我正在研究Yii2。我有一个正在执行以下操作的控制器。
/**
* @param $id
* @return string|\yii\web\Response
* @throws NotFoundHttpException
* @throws \Exception
* @throws \yii\db\Exception
* @throws \yii\db\StaleObjectException
*/
public function actionViewcreated($id)// passed the id of my model which is created in the previous step
{
$params = "";
//print_r('hi');
$model= $this->findModel($id); // this will find my model/record based on the id
$sub_div = $model->sub_div;
$meter_type = $model->meter_type;
$query = /** @lang text */
"SELECT DISTINCT m.`id` AS meter_id, ins.`meter_msn` AS Meter_Serial_Number, ins.`meter_type` AS Meter_Type, sd.`sub_div_code` AS Sub_Division_Code,sd.`name` AS Sub_Division_Name
FROM `installations` ins
INNER JOIN `meters` m ON ins.`meter_msn` = m.`meter_msn`
INNER JOIN `meter_acceptance_header` map ON ins.`meter_type` = map.`meter_type`
INNER JOIN `survey` sur ON ins.`ref_no` = sur.`ref_no`
INNER JOIN `survey_hesco_subdivision` sd ON sur.`sub_division` = sd.`sub_div_code`
WHERE ins.`meter_type` = '$meter_type'
AND sd.`sub_div_code` = '$sub_div'
AND m.`id` NOT IN (SELECT DISTINCT md.`meter_id` FROM
`meter_acceptance_details` md WHERE md.`flag` IN (1))";
$session = Yii::$app->session;
$session->set('my_sql', $query);
$sqlCount= /** @lang text */
"SELECT COUNT(DISTINCT m.`id`)
FROM `installations` ins
INNER JOIN `meters` m ON ins.`meter_msn` = m.`meter_msn`
INNER JOIN `meter_acceptance_header` map ON ins.`meter_type` = map.`meter_type`
INNER JOIN `survey` sur ON ins.`ref_no` = sur.`ref_no`
INNER JOIN `survey_hesco_subdivision` sd ON sur.`sub_division` = sd.`sub_div_code`
WHERE ins.`meter_type` = '$meter_type'
AND sd.`sub_div_code` = '$sub_div'
AND m.`id` NOT IN (SELECT DISTINCT md.`meter_id` FROM `meter_acceptance_details` md WHERE md.`flag` IN (1))";
$params = Yii::$app->request->queryParams;
//print_r(isset($params->Meter_Serial_Number));
if(isset($params['Meter_Serial_Number']) && $params['Meter_Serial_Number']!==''){
$query.="AND WHERE (ins.`meter_msn`='".$params['Meter_Serial_Number']."')";
$sqlCount="AND WHERE (ins.`meter_msn`='".$params['Meter_Serial_Number']."')";
}
if(isset($params['Sub_Division_Name'])&&$params['Sub_Division_Name']!==''){
$query.="AND WHERE (sd.`name`='".$params['Sub_Division_Name']."')";
$sqlCount.="AND WHERE (sd.`name`='".$params['Sub_Division_Name']."')";
}
//print_r($query);
$count = Yii::$app->db->createCommand($sqlCount)->queryScalar();
$session = Yii::$app->session;
$session->set('total', $count);
if($count <= 0)
{
$this->findModel($id)->delete();
\Yii::$app->getSession()->setFlash('errors', '
<div class="alert alert-error alert-dismissable">
<button aria-hidden="true" data-dismiss="alert" class="close"
type="button">×</button>
<strong>There are no meters installed against the selected Sub Division!!!! </strong>Acceptance is not Created</div>');
return $this->redirect(['index', 'id' => $model->id]);
}
else
{
$dataProvider = new SqlDataProvider([
'sql' => $query,
'totalCount' => $count,
'pagination' => false,
]);
return $this->render('viewcreated', [
'dataProvider' => $dataProvider,
'model' =>$model,
'id' => $model->id
]);
}
}
查看
$this->title = $model->id;
$this->title = 'Meter Acceptance Form';
$this->params['breadcrumbs'][] = $this->title;
.
.
.
<?php Pjax::begin(); ?>
<?= DetailView::widget([
'model' => $model,
'attributes' => [
[
'label'=>'Serial #',
'value' => function($d)
{
return $d->id;
}
],
[
'label' => 'Meter Type',
'value' => function ($d) {
if(is_object($d))
return $d->meter_type;
return ' - ';
},
],
'sub_div',
[
'label' => 'Sub Division Name',
'value' => function ($d) {
if(is_object($d))
return $d->subDiv->name;
return '-';
},
],
[
'label' => 'Prepared By',
'value' => function ($d) {
if(is_object($d))
return $d->prepared->name;
},
],
'prepared_at',
'status',
],
]) ?>
.
.
.
<?php Pjax::end(); ?>
.
.
.
<a href="<?= URL::toRoute(['meteracceptanceheader/viewprocess', 'id'=>$model->id])?>" name="redirect" class="btn btn-primary" id="myid">Submit</a>
当我按下Submit按钮时，出现以下错误
PHP通知“ yii \ base \ ErrorException”，并显示消息“未定义变量：模型”
在 E：\ xampp \ htdocs \ inventory-web \ backend \ views \ meteracceptanceheader \ viewcreated.php：17
第17行是$this->title = $model->id;
如何摆脱这个问题？
更新1
通过print_r($model); exit();，我得到了以下结果
common\models\MeterAcceptanceHeader Object ( [_attributes:yii\db\BaseActiveRecord:private] => Array ( [id] => 1 [sub_div] => 37111 [meter_type] => L.T.TOU [prepared_by] => 12 [prepared_at] => 2018-08-03 08:39:22 [updated_at] => [status] => Prepared ) [_oldAttributes:yii\db\BaseActiveRecord:private] => Array ( [id] => 1 [sub_div] => 37111 [meter_type] => L.T.TOU [prepared_by] => 12 [prepared_at] => 2018-08-03 08:39:22 [updated_at] => [status] => Prepared ) [_related:yii\db\BaseActiveRecord:private] => Array ( ) [_errors:yii\base\Model:private] => [_validators:yii\base\Model:private] => [_scenario:yii\base\Model:private] => default [_events:yii\base\Component:private] => Array ( ) [_behaviors:yii\base\Component:private] => Array ( ) )
更新2：
查看流程控制器
/**
* @param $id
* @return \yii\web\Response
* @throws NotFoundHttpException
* @throws \Exception
* @throws \yii\db\StaleObjectException
*/
public function actionViewprocess($id)
{
$model = $this->findModel($id);
$accpt_id = $model->id;
$meter_type = $model->meter_type;
$ogp_sub_div = $model->sub_div;
if(Yii::$app->request->isAjax && Yii::$app->request->post())
{
$data = explode(',',$_POST['data']);
foreach($data as $value)
{
$m = new MeterAcceptanceDetails;
$m -> load(Yii::$app->request->post());
$m->accpt_id = $accpt_id;
$m->meter_type = $meter_type;
$m->created_at = date('Y-m-d H:i:s');
$m->meter_id = $value;
$m->meter_msn = \common\models\Meters::idTomsn($value);
$m->flag = 1;// 1 means created
$m->ogp_sub_div = $ogp_sub_div;
if($m->save())
{
$model->status = MeterAcceptanceHeader::$status_titles[1];
$model->update();
}
else{
$this->renderAjax('viewcreated');
}
}
}
else{
$this->renderAjax('viewcreated');
}
$query = /** @lang text */
"SELECT DISTINCT a.`id` AS Accpt_Id,u.`name` AS Prepared_By,b.`meter_msn` AS Meter_Serial_Number, b.`meter_type` AS Meter_Type,
sd.`name` AS Sub_Div_Name,DATE(b.`created_at`) AS 'Date' FROM
`meter_acceptance_header` a
INNER JOIN `meter_acceptance_details` b ON a.`id` = b.`accpt_id`
INNER JOIN `survey_hesco_subdivision` sd ON b.`ogp_sub_div` = sd.`sub_div_code`
INNER JOIN `user` u ON a.`prepared_by` = u.`id`
WHERE b.`accpt_id` =$accpt_id AND b.`meter_type` = '$meter_type'";
return $this->redirect(Url::toRoute(['meteracceptanceheader/viewprocess','id' => $model->id, 'model' => $this->findModel($id)]));
}
查看流程视图
$this->title = $model->id;
$this->title = 'Meter Acceptance';
$this->params['breadcrumbs'][] = $this->title;
<section class="content-header">
<h1>Meter Acceptance</h1>
</section>
<section class="content">
<div class="box">
<div class="box-body">
<?= GridView::widget([
'dataProvider' => $dataProvider,
'columns' => [
['class' => 'yii\grid\SerialColumn'],
[
'label'=>'Serial #',
'value' => 'Accpt_Id'
],
'Date',
'Prepared_By',
'Meter_Serial_Number',
'Meter_Type',
'Sub_Div_Name',
],
]); ?>
</div>
</div>
</section>
任何帮助将不胜感激。
答案 0 :(得分：1)
您正在使用锚点链接提交到viewprocess
<a href="<?= URL::toRoute(['meteracceptanceheader/viewprocess', 'id'=>$model->id])?>" name="redirect" class="btn btn-primary" id="myid">Submit</a>
解析为一个GET请求，然后在actionViewprocess中进行检查
if(Yii::$app->request->isAjax && Yii::$app->request->post())
解析为false，并且控制转到您调用的else部分
$this->renderAjax('viewcreated')
，这是主要问题，您没有通过必需的视图传递$model，因此在第一行出现错误
$this->title = $model->id;
这也是一个例外，如果您试图将视图从另一个动作或redirect呈现给该动作，而不是使用renderAjax()，则应该传递视图所需的所有变量。
答案 1 :(得分：-2)
您的模型很可能不包含包含字段描述的phodoc注释。就是在模型类的顶部，您应该有这样的注释：
/**
* This is the model class for table "applications".
*
* @property integer $id
* @property integer $someotherfield
*/
注意：您已经发布了控制器代码，但是根据MVC原理，那里的功能属于模型。如果此评论没有帮助，请同时发布您的模型代码。