Eloquent - How should I make a condition in a join table - laravel

I have a tournament table.
Each tournament hasMany Championships.
I want to get the tournament that match the championshipID = 333.
So, I do it :
$tournament = Tournament::with([
'championships' => function ($query) use ($request) {
$query->where('id', '=', 333);
},
'championships.settings',
'championships.category',
'championships.tree.user1',
'championships.tree.user2',
'championships.tree.user3',
'championships.tree.user4',
'championships.tree.user5'
])->first();
Example of 1 of my relations:
public function settings()
{
return $this->hasOne(ChampionshipSettings::class);
}
Tell me if you need all, to post it.
But as I put 1 eager loading relationship, I get all my tournaments instead of getting just one.
What Am I missing???

I think you're looking for whereHas() which will allow you to filter a model based on a related model's constraints. You should also use a subquery for the nested constraints if you're getting the related model more than once to avoid query duplication like:
$tournament = Tournament::whereHas('championships', function($query) use ($championshipId) {
return $query->where('id', $championshipId);
})
->with(['championships' => function ($query) use ($request) {
$query->where('id', '=', 333)
->with([
'settings',
'category',
'tree' => function($query) {
return $query->with('user1', 'user2', 'user3', 'user4', 'user5');
}]);
}])
->first();

Related

Laravel - Filter collection with closure on relationship

Wondering if there is a way to use closure on a relationship in order to filter the whole line if there isn't a value which corresponds?
Example code:
foreach ($paiementMethods as $value) {
$giftCards = GiftCard::with(['userEntered', 'userEmployee', 'client', 'payement', 'payement.payementMethods' => function($query) use ($value)
{
$query->where('id', $value);
}])
->where('date','>=', $dateStart)
->where('date','<=', $dateEnd)
->orderBy('updated_at', 'desc')->get();
$giftCardsCollection = $giftCardsCollection->merge($giftCards);
}
}
In this example, if $query->where doesn't find a row for the payement.payementMethods which matches the $value, I want the giftCard to return null. The result I get is the giftCard with only the relation on payement.payementMethods being empty.
My other solution would be to query the giftCard and after that checking the $value to see if I have to include the giftCard in the collection or not.
Best regards
I think using whereHas, it can be solved
$giftCards = GiftCard::with(['userEntered', 'userEmployee', 'client', 'payement', 'payement.payementMethods'])
->whereHas( 'payement.payementMethods', function($query) use ($paiementMethods) {
$query->whereIn('id', $paiementMethods);
})
->where('date','>=', $dateStart)
->where('date','<=', $dateEnd)
->orderBy('updated_at', 'desc')
->get();

Spatie Query Builder filter nested relations

Using Spatie Query Builder I would like to extend the filters on nested relationships
The following code fetches locations with the relation jobs counts which works fine. I would like to extend the filter on job relation to can query relation job.level which is a many to many. How would I go for?
the filter would look like /options/?filter[job.level]=2
Germany - 12,
Italy - 34
$locations = QueryBuilder::for(JobLocation::class)
->select('id as value', 'title', 'country_id')
->orderBy('title')
->withCount(['job as counts' => function ($q) {
$q->whereNull('deleted_at');
}])
->whereHas('country', function ($q) {
$q->where('id', '=', 80);
})
->allowedAppends(
'job',
)
->allowedIncludes('job', 'job.level',)
->allowedFilters([
AllowedFilter::exact('job.language_id'),
AllowedFilter::exact('job.level', 'job.level.id')
])->get();
I think you are looking for the whereHas function. See the docs for querying relation existence here. But you are already doing this for the country relationship, this is not any different.
So I think yours would look something like:
$locations = QueryBuilder::for(JobLocation::class)
->select('id as value', 'title', 'country_id')
->orderBy('title')
->withCount(['job as counts' => function ($q) {
$q->whereNull('deleted_at');
}])
->whereHas('country', function ($q) {
$q->where('id', '=', 80);
})
//New query constraint here
->whereHas('job', function ($q) {
$q->where('level', '=', 2);
})
->allowedAppends(
'job',
)
->allowedIncludes('job', 'job.level',)
->allowedFilters([
AllowedFilter::exact('job.language_id'),
AllowedFilter::exact('job.level', 'job.level.id')
])->get();

Laravel Eloquent making select on whereHas()

How can I select on whereHas() some columns in relation.
My current query looks like as it follows
Location::select(['title'])
->withCount(['job' => function($q) {
return $q->where('language_id', 1)->whereNull('deleted_at');
}])->whereHas('country', function ($q) {
return $q->where('id', '=', 80);
})->get();
and I tried
Location::select(['title', 'id as value'])->withCount(['job' => function($q) {
return $q->where('language_id', 1)->whereNull('deleted_at');
}])->whereHas('country', function ($q) {
return $q->select('title', 'iso3')->where('id', '=', 80);
})->get();
but nothing is getting returned on country relation. How do I refactor this query to get it work?
whereHas() doesn't eager load the relation, only filters results based on it. To eager load, use with().
Location::with('country:id,title,iso3')
->select(['title', 'id as value', 'country_id'])
->withCount(['job' => function($q) {
$q->where('language_id', 1)->whereNull('deleted_at');
}])
->whereHas('country', function ($q) {
$q->where('id', '=', 80);
})->get();

Excluding pivot rows in Eloquent ORM query

(laravel 4.2)
There are four tables involved; users, posts, flags, and post_flags.
I want to retrieve every post a certain user has, and retrieve the flags set for the post, but only the flags that are set by the user in question.
For example: A post can have flags: 1,2,2,3 where flag 2 is set twice. Once by User A, once by User B. I don't want to see the flags that User B has set.
The Eloquent query in my controller:
$posts = Post::whereHas('companies', function($q) use($company_id) {
$q->where('id', '=', $company_id);
})->with('flags')->get();
The Relation in my Post model:
public function flags() {
return $this->belongsToMany('PostFlag', 'post_postflags', 'post_id', 'flag_id')
->withTimestamps()->withPivot('owner');
}
How would I achieve this using Eloquent ORM?
UPDATE
My final query, thanks to andrewtweber:
Final query
$posts = Post::whereHas('users', function($q) use($id) {
$q->where('id', '=', $id);
})->get()->load([
'flags' => function($query) use($id) {
$query->where('owner', '=', $id)->orWhere('owner', '=', 'SYSTEM');
}
]);
Use wherePivot
http://laravel.com/api/4.2/Illuminate/Database/Eloquent/Relations/MorphToMany.html
$flags = $post->flags()
->wherePivot('user_id', '=', $user_id)
->get();
Or with eager loading
$posts->load([
'flags' => function ($query) use($user_id) {
$query->wherePivot('user_id', '=', $user_id);
}
]);

Laravel 4 Eager Loading constraints

I want to get all Items (topics) WITH their comments, if comments user_id = $id. I try something like this, but it isn't working. So if Item hasn't got any comment with user_id = $id, then I don't need this Item.
In DiscussionsItem model I have methode:
public function discussionsComments() {
return $this->hasMany('DiscussionsComment', 'discussionsitem_id');
}
My query in controller is like this:
$items = DiscussionsItem::whereBrandId($brand_id)
->whereBrandCountryId($country_id)
->with(['discussionsComments' => function($query) use ($id) {
$query->where('user_id', '=', $id);
}])
->whereHas('discussionsComments', function($query) use ($id) {
$query->where('user_id', '=', $id);
})
->with(['views' => function($query) use ($id) {
$query->where('user_id', $id)->count();
}])
->orderBy('created_at', 'DESC')->get();
My problem is that I get items with comments, where comments user_id != $id.
P.S. I need to take 5 comments, but I cant imagine how to do that, because ->take(5) in my eager load is not working.
You can do a custom scope, or just limit the amount returned by your relation:
public function discussionsComments() {
return $this->hasMany('DiscussionsComment', 'discussionsitem_id')
->latest()
->take(5);
}

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