[FIXED] Laravel - Multiple Arrays for Multiple Recipients (Mailable/Notifications)

Issue

I'm looking for advice for a project and an interesting predicament I've put myself in.

I have multiple fields in my shipment model, they are:

• shipto_id
• shipfrom_id
• billto_id

They all link (through different relationships) to my customer model:

public function billtoAccount()
{
    return $this->belongsTo('App\Customer', 'bill_to');
}

public function shiptoAccount()
{
    return $this->belongsTo('App\Customer', 'ship_to');
}

public function shipfromAccount()
{
    return $this->belongsTo('App\Customer', 'ship_from');
}

and these customers (in reality would likely be better described as customer accounts (these are NOT USER ACCOUNTS, they're more just like a profile for each company that business is done with)) can have a multitude of users associated with them.

 public function users()
{
    return $this->belongsToMany(User::class);
}

Now, while I know how to send off mailables and notifications, I was curious to know how I would go about sending off those to multiple user's emails. So let me describe the following: Something is created and the following customers (and in turn, their users) are referenced.

• (billto_id) - Customer Account 1 - User 1 (email1@example.com)
• (shipto_id) - Customer Account 2 - User 2 (email2@example.com) & User 3 (email3@example.com)
• (shipfrom_id) - Customer Account 37 - User 6 (email4@example.com)

Now, how would I go about moving the emails of the users over to an array of emails to have a notification or mailable sent to them?

So it should pop out: email1@example.com, email2@example.com, email3@example.com, email4@examples.com

Solution

Elaborating on @Devon 's comment: This is business logic. You could have a method on your Shipment model that returns the customer instances to be notified as an array, e.g. getNotifiables() : array

Then in your Customer model you may use the Notifiable trait

use Illuminate\Notifications\Notifiable;

And looping over your Notifiables, i.e. Customers

$notification = new ShipmentWasCreated()
foreach ($shipment->getNotifiables() as $notifiable) {
    $notifiable->notify($notification);
}

Answered By - macghriogair