BookStack/database/migrations/2021_03_08_215138_add_user_slug.php

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<?php
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;
use Illuminate\Support\Str;
class AddUserSlug extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::table('users', function (Blueprint $table) {
$table->string('slug', 180);
});
$slugMap = [];
DB::table('users')->cursor()->each(function ($user) use (&$slugMap) {
$userSlug = Str::slug($user->name);
while (isset($slugMap[$userSlug])) {
$userSlug = Str::slug($user->name . Str::random(4));
}
$slugMap[$userSlug] = true;
DB::table('users')
->where('id', $user->id)
->update(['slug' => $userSlug]);
});
Schema::table('users', function (Blueprint $table) {
$table->unique('slug');
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::table('users', function (Blueprint $table) {
$table->dropColumn('slug');
});
}
}