问题
Using Raw, how to return collection of updated row?
For example:
$updated = DB::table('users')->where('id', 1)->update(['votes' => 123]);
I was expecting dd($updated) to return updated row of collection but it returned 1.
{{$updated->votes}} should return 123
回答1:
That's not how it works. You can't expect this query will return you an object:
$updated = DB::table('users')->where('id', 1)->update(['votes' => 123]);
If you want to use Query Builder only as you mentioned in your question, you'll need to get an object manually:
$data = DB::table('users')->where('id', 1)->first();
With Eloquent you can use the updateOrCreate():
$data = User::where('id', 1)->updateOrCreate(['votes' => 123]);
This will return an object. update() will return boolean, so you can't use it here.
回答2:
All functions regarding database returns same value as you would run a raw query through php.
If you run a UPDATE or INSERT query in PHP, it returns boolean. Same in Laravel update() returns 1 or 0.
Its totally normal, only functions which uses SELECT behind the scenes will return an object containing row. FOr example: first(), get(), find() etc.
回答3:
In controller you write below code for update :
$updated = DB::table('users')->where('id', 1)->update(['votes' => 123])->get();
来源：https://stackoverflow.com/questions/43093965/return-collection-after-update