1. Increments and Decrements
Article::find($article_id)->increment('read_count');
Article::find($article_id)->increment('read_count', 10); // +10
Product::find($produce_id)->decrement('stock'); // -1
2. XorY methods
findOrFail
$user = User::findOrFail($id);
firstOrCreate()
$user = User::firstOrCreate(['email' => $email]);
3.Model boot() method
public static function boot()
{
parent::boot();
static::saving(function ($model) {
// do some logging
// override some property like $model->something = transform($something);
});
static::updating(function($model)
{
// do some logging
// override some property like $model->something = transform($something);
});
static::deleting(function($model) {
// do some logging
// override some property like $model->something = transform($something);
});
}
4.Relationship with conditions and ordering
public function approvedUsers() {
return $this->hasMany('App\User')->where('approved', 1)->orderBy('email');
}
5.Model properties: timestamps, appends etc.
class User extends Model {
protected $connection = 'connection-name';
protected $table = 'users';
protected $guarded = 'user';
protected $fillable = ['email', 'password']; // which fields can be filled with User::create()
protected $dates = ['created_at', 'deleted_at']; // which fields will be Carbon-ized
protected $appends = ['field1', 'field2']; // additional values returned in JSON
protected $primaryKey = 'uuid'; // it doesn't have to be "id"
public $incrementing = false; // and it doesn't even have to be auto-incrementing!
protected $perPage = 25; // Yes, you can override pagination count PER MODEL (default 15)
const CREATED_AT = 'created_at';
const UPDATED_AT = 'updated_at'; // Yes, even those names can be overridden
public $timestamps = false; // or even not used at all
}
6. Find multiple entries
$users = User::find([1,2,3]);
7. WhereX
$users = User::whereApproved(1)->get();
User::whereDate('created_at', date('Y-m-d'));
User::whereDay('created_at', date('d'));
User::whereMonth('created_at', date('m'));
User::whereYear('created_at', date('Y'));
8. Load
public function show(Order $order){
$order = $order->load(['order_info', 'products:id,title','order_address' => function ($query){
$query->with('province', 'district', 'ward');
}]);
}
9. Eloquent::when() – no more if-else’s
$query->when(request('filter_by') == 'likes', function ($q) {
return $q->where('likes', '>', request('likes_amount', 0));
});
$query->when(request('filter_by') == 'date', function ($q) {
return $q->orderBy('created_at', request('ordering_rule', 'desc'));
});
10. BelongsTo Default Models
{{ $post->author->name ?? '' }} or {{ optional($post->author)->name }}
11. Order by Mutator
Trong model bạn thêm function:
function getFullNameAttribute()
{
return $this->attributes['first_name'] . ' ' . $this->attributes['last_name'];
}
Cách sắp xếp:
$clients = Client::get()->sortBy('full_name');
12. Default ordering in global scope
protected static function boot()
{
parent::boot();
// Order by name ASC
static::addGlobalScope('order', function (Builder $builder) {
$builder->orderBy('name', 'asc');
});
}
13. Raw query methods
// whereRaw
$orders = DB::table('orders')
->whereRaw('price > IF(state = "TX", ?, 100)', [200])
->get();
// havingRaw
Product::groupBy('category_id')->havingRaw('COUNT(*) > 1')->get();
// orderByRaw
User::where('created_at', '>', '2016-01-01')
->orderByRaw('(updated_at - created_at) desc')
->get();
14. Replicate: make a copy of a row
$task = Tasks::find(1);
$newTask = $task->replicate();
$newTask->save();
15.Chunk() method for big tables
User::chunk(100, function ($users) {
foreach ($users as $user) {
// ...
}
});
16.Create additional things when creating a model
php artisan make:model Company -mcr
- -m tương ứng là sẽ tao ra file migration
- -c tương ứng là sẽ tạo file Controller
- -r tương là sẽ biểu thị rằng Controller được tạo ra là Resource Controller
17.Override updated_at when saving
$product = Product::find($id);
$product->updated_at = '2019-01-01 10:00:00';
$product->save(['timestamps' => false]);
18.What is the result of an update()?
$result = $products->whereNull('category_id')->update(['category_id' => 2]);
19. Transform brackets into an Eloquent query
$q->where(function ($query) {
$query->where('gender', 'Male')
->where('age', '>=', 18);
})->orWhere(function($query) {
$query->where('gender', 'Female')
->where('age', '>=', 65);
})
20. orWhere with multiple parameters
$q->where('a', 1);
$q->orWhere(['b' => 2, 'c' => 3]);
21. Cache Database Queries
$questions = Question::remember(60)->get();
22. Forget Cache on Save
class Post extends Model
{
// Forget cache key on storing or updating
public static function boot()
{
parent::boot();
static::saved(function () {
Cache::forget('posts');
});
}
}
23. Reduce Memory
$orders = Order::toBase()->get();
24. Perform any action on failure
$model = Flight::where('legs', '>', 3)->firstOr(function () {
// ...
})
25. New way to define accessor and mutator
// Before, two-method approach
public function setTitleAttribute($value)
{
$this->attributes['title'] = strtolower($value);
}
public function getTitleAttribute($value)
{
return strtoupper($value);
}
// New approach
protected function title(): Attribute
{
return new Attribute(
get: fn ($value) => strtoupper($value),
set: fn ($value) => strtolower($value),
}
Chúc các bạn thành công !