I have the models
class User extends Model
{
protected $connection = 'mysql';
public function areas()
{
return $this->belongsToMany(Area::class, 'user_areas');
}
}
class Area extends Model
{
protected $connection = 'oracle';
}
the user_areas table is searched on oracle, but this are on mysql.
How I can indicate the connection for the pivot table?
I found this partial solution and it has worked
class User extends Model
{
protected $connection = 'mysql'
public function areas()
{
$instance = new Area;
$instance->setConnection('mysql');
return new BelongsToMany($instance->newQuery(), $this, 'user_areas', 'user_id', 'area_id', 'areas');
}
}
Related
Why set connection does not work in nested relation?
Follower.php
class Follower extends Model {
$connection = 'followers';
public function details() {
return $this->belongsTo(User::class, 'user_id');
}
}
User.php
class User extends Model {
$connection = 'users';
protected $withCount = ['notifications'];
public function notifications() {
return $this->setConnection('followers')->hasMany('App\Models\Notifications');
}
}
and the query:
Follower::query()->where('user_id', 1)->with('details')->get();
and it throws :
SQLSTATE[42S02]: Base table or view not found: 1146 Table
'users.notifications' doesn't exist (SQL: select ` ....
But when I try this it works very well
User::with('notifications')->find(1);
Update
Notification.php
class Notification extends Model
{
protected $fillable = [
'user_id',
'builder',
'notification_type',
'comment_id',
'read_at'
];
}
This is a known issue with laravel since 2018, for more information see this thread , also there is a open pull request to fix this issue and will get fixed till next release
for now you can use hoyvoy/laravel-cross-database-subqueries package
install package using this
composer require hoyvoy/laravel-cross-database-subqueries
Follower.php
use Hoyvoy\CrossDatabase\Eloquent\Model;
class Follower extends Model {
$connection = 'followers';
public function details() {
return $this->belongsTo(User::class, 'user_id');
}
}
User.php
use Hoyvoy\CrossDatabase\Eloquent\Model;
class User extends Model {
$connection = 'users';
protected $withCount = ['notifications'];
public function notifications() {
return $this->setConnection('followers')->hasMany('App\Models\Notifications');
}
}
for every model you have add the default protected $connection
I'm quite new to Laravel and now I'm trying to move parts of a former application from a small self written framework into Laravel. The address book is multilingual therefor the table structure is a little more complicated.
db-structure
And this is my source code:
AddressBookController.php
namespace App\Http\Controllers;
use App\AddressBook as AB;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Validator;
class AddressBookController extends Controller
{
/**
* Display a listing of the resource.
*
* #return \Illuminate\Http\Response
*/
public function index()
{
$entries = AB::all();
return view('addressBook')->with([
'class' => __CLASS__,
'function' => __FUNCTION__,
'line' => __LINE__,
'entries' => $entries,
]);
}
}
Model AddressBook.php
namespace App;
use Illuminate\Database\Eloquent\Model;
class AddressBook extends Model
{
protected $table = 'address';
protected $primaryKey = 'address_id';
protected $keyType = 'int';
public $incrementing = true;
public $timestamps = false;
protected $searchable = [
'columns' => [
'address.address_surname' => 10,
'address.address_company' => 5,
'address.address_vatid' => 2,
],
];
public function country() {
return $this->hasOne('country', 'country_id', 'country_id');
}
public function addresstype() {
return $this->hasOne('addresstype', 'addresstype_id', 'addresstype_id');
}
}
Model Country.php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Country extends Model
{
protected $table = 'country';
protected $primaryKey = 'country_id';
protected $keyType = 'int';
public $incrementing = true;
public $timestamps = false;
public function translation() {
return $this->hasOne('translations', 'translations_id', 'translations_id');
}
public function addressbook() {
return $this->belongsTo('address', 'country_id', 'country_id');
}
}
Model AddressType
namespace App;
use Illuminate\Database\Eloquent\Model;
class AddressType extends Model
{
protected $table = 'addresstype';
protected $primaryKey = 'addresstype_id';
protected $keyType = 'int';
public $incrementing = true;
public $timestamps = false;
public function translation() {
return $this->hasOne('translations', 'translations_id', 'translations_id');
}
public function addressbook() {
return $this->belongsTo('address', 'addresstype_id', 'addresstype_id');
}
}
Model Translation.php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Translation extends Model
{
protected $table = 'translations';
protected $primaryKey = 'translations_id';
protected $keyType = 'int';
public $incrementing = true;
public $timestamps = false;
public function country() {
return $this->belongsTo('country', 'translations_id', 'translations_id');
}
public function addresstype() {
return $this->belongsTo('addresstype', 'translations_id', 'translations_id');
}
}
The request "$entries = AB::all();" works in general but I get the id's and maybe I'm completely wrong here but I thought that data from foreign keys will be replaced with the respective models (if configured correctly). so my question is:
a. did I make a mistake during configuration and if yes, where exactly is the error?
or
b. is my assumption of replacing id's with objects is completly wrong?
Thanks in advance!
Steve
Laravel Eloquent models do not replace the foreign keys of the active records with the relational data, it only appends a new property with the same name as the method relating the classes and in that property it puts all the Model instances of the resulted query, this ONLY if you access the property, its called Eager Loading.
It is explained here (Ofiicial Documentation)
$addressBook = App\AddressBook::find(1); //this only will return the active record with the id 1 and nothig more.
$addressBook->country; // The property "country" does not exist in the AddressBook Classs but eloquent models will return a "fake" property with the value of the result of the query by the method with the same name (only if the method returns an Eloquent Relation).
This Eloquent behavior is natural, and is a very clever way to minimize the number of queries, Eloquent will never load a relation if there is no need to.
If you want to load a relation in a set the models at the same time that those models are retriving from the db you need to explicitly especify wich relations you want to load.
$addressBook = App\AddressBook::with(['country', 'addresstype', 'anotherRelation'])->get(); // this will retrive all the addressBook models and in each one will attach the relations specified.
[EDITED]
Also you have to place the entire namespace of the related model class in the relation methods so you need to replaced like:
class Translation extends Model
{
protected $table = 'translations';
protected $primaryKey = 'translations_id';
protected $keyType = 'int';
public $incrementing = true;
public $timestamps = false;
// ****** You need to put the entire namespace of the Model class
public function country() {
return $this->belongsTo('App\Country', 'translations_id', 'translations_id');
}
We have the following class using $with:
class CargaHorasEmpleado extends Model
{
protected $table = "empleados_horas";
protected $with = ["tipoTarea", "proyecto", "empleado", "empleadoQueHizoLaCarga"];
public function tipoTarea()
{
return $this->belongsTo('App\TipoTarea', 'id_tipo_tarea', 'id')->withTrashed();
}
public function empleado()
{
return $this->belongsTo('App\Empleado', 'id_empleado', 'id')->withTrashed();
}
public function empleadoQueHizoLaCarga()
{
return $this->belongsTo('App\Empleado', 'id_empleado_cargo_hs', 'id')->withTrashed();
}
public function proyecto()
{
return $this->belongsTo('App\Proyecto', 'id_proyecto', 'id')->withTrashed();
}
}
This is the class TipoTarea
namespace App;
use Illuminate\Database\Eloquent\Model;
class TipoTarea extends Model
{
protected $table = 'tipos_tareas';
public $timestamps = false;
protected $fillable = [
'titulo', 'descripcion'
];
}
Thep page throws the error: "Call to undefined relationship [tipoTarea] on model [App\CargaHorasEmpleado]". That's the only relationship that's not working. The others are fine. What's wrong?
Well, isn't the relationship called "tipoTarea"? You wrote "tiposTarea"
The problem was that my class "TipoTarea" didn't use softdeletes. So the error was in using the "WithTrashed" method. The correct way is:
public function tipoTarea()
{
return $this->belongsTo('App\TipoTarea', 'id_tipo_tarea', 'id');
}
I'm facing a problem, as to why the relation is not getting connected.
vendor.php
class Vendor extends Model
{
public function internets()
{
return $this->hasMany('App\Internet');
}
}
internets.php
class Internet extends Model
{
protected $with=['vendor','coba'];
public function vendor()
{
return $this->belongTo('App\Vendor');
}
}
any one can help me?
it will be belongsTo
return $this->belongsTo('App\Vendor');
Try something like this
In your vendor
class Vendor extends Model
{
protected $table = 'Vendor Table Name';
protected $primarykey = 'Your Vendor Table primary Key';
public function internets()
{
return $this->hasMany(App\Internet::class, 'relational key');
}
}
And In your internet
class Internet extends Model
{
protected $with=['vendor','coba'];
protected $table = 'Internet Table Name';
protected $primarykey = 'Internet table primary key';
public function vendor()
{
return $this->belongsTo(App\Vendor::class, 'relation key');
}
}
I hope this will solve your problem let me know if this do the trick
I would like to do something like this.
Location::where('city', '=', 'Chicago')->chef();
With these relationships:
class Location extends Eloquent {
protected $table = 'locations';
public function chef() {
return $this->belongsTo('Chef');
}
}
class Chef extends Eloquent {
protected $table = 'chefs';
public function location() {
return $this->hasMany('Location');
}
}
This should work:
class Location extends Eloquent {
protected $table = 'locations';
public function chefs() {
return $this->belongsTo('Chef');
}
public function getAllChefsByCity($city)
{
$this->with('chefs')->where('city', $city)->get();
}
}
Then in your code:
$array = $location->getAllChefsByCity('Chicago');