laravel DB::transaction how to update records? - laravel

Question

I have a function in a controller like this:
DB::transaction(function () use ($request) {
for ($parts=0; $parts < count($request->name) ; $parts++) {
$parts_info = new PartsInfo;
$parts_info -> part_id = $request -> id;
$parts_info -> name = $request -> name[$parts];
$parts_info -> qty = $request -> qty[$parts];
$parts_info -> price = $request -> price[$parts];
$parts_info -> save();
}
});
Now I want to update the records. How do I do that? Here multiple records have the same part_id which has a one-to-many relationship with another table.
Note: Tried using $parts_info = PartsInfo::where('parts_id', $request->id)->get(); and without get()

Answer 1

Try this one
DB::transaction(function () use ($request) {
for ($parts=0; $parts < count($request->parts) ; $parts++) {
PartsInfo::where("parts_id", $request->id)->update([
"name" => $request->name[$parts],
"qty" => $request->qty[$parts],
"price" => $request->price[$parts]
]);
}
});

Answer 2

try this one
DB::transaction(function () use ($request) {
for ($parts=0; $parts < count($request->parts) ; $parts++) {
PartsInfo::where('id', $request->id[$parts])->update([
"name" => $request->name[$parts],
"qty" => $request->qty[$parts],
"price" => $request->price[$parts]
]);
}
});
You will have to check it with the id and because you are checking it with parts_id so it will not work
or You can first delete the child records and then recreate it
DB::transaction(function () use ($request) {
$count = $request->parts;
PartsInfo::where('parts_id', $request->id)->delete();
for ($parts=0; $parts < $count ; $parts++) {
PartsInfo::create([
'parts_id' => $request->id,
"name" => $request->name[$parts],
"qty" => $request->qty[$parts],
"price" => $request->price[$parts]
]);
}
});