/PHP/Laravel/Laravel foreign key constraint

Laravel foreign key constraint

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();
});

Foreign key in laravel migration

$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

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

Source: laravel.com

Similar codes

0 vote240 views1 answer
Laravel lang with parameter
PHP Laravel
13 votes243 views5 answers
Laravel validation custom message example
PHP Laravel
0 vote255 views1 answer
How to get private images in s3 laravel
PHP Laravel
0 vote266 views2 answers
Laravel log could not be opened fix
PHP Laravel
1 vote258 views1 answer
How to return data in json format in laravel
PHP Laravel
7 votes273 views3 answers
How to remove public from url in laravel 8
PHP Laravel
1 vote247 views1 answer
Use model from variable laravel
PHP Laravel
2 votes245 views3 answers
Where is in array laravel
PHP Laravel
0 vote237 views1 answer
String length laravel validation
PHP Laravel
6 votes283 views3 answers
Laravel bootstrap auth scaffolding
PHP Laravel