Foreign key laravel migration

Laravel foreign key

Schema::table('posts', function (Blueprint $table) {
    $table->unsignedBigInteger('user_id');

    $table->foreign('user_id')->references('id')->on('users');
});
OR
Schema::table('posts', function (Blueprint $table) {
    $table->foreignId('user_id')->constrained();
});

Make a forign key in migrations using laravel 8

$table->unsignedBigInteger('user_id');
$table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');

Foreign key laravel migration

$table->foreign('column_name')->references('id')->on('table_name')->onDelete('cascade');

Create foreign key laravel migration

Schema::table('posts', function (Blueprint $table) {
    $table->unsignedBigInteger('user_id');

    $table->foreign('user_id')->references('id')->on('users');
});

Laravel foreign key constraint

public function up()
{
    Schema::create('replies', function (Blueprint $table) {
        $table->bigIncrements('id');
        $table->text('body');
        $table->unsignedBigInteger('question_id');
        $table->integer('user_id')->unsigned();
        $table->foreign('question_id')->references('id')->on('questions')->onDelete('cascade');
        $table->timestamps();
    });
}

Source: stackoverflow.com

Laravel 8 foreign key migration

use Illuminate\Database\Schema\Blueprint;use Illuminate\Support\Facades\Schema;Schema::table('posts', function (Blueprint $table) {
    $table->unsignedBigInteger('user_id');

    $table->foreign('user_id')->references('id')->on('users');
});

Source: laravel.com

Similar codes

1 vote297 views1 answer
How to add an custom error to validater error in laravel
PHP Laravel
0 vote275 views1 answer
Connecting to database and performing sql queries
PHP
0 vote299 views1 answer
Macos how host laravel website on localhost and intranet wifi
PHP Laravel
0 vote247 views1 answer
Rule for radio button in laravel
PHP
0 vote244 views1 answer
Internal server error phpmyadmin
PHP
0 vote229 views1 answer
Get row ezSql | select on ezSql
PHP
0 vote241 views1 answer
Model find by certain column laravel
PHP
0 vote237 views1 answer
Php is_a
PHP
1 vote245 views2 answers
Class name laravel
PHP Laravel
1 vote253 views1 answer
Tackle discount in php laravel blade
PHP