Inserting if record not exist, updating if exist - laravel-5

Question

Hiii
I have 2 database tables with the columns table :1 "id, invoice_id, subject, total" table:2 "id, invoice_id, item_name, price".whenever i try to update record with the help of invoice_id if record doesn't exist in item table it will not insert new item in item table.
here i attached my JSON data
{
"date": "2019-06-08",
"client_id": "1",
"currency_id": 4,
"total_amount": null,
"subject": "RD Management",
"items": [
{
"item_name": "Saving",
"price": "500"
},
{
"item_name": "Fix",
"price": "500"
},
{
item_name": "Current",
"price": "200"
}
]
}
here one problem is also
my JSON can not send item_id also
so without item id how can i update my record...???
here 3rd item is not present in my table
here is my controller
foreach ($request->items as $key => $items)
{
$item_update = [
'item_name' => $items['item_name'],
'price' => $items['price']
];
DB::table('items')
->where('invoice_id', $id)
->update($item_update);
}
I Except output like this
"items": [
{
"id": 1,
"invoice_id": "1",
"item_name": "Saving",
"price": "500",
},
{
"id": 2,
"invoice_id": "1",
"item_name": "Fix",
"price": "500",
},
{
"id": 3,
"invoice_id": "1",
"item_name": "current",
"price": "200",
},
]
but my actual output is
"items":[
{
"id":"1"
"item_name": "Fix",
"price": "500",
},
{
"id":"2"
"invoice_id": "1",
"item_name": "Fix",
"price": "500",
}
]
this output override item_name at update time.
there are any way to solve this both problem.

Answer 1

If you can't identify which items already exist and which ones are new, your remaining option is to identify items by item_name+invoice_id. The downside is that you cannot update item_name this way.
If you have Eloquent models properly set up, you can use updateOrCreate().
<?php
foreach ($request->items as $key => $items)
{
$itemAfterUpdate = App\Item::updateOrCreate(
[
'invoice_id' => $id,
'item_name' => $items['item_name']
],
[ 'price' => $items['price'] ]
);
}
If not, you will basically have to do what Eloquent does behind the scenes, which is check if the item already exists based on item_name and invoice_id, and then insert or update accordingly.
<?php
foreach ($request->items as $key => $items)
{
$alreadyExists = DB::table('items')
->where('invoice_id', $id)
->where('item_name', $items['item_name'])
->exists();
}
if($alreadyExists){
DB::table('items')
->where('invoice_id', $id)
->where('item_name' => $items['item_name'])
->update(['price' => $items['price']);
}
else{
DB::table('items')->insert([
'invoice_id' => $id,
'item_name' => $items['item_name'],
'price' => $items['price']
]);
}
}