Restrict

Global Filters

purity validates allowed filters in the following order of priority:

  • Filters specified in the filters configuration in the configs/purity.php file.

// configs/purity.php
'filters' => [
  EqualFilter::class,
  InFilter::class,
],
  • Filters declared in the $filters variable in the model.

Note that $filters will overwrite config filters.

// App\Models\Post

private array $filters = [
  '$eq',
  '$in',
];

// or

private array $filters = [
  EqualFilter::class,
  InFilter::class,
];
  • Filters passed as an array to the filterBy() function.

Note that, `filterBy` will overwrite all other defined filters.

Post::filterBy('$eq', '$in')->filter()->get();
// or
Post::filterBy(EqualFilter::class, InFilter::class)->filter()->get();

Restrict by Field

There are three available Methods for your convenience. They take priority respectively.

  • Method 1: Define restricted filters inside $filterFields property, as shown below

$filterFields = [
  'title' => ['$eq'],  // title will be limited to the eq operator
  'title' => '$eq',    // works only for one restricted operator
  'title:$eq',         // same as above
  'title',             // this won't be restricted to any operator
];

The drawback here is that you have to define all the allowed fields, regardless of any restriction fields.

  • Method 2: Define them inside $restrictedFilters property

$restrictedFields = [
  'title' => ['$eq', '$eq'],  // title will be limited to the eq operator
  'title:$eq,$in'             // same as above
  'title'                     // this won't be restricted to any operator
];
  • Method 3: Finally, you can set it on the Eloquent builder, which takes the highest priority (overwrite all the above options)

Post::restrictedFilters(['title' => ['$eq']])->filter()->get();
$filters = ['$eq'];
$restrictedFilters = ['title' => ['$eqc']] // This won't work

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