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What are Relationships in Laravel? |
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Answer» Relationships in Laravel are a way to define RELATIONS between different models in the applications. It is the same as relations in RELATIONAL databases. Different relationships available in Laravel are:
Relationships are defined as a method on the model class. An example of One to One relation is shown below. <?phpnamespace App\Models;use Illuminate\Database\Eloquent\Model;class User extends Model{ /** * Get the phone associated with the user. */ public function phone() { return $this->hasOne(Phone::class); }}The above method phone on the User model can be called LIKE : `$user->phone` or `$user->phone()->where(...)->get()`. We can also define One to Many relationships like below: <?phpnamespace App\Models;use Illuminate\Database\Eloquent\Model;class User extends Model{ /** * Get the addresses for the User. */ public function addresses() { return $this->hasMany(Address::class); }}Since a user can have multiple addresses, we can define a One to Many relations between the User and Address model. Now if we call `$user->addresses`, eloquent will make the join between tables and it will return the result. |
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