Laravel - Get Row ID of selected Item - php

Question

I'm new to Laravel. I want to check if there is an ID of the selected item and user from my form. Both these fields are in my item_assignments table. Whenever there is no ID found, it will create a new assignment and store it to the item_assignments table. This works but when there is an ID found, it should update the existing one by incrementing the count inputted.
Here is my view.
<form class="form-horizontal" method="post" action="{{url('item/assign')}}" enctype="multipart/form-data">
<input type="hidden" name="_token" value="{{ csrf_token() }}" >
<legend>Assign Item</legend>
<fieldset>
<input id="eid" name="id" type="hidden">
<!-- Text input-->
<div class="form-group">
<label class="col-md-4 control-label" for="name">Item Name:</label>
<div class="col-md-6">
<input id="ename" name="name" type="text" class="form-control input-md" readonly>
</div>
</div>
<!-- Select Basic -->
<div class="form-group{{ $errors->has('user') ? ' has-error' : '' }}">
<label class="col-md-4 control-label" for="user">Assign to:</label>
<div class="col-md-6">
<select id="user" name="user" class="form-control">
<option value="0">Select a User</option>
#foreach($users as $user)
<option value="{{$user->id}}">{{$user->name}}</option>
#endforeach
</select>
#if ($errors->has('user'))
<span class="help-block">
<strong>{{ $errors->first('user') }}</strong>
</span>
#endif
</div>
</div>
<!-- Text input-->
<div class="form-group{{ $errors->has('count') ? ' has-error' : '' }}">
<label class="col-md-4 control-label" for="count">Item Count:</label>
<div class="col-md-6">
<input id="count" name="count" type="text" placeholder="Enter Item Count" class="form-control input-md">
#if ($errors->has('count'))
<span class="help-block">
<strong>{{ $errors->first('count') }}</strong>
</span>
#endif
</div>
</div>
<!-- Button (Double) -->
<div class="form-group">
<label class="col-md-5 control-label" for="submit"></label>
<div class="col-md-7">
<button id="submit" name="submit" class="btn btn-success">Assign</button>
</div>
</div>
</form>
This is my controller
// checks the ID of the selected item
$assign1 = ItemAssign::where("item_id", $req->id)->where('user_id', $req->user)->first();
// this works
if (!($assign1)) {
$assign = new ItemAssign();
$assign->user_id = $req->user;
$assign->item_id = $req->id;
$assign->item_count = $req->count;
$assign->balance = $req->count;
$assign->save();
}
// this is what I want to work
else {
$assign = ItemAssign::find($assign1);
$assign->item_count += $req->count;
$assign->balance += $req->count;
$assign->save();
}
// stores to user table
$user = User::find($req->user);
$user->received += $req->count;
$user->save();
// stores to item table
$item = Item::find($req->id);
$count = $item->item_count;
$item->assigned_count += $req->count;
$item->remaining = $count - $item->assigned_count;
$item->save();
return redirect('assignment');

Answer 1

If you already have an instance of ItemAssign stored in $assign1 you should be able to just update that one instead of using a find.
IE:
else {
$assign1->item_count += $req->count;
$assign1->balance += $req->count;
$assign1->update();
}

Answer 2

else {
$assign = ItemAssign::find($assign1);
$assign->item_count += $req->count;
$assign->balance += $req->count;
$assign->update();
}