SQLite Doesn't Support Dropping Foreign Keys in Laravel

Many times when you are working on SQLite database with Laravel you might have come across a wired error that SQLite doesn't support dropping foreign keys.

The reason is SQLite database has no concept called foreign keys. Let's fix this issue in Laravel.

---

Install Doctrine DBAL Package

To fix the DBAL issues make sure to install the following package.

composer require doctrine/dbal

---

Check if SQLite Driver is being Used

Before

Example 1

public function down()
{
    Schema::table('comments', function (Blueprint $table) {
        $table->dropForeign(['parent_id']);

        $table->dropColumn(['parent_id']);
    });
}

After (Driver conditional check)

Example 1

public function down()
{
    Schema::table('comments', function (Blueprint $table) {
        /** Make sure to put this condition to check if driver is SQLite */
        if (DB::getDriverName() !== 'sqlite') {
            $table->dropForeign(['parent_id']);
        }

        $table->dropColumn(['parent_id']);
    });
}

You can put this condition for multiple columns too.

Example 2

public function down()
{
    Schema::table('payments', function (Blueprint $table) {
        if (DB::getDriverName() !== 'sqlite') {
            $table->dropForeign(['coupon_id']);
            $table->dropForeign(['currency_id']);
        }


        $table->dropColumn(['status', 'currency_id', 'coupon_id', 'notes', 'invoice_number']);
    });
}

I hope this might have solved your issues. Happy coding.

Random Articles For You

PHP Built-In Web Server & Testing Your Development Project In Mobile Without Any Software

Why namespace And use Keywords Used In PHP

Multiple GIT Key Pairs Or Account In The Same Computer

Localization In Laravel REST API

Facebook Login With PHP Laravel Socialite

GitHub Login With PHP Laravel Socialite

Random Rows In Laravel

Why You Should Run Cronjobs In Laravel?

Create Gmail App Password For SMTP Mails

Use Different PHP Versions In Ubuntu / Linux

Hotlink Protection In Nginx

Lazy Load YouTube And Other Videos In Website

Testing Laravel Emails With MailHog

What Is Method Chaining In PHP?

File Upload In Laravel PHP