fa fa-plus"></i> Novo Grupo</button>
</div>
</div>
<?php DynamicFormWidget::end(); ?>
</div>
</div>
</div>
谢谢!
编辑:添加了 MissaoGrupo 模型
namespace app\models;
use Yii;
/**
* This is the model class for table "{{%missao_grupo}}".
*
* @property integer $id
* @property string $nome
* @property integer $missao_id
*
* @property Missao $missao
* @property MissaoSlot[] $missaoSlots
*/
class MissaoGrupo extends \yii\db\ActiveRecord
{
/**
* @inheritdoc
*/
public static function tableName()
{
return '{{%missao_grupo}}';
}
/**
* @inheritdoc
*/
public function rules()
{
return [
[['nome'], 'required'],
[['missao_id'], 'integer'],
[['nome'], 'string', 'max' => 255]
];
}
/**
* @inheritdoc
*/
public function attributeLabels()
{
return [
'id' => 'ID',
'nome' => 'Grupo',
'missao_id' => 'Missao ID',
];
}
/**
* @return \yii\db\ActiveQuery
*/
public function getMissao()
{
return $this->hasOne(Missao::className(), ['id' => 'missao_id']);
}
/**
* @return \yii\db\ActiveQuery
*/
public function getMissaoSlots()
{
return $this->hasMany(MissaoSlot::className(), ['grupo_id' => 'id']);
}
}
最佳答案
这很简单。考虑这种情况:
在代码中:
$modelsGrupos = MissaoGrupo::findAll(['id' => $oldGrupoIds]);
$modelsGrupos = (empty($modelsGrupos)) ? [new MissaoGrupo] : $modelsGrupos;
如果选择正确，可能不会有 id 等于“2”的数据库记录。因为下面的代码:
// retrieve existing Slots data
$oldSlotIds = [];
foreach ($modelsGrupos as $i => $modelGrupo) {
$oldSlots = MissaoSlot::findAll(['grupo_id' => $modelGrupo->id]);
$modelsSlots[$i] = $oldSlots;
$oldSlotIds = array_merge($oldSlotIds, ArrayHelper::getColumn($oldSlots, 'id'));
$modelsSlots[$i] = (empty($modelsSlots[$i])) ? [new MissaoSlot()] : $modelsSlots[$i];
}
$i 永远不会等于“2”，因此不会有 $modelsSlots[2]。但在下面的代码中 $i 的值可能为“2”，因此您尝试使用不存在的数组偏移量时会出现错误。 (例如，有 5 个 modelsGroup，但没有一个 id 等于“2”)
for ($i=0; $i < count($modelsGrupos); $i++) {
$loadsData['MissaoSlot'] = Yii::$app->request->post()['MissaoSlot'][$i];
$modelsSlots[$i] = Model::createMultiple(MissaoSlot::classname(), $modelsSlots[$i], $loadsData);
Model::loadMultiple($modelsSlots[$i], $loadsData);
$newSlotIds = array_merge($newSlotIds, ArrayHelper::getColumn($loadsData['MissaoSlot'], 'id'));
}
我建议将此代码更改为类似的内容:
$i = 0;
foreach ($modelsGrupos as $id => $value) {
$loadsData['MissaoSlot'] = Yii::$app->request->post()['MissaoSlot'][$i];
$modelsSlots[$id] = Model::createMultiple(MissaoSlot::classname(), $modelsSlots[$id], $loadsData);
Model::loadMultiple($modelsSlots[$id], $loadsData);
$newSlotIds = array_merge($newSlotIds, ArrayHelper::getColumn($loadsData['MissaoSlot'], 'id'));
$i++;
}
除此之外，您应该在模型的验证规则中添加“id”参数作为安全属性，以消除日志文件中的错误:
public function rules()
{
return [
[['nome'], 'required'],
[['missao_id'], 'integer'],
[['nome'], 'string', 'max' => 255],
[['id'], 'safe']
];
}
编辑:
这个示例怎么样:
$i = 0;
foreach ($modelsGrupos as $id => $value) {
$loadsData['MissaoSlot'] = Yii::$app->request->post()['MissaoSlot'][$i];
if (!isset($modelsSlots[$id])
$modelsSlots[$id] = [new MussaoSlot()];
$modelsSlots[$id] = Model::createMultiple(MissaoSlot::classname(), $modelsSlots[$id], $loadsData);
Model::loadMultiple($modelsSlots[$id], $loadsData);
$newSlotIds = array_merge($newSlotIds, ArrayHelper::getColumn($loadsData['MissaoSlot'], 'id'));
$i++;
}
关于php - Yii 2 嵌套形式，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32585832/