CODEWITHSUNDEEP
laraveleloquentlaravel-8
Stackoverflower
Stackoverflower

Reputation: 57

Load Model relations from a Observer method

How can i load a relation from a model in an Observer?
When i try to load the relation in the created method using $inport->load('items') it returns an empty array.
This is the relation defined in my Inport model:

public function items()
{
    return $this->hasMany(InportItem::class);
}

Observer Method

public function created(Inport $inport)
{
    dd($inport->load('items'));
}

Inport table

id
name

inport_items table

id
inport_id
number

Upvotes: 3

Views: 1022

Answers (3)

Jk33
Jk33

Reputation: 905

The Inport observer method is triggered as soon as you call $inport->save() or Inport::create([])

At this point, the inportItems have not been created yet. You probably do something like this on the next line: $inport->inportItems()->create([...])

So you need to:

  1. Create an InportObserver class with public $afterCommit = true
  2. Wrap your $inport->save() and your $inport->inportItems()->create([]) calls inside a DB::transaction. That way the parent observer method will be triggered AFTER the children have been created.

Upvotes: 1

mikey
mikey

Reputation: 1313

The observer doesn't see the relation, because it hasn't been created yet.

The hasMany relationship means that the InportItem class stores the id of your Inport model, and it can only store the id of your Inport model after it is created.

Your options:

  • Attempt using the afterCommit property on your observer (I'm not sure if this will work)
  • Use an observer for the created event on your InportItem model, instead of your Inport model (you may want to add a belongsTo on your InportItem linking it to Inport)

Upvotes: 1

rameezmeans
rameezmeans

Reputation: 850

you need to try

dd( $inport->items );

and your items() method should be like.

public function items()
{
    return $this->hasMany(InportItem::class, 'inport_id', 'id'); // where inport_id is your foreign key and id is your primary key in inport_items table
}

Upvotes: 1

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