• https://laravel.ru/docs/v5/releases
• http://laravel.su/docs/5.4
• https://laravel.com/docs/5.8
• ORM Eloquent
• 20 хитростей в Laravel Eloquent о которых вы не знали

$user= User::findOrFail($id);$user= User::firstOrCreate(['email'=>$email]);$user= User::find(1);$users= User::find([1,2,3]);

$media= Media::find($id);$categories= Category::lists('category','id');return view('medias.edit-media')->with('media',$media)->with('categories',$categories);

Game::whereIn('games.id',$roomList)->get();

Game::whereIn('id',$roomList)->pluck('id')->toArray();

Table::select('name','surname')->where('id',1)->get();

Game::select('games.id as id')->whereIn('games.id',$roomList)->get()->toArray();

Model::whereNotNull('sent_at'); 
DB::table('table_name')->whereNotNull('sent_at')->get();

$results= DB::table('table')->where(function($query)use($starttime,$endtime){$query->where('starttime','<=',$starttime);$query->where('endtime','>=',$endtime);})->orWhere(function($query)use($otherStarttime,$otherEndtime){$query->where('starttime','<=',$otherStarttime);$query->where('endtime','>=',$otherEndtime);})->orWhere(function($query)use($anotherStarttime,$anotherEndtime){$query->where('starttime','>=',$anotherStarttime);$query->where('endtime','<=',$anotherEndtime);})->get();

$sub= Abc::where(..)->groupBy(..);// Eloquent Builder instance 
$count= DB::table( DB::raw("({$sub->toSql()}) as sub")) 
    // ->where(..) wrong 
    ->mergeBindings($sub->getQuery())// you need to get underlying Query Builder 
    // ->where(..) correct 
    ->count();

DB::query()->fromSub(function($query){$query->from('abc')->groupBy('col1');},'a')->count();

$friend= Friend::updateOrCreate(['user_id'=>$friendId,'friend_id'=>$userId],['status'=> Friend::STATUS_ACCEPTED]);

# https://laravel.com/docs/5.3/eloquent#inserting-and-updating-models

YourModelName::where(['siteView'=>6])->update(['siteView'=>7]);
YourModelName::where('siteView',6)->update(['siteView'=>7]);
YourModelName::query()->update(['siteView'=>8]);

$room->games()->attach($gameId);$owner->rooms()->attach($room->id,['is_admin'=>true]);$user->roles()->updateExistingPivot($roleId,$attributes); 
$post->comments()->saveMany([new App\Comment(['message'=>'A new comment.']),new App\Comment(['message'=>'Another comment.']),]); 
$user->roles()->attach($roleId);$user->roles()->attach($roleId,[‘expires’ =>$expires]); 
App\User::find(1)->roles()->save($role,['expires'=>$expires]); 
$user->roles()->toggle([1,2,3]); 
$messages= Message::where('message_id',$id)->get();foreach($messagesas$message){$message->users()->updateExistingPivot($user,array('status'=>1),false);} 
$items=$invoice->items->pluck('name','id')->toArray();foreach($itemsas$key=>$item){$invoice->items()->updateExistingPivot($key,['quantity'=>$request->quantity]);} 
$user->rooms()->get()->contains($room->id)

$article= Article::find($article_id);$article->increment('read_count'); 
Article::find($article_id)->increment('read_count');
Article::find($article_id)->increment('read_count',10);// +10
Product::find($produce_id)->decrement('stock');// -1

$ids=array(10,20,30);
DB::table('table_name')->whereIn('id',$ids)->delete(); 
MyModel::truncate(); 
\App\Model::query()->delete(); 
DB::statement("SET foreign_key_checks=0");
Model::truncate();
DB::statement("SET foreign_key_checks=1"); 
DB::table('table_name')->truncate(); 
DB::table('table_name')->delete(); 
Model::whereRaw('1=1')->delete(); 
User:where('id','like''%%')->delete(); 
DB::table('users')->whereIn('id',$ids_to_delete)->delete();

app('db')->beginTransaction();
app('db')->commit();
app('db')->rollBack();