README

This package allows you to filter, sort and include eloquent relations based on a request. The QueryBuilder used in this package extends Laravel's default Eloquent builder. This means all your favorite methods and macros are still available. Query parameter names follow the JSON API specification as closely as possible.

Disclaimer (pt_BR)

Este repositório é uma versão modificada do pacote spatie/laravel-query-builder. Algumas mudanças foram implementadas para uma melhor integração com as demais libs do projeto Versatile.

Basic usage

Filtering an API request: /users?filter[name]=John:

use Versatile\QueryBuilder\QueryBuilder;

// ...

$users = QueryBuilder::for(User::class)
    ->allowedFilters('name')
    ->get();
// all `User`s that contain the string "John" in their name

Requesting relations from an API request: /users?include=posts:

$users = QueryBuilder::for(User::class)
    ->allowedIncludes('posts')
    ->get();
// all `User`s with their `posts` loaded

Works together nicely with existing queries:

$query = User::where('active', true);

$user = QueryBuilder::for($query)
    ->allowedIncludes('posts', 'permissions')
    ->where('score', '>', 42) // chain on any of Laravel's query builder methods
    ->first();

Sorting an API request: /users?sort=name:

$users = QueryBuilder::for(User::class)->get();
// all `User`s sorted by name

Have a look at the usage section below for advanced examples and features.

Installation

You can install the package via composer:

composer require versatilelibs/laravel-query-builder

You can optionally publish the config file with:

php artisan vendor:publish --provider="Versatile\QueryBuilder\QueryBuilderServiceProvider" --tag="config"

This is the contents of the published config file:

return [

    /*
     * By default the package will use the `include`, `filter`, `sort` and `fields` query parameters.
     *
     * Here you can customize those names.
     */
    'parameters' => [
        'include' => 'include',

        'filter' => 'filter',

        'sort' => 'sort',

        'fields' => 'fields',
    ],

];

Usage

Including relationships

The include query parameter will load any Eloquent relation on the results collection. By default, no includes are allowed. All includes must be specified using allowedIncludes().

// GET /users?include=posts
$users = QueryBuilder::for(User::class)
    ->allowedIncludes('posts')
    ->get();

// $users will contain all users with their posts loaded

You can load multiple relationship by separating them with a comma:

// GET /users?include=posts,permissions
$users = QueryBuilder::for(User::class)
    ->allowedIncludes('posts', 'permissions')
    ->get();

// $users will contain all users with their posts and permissions loaded

You can also pass in an array of includes to the allowedIncludes() method.

// GET /users?include=posts,permissions
$users = QueryBuilder::for(User::class)
    ->allowedIncludes(['posts', 'permissions'])
    ->get();

// $users will contain all users with their posts and permissions loaded

You can load nested relationships using .:

// GET /users?include=posts.comments,permissions
$users = QueryBuilder::for(User::class)
    ->allowedIncludes('posts.comments', 'permissions')
    ->get();

// $users will contain all users with their posts, comments on their posts and permissions loaded

When trying to include relationships that have not been allowed using allowedIncludes() an InvalidIncludeQuery exception will be thrown.

Relation/include names will be converted to camelCase when looking for the corresponding relationship on the model. This means /users?include=blog-posts will try to load the blogPosts() relationship on the User model.

Once the relationships are loaded on the results collection you can include them in your response by using Eloquent API resources and conditional relationships.

Filtering

The filter query parameters can be used to filter results by partial property value, exact property value or if a property value exists in a given array of values. You can also specify custom filters for more advanced queries.

By default, no filters are allowed. All filters have to be specified using allowedFilters(). When trying to filter on properties that have not been allowed using allowedFilters() an InvalidFilterQuery exception will be thrown.

// GET /users?filter[name]=john&filter[email]=gmail
$users = QueryBuilder::for(User::class)
    ->allowedFilters('name', 'email')
    ->get();
// $users will contain all users with "john" in their name AND "gmail" in their email address

You can also pass in an array of filters to the allowedFilters() method.

// GET /users?filter[name]=john&filter[email]=gmail
$users = QueryBuilder::for(User::class)
    ->allowedFilters(['name', 'email'])
    ->get();
// $users will contain all users with "john" in their name AND "gmail" in their email address

You can specify multiple matching filter values by passing a comma separated list of values:

// GET /users?filter[name]=seb,freek
$users = QueryBuilder::for(User::class)
    ->allowedFilters('name')
    ->get();
// $users will contain all users that contain "seb" OR "freek" in their name

Exact filters

When filtering models based on their IDs, a boolean value or a literal string, you'll want to use exact filters. This way /users?filter[id]=1 won't match all users containing the digit 1 in their ID.

Exact filters can be added using Versatile\QueryBuilder\Filter::exact('property_name') in the allowedFilters() method.

use Versatile\QueryBuilder\Filter;

// GET /users?filter[name]=John%20Doe
$users = QueryBuilder::for(User::class)
    ->allowedFilters(Filter::exact('name'))
    ->get();
// all users with the exact name "John Doe"

The query builder will automatically map 'true' and 'false' as booleans and a comma separated list of values as an array:

use Versatile\QueryBuilder\Filter;

// GET /users?filter[id]=1,2,3,4,5&filter[admin]=true
$users = QueryBuilder::for(User::class)
    ->allowedFilters(Filter::exact('id'), Filter::exact('admin'))
    ->get();
// $users will contain all admin users with id 1, 2, 3, 4 or 5

Scope filters

Sometimes you'll want to build more advanced filtering queries. This is where scope filters and custom filters come in handy.

Scope filters allow you to easily add local scopes to your query by adding filters to the URL.

Consider the following scope on your model:

public function scopeStartsBefore(Builder $query, $date): Builder
{
    return $query->where('starts_at', '>=', Carbon::parse($date));
}

To filter based on the startsBefore scope simply add it to the allowedFilters on the query builder:

QueryBuilder::for(Event::class)
    ->allowedFilters([
        Filter::scope('starts_before'),
    ])
    ->get();

The following filter will now add the startsBefore scope to the underlying query:

GET /events?filter[starts_before]=2018-01-01

You can even pass multiple parameters to the scope by passing a comma separated list to the filter:

GET /events?filter[starts_between]=2018-01-01,2018-12-31

Custom filters

You can specify custom filters using the Filter::custom() method. Custom filters are simple, invokable classes that implement the \Versatile\QueryBuilder\Filters\Filter interface. This way you can create any query your heart desires.

For example:

use Versatile\QueryBuilder\Filters\Filter;
use Illuminate\Database\Eloquent\Builder;

class FiltersUserPermission implements Filter
{
    public function __invoke(Builder $query, $value, string $property) : Builder
    {
        return $query->whereHas('permissions', function (Builder $query) use ($value) {
            $query->where('name', $value);
        });
    }
}

use Versatile\QueryBuilder\Filter;

// GET /users?filter[permission]=createPosts
$users = QueryBuilder::for(User::class)
    ->allowedFilters(Filter::custom('permission', FiltersUserPermission::class))
    ->get();
// $users will contain all users that have the `createPosts` permission

Sorting

The sort query parameter is used to determine by which property the results collection will be ordered. Sorting is ascending by default. Adding a hyphen (-) to the start of the property name will reverse the results collection.

// GET /users?sort=-name
$users = QueryBuilder::for(User::class)->get();

// $users will be sorted by name and descending (Z -> A)

By default, all model properties can be used to sort the results. However, you can use the allowedSorts method to limit which properties are allowed to be used in the request.

When trying to sort by a property that's not specified in allowedSorts() an InvalidSortQuery exception will be thrown.

// GET /users?sort=password
$users = QueryBuilder::for(User::class)
    ->allowedSorts('name')
    ->get();

// Will throw an `InvalidSortQuery` exception as `password` is not an allowed sorting property

To define a default sort parameter that should be applied without explicitly adding it to the request, you can use the defaultSort method.

// GET /users
$users = QueryBuilder::for(User::class)
    ->defaultSort('name')
    ->allowedSorts('name', 'street')
    ->get();

// Will retrieve the users sorted by name

You can also pass in an array of sorts to the allowedSorts() method.

// GET /users?sort=name
$users = QueryBuilder::for(User::class)
    ->allowedSorts(['name', 'street'])
    ->get();

// Will retrieve the users sorted by name

You can sort by multiple properties by separating them with a comma:

// GET /users?sort=name,-street
$users = QueryBuilder::for(User::class)
    ->allowedSorts('name', 'street')
    ->get();

// $users will be sorted by name in ascending order with a secondary sort on street in descending order.

Selecting specific columns

Sometimes you'll want to fetch only a couple fields to reduce the overall size of your SQL query. This can be done using the fields query parameter. The following fetch only the users' id and name

GET /users?fields[users]=id,name

The SQL query will look like this:

SELECT "id", "name" FROM "users"

Selecting fields for included models works the same way. This is especially useful when including entire relationships when you only need a couple of columns. Consider the following example:

GET /posts?include=author&fields[author]=name

All posts will be fetched including only the name of the author.

Append attributes

Sometimes you will want to append some custom attributes into result from a Model. This can be done using the append parameter.

class User extends Model{

    public function getFullnameAttribute()
    {
        return $this->firstname.' '.$this->lastname;
    }
}

// GET /users?append=fullname

$users = QueryBuilder::for(User::class)
    ->allowedAppends('fullname')
    ->get();

Of course you can pass a list of attributes to be appended.

// GET /users?append=fullname,ranking

Other query methods

As the QueryBuilder extends Laravel's default Eloquent query builder you can use any method or macro you like. You can also specify a base query instead of the model FQCN:

QueryBuilder::for(User::where('id', 42)) // base query instead of model
    ->allowedIncludes('posts')
    ->where('activated', true) // chain on any of Laravel's query methods
    ->first(); // we only need one specific user

Pagination

This package doesn't provide any methods to help you paginate responses. However as documented above you can use Laravel's default paginate() method.

If you want to completely adhere to the JSON API specification you can also use our own spatie/json-api-paginate!

Building queries at the front end

If you use Vue, you might be interested in the vue-api-query package by Robson Tenório.

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Credits

License

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

versatilelibs / laravel-query-builder

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