php Laravel Eloquent Tips
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<?php
// ======= Increments and Decrements ========
// Instead of:
$article = Article::find($article_id);
$article->read_count++;
$article->save();
// Do:
$article = Article::find($article_id);
$article->increment('read_count');
// Also:
Article::find($article_id)->increment('read_count');
Article::find($article_id)->increment('read_count', 10); // +10
Product::find($produce_id)->decrement('stock'); // -1
// ============ XorY methods =============
// Instead of :
$user = User::find($id);
if (!$user) { abort (404); }
// Do:
$user = User::findOrFail($id);
// Instead of:
$user = User::where('email', $email)->first();
if (!$user) {
User::create([
'email' => $email
]);
}
// Do:
$user = User::firstOrCreate(['email' => $email]);
// ======= Model Relationships ========
// Regular Relationships:
public function users() {
return $this->hasMany('App\User');
}
// You can also do this:
public function approvedUsers() {
return $this->hasMany('App\User')->where('approved', 1)->orderBy('email');
}
// ====== Find, Where ========
// We can find a resource with:
$user = User::find(1);
// But we can also find multiple users:
$users = User::find([1,2,3]);
// Turn :
$users = User::where('approved', 1)->get();
// Into:
$users = User::whereApproved(1)->get();
// Predefined Eloquent date/times:
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'));
// ======= 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();
// ======== Replicate rows =======
// make a copy of database entry
$task = Tasks::find(1);
$newTask = $task->replicate();
$newTask->save();
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