Currently my database setup looks like this:
Users table (User model):
id,
email
Discounts table (Coupon model)
code
amount
Now, I decided to create a pivot table, where I will store a discount value for a user. One user will have a single discount value. For this, I created PractitionerVoucher model with this table setup:
voucher_id
practitioner_id
Upon creating a Coupon record, I save the coupon_id (voucher_id in this case) and the user_id (practitioner_id in this case) values to PractitionerVoucher table. Now, my question is, how do I get the User record from the Coupon model? For example:
$coupon = Coupon::first();
$coupon->practitioner;
I tried to create hasOneThrough relation on Coupon model, but no luck so far. This is what I tried:
public function practitioner(){
return $this->hasOneThrough(User::class, PractitionerVoucher::class, 'practitioner_id', 'id');
}
Using this relation, I get no query results for the User model. This is how my database records look like:
Coupons table
PractitionerVoucher table:
What am I doing wrong here? Any help is appreciated.
What you are trying to achieve can be easily done by adding a coupon_id column on users table and defining a One-to-Many relationship between User and Coupon model - there's no need for a pivot table.
On User model
public function discount()
{
return $this->belongsTo(Coupon::class, 'coupon_id');
}
On Coupon model
public function users()
{
return $this->hasMany(User::class);
}
Then you can use the relationship
$coupon = Coupon::with('users')->first();
$coupon->users;
Related
I have two migration tables and two models
1)User.
2)Subscription.
in subscriptions Model i write one method called user() which has hasMany relationship and in Users model it will contain subscriptions() method which have belongs() relationship.
in user table id acts as an primary key and in subscription table sub_id acts as a foriegn key,for example if the user subscribed to any subscription the user id will store in the sub_id in the subscription table upto this it's working fine.
$is_subscription=Subscription::where('sub_id',$user->id)->value('sub_id');
from the above code i am able to get the value but now what i want is is there any better way to write the query based on models ,please help me to write this one..
According to your descriptions, I believe this is what you have:
class User extends Model
{
public function subscriptions()
{
return $this->hasMany(Subscription::class);
}
}
class Subscription extends Model
{
public function user()
{
return $this->belongsTo(User::class);
}
}
So you want to check whether an user has any subscriptions. You can do one of the followings:
$user->subscriptions()->exists();
// Or
$user->subscriptions->isNotEmpty();
You can use pluck() method:
$is_subscription=Subscription::where('sub_id',$user->id)->pluck('sub_id');
You can find details on the methods that are available for collection using the Laravel Documentation
I have an understanding issue with Laravel Eloquent Models and relations.
I have a user table user. These users can add car license plates, which I save in user_plates. I have a database which contains car models and types. The table name is cars. I have the models App\User, App\UserPlates and App\Car.
The user_plates table has the fields id,plate,user_id,car_id.
I save the plate, the associated user (in user_id) and the selected car (car_id (id from table cars))
I added plates() with belongTo function to my User Model which already successfully returns all plates associated with that user. But now I want to get the associated car (car_id inside user_plates). How do I achieve this using Eloquent? The car table does not have any connection to the user table, only user_plates has a car_id and a user_id.
I need to achieve this:
User -> Plates (can be multiple) -> Plate -> Car. I know how to achieve this using simple MySQL Joins but I want to do it right with Eloquent. Thanks for any help!
Laravel: 6.4.0
So, if your database is set up as...
users user_plates cars
----- ----------- ----
id id id
etc. plate etc.
user_id
car_id
Your models are set up as...
// in model: User
public function user_plates()
return $this->hasMany('UserPlate'); // fill out fully qualified name as appropriate…
// in model: UserPlate
public function user()
return $this->belongsTo('User');
public function car()
return $this->belongsTo('Car');
// in model: Car
public function user_plates()
return $this->hasMany('UserPlate’);
To return a collection of cars belonging to user $id you should be able to run:
$cars = User::findOrFail($id)-> user_plates->pluck('car');
I have a question, How i can relate two table in model function?
I want to relate between table stores and orders but i can't relate them..
can you help me please?
this is my stores table
and this is my orders table
Update
This is my code
public function order()
{
return $this->belongsTo(Order::class,'id','store_id');
}
Hello i am trying to get one user with his relationships. So one user form user table could have many items, so relationship is one to many.
Booth model
public function booths() {
return $this->hasMany('App\Booth');
}
User model
public function users() {
return $this->belongsTo('App\User');
}
I set foreign key from Booths table user_id is connected with Id from User table.
I try this query
$booth =User::findOrFail(83)->booths()->get();
But get all users. Also tried with with() but in that case i get all booths.
Change your code to
$user = User::with('booths')->findOrFail(83);
I have three tables: users, items and user_items. A user has many items and a item belongs to many users.
The tables:
Users
id
username
password
Items
id
name
equipable
User_items
id
user_id
item_id
equipped
The models:
class User extends Eloquent {
public function items()
{
return $this->belongsToMany('Item', 'user_items')
->withPivot('equipped');
}
}
class Item extends Eloquent {
public function users()
{
return $this->belongsToMany('User', 'user_items');
}
}
In the pivot (user_items) table I've a very important column named "equipped".
I've a form where users can equip, unequip and throw items. This form has a hidden field with the pivot (user_items) table row id. So, when a user tries to equip an item, the system checks if the item is equipable.
So, I want a object with the pivot data and the item data, based on item_id from the pivot table, I can send to the handler (where all logic is handled).
So what I've to do is to first access the pivot table and then access the item table.
Something like this (does not work):
$item = User::find(1)->items->pivot->find(1);
Is this possible to do?
You first have to include 'equipable' on your pivot call:
return $this->belongsToMany('User', 'user_items')
->withPivot('equipable');
Then you can ask Eloquent if your item is equipable or not:
$item = User::with('items')->get()->find(1)->items->find(2)->pivot->equipable;
Keep two things in mind:
Eloquent uses 'items' as a key internally, so that might interfere.
Whatever method you put before "get()" is part of the db query. Everything after "get()" is handled by PHP on the Object. The latter will be slower in most cases.