How to search in another table in Laravel with Eloquent? - php

Question

I have two models:
Order
Customer
I have customer_id in orders table. Customer details (name, phone, email etc) in customerstable. But I am writing query for orders table.
Now, I want to search with Customer Name on Orders but in Orders table I just have customer_id.
How will I link up with customers table so that I can search with Customer Name. I want to do that with Eloquent.
How is this possible?

Answer 1

There are multiple ways of doing relationship filtering with Eloquent.
You can achieve it with whereHas or using an advanced join / left join query.
I suggest you do a research about Eloquent filtering on Laravel documentation, everything you need for your task should be there.
https://laravel.com/docs/8.x/eloquent-relationships#querying-relationship-existence
https://laravel.com/docs/8.x/queries#advanced-join-clauses

Answer 2

In models define relationships
Customer model
public function orders()
{
return $this->hasMany(Orders::class);
}
Order model
public function customer()
{
return $this->belongsTo(ustomer::class, 'foreign Key', 'id');
}
Then you can call relationships and search what you want
Customer::whereHas('orders')

Answer 3

First you need to create relationship in the orders model, you can use either belongsTo or hasOne relationship.
belongsTo relationship will be like as below
public function customer()
{
return $this->belongsTo(ustomer::class, 'foreign Key', 'id');
}
and the hasOne relationship will be like as below
public function customer()
{
return $this->hasOne(Customer::class, 'foreign_key', 'local_key');
}
The search function will be like as below
public function OrderSearch(Request $request){
try {
/**
* Fetching data with orders relationship
*/
$orders = OrdersModel::with(['customer'])
if(!empty($request->search)){
/**
* Searching the name key inside
* the customer relationship
*/
$orders->where(fn($query)=>
$query->whereHas('customer',fn($query2) =>
$query2->where('name','LIKE','%'.$request->search.'%'));
);
}
/**
* Returning the response
*/
return $orders->get();
} catch (\Throwable $th) {
throw $th;
}
}
Kindly refer the laravel eloquent-relationships documentation : eloquent-relationships