PHP Laravel (->with) only 1 result - php

Question

I have 2 models: TheSeries and TheEpisodes.
TheSeries has many TheEpisodes and TheEpisodes has one TheSeries.
I am trying to list all TheSeries and display latestEpisode in each, by using TheEpisodes.addDate.
The code I have right now is this:
$TheSeries = TheSeries::with('TheEpisodes');
What should I do to display only latest 1 episode for each TV serial?
EDIT
->take(1) and ->limit(1) do not work for TheEpisodes
EDIT (Latest Semi-Working Code)
$results = TheSeries::take(5)->with(['TheEpisodes' => function($q) {
$q->orderBy('addDate', 'desc');
}])->get()
This works, it returns the episodes in correct order but I am unable to limit the results to 1. This following codes don't work:
// Example 1
$results = TheSeries::take(5)->with(['TheEpisodes' => function($q) {
$q->orderBy('addDate', 'desc')->take(1);
}])->get()
// Example 2
$results = TheSeries::take(5)->with(['TheEpisodes' => function($q) {
$q->orderBy('addDate', 'desc')->limit(1);
}])->get()
// Example 3
$results = TheSeries::take(5)->with(['TheEpisodes' => function($q) {
$q->orderBy('addDate', 'desc')->first();
}])->get()
Those are the column names of the tables:
TheSeries - id, originalTitle, aliasTitle, description, imageURL, startingDate, endingDate, activeBool
TheEpisodes: id, seriesID, authorID, addDate, episodeVersion

Answer 1

Define a TheLatestEpisode hasOne relation on your TheSeries model:
class TheSeries extends Model
{
public function TheLatestEpisode()
{
return $this->hasOne(TheEpisode::class, 'seriesID')->orderBy('id', 'desc');
}
}
Then you can easily do:
$series = TheSeries::with('TheLatestEpisode')->get();

Answer 2

You can try it as:
$TheSeries = TheSeries::with(['TheEpisodes' => function($q) {
$q->orderBy('created_at', 'desc')->take(1);
}])
->get();
Or try with limit as:
$TheSeries = TheSeries::with(['TheEpisodes' => function($q) {
$q->orderBy('created_at', 'desc')->limit(1);
}])
->get();

Answer 3

$TheSeries = TheSeries::with(['TheEpisodes' => function($q) {
$q->orderBy('created_at', 'desc')->first();
}])
->get();
can't work?

Answer 4

Why don't you use the DB statement ?
DB::table('TheEpisodes')
->leftjoin('TheSeries','TheEpisodes.SeriesId','=','TheSeries.id')
->select('TheEpisodes.*','TheSeries.id as sId','TheSeries.name as sName',...)
->orderBy('TheEpisodes. addDate','desc')
->take(1)
->get();

Answer 5

You can try something like this in your TheSeries model: (it is easier)
public function getLatestEpisodeAttribute(){
$episode = TheEpisodes::where('series_id',$this->attributes['id'])
->latest()
->first();
if(!$episode){
return "no episodes for this Series";
}
return $episode;
}
On your controller just do the query normally without including anything related to TheSeries and you can access it values in your blade file like this:
//lets suppose there is a title attibute in the episodes
{{$TheSeries->latest_episode->title}}
//or a duration attribute
{{$TheSeries->latest_episode->duration}}

Answer 6

The best solution I found, was to create a one-to-one relationship with orderBy('addDate'), it works!!!
Reference: https://softonsofa.com/tweaking-eloquent-relations-how-to-get-latest-related-model/

Answer 7

$TheSeries = TheSeries::with('TheEpisodes')->first();
Or
$TheSeries = TheSeries::with('TheEpisodes')->firstOrFail();