Left join to get a single row in Laravel - php

Question

I have been unsuccessfully trying to leftjoin and get the required data
Here is my code:
$album = Albums::->where('users_id',$user_id)
->leftJoin('photos',function($query){
$query->on('photos.albums_id','=','albums.id');
$query->where('photos.status','=',1);
//$query->limit(1);
//$query->min('photos.created_at');
})
->where('albums.status',1)->get();
The comments are some of my several trying...
I want to get only a single record from the photos table matching the foreign key album_id which was updated first and also with status 1
pls help...

Answer 1

I have used DB::raw() in order to achieve this
$album = Albums::select( 'albums.*',
DB::raw('(select photo from photos where albums_id = albums.id and status = 1 order by id asc limit 1) as photo') )
->where('users_id',$user_id)
->where('albums.status',1)->get();
#JarekTkaczyk 's coding was similar and displayed the same result as I needed, so a special thanks to him for his time and effort...
But comparing the execution time for the quires I stayed to mine as my above snippet
select `albums`.*, (select photo from photos where albums_id = albums.id and status = 1 order by id asc limit 1) as photo from `albums` where `users_id` = '1' and `albums`.`status` = '1'
took 520μs - 580μs
and #JarekTkaczyk 's
select `albums`.*, `p`.`photo` from `albums` left join `photos` as `p` on `p`.`albums_id` = `albums`.`id` and `p`.`created_at` = (select min(created_at) from photos where albums_id = p.albums_id) and `p`.`status` = '1' where `users_id` = '1' and `albums`.`status` = '1' group by `albums`.`id`
took 640μs - 750μs But both did the same...

Answer 2

You can achieve it using either leftJoin or rightJoin (but the latter would return Photo models, so probably you won't need that):
Albums::where('users_id', $user_id)
->leftJoin('photos as p', function ($q) {
$q->on('photos.albums_id', '=', 'albums.id')
->on('photos.updated_at', '=',
DB::raw('(select min(updated_at) from photos where albums_id = p.albums_id)'))
->where('photos.status', '=', 1);
})
->where('albums.status', 1)
->groupBy('albums.id')
->select('albums.*', fields from photos table that you need )
->get();

Answer 3

Are you trying to check for albums that have the status of '1'? If this is the case you are missing an equals sign from your final where.
Try:
->where('albums.status','=',1)->first();
Alternatively you may be able to achieve this with an 'on' instead of a 'where' inside the join function. You also don't need to split up query inside of the function and can do it as one line with the '->' :
$album = Albums::->where('users_id',$user_id)
->leftJoin('photos',function($query){
$query->on('photos.albums_id','=','albums.id')
->on('photos.status','=',1);
})
->where('albums.status','=',1)->first();
You need to make sure that you are using 'first', as it will return a single row of the first result. Get() will return an array.

Answer 4

As a straightforward answer which results in a single object I suggest the following query:
$album = DB::table('albums')->select('albums.*', 'photos.photo')
->join('photos', 'photos.id', '=', 'albums.id')
->where('users_id',$user_id)
->where('albums.status',1)
->first();