I have three table which is explained below
User
id
email
password
specialities
id
name
active
results
id
specialitie_id
user_id
result
color
i am trying to relate results with the rest of the 2 tables, but i don't know how to do it, below is my model relation, please correct me if there's any issue, i can't fetch the data due to having wrong relation
Result Model
class Result extends Model
{
use HasFactory;
protected $guarded = [];
public function user()
{
return $this->belongsTo(User::class);
}
public function speciality()
{
return $this->belongsTo(Speciality::class);
}
}
User Model
class User extends Authenticatable implements MustVerifyEmail
{
public function result()
{
return $this->hasMany(Result::class);
}
}
i am trying to expect a correct result of my relation database tables in laravel
Since the results table is Intermediate Table Columns.use laravel belongsToMany method so no need to create results model.Treat results table as pivot table.
In User Model add relation like below
public function specialities()
{
return $this->belongsToMany(Speciality::class,'results')->withPivot('result','color');
}
Also read here Many To Many Relationships
Related
I want to have two tables one for Employees and one for Companies, both Employees & Companies should be registered within the site, thus they should have records in the users table provided with Laravel. How should I structure the relationships between the models, should I go for polymorphic relationships or use one to one?
The answer is to add two columns to the "users" table: userable_id and userable_type. userable_id will be used to store the id of the row for the entity (Employee or Company), and the userable_type will hold the class path for the Eloquent model.
in create_users_table migration file add these two lines:
// ...
$table->integer('userable_id')->unsigned();
$table->string('userable_type');
// ...
in User.php model:
class User extends Model {
// Add this declaration.
public function userable()
{
return $this->morphTo();
}
}
in your Company.php model:
class Company extends Model
{
// Add this method.
public function user()
{
return $this->morphMany(User::class, 'userable');
}
}
in the Employee.php model do the same as above:
class Employee extends Model
{
// Add this method.
public function user()
{
return $this->morphMany(User::class, 'userable');
}
}
Now you should be able to access the user by running:
App\Company::all()->get(1)->user;
// or
App\Employee::all()->get(1)->user;
And access the entity with this one-liner:
App\User::all()->get(1)->userable;
I am not much familiar with eloquent orm in laravel
I have 3 tables they are
-- leads
|
Lead_appointments
and users table
since lead_appointments belongs to leads references id on leads by lead_id
the leads_appointments has a column called created_by with user's id in it
I am trying to query user's name and email along with the result as another column when query using eloquent
Lead Model
class Leads extends Model
{
public function appointments()
{
return $this->hasMany('App\Models\LeadsAppointments', 'lead_id');
}
}
My eloquent query in controller
return $this->lead->with('appointments')->find($id);
the result is like this
In under appointments i also want user email and name along with created by in it
But I couldn't figure it out
Add a relation to LeadAppointment model like this:
class LeadAppointment extends Model
{
public function users()
{
return $this->belongsTo('App\Models\User', 'created_by');
}
}
and change leads model like this:
class Leads extends Model
{
public function appointments()
{
return $this->hasMany('App\Models\LeadsAppointments', 'lead_id')->with('users');
}
}
I have an Order model and a Service model.
An order can be deleted (soft delete).
I want to list all orders, deleted and active and the service that it belongs to.
Order Model:
class Order extends Model
{
use SoftDeletes;
protected $dates = ['deleted_at'];
public function service ()
{
return $this->belongsTo('Service');
}
}
Service Model:
class Service extends Model
{
public function order()
{
return $this->belongsToMany('Order');
}
}
What I tried:
$company=Company::with('orders.service'=>function ($query) {
$query->withTrashed();
},'services'])->where('id',$company->id)->get();
But this returns no orders (and right now I only have 1 deleted order in my db)
Any ideas?
Thanks!!
you can use
public function order() {
return $this->belongsToMany('Order')->withTrashed();
}
First of all, a belongsToMany relationship always goes with another belongsToMany relationship at the other side, so you are not doing right the relationships.
If you want a many to many relationship, both models should have a belongsToMany relationship to the other model, and you must have a pivot table.
If you want a one to many relationship, one model should have a belongsTo relationship and the other a hasMany relationship.
I'm using Laravel as a REST API for a SPA. I have a relationship where families have multiple contributions. The contributions table has a foreign key reference to family's id. I can call on the contributions route with the hasMany/belongsTo set up, and every contribution gets the entire family model it belongs to. But I don't need all that data, I just need a single field from the family table (not the id, but a different field) with each contribution.
Here are my models and resource controller:
class Family extends Eloquent {
protected $table = 'families';
// relationships
public function contributions() {
return $this->hasMany('Contribution');
}
}
class Contribution extends Eloquent {
protected $table = 'contributions';
// relationships
public function family() {
return $this->belongsTo('Family');
}
public function other_field() {
return $this->belongsTo('Family')->select('other_field');
}
}
class ContributionController extends BaseController {
public function index()
{
// works - but returns the entire family with every contribution
$contributions = Contribution::with('family')->get();
// returns other_field == null with every contribution
$contributions = Contribution::with('other_field')->get();
return Response::json($contributions->toArray(),
200);
}
Where am I going wrong with selecting this single field from the belongsTo relationship?
You can use query constraints on the relationship if you use eager loading.
Family::with(['contributions', function($query)
{
$query->select('column');
}])->get();
I have below query in core php:
SELECT DISTINCT device_tocken FROM push_details JOIN users ON users.id=push_details.user_id
I have to integrate it in laravel 4
Application already have User extends Eloquent class
I created Push_details class as below
class Push_details extends Eloquent {
public $table = 'push_details';
public function User() {
return $this->hasMany('\User','id');
}
}
Table : users
Primary key : id
Table: push_details
Primary key: id
Foreign key: user_id belongsTo('users.id');
But i m not able to get expected result.
One more thing i didn't write anything in User's model yet.
Only way to join table is.. to join it, as Eloquent relations don't work using joins but separate queries with WHERE IN clauses. So this will do:
DB::table('push_details')
->select('device_tocken')
->distinct()
->join('users','users.id','=','push_details.user_id')
->get();
Above will return array of stdObject's so or if you need Eloquent Collection with Eloquent models as a result replace DB::table('push_details')->select... with PushDetails::select...
Now, correct your relations, as they are wrong:
// PushDetails model (as previously stated, I suggest renaming it to StudlyCase)
public function user() {
return $this->belongsTo('\User','user_id'); // user_id is may be omitted here
}
// User model
public function pushDetails() {
return $this->hasMany('\PushDetails','user_id'); // user_id is may be omitted here as well
}
In your User model, you need to link back to the PushDetails model, like so
class User extends Eloquent {
public function push_details() {
return $this->belongsTo('PushDetails');
}
}
Use CamelCase for Class names, because laravel has several functions, in which CamelCase are changed to snake_case
Change
public function User() {
return $this->hasMany('\User','id');
}
to
public function users() {
return $this->hasMany('User');
}
See the docs 'Eloquent ORM' for more...