Laravel search where relationship does not exist - php

Question

I can query where relationships exist by using the whereHas method, but now I need to get the inverse of this result, where the result does not match the result in the whereHas clause.
Here's my query:
$query->whereHas('actions', function ($query) {
$query->where('actions.created_at', '>', Carbon::now()->addDays(-30));
});
This gets things that are actioned in the last 30 days, but I need to get the things that are NOT actioned in the last 30 days.
It seems like I need to get the max(actions.created_at) from the relationship and see if that value is > 30 days ago, but I'm not sure how I can do this with eloquent.
Note: the relationship between person and action is 1 to many, so there could be multiple action records linked, so I can't just flip the operator to be a "<="

Answer 1

Remember whereHas has more than two parameters:
$query->whereHas('actions', function ($query) {
$query->where('actions.created_at', '>', Carbon::now()->addDays(-30));
}, '=',0);
As a matter of fact, it has two more, but by default it is set to '>=' and '1'. So we add the parameters '=' and '0' (or '<', and '1' for what it matters) to convert it in a subquery like 'all the actions that are not in the subset of actions added in less than 30 days).
whereHas method: http://laravel.com/api/4.1/Illuminate/Database/Eloquent/Builder.html#method_whereHas

Answer 2

Can't you just change your where query to a smaller or equal than?
$query->whereHas('actions', function ($query) {
$query->where('actions.created_at', '<=', Carbon::now()->addDays(-30));
});

Answer 3

Try this [Pseudo Code]:
$actions = App\Models\Action::all();
foreach($actions as $actionArray){
$actionCreatedAt = new Carbon($actionArray->created_at);
$now = Carbon::now();
$difference = $actionCreatedAt->diff($now)->days;
if($difference>30){
$exceedingThirty[] = $actionArray;
} else {
continue;
}
}
Then, you can use $exceedingThirty array, in your view.
OR
Try this:
$sql = "DATEDIFF(actions.created_at, '".date('Y-m-d')."' ) > ". 30;
return App\Models\Action::whereRaw( $sql )->get();
See, if that helps.