How to send model id to ActiveFrom field - yii2

Question

I have a view team/view where I have details for the team (from the model Team).
views/team/view.php:
<?php
use yii\helpers\Html;
use yii\widgets\DetailView;
use yii\grid\GridView;
use yii\data\ActiveDataProvider;
use app\models\Pt;
/* #var $this yii\web\View */
/* #var $model app\models\Team */
$this->title = $model->name;
$this->params['breadcrumbs'][] = ['label' => 'Teams', 'url' => ['index']];
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="team-view">
<h1><?= Html::encode($this->title) ?></h1>
<p>
<?= Html::a('Update', ['update', 'id' => $model->id], ['class' => 'btn btn-primary']) ?>
<?= Html::a('Delete', ['delete', 'id' => $model->id], [
'class' => 'btn btn-danger',
'data' => [
'confirm' => 'Are you sure you want to delete this item?',
'method' => 'post',
],
]) ?>
</p>
<?= DetailView::widget([
'model' => $model,
'attributes' => [
'tournament.name',
'teamindex',
'region.name',
'rank',
],
]) ?>
<?= Html::a('add players to the team', ['pt/create'], ['class'=> 'btn btn-success']) ?>
</div>
Last link is a link button to add players to the team: <?= Html::a('add players to the team', ['pt/create'], ['class'=> 'btn btn-success']) ?>
In views/pt/create I have an ActiveForm with fields: team (dropdown list), player (dropdown list). So, if I want to add a player to the team I should choose the team's name from a looong dropdown list and then choose a player (and some player options..).
Here is views/pt/create.php:
<?php
use yii\helpers\Html;
use yii\helpers\ArrayHelper;
/* #var $this yii\web\View */
/* #var $model app\models\Pt */
$this->title = 'Add players to the team';
$this->params['breadcrumbs'][] = ['label' => 'Players in teams', 'url' => ['index']];
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="pt-create">
<h1><?= Html::encode($this->title) ?></h1>
<?= $this->render('_form', [
'model' => $model,
]) ?>
</div>
Here is views/pt/_form.php:
<?php
use yii\helpers\Html;
use yii\bootstrap\ActiveForm;
use app\models\Player;
use yii\helpers\ArrayHelper;
/* #var $this yii\web\View */
/* #var $model app\models\Pt */
/* #var $form yii\widgets\ActiveForm */
?>
<div class="pt-form">
<?php $form = ActiveForm::begin(['id'=>'owner-form']); ?>
<?= $form->field($model, 'team_id')->dropDownList($model->teamList) ?>
<?= $form->field($model, 'player_id')
->dropDownList(ArrayHelper::map(Player::find()->joinWith('category')
->orderBy(['lastname'=>SORT_ASC])->all(), 'id', 'lastname'));
?>
<div class="form-group">
<?= Html::submitButton($model->isNewRecord ? 'Add' : 'Update', ['class' => $model
->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
</div>
<?php ActiveForm::end(); ?>
</div>
I want like this: when I am on http://localhost/myproject/web/team/100 I click on that button <?= Html::a('add players to the team', ['pt/create'], ['class'=> 'btn btn-success']) ?>
and go to pt/create where in the field team already defined team_id =100 and so I need to input only player.
How can I do that? I know this is simple but I'm still learning.
PS: Models Team and Pt have relations,
models/Team.php
public function getPt()
{
return $this->hasMany(Pt::className(), ['team_id' => 'id']);
}

Answer 1

You should create a proper cation for create the player with the id_team already assigned (or you can modify the original create)
/**
* Creates a new Palyer model assigning the id_team.
* If creation is successful, the browser will be redirected to the 'view' page.
* #return mixed
*/
public function actionCreateForTeam(id_team)
{
$model = new Player();
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->id]);
} else {
$model->id_team = $id_team
return $this->render('create', [
'model' => $model,
]);
}
}
Then send the proper id_team
Html::a('add players to the team', ['pt/create-for-teaam', 'id_team'=> $model->team_id],
['class'=> 'btn btn-success']) ?>