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

2 votes165 views3 answers
Call stored procedure in laravel
PHP Laravel
2 votes107 views1 answer
Add Laravel .env variable to Vue component
PHP
2 votes138 views2 answers
Update laravel 7 to 8
PHP Laravel
30 votes118 views3 answers
Random key generator php
PHP
4 votes227 views6 answers
Laravel jwt
PHP
0 vote117 views1 answer
Get chmod of directory php
PHP
0 vote86 views0 answer
PHP
2 votes139 views2 answers
Php split array in half
PHP
0 vote129 views2 answers
Laravel apiresource
PHP
17 votes133 views3 answers
Laravel order by desc
PHP Laravel