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Morcos Gad
Morcos Gad

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Eloquent Tips and Tricks - Laravel

#php #laravel #webdev #database

I found this wonderful article https://laravel-news.com/eloquent-tips-tricks that contains a lot of tips, specifically 20 tips that will help you in your advice with dealing with databases and will make your next project more powerful and accurate, and I will talk about some points that interest me

  • Increments and Decrements 
// Instead of this $article = Article::find($article_id); $article->read_count++; $article->save(); // You can do this $article = Article::find($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
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  • Model boot() method 
public static function boot() { parent::boot(); self::creating(function ($model) { $model->uuid = (string)Uuid::generate(); }); }
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  • Model properties: timestamps, appends etc 
class User extends Model { protected $table = 'users'; 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
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  • WhereX 
$users = User::where('approved', 1)->get(); $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'));
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  • BelongsTo Default Models 
{{ $post->author->name ?? '' }} // we can assign default property values to that default model public function author() { return $this->belongsTo('App\Author')->withDefault([ 'name' => 'Guest Author' ]); }
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  • Order by Mutator 
// Imagine you have this function getFullNameAttribute() { return $this->attributes['first_name'] . ' ' . $this->attributes['last_name']; } $clients = Client::orderBy('full_name')->get(); // doesn't work $clients = Client::get()->sortBy('full_name'); // works!
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  • 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'); }); }
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  • 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();
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  • Chunk() method for big tables 
// Instead of $users = User::all(); foreach ($users as $user) { } // You can do User::chunk(100, function ($users) { foreach ($users as $user) { // ... } });
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  • Override updated_at when saving 
$product = Product::find($id); $product->updated_at = '2019-01-01 10:00:00'; $product->save(['timestamps' => false]);
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  • What is the result of an update() 
$result = $products->whereNull('category_id')->update(['category_id' => 2]);
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  • orWhere with multiple parameters 
// you can pass an array of parameters to orWhere() “Usual” way $q->where('a', 1); $q->orWhere('b', 2); $q->orWhere('c', 3); $q->where('a', 1); $q->orWhere(['b' => 2, 'c' => 3]);
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I tried to present some basic points, but to go deeper, visit the source.
I hope you enjoyed with me and I adore you who search for everything new.

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