eloquent

问题 How do I create a new instance of an eloquent model with relationships. This is what I am trying: $user = new User(); $user->name = 'Test Name'; $user->friends()->attach(1); $user->save(); But I get Call to undefined method Illuminate\Database\Query\Builder::attach() 回答1: Try to attach friend after save since the attach() method needs an ID to exist on the parent model. ID's aren't (usually) generated until model is saved (when a primary key or other identifier for that model is created in

问题 I couldn't find it online, but does Eloquent ORM take care of SQL injection like PDO prepared statements do? 回答1: As per your question all the eloquent queries are taken care of for SQL injection, because they use the PDO driver in core. So you don't have to worry, but the input are stored as they are so you might want to sanitize as per your application's needs (HTML formatting, etc.) 回答2: No framework "takes care of" SQL injection. You take care of SQL injection. A framework may provide

问题 I've a fetch a Laravel Eloquent collection by: $product = Product::query()->with(['merchant', 'picture'])->where('id', $id)->first(); and get the dump of $product is Product { #casts: ... #dates: ... #connection: "mysql" #table: null #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] #perPage: 15 +exists: true +wasRecentlyCreated: false #attributes: array:1 [ "id" => 27 ] #original: ... #changes: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables:

问题 <?php // Model class ProfileDelivery extends \Eloquent { protected $table = 'profile_delivery'; protected $guarded = array(); public $timestamps = FALSE; } // Somewhere $deliveryGuy->id = 1; print $deliveryGuy->id; // Prints 1 if (!$deliveryGuy->save()) { throw new \Exception('Cant save .'); } print $deliveryGuy->id; // Prints 0 Can anyone explain me why the ID value is lost? 回答1: Not sure if you solved this for your situation but in Laravel 5.1 this just happened to me - the primary key of

问题 <?php // Model class ProfileDelivery extends \Eloquent { protected $table = 'profile_delivery'; protected $guarded = array(); public $timestamps = FALSE; } // Somewhere $deliveryGuy->id = 1; print $deliveryGuy->id; // Prints 1 if (!$deliveryGuy->save()) { throw new \Exception('Cant save .'); } print $deliveryGuy->id; // Prints 0 Can anyone explain me why the ID value is lost? 回答1: Not sure if you solved this for your situation but in Laravel 5.1 this just happened to me - the primary key of

问题 <?php // Model class ProfileDelivery extends \Eloquent { protected $table = 'profile_delivery'; protected $guarded = array(); public $timestamps = FALSE; } // Somewhere $deliveryGuy->id = 1; print $deliveryGuy->id; // Prints 1 if (!$deliveryGuy->save()) { throw new \Exception('Cant save .'); } print $deliveryGuy->id; // Prints 0 Can anyone explain me why the ID value is lost? 回答1: Not sure if you solved this for your situation but in Laravel 5.1 this just happened to me - the primary key of

问题 I was looking through Laravel's source code and I've found a lot of SQL operators for Eloquent and I was wondering what are some of them and how can they be used. I haven't managed to find any documentation unfortunately. Here's the operators I've found in vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php : protected $operators = [ '=', '<', '>', '<=', '>=', '<>', '!=', 'like', 'like binary', 'not like', 'between', 'ilike', '&', '|', '^', '<<', '>>', 'rlike', 'regexp', 'not

问题 Is possibile to use inheritance in laravel model? I explain: is possible to exend a model, which extends eloquent class? class A extends Eloquent { } class B extends A { } A e B are also 2 different tables and B has A_id as foreignkey and other fields. How could be the constructor of class B? is it a ragionable solution or better use hasOne relationship? no every A object are also B object. Es. user and teacher Thank you 回答1: I’m having difficulty understanding your supplementary details, but

问题 How would I pluck an eager loading content while querying with Laravel 5.4? I tried this way: $something = Something::with(array('something_else' => function($query){ $query->pluck('field'); }))->first(); And $query->select('field') too, but without luck. Is this possible in Laravel 5.4? 回答1: You wouldn't be able to use pluck on the query but you can use select if you want to limit the fields returned with eager loading. You just need to make sure you include the id so that Eloquent can match

问题 I'm implementing a search bar that can search customers by first name, last name, or both. So, for example, Mike Hizer would be matched by Mike , Hizer , zer , Mike Hizer , etc. Here's what I came up with: Customer::where( DB::raw('concat(first_name," ",last_name)'), 'like', "%{$request->search}%" )->get() It works. But is there a more Eloquent approach to combine these two columns ( first_name and last_name ) without resorting to the DB facade? Would something like ->where(['first_name',