merge on column based relational table in gridview yii2 - php

Question

in index.php :
'columns' => [
['class' => 'yii\grid\SerialColumn'],
'ID_REQUEST',
'NOMOR_SURAT',
[
'label' => 'Nama Depan',
'attribute' => 'ID_KARYAWAN',
'value' => 'iDKARYAWAN.FIRST_NAME'
],
[
'label' => 'Nama Belakang',
'attribute' => 'ID_KARYAWAN',
'value' => 'iDKARYAWAN.LAST_NAME'
],
which is iDKARYAWAN is relation from another table in my model
class Request extends \yii\db\ActiveRecord {
/**
* #inheritdoc
*/
public static function tableName() {
return 'ytms_it.request';
}
public function getIDKARYAWAN() {
return $this->hasOne(Karyawan::className(), ['ID_KARYAWAN' => 'ID_KARYAWAN'])->from(Karyawan::tableName(). ' b');
}
How to merge those two column ?
For the elp, thanks.

Answer 1

Create method called getFullName() in related model and calculate full name using PHP concatenation:
use yii\helpers\Html;
...
/**
* #return string
*/
public function getFullName()
{
return Html::encode($this->name . ' ' . $this->surname);
}
Optionally define a label for it in attributeLabels() method of related model:
`fullName` => 'Label for full name',
Then in GridView it's possible to display full name of related model in one column like so:
1) The shortest form:
'relatedModel.fullName',
2) Overriding the label:
[
'attribute' => 'relatedModel.fullName',
'label' => 'Overrided label',
],
3) Using closure:
[
'attribute' => 'relatedModel.fullName', // The attribute name can be different in this case
'value' => function ($model) {
// You can calculate full name here.
// But it's better to just call according method since view is only for display.
return $model->author->fullName;
},
],
Another way is to calculate full name using SQL and include as a part of query result in separate column.
Use Active Record - Selecting extra fields official docs section as a guide, also see this related issue on Github - JoinWith - assign a column aliases to an attribute of related model.
Add $fullName as public property of related model class. Modify query like so:
use yii\db\Expression;
...
->joinWith(['relatedModel' => function (\yii\db\ActiveQuery $query) {
$query->addSelect('fullName' => new Expression("CONCAT(name, ' ', surname)")]);
}]
Then to display it in GridView column you can use one of the options desribed above, for example:
'relatedModel.fullName'