feat: add conditionable allowed filter

[luilliarcec]

This adds the possibility of providing a closure to the AllowedFilter class, to determine whether or not it should be applied.

[AlexVanderbist]

Hey @luilliarcec, thanks for the PR!

Currently, it's already possible to dynamically "disable" filters in the allowedFilters method by simply omitting them.

For example:

$queryBuilder
    ->allowedFilters(array_filter([
        $someCondition ? AllowedFilter::exact('user_id') : null
    ]))
    ->get();

I agree that the ->when syntax is more fluent tho, but I'm curious if you have a practical applications for this?

[luilliarcec]

Hey @luilliarcec, thanks for the PR!

Currently, it's already possible to dynamically "disable" filters in the allowedFilters method by simply omitting them.

For example:

$queryBuilder
    ->allowedFilters(array_filter([
        $someCondition ? AllowedFilter::exact('user_id') : null
    ]))
    ->get();

I agree that the ->when syntax is more fluent tho, but I'm curious if you have a practical applications for this?

Hi @AlexVanderbist

I don't want to pass up the opportunity to wish you and the spatie team a happy new year, thanks for your great contributions to the Laravel community.

Well, I was born the need, when in an application, certain users could make use of a filter in a matter of a role or permission.

It could even be extended further, to sorts, fields and includes, through a trait.