Storing/updating multiple rows in from same method in Laravel - php

Question

I have a table like this
month | rate | admin_id
0 | 1000 | 1
I am storing data with following method:
public function store(Request $request)
{
foreach ($request->admin_id as $key => $val){
$adminbillings = AdminBilling::create([
'month' => 0,
'rate' => $request->rate[$key],
'admin_id' => $val,
]);
}
return redirect('/');
}
When I add a new row in the table using this method, I also want to replace the month of previous row (which is 0) with the timestamp of the new line. So the table will become
month | rate | admin_id
29-08-2017 | 1000 | 1
0 | 2000 | 1
I can add multiple lines from single method, but here one is store and one is update, and by default update requires two arguments. But may be I am mistaken somewhere. Can you please guide me how to achieve my target?
I can access the previous row inside the method using this line:
$ended_at = AdminBilling::where('admin_id', $val)->where('month', 0)->get();

Answer 1

This is not best solution but you will achieve your target.
To update previous record after insertion , you can do like this -
$res = AdminBilling::select('id')->orderBy('id','desc')->skip(1)->take(1)->first(); //to get prev. row
AdminBilling::where('id',$res->id)->update(['month',date()]); // to update month
put these lines in your store function as -
public function store(Request $request)
{
foreach ($request->admin_id as $key => $val){
$adminbillings = AdminBilling::create([
'month' => 0,
'rate' => $request->rate[$key],
'admin_id' => $val,
]);
$res = AdminBilling::select('id')->orderBy('id','desc')->skip(1)->take(1)->first();
AdminBilling::where('id',$res->id)->update(['month',date()]);
}
return redirect('/');
}
Hope this will helpful for you.

Answer 2

When you use create method it returns the instance of your inserted row. So you can use $adminbillings->id if you need the access to previously insterted row.