Yii2: Add 'user_id' when create a post - yii2

Question

I have a 'post' table with attribute 'user_id' in it to know who have posted that post. I run into a problem, when create a post, the 'user_id' didn't add into database, which can't be null, so I can't continue from there. So how can I add 'user_id' of the user that is currently logging in, automatically.
I'm using Yii2 basic template.
Thanks

Answer 1

Or you could have a look at Blameable Behavior
BlameableBehavior automatically fills the specified attributes with the current user ID.
I use this in alot of my projects (often combined with sluggable and timeable) and its easy to use, just put the following in your Post model:
use yii\behaviors\BlameableBehavior;
public function behaviors()
{
return [
[
'class' => BlameableBehavior::className(),
'createdByAttribute' => 'user_id',
'updatedByAttribute' => false,
'attributes' => [
ActiveRecord::EVENT_BEFORE_VALIDATE => ['user_id'] // If usr_id is required
]
],
];
}
Referencing Behavior validation on validation behaviors.
If you want to do it manually like the other answers suggest, you need to change
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->id]);
}
to
if ($model->load(Yii::$app->request->post()) && $model->validate()) {
$model->user_id = \Yii::$app->user->identity->id
$model->save()
return $this->redirect(['view', 'id' => $model->id]);
}
Remember: when you validate before inputting the user id, the user_id can't be required in your model rules!

Answer 2

Apart from what Bloodhound suggest, you can also use the following code to get the currently logged in user ID:
$loggedInUserId = \Yii::$app->user->getId();

Answer 3

you can try this code
//To get whole logged user data
$user = \Yii::$app->user->identity;
//To get id of the logged user
$userId = \Yii::$app->user->identity->id
Look at the documentation for more details: doc .