Seeding database - [ErrorException] Trying to get property of non-object - php

Question

I am using "zizaco/confide": "~4.0#dev" and "zizaco/entrust": "1.2.*#dev".
I have set everything up as described in the two tutorials(confide migrations). Furthermore, I have created the following models:
User:
<?php
use Zizaco\Confide\ConfideUser;
use Zizaco\Confide\Confide;
use Zizaco\Confide\ConfideEloquentRepository;
use Zizaco\Entrust\HasRole;
use Carbon\Carbon;
use Illuminate\Auth\UserInterface;
use Illuminate\Auth\Reminders\RemindableInterface;
class User extends Eloquent implements UserInterface, RemindableInterface{
use ConfideUser;
use HasRole;
/**
* Get user by username
* #param $username
* #return mixed
*/
public function getUserByUsername( $username )
{
return $this->where('username', '=', $username)->first();
}
public function joined()
{
return String::date(Carbon::createFromFormat('Y-n-j G:i:s', $this->created_at));
}
public function saveRoles($inputRoles)
{
if(! empty($inputRoles)) {
$this->roles()->sync($inputRoles);
} else {
$this->roles()->detach();
}
}
public function currentRoleIds()
{
$roles = $this->roles;
$roleIds = false;
if( !empty( $roles ) ) {
$roleIds = array();
foreach( $roles as &$role )
{
$roleIds[] = $role->id;
}
}
return $roleIds;
}
public static function checkAuthAndRedirect($redirect, $ifValid=false)
{
// Get the user information
$user = Auth::user();
$redirectTo = false;
if(empty($user->id) && ! $ifValid) // Not logged in redirect, set session.
{
Session::put('loginRedirect', $redirect);
$redirectTo = Redirect::to('user/login')
->with( 'notice', Lang::get('user/user.login_first') );
}
elseif(!empty($user->id) && $ifValid) // Valid user, we want to redirect.
{
$redirectTo = Redirect::to($redirect);
}
return array($user, $redirectTo);
}
public function currentUser()
{
return (new Confide(new ConfideEloquentRepository()))->user();
}
public function getReminderEmail()
{
return $this->email;
}
}
Role:
<?php
use Zizaco\Entrust\EntrustRole;
class Role extends EntrustRole {
public function validateRoles( array $roles )
{
$user = Confide::user();
$roleValidation = new stdClass();
foreach( $roles as $role )
{
// Make sure theres a valid user, then check role.
$roleValidation->$role = ( empty($user) ? false : $user->hasRole($role) );
}
return $roleValidation;
}
}
Permission:
<?php
use Zizaco\Entrust\EntrustPermission;
class Permission extends EntrustPermission
{
public function preparePermissionsForDisplay($permissions)
{
// Get all the available permissions
$availablePermissions = $this->all()->toArray();
foreach($permissions as &$permission) {
array_walk($availablePermissions, function(&$value) use(&$permission){
if($permission->name == $value['name']) {
$value['checked'] = true;
}
});
}
return $availablePermissions;
}
/**
* Convert from input array to savable array.
* #param $permissions
* #return array
*/
public function preparePermissionsForSave( $permissions )
{
$availablePermissions = $this->all()->toArray();
$preparedPermissions = array();
foreach( $permissions as $permission => $value )
{
// If checkbox is selected
if( $value == '1' )
{
// If permission exists
array_walk($availablePermissions, function(&$value) use($permission, &$preparedPermissions){
if($permission == (int)$value['id']) {
$preparedPermissions[] = $permission;
}
});
}
}
return $preparedPermissions;
}
}
Furthermore, I would like to seed my database in the beginning with values, therefore I created several seeders for user, role and permission. However, I get an error in my permission seeder:
UserTableSeeder:
<?php
class UsersTableSeeder extends Seeder {
public function run()
{
DB::table('users')->delete();
$users = array(
array(
'username' => 'admin',
'email' => 'admin#example.org',
'password' => Hash::make('admin'),
'confirmed' => 1,
'confirmation_code' => md5(microtime().Config::get('app.key')),
'created_at' => new DateTime,
'updated_at' => new DateTime,
),
array(
'username' => 'moderator',
'email' => 'moderator#example.org',
'password' => Hash::make('moderator'),
'confirmed' => 1,
'confirmation_code' => md5(microtime().Config::get('app.key')),
'created_at' => new DateTime,
'updated_at' => new DateTime,
),
array(
'username' => 'user',
'email' => 'user#example.org',
'password' => Hash::make('user'),
'confirmed' => 1,
'confirmation_code' => md5(microtime().Config::get('app.key')),
'created_at' => new DateTime,
'updated_at' => new DateTime,
)
);
DB::table('users')->insert( $users );
}
}
RolesTableSeeder:
<?php
class RolesTableSeeder extends Seeder {
public function run()
{
DB::table('roles')->delete();
$adminRole = new Role;
$adminRole->name = 'adminRole';
$adminRole->save();
$standRole = new Role;
$standRole->name = 'userRole';
$standRole->save();
$modRole = new Role;
$modRole->name = 'modRole';
$modRole->save();
$user = User::where('username','=','admin')->first();
$user->attachRole( $adminRole );
$user = User::where('username','=','user')->first();
$user->attachRole( $standRole );
$user = User::where('username','=','moderator')->first();
$user->attachRole( $modRole );
}
}
PermissionsTableSeeder:
<?php
class PermissionsTableSeeder extends Seeder {
public function run()
{
DB::table('permissions')->delete();
$permissions = array(
array( // 1
'name' => 'manage_users',
'display_name' => 'manage users'
),
array( // 2
'name' => 'manage_roles',
'display_name' => 'manage roles'
),
array( // 3
'name' => 'standart_user_role',
'display_name' => 'standart_user_role'
),
);
DB::table('permissions')->insert( $permissions );
DB::table('permission_role')->delete();
$role_id_admin = Role::where('name', '=', 'admin')->first()->id;
$role_id_mod = Role::where('name', '=', 'moderator')->first()->id;
$role_id_stand = Role::where('name', '=', 'user')->first()->id;
$permission_base = (int)DB::table('permissions')->first()->id - 1;
$permissions = array(
array(
'role_id' => $role_id_admin,
'permission_id' => $permission_base + 1
),
array(
'role_id' => $role_id_admin,
'permission_id' => $permission_base + 2
),
array(
'role_id' => $role_id_mod,
'permission_id' => $permission_base + 1
),
array(
'role_id' => $role_id_mod,
'permission_id' => $permission_base + 3
),
array(
'role_id' => $role_id_stand,
'permission_id' => $permission_base + 3
),
);
DB::table('permission_role')->insert( $permissions );
}
}
This is the error I get when running db:seed:
$ php artisan db:seed
**************************************
* Application In Production! *
**************************************
Do you really wish to run this command? Y
Seeded: UsersTableSeeder
Seeded: RolesTableSeeder
[ErrorException]
Trying to get property of non-object
db:seed [--class[="..."]] [--database[="..."]] [--force]
Any recommendations what I am doing wrong in my seeding?
I appreciate your answers!

Answer 1

I think the problem is with:
$role_id_admin = Role::where('name', '=', 'admin')->first()->id;
$role_id_mod = Role::where('name', '=', 'moderator')->first()->id;
$role_id_stand = Role::where('name', '=', 'user')->first()->id;
You want to get id but such records don't exists so you get the error. There are probably no records with admin, moderator or user name because looking at RolesTableSeeder you create roles this way:
$adminRole = new Role;
$adminRole->name = 'adminRole';
$adminRole->save();
$standRole = new Role;
$standRole->name = 'userRole';
$standRole->save();
$modRole = new Role;
$modRole->name = 'modRole';
$modRole->save();
with names adminRole, userRole, modRole. So either change the names inside RolesTableSeeder or change them in PermissionsTableSeeder