Querying Many to Many polymorphic relationship in laravel - php

Question

I've following tables:
contacts(id, name, email, phone_no),
events(id, title, start_date, end_date),
addresses(id, city, state, country, zip_code),
addressables(id, address_id, addressable_id, addressable_type)
Here addressables have many to many polymorphic relation for contacts events. addressables could also hold other polymorphic model class.
Addres Model
public function addressable()
{
return $this->morphTo();
}
Event/Contact Model
public function addresses()
{
return $this->morphToMany(Address::class, 'addressable');
}
I wanted to fetch addresses along with their associated models. I would appreciate if anyone could help me to
List addresses with associated models
List addresses for specific model type
List addresses group by model type
UPDATED
Expected Outcomes:
addresses
id | address
1 | New York, USA
2 | California, USA
3 | Nevada, USA
contacts
id | name
1 | Albert King
2 | Michelle Johnson
3 | Sujit Baniya
events
id | title
1 | Event 1
2 | Event 2
3 | Event 3
addressables
id | address_id | addressable_id | addressable_type
1 | 1 | 1 | Contact
2 | 2 | 1 | Event
3 | 3 | 2 | Contact
EXCEPTED RESULT for Address::with('addressables')
Address - ID 1
----Details (New York, USA)
----Contact (Albert King)
Address - ID 2
----Details (California, USA)
----Event (Event 1)
Address - ID 3
----Details (Nevada, USA)
----Contact (Michelle Johnson)
Thank you in advance!

Answer 1

According to Laravel's Documentation for many to many polymorphic relations,
you have to edit your address model and add methods for events and contacts like so:
//Get all the contacts that are assigned this address
public function contacts()
{
return $this->morphedByMany('App\Contact', 'addressable');
}
//Get all the events that are assigned this address
public function events()
{
return $this->morphedByMany('App\Event', 'addressable');
}
To answer your question
Then to get all addresses for a contact, you can use the addresses dynamic property like so:
$contact = App\Contact::find(1);
foreach ($contact->addresses as $address) {
//
}
And for events:
$event = App\Events::find(1);
foreach ($event->addresses as $address) {
//
}
Lastly, you can retrieve Address events, contacts like so:
$address = App\Address::find(1);
foreach ($address->events as $event) {
//
}
foreach ($address->contacts as $contact) {
//
}