How to delete Foreign Key Laravel

"Learn how to delete foreign keys in Laravel with an example. See how to quickly and safely perform this operation."

Deleting a Foreign Key in Laravel

When building a database in Laravel, foreign keys are used to define relationships between tables. In some cases, it may be necessary to delete a foreign key in order to make changes to the structure of the database. Deleting a foreign key is a relatively simple process, but it requires a few steps to ensure that the foreign key is removed correctly.

The first step is to create a migration that will delete the foreign key from the database. To do this, use the

php artisan make:migration delete_foreign_key_name_table_name

command. This will create a new migration file that contains all of the necessary instructions for deleting the foreign key. In the up() method of the migration, you will need to add the following code:

Schema::table('table_name', function (Blueprint $table) {
    $table->dropForeign('foreign_key_name');
});

Once the migration has been created, run the migration with the

php artisan migrate

command. This will execute the instructions in the migration, which will delete the foreign key from the database.

Finally, you will need to delete the foreign key from your Eloquent model. To do this, open the model that is associated with the table that contains the foreign key and add the following line:

protected $foreignKey = null;

This will tell Eloquent to ignore the foreign key when performing queries. After this change is made, the foreign key will no longer be present in the database or in the Eloquent model.

Deleting a foreign key in Laravel is a relatively simple process, but it is important to follow the steps outlined above to ensure that the foreign key is removed correctly.