I used the foreign key in order to obtain database values from one table over another, such as this...
public function getAuthor() {
return $this->hasOne(SiteUsers::className(), ['id' => 'authorId']);
}
... or anonymous functions within the CRUD view files, such as:
<?= GridView::widget([
'dataProvider' => $dataProvider,
'filterModel' => $searchModel,
'columns' => [
['class' => 'yii\grid\SerialColumn'],
//'id',
'hotel_id' => [
'attribute' => 'hotel_id',
'value' => function ($value) {
return \common\models\Hotels::find()
->where(['id' => $value->hotel_id])
->one()['name'];
}
],
'country_id' => [
'attribute' => 'country_id',
'value' => function ($value) {
return \common\models\Countries::find()
->where(['id' => $value->country_id])
->one()['name'];
}
],
'room_type',
'max_persons',
['class' => 'yii\grid\ActionColumn'],
],
]); ?>
Now, the question is: is one method more efficient than the other? And why?
You must keep in consideration that if you use activeRecord the relation getAuthor() is anyway performed, and this is performed for each model) involved in dataProvider.
In general the direct access is ever more fast that the ORM based access. And the access by anonymous function performed in rendering èphase is substantially equivalentd to the access peformed by relation .. the best performance are based on direct command avoiding ORM or activeRecord modelling. but this implies the lost of the level of abstraction granted by ORM.
Remember that if you have both (relation an anonymous function ) you perform the query two times ..
Related
I want to multiply two columns in the yii2 grid the grid view is as follows
<?= GridView::widget([
//'dataProvider' => $dataProvider,
'dataProvider'=>new ActiveDataProvider([
'query' => Adanalytics::find()->
where(['publisher_id' => Yii::$app->user->identity->id ])->
select('id,ad_id,MAX(impression) AS impression, MAX(view) AS view, MAX(clicks) AS clicks,MAX(cpc) AS cpclick,MAX(cpv) AS cpview, (MAX(clicks)*MAX(cpc)) AS totalccost')->
groupBy('ad_id, visitor_ip'),
]),
'filterModel' => $searchModel,
'columns' => [
['class' => 'yii\grid\SerialColumn'],
//'id',
'ad_id',
//'advertiser_id',
//'publisher_id',
//'visitor_ip',
//'type_ad',
'impression',
'view',
'clicks',
//'placed_date',
//'cpc',
//'cpv',
'cpclick',
'cpview',
'totalccost',
//'cpi',
['class' => 'yii\grid\ActionColumn'],
],
]); ?>
But it is not giving me the desired output where am I going wrong how can i do this?
If you need the column only as display value in the gridview you can create a calculated column.
'cpview',
[
'label' => 'Totalcost',
'value' => function($model){
return $model->cpclick * $model->clicks;
}
],
Or else you can add at the start of your Adanalytics class
public $totalccost;
if you want to use the calculation anywhere you can do following.
in your model
public function getTotalcost()
{
return $this->clicks * $this->cpclick;
}
and you can label to this attribute
public function attributeLabels()
{
return [
...
'totalcost' => Yii::t('app', 'Total cost'),
];
}
in grid view column
...
'cpview',
'totalcost'
You can use this function anywhere as $model->totalcost
I have solved the problem by using yii2 db query which is like this way.
$subquery = Adanalytics::find()->
select('id,ad_id,date_event,max(cpc) cpclick,max(cpv) cpview,max(impression) impression,max(view) view,max(clicks) clicks,visitor_ip,publisher_id')->
from('ad_analytics')->
where(['publisher_id' => Yii::$app->user->identity->id ])->
groupBy('ad_id,date_event,visitor_ip');
$query=Adanalytics::find()->
select('ad_id,date_event,sum(cpclick) total_click_cost,sum(cpview) total_view_cost,sum(impression) total_impression,sum(view) total_views,sum(clicks) total_clicks,publisher_id')->
from(['t'=>$subquery])->
groupBy('t.ad_id,t.date_event');
And called the column in grid view.
'columns' => [
['class' => 'yii\grid\SerialColumn'],
'ad_id',
'total_impression',
'total_views',
'total_clicks',
'total_click_cost',
'total_view_cost',
'date_event',
['class' => 'yii\grid\ActionColumn'],
],
Defined them in model before calling.
public $total_click_cost;
public $total_view_cost;
public $total_impression;
public $total_views;
public $total_clicks;
i'm developing a web application with Yii2 framework, and i'm facing a problem right now. I want to display the data from a many-to-many relation in a gridview and be able to filter from those fields later on.
I've read the official documentation here, some stackoverflow post like this and other resources but can't seem to get it to work. I have 3 tables: actividad, plan_actividad and circulo_icare, actividad is related to plan_actividad and circulo_icare is also related to it (plan_actividad is the junction table). So i have defined the following relations in my Actividad model:
class Actividad extends \yii\db\ActiveRecord
{
....
public function getPlanActividad()
{
return $this->hasMany(PlanActividad::classname(), ['act_id' => 'act_id']);
}
public function getCirculo()
{
return $this->hasMany(CirculoIcare::classname(), ['cirica_id' => 'act_id'])->via('planActividad');
}
...
}
The in my view index.php i'm trying to show the values in a gridview like this:
<?= GridView::widget([
'dataProvider' => $dataProvider,
// 'filterModel' => $searchModel,
'columns' => [
['class' => 'yii\grid\SerialColumn'],
// 'act_id',
['attribute' => 'Codigo Evento', 'value' => 'act_numorden'],
['attribute' => 'Nombre Evento', 'value' => 'act_nombre'],
['attribute' => 'Fecha Evento', 'value' => 'act_fecha'],
['attribute' => 'Locacion', 'value' => 'locacion.loc_nombre'],
[
'attribute' => 'Circulo',
'value' => 'circulo.cirica_nombre',
],
['attribute' => 'Circulo id',
'value' => 'planActividad.cirica_id',
],
// 'act_horaini',
// 'act_horafin',
// 'act_idencuesta',
// 'act_vigencia:boolean',
// 'loc_id',
['class' => 'yii\grid\ActionColumn'],
],
]); ?>
The problem is, i can't get any values to show with the circulo relation, it always shows (not set). If i change hasMany in getPlanActividad() with hasOne() then it shows some values (only 2 of 11 it should, based on the cirica_id that exist on plan_actividad table) but these are not correct anyway. I know that i can filter for those fields later on in search view but i don't really understand why the relations doesn't work as i expected.
Any help would be greatly appreciated, let me know if more info is needed and thank you in advance.
Answering my own question (credits to softark from the yii official forums).
In order for the relation to work as expected, I had to change:
public function getCirculos()
{
return $this->hasMany(CirculoIcare::classname(), ['cirica_id' => 'act_id'])->via('planActividad');
}
to
public function getCirculos()
{
return $this->hasMany(CirculoIcare::classname(), ['cirica_id' => 'cirica_id'])->via('planActividad');
}
and use a callback function in the gridview to display the correct values, since a hasMany relation gives an array of models and not a single model. So I modified the gridview code to:
<?= GridView::widget([
'dataProvider' => $dataProvider,
// 'filterModel' => $searchModel,
'columns' => [
['class' => 'yii\grid\SerialColumn'],
...
['attribute' => 'circulo',
'value' => function($model){
$items = [];
foreach($model->circulos as $circulo){
$items[] = $circulo->cirica_nombre;
}
return implode(', ', $items);
}],
...
['class' => 'yii\grid\ActionColumn'],
],
]); ?>
This gives the expected results. You can then apply filter by the relation fields easily by adapting the search model.
I have a model Certificates which has a foreign key application_id of another model called Application. So each certificate belongs to the single application.
Now there is a situation where I would like to show all the certificates of the existing user. The user id exist inside the application model like user_id.
This is the query
SELECT * FROM `certificates`
inner join applications b ON
application_id = b.id where b.user_id = 7
Now based on the records coming from the above query I would like to show some columns of the certificates and some from the applications using grid view. But for some reasons, if records are more than one then I don't get any column data from the application.
<?php Pjax::begin(); ?> <?= GridView::widget([
'dataProvider' => $dataProvider,
// 'filterModel' => $searchModel,
'columns' => [
['class' => 'yii\grid\SerialColumn'],
'application_id',
'verified_application_file_path',
'certificate_name',
'application.name',
'application.user_id',
[
'attribute' => 'creation_date',
'format' => ['date', 'php:d/m/Y']
],
[
'attribute' => 'expiry_date',
'format' => ['date', 'php:d/m/Y']
],
],
]); ?>
<?php Pjax::end(); ?></div>
The above grid shows name and user id if a single record get return otherwise it shows "Not set". I Am not sure why 'application.name' and 'application.user_id'are not working when more than one records receive.
Here is my query using yii2
/**
* Creates data provider instance with search query applied
*
* #param array $params
*
* #return ActiveDataProvider
*/
public function search_vendor_certificates($user_id)
{
$query = ApplicationCertificates::find()->joinWith('application b',true , 'INNER JOIN')->where(["b.user_id"=>$user_id]);
// add conditions that should always apply here
$dataProvider = new \yii\data\ActiveDataProvider([
'query' => $query,
]);
return $dataProvider; }
I will appreciate if someone would tell me what is the mistake I am doing in displaying the proper attributes of the application model.
First of all (don't use this, i'll show u an logical mistake):
->joinWith('application b',true , 'INNER JOIN')
U set alias for application b, and then in GridView use application. Anyway, it's still bad if u rename it to b in GridView.
Based on this answer:
Model TableTwo:
public function getTableOneRecord()
{
return $this->hasOne(TableOne::className(), ['id' => 't1_id']);
}
public function getTableThreeRecord()
{
return $this->hasOne(TableThree::className(), ['id' => 't3_id']);
}
public function getTableFourRecord()
{
return $this->hasOne(TableFour::className(), ['id' => 't4_id'])
->via('tableThreeRecord');
}
And the view file:
echo GridView::widget([
'dataProvider' => $dataProvider,
'columns' => [
'id',
't1_id',
'tableOneRecord.id',
't3_id',
'tableThreeRecord.id',
'tableThreeRecord.t4_id',
'tableFourRecord.id',
],
]);
In easiest way to say, your relation from search won't work in GridView, you have to define relations in Model and then use thems ;)
See the code on GitHub
I have gridview with some columns. I want to create one colums like
'columns' => [
['class' => 'yii\grid\SerialColumn'],
['header' => 'Manager',
//'value' => 'first'],
Column name is Manager and all fields equels 'first'? How could I do this?
Based on info provided, this is easy to achieve with custom grid column:
<?php
namespace app\components;
class CommonValueColumn extends Column
{
public $commonValue = 'Default value for common value';
protected function renderDataCellContent($model, $key, $index)
{
return $commonValue;
}
}
Then use it in GridView widget like this:
'columns' => [
// ...
[
'class' => 'app\components\CommonValueColumn',
'header' => 'Manager',
'commonValue' => 'First',
],
// ...
],
Note that if the manager is a model attribute and the value needs to be taken from database, this is a wrong way to do it.
Information about GridView widget is available in the official docs.
I have a GridView which displays an employee's summary of his/her payslip. Here's a screenshot for more understanding:
Those highlighted columns come from a different model which is the User model while the rest come from the Payslip model.
How do I merge 2 models in one GridView? Because in GridView, it is more likely for you to have a single model to display data. But how about 2 models?
Here's a code in my Payslip model, note that getUser() is generated with gii since user_id is a foreign key in my payslip table:
public function getUser()
{
return $this->hasOne(User::className(), ['user_id' => 'user_id']);
}
public function getFirstName()
{
return $this->user ? $this->user->fname : 'First Name';
}
public function getLastName()
{
return $this->user ? $this->user->lname : 'Last Name';
}
The Payslip controller:
public function actionIndex()
{
$searchModel = new PayslipSearch();
$dataProvider = $searchModel->search(Yii::$app->request->queryParams);
return $this->render('index', [
'searchModel' => $searchModel,
'dataProvider' => $dataProvider,
]);
}
And then the Payslip view:
<?php
echo GridView::widget([
'dataProvider' => $dataProvider,
//'filterModel' => $searchModel,
'columns' => [
['class' => 'yii\grid\SerialColumn'],
'payslip_id',
//'store_id',
'firstName',
'lastName',
'total_earnings',
'total_deduction',
'net_pay',
['class' => 'yii\grid\ActionColumn'],
],
]);
?>
BTW, in this example, I just created payslip #1 manually to give you a demo.
Additional info:
The logged in user is a BizAdmin user, and all of BizAdmin's staff users should be displayed in the payslip table (that table above) even if these staff users still don't have any payslip created for them. So by default, that table will be occupied already with staff users under the logged in BizAdmin user, and those staff users who still have no payslips created will be indicated "Create Payslip"
Here's an example in KashFlow:
Update view to:
<?php
echo GridView::widget([
'dataProvider' => $dataProvider,
//'filterModel' => $searchModel,
'columns' => [
['class' => 'yii\grid\SerialColumn'],
'payslip_id',
//'store_id',
['value' => function ($data) {return $data->getFirstName();}, 'label' => 'First Name'],
['value' => function ($data) {return $data->getLastName();}, 'label' => 'LastName'],
'total_earnings',
'total_deduction',
'net_pay',
['class' => 'yii\grid\ActionColumn'],
],
]);
?>
And in $searchModel->search add you relation, like that:
$query = Payslip::find()->with(['user']);
Read for data column - http://www.yiiframework.com/doc-2.0/guide-output-data-widgets.html#data-column