Accessors And Mutators In PHP Laravel

Accessors and mutators allow you to modify Eloquent attribute values when you fetch or set them on model instances.

For Eg: If you would like to transform or manipulate data before storing or while fetching from the database tables than you can you Mutators and Accessors respectively.

NOTE: Accessors & Mutators only works on eloquent models.

---

Accessors (Will start with get)

The accessor will be called automatically by Eloquent when attempting to retrieve the value of the attribute.

To define an accessor, create a getFooAttribute method on your model where Foo is the "studly" cased (meaning every word first letter will be capital, Eg: first_name of table column will become FirstName) name of the column you wish to access.

Eg: I want to add accessor to capitalize the first_name column of my table while fetching from the table then we need to create getFirstNameAttribute() method in our model

<?php
namespace App;
use Illuminate\Database\Eloquent\Model;

class User extends Model
{
  public function getFirstNameAttribute($firstName)
  {
    return ucfirst($firstName);
  }
}

Example

/** Here in table my name was saved like channaveer */
$user = User::find(1);

/** By using model first_name Laravel will automatically use accessor and manipulate the data before presenting you */
$user->first_name; /** Now the first_name will be Channaveer */

Return New Computed Values

public function getFullNameAttribute()
{
  return $this->first_name . ' ' . $last_name;
}

---

Mutator (Will start with set)

The Mutators will be called automatically by Eloquent when you want to store any value of the attribute in the database table.

To define a mutator, define a setFooAttribute method on your model where Foo is the "studly" (meaning every word first letter will be capital, Eg: first_name of table column will become FirstName) cased name of the column you wish to write.

Eg: I want to add a mutator to lowercase the first_name column of my table while storing to table then we need to create setFirstNameAttribute() method in our model.

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class User extends Model
{
  public function setFirstNameAttribute($firstName)
  {
    $this->attributes['first_name'] = strtolower($firstName);
  }
}

---

Conclusion

Hopefully, you will start implementing in your project and take advantage of it.

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