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Sieve - Clean & Easy Eloquent Filtration

• Installation
• Usage
  • Creating Filters
  • Mappings
  • Using "individual" filters
  • Filter Bags

This package allows you to filter retrieved records based on query string values.

Once installed filtration shrinks down from this:

to this:

Installation

This package can be used in Laravel 5.8 or higher. You can install the package via composer:

The service provider will automatically get registered. Or you may manually add the service provider in your config/app.php file:

Usage

Enabling filtration for a model is as easy as adding the Aldemeery\Sieve\Concerns\Filterable trait to your model(s):

The Filterable trait adds a filter local scope to your model which accepts an instance of Illuminate\Htpp\Request so it can be used for filtration like this:

Once you have added the trait to your model, and used the filter method , you just need to start creating filters.

Creating filters

A filter class is a class that extends Aldemeery\Sieve\Filter.

You can manually create a filter class and place wherever you like, or use the make:filter artisan command to create a filter which will be placed inside app/Http/Filters directory.

This will typically create the following class:

The filter method inside a filter class, is where you should put your filtration logic. The $value parameter is holding the value passed in the query string for this specific filter key.

Note: the key 'color' in the above example is defined when you actually use the filter

Because you have an instance of Illuminate\Database\Eloquent\Builder, you have all of its power, which means you can do all different sorts of things:

• Ordering

• Filtering by relations

Mappings

Sometimes you might want to use more meaningful values for your query string keys, however these values could be different from the values you actually need for filtration, this is where the $mappings comes to help.

You can define your values mappings in the $mappings array , and they will be automatically resolved before being passed to the filter method, keep reading...

Example: Let's assume you would like to order a list of products by their price, and you don't want to have: ..?price=asc or ..?price=desc in your URL, instead you would like to have something like: ..?price=lowest or ..?price=highest

to achieve this you have the following filter class:

Using "individual" filters

Once you have created your filter and defined your filtration logic, It's time now to actually use the filter, which can be done in three ways:

• Passing a filters array as a second parameter to the filter scope.
• Defining model filters inside the model itself.
• Using filter bags.

Passing a filters array to filter:

Use this when you want to apply a filter to a single query:

In the above example the filter will look for the value of the key color in the query string for this query only, and pass it to the filter method inside the filter class where you have put your filtration logic.

Defining model filters:

The Filterable trait providers a filters method that should return an array of "keys" and "filters" to be applied to the model every time the filter method is called.

Now everytime you call the filter method on the model, you will have the ColorFilter applied on your query without passing any external arguments.

Filter Bags

Sometimes you might have a large list of filters that is making your model look messy, or you might want to group a list of filters so you can share them between different models. This is when you want to have a filter bag.

A filter bag is a class that extends Aldemeery\Sieve\FilterBag and contains an array of filters that are always applied together.

Again you can manually create your filter bag class and place it wherever you like, or use the make:filter-bag command to create a filter bag class that is placed inside the app\Http\Filters directory.

This will typically create the following class:

Again, put your "key" and "filter" pairs inside the $filters array:

And once you have done that, you just need to override the filterBag method from the Filterable trait inside your model, to return which filter bag should be used.

Now everytime the filter method is called on the model, all the filters inside the ProductFilters will be applied.

License

The MIT License (MIT). Please see License File for more information.