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 foreign key

$table->foreignId('user_id')
      ->constrained()
      ->onUpdate('cascade')
      ->onDelete('cascade');

Source: laravel.com

Similar codes

0 vote263 views1 answer
Trying to get property 'id' of non object in laravel api
PHP Laravel
0 vote253 views2 answers
How to download file in laravel 8 delelete from directry
PHP Laravel
0 vote298 views1 answer
Laravel job delay dispatch
PHP Laravel
2 votes225 views5 answers
Laravel db drop table
PHP Laravel
0 vote288 views1 answer
Data type for price in laravel
PHP Laravel
0 vote267 views1 answer
Laravel imap - Get message attachments
PHP Laravel
0 vote254 views1 answer
Create symbolic in lumen laravel
PHP Laravel
1 vote232 views1 answer
Laravel collection toJson
PHP Laravel
0 vote253 views1 answer
Create laravel project 8.16.1
PHP Laravel
-1 vote274 views1 answer
When to create a service in laravel
PHP Laravel