Laravel 8 foreign key

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');

Laravel before migration

Schema::table('users', function ($table) {
    $table->string('email')->after('id')->nullable();
});

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

Laravel 8 foreign key

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

Source: laravel.com

Similar codes

3 votes324 views1 answer
Execute function php
PHP
22 votes292 views4 answers
Php secure password hash
PHP
1 vote305 views1 answer
Laravel difference between fill and update
PHP
1 vote287 views1 answer
Search on taxonomy wordpress query
PHP
1 vote323 views1 answer
PHP Warning: file_get_contents(): SSL operation failed with code 1. OpenSSL Error messages:
PHP
13 votes296 views6 answers
Php new line
PHP
0 vote287 views1 answer
Change php version in vagrant
PHP
0 vote252 views2 answers
Adminlte in laravel 8
PHP
12 votes305 views6 answers
Clear session php
PHP
5 votes297 views1 answer
A non well formed numeric value encountered
PHP