Convert SQL request onto Eloquent - laravel-5

Question

I would like to use Eloquent in a CRUD. This CRUD uses several datas from 4 tables.
admins :
Schema::create('admins', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->string('surname');
$table->string('email')->unique();
$table->string('password');
$table->rememberToken();
$table->timestamps();
$table->softDeletes();
});
langs :
Schema::create('langs', function (Blueprint $table) {
$table->increments('id');
$table->string('isocode', 10)->nullable();
$table->string('name', 80)->nullable();
$table->timestamps();
});
lang_sector:
Schema::create('lang_sector', function (Blueprint $table) {
$table->integer('lang_id')->index('FK_LANGS');
$table->integer('sector_id')->index('FK_SECTORS');
$table->integer('admin_id')->index('FK_ADMINS');
$table->string('name', 80)->nullable();
$table->string('shortname', 40)->nullable();
$table->text('description', 65535)->nullable();
$table->primary(['lang_id','sector_id']);
});
sectors:
Schema::create('sectors', function (Blueprint $table) {
$table->increments('id');
$table->timestamps();
$table->softDeletes();
});
And setup relations in the model :
A sector belong to one Admin
An Admin has many Sector
Sector belong to many language
Lang belong to many Sector
in sector model :
public function langs(){
return $this->belongsToMany('App\Lang')->withPivot('name','shortname','description');
}
public function Admin(){
return $this->belongsTo('App\Admin');
}
In lang model :
public function sectors(){
return $this->belongsToMany('App\Sector')->withPivot('name','shortname','description');
}
In Admin model
public function sectors(){
return $this->hasMany('App\Sector');
}
The information I'd like to display can be represented with this SQL request (updated version) :
SELECT DISTINCT
sectors.id,
lang_sector.sector_id,
lang_sector.lang_id,
lang_sector.admin_id,
langs.name,
lang_sector.name,
lang_sector.shortname,
admins.name,
admins.surname,
sectors.created_at,
sectors.updated_at
FROM lang_sector
INNER JOIN
langs ON langs.id = lang_sector.lang_id
INNER JOIN
sectors ON sectors.id = lang_sectors.sector_id
INNER JOIN
admins ON admins.id = lang_sector.admin_id
ORDER BY lang_sector.sector_id;
My questions are :
how to "translate" it in Eloquent and not in RAW SQL ...( $langs = Lang::latest('updated_at')->get();...)
My other issue is that I want to have the logged admin as value...
Thanks for your help !

Answer 1

Thanks to fubar I began to look DB Query builder ...
$sector = DB::table('lang_sector')
->join('langs', 'langs.id', '=', 'lang_sector.lang_id')
->join('sectors', 'sectors.id', '=', 'lang_sector.sector_id')
->join('admins', 'admins.id', '=', 'lang_sector.admin_id')
->select('sectors.id', 'lang_sector.sector_id', 'lang_sector.lang_id', 'lang_sector.admin_id', 'langs.name', 'lang_sector.name', 'lang_sector.shortname', 'admins.name', 'admins.surname', 'sectors.created_at', 'sectors.updated_at')
->distinct()
->orderByRaw('lang_sector.sector_id')
->get();
return view('admin.sectors',compact('sector'));
I check in the view :
{{ dd('sector') }}
As a result I obtain a collection ... Unfortunatelly I have an issue when I want to display the results :
The request is correct but my collection don't display all required information :
Collection {#480 ▼
#items: array:6 [▼
0 => {#380 ▼
+"id": 1
+"sector_id": 1
+"lang_id": 1
+"admin_id": 1
+"name": "Vera"
+"shortname": "TIC"
+"surname": "David"
+"created_at": null
+"updated_at": null
}
1 => {#487 ▶}
2 => {#485 ▶}
3 => {#386 ▶}
4 => {#383 ▶}
5 => {#488 ▶}
]
}
I will rename the different fields of the database in order to make each one unique ...