How to group orders by different cities using Laravel, MySql, JSON - mysql

Question

Trying to build a report result of orders related information of a laravel project. But struggling to find out a solution on a specific data structure.
My Request :
// Date Ranges
$fromDate = $this->request->fromDate;
$toDate = $this->request->toDate;
So the result should be within a date range.
My orders table :
order_id order_addresses grand_total
------------------------------------------
1 JSON DATA 3,000.00
2 JSON DATA 2,000.00
3 JSON DATA 1,500.00
So My JSON DATA looks like this :
{
"delivery_address":{
"House":"Offline House",
"Street":"Offline Road",
"Area":"Offline Area",
"PostCode":"1230",
"City":"City1",
"Country":"Country1",
"ContactPerson":"Offline User",
"ContactNumber":"01XXXXXXXX"
}
}
I just want the response as :
{
"orders": 3, // How many orders are there in that particular city
"totals": "5,500.00", // Total how much the cost of orders in that city
"groupby": "City1",
},
{
"orders": 5,
"totals": "7,500.00",
"groupby": "City2",
},
...,
...
I am seeking a solution using query builder in laravel with MySQL.
This is an existing project so I can't really change the structure how it was built. So, any suggestions on how I can extract the cities from JSON DATA having relation with the orders identity along with the totals and all.
I just need the order_ids I think city wise then I can structure my result anyway I like to achieve end result.
If anything confusion here, please let me know so that I can make it clear.
Thanks in Advance !

Answer 1

I would suggest grouping fetched data using Laravel Collection functions.
Order Model
class Order extends Model {
// This will cast data to native types.
// so order_address json string to array
protected $casts = [
'order_addresses' => 'array',
];
}
Controller function
// Fetch orders from the database as you usually do
// without considering about grouping.
// with your conditions.
// I will simply use all() for example.
$orders = Order::all();
// First group by city
// Then map to get the result you want.
$groupedOrders = $orders->groupBy(function($order) {
// since we added it to the casts array in the model
// laravel will automatically cast json string to an array.
// So now order_address is an array.
return $order->order_addresses['City'];
})
->map(function($groupedOrders, $groupName) {
return [
'orders' => $groupedOrders->count(),
'totals' => $groupedOrders->sum('grand_total'),
'groupby' => $groupName,
];
});