In plain English: I have three tables. subscription_type
which has many email_subscription
s which has many email
s.
I'm trying to select all email_subscription
records that have a particular subscription_type
, that also don't have any associated email
records that have a status
of Held
.
The particular bit I am stuck on is only returning email_subscriptions
which have zero emails
(with an additional where clause stacked in there described above).
Using Eloquent, I've been able to get a bit of the way, but I don't have any idea how to select all the records that have a relationship count of zero:
$subscriptionsWithNoCorrespondingHeldEmail = EmailSubscriptions::whereHas('subscriptionType', function($q) {
$q->where('name', 'New Mission');
})-; // What do I chain here to complete my query?
Additionally, is this even possible with Eloquent or will I need to use Fluent syntax instead?
You can use the has()
method to query the relationship existence:
has('emails', '=', 0)
Eg:
$tooLong = EmailSubscriptions::whereHas('subscriptionType', function($q) {
$q->where('name', 'New Mission');
})->has('emails', '=', 0)->get();
Edit
You can do more advanced queries with the whereHas()
and whereDoesntHave()
methods:
$tooLong = EmailSubscriptions::whereHas('subscriptionType', function($q) {
$q->where('name', 'New Mission');
})
->whereDoesntHave('emails', function ($query) {
$query->where('status', '=', 'whatever');
})->get();
OK what I have under stand from your Question is you would like to have a All Emails which have
specific subscription_type, Zero(0) association and status = status
If yes so you canuse array in where statement. Like:
$q->->where(array('status' => 'status','subscription_type'=>'what ever you want));
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