BookStack/database/migrations/2017_08_01_130541_create_comments_table.php

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<?php
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateCommentsTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('comments', function (Blueprint $table) {
$table->increments('id')->unsigned();
$table->integer('entity_id')->unsigned();
$table->string('entity_type');
$table->longText('text')->nullable();
$table->longText('html')->nullable();
$table->integer('parent_id')->unsigned()->nullable();
$table->integer('local_id')->unsigned()->nullable();
$table->integer('created_by')->unsigned();
$table->integer('updated_by')->unsigned()->nullable();
$table->timestamps();
$table->index(['entity_id', 'entity_type']);
$table->index(['local_id']);
// Assign new comment permissions to admin role
$adminRoleId = DB::table('roles')->where('system_name', '=', 'admin')->first()->id;
// Create & attach new entity permissions
$ops = ['Create All', 'Create Own', 'Update All', 'Update Own', 'Delete All', 'Delete Own'];
$entity = 'Comment';
foreach ($ops as $op) {
$permissionId = DB::table('role_permissions')->insertGetId([
'name' => strtolower($entity) . '-' . strtolower(str_replace(' ', '-', $op)),
'display_name' => $op . ' ' . $entity . 's',
'created_at' => \Carbon\Carbon::now()->toDateTimeString(),
'updated_at' => \Carbon\Carbon::now()->toDateTimeString()
]);
DB::table('permission_role')->insert([
'role_id' => $adminRoleId,
'permission_id' => $permissionId
]);
}
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::dropIfExists('comments');
// Delete comment role permissions
$ops = ['Create All', 'Create Own', 'Update All', 'Update Own', 'Delete All', 'Delete Own'];
$entity = 'Comment';
foreach ($ops as $op) {
$permName = strtolower($entity) . '-' . strtolower(str_replace(' ', '-', $op));
DB::table('role_permissions')->where('name', '=', $permName)->delete();
}
}
}