bulwark / dream
Requires
- bulwark/architect: ~1.0
- laravel/framework: ~5.4
Requires (Dev)
- mockery/mockery: 0.9.*
- orchestra/testbench: ~3.1
- phpunit/phpunit: ~4.7
- satooshi/php-coveralls: dev-master@dev
This package is not auto-updated.
Last update: 2024-09-06 03:08:29 UTC
README
Introduction
A Laravel base controller class and a trait that will enable to add filtering, sorting, eager loading and pagination to your resource URLs.
Functionality
- Parse GET parameters for dynamic eager loading of related resources, sorting and pagination
- Advanced filtering of resources using filter groups
- Use Bulwark\Architect for sideloading, id loading or embedded loading of related resources
- ... Ideas for new functionality is welcome here
For Laravel 5.4 and above
composer require bulwark/dream ~1.0
Usage
The examples will be of a hypothetical resource endpoint /books
which will return a collection of Book
,
each belonging to a Author
.
Book n ----- 1 Author
Available query parameters
Implementation
<?php namespace App\Http\Controllers; use Bulwark\Api\Controller\EloquentBuilderTrait; use Bulwark\Api\Controller\LaravelController; use App\Models\Book; class BookController extends LaravelController { use EloquentBuilderTrait; public function getBooks() { // Parse the resource options given by GET parameters $resourceOptions = $this->parseResourceOptions(); // Start a new query for books using Eloquent query builder // (This would normally live somewhere else, e.g. in a Repository) $query = Book::query(); $this->applyResourceOptions($query, $resourceOptions); $books = $query->get(); // Parse the data using Optimus\Architect $parsedData = $this->parseData($books, $resourceOptions, 'books'); // Create JSON response of parsed data return $this->response($parsedData); } }
Syntax documentation
Eager loading
Simple eager load
/books?includes[]=author
Will return a collection of 5 Book
s eager loaded with Author
.
IDs mode
/books?includes[]=author:ids
Will return a collection of Book
s eager loaded with the ID of their Author
Sideload mode
/books?includes[]=author:sideload
Will return a collection of Book
s and a eager loaded collection of their
Author
s in the root scope.
See mere about eager loading types in Optimus\Architect's README
Pagination
Two parameters are available: limit
and page
. limit
will determine the number of
records per page and page
will determine the current page.
/books?limit=10&page=3
Will return books number 30-40.
Sorting
Should be defined as an array of sorting rules. They will be applied in the order of which they are defined.
Sorting rules
Example
[ { "key": "title", "direction": "ASC" }, { "key": "year", "direction": "DESC" } ]
Will result in the books being sorted by title in ascending order and then year in descending order.
Filtering
Should be defined as an array of filter groups.
Filter groups
Filters
Operators
Special values
Custom filters
Remember our relationship Books n ----- 1 Author
. Imagine your want to
filter books by Author
name.
[ { "filters": [ { "key": "author", "value": "Bulwark", "operator": "sw" } ] } ]
Now that is all good, however there is no author
property on our
model since it is a relationship. This would cause an error since
Eloquent would try to use a where clause on the non-existant author
property. We can fix this by implementing a custom filter. Where
ever you are using the EloquentBuilderTrait
implement a function named
filterAuthor
public function filterAuthor(Builder $query, $method, $clauseOperator, $value) { // if clauseOperator is idential to false, // we are using a specific SQL method in its place (e.g. `in`, `between`) if ($clauseOperator === false) { call_user_func([$query, $method], 'authors.name', $value); } else { call_user_func([$query, $method], 'authors.name', $clauseOperator, $value); } }
Note: It is important to note that a custom filter will look for a relationship with
the same name of the property. E.g. if trying to use a custom filter for a property
named author
then Dream
will try to eagerload the author
relationship from the
Book
model.
Custom filter function
Examples
[ { "or": true, "filters": [ { "key": "author", "value": "Bulwark", "operator": "sw" }, { "key": "author", "value": "Prime", "operator": "ew" } ] } ]
Books with authors whoose name start with Bulwark
or ends with Prime
.
[ { "filters": [ { "key": "author", "value": "Brian", "operator": "sw" } ] }, { "filters": [ { "key": "year", "value": 1990, "operator": "gt" }, { "key": "year", "value": 2000, "operator": "lt" } ] } ]
Books with authors whoose name start with Brian and which were published between years 1990 and 2000.
Optional Shorthand Filtering Syntax (Shorthand)
Filters may be optionally expressed in Shorthand, which takes the a given filter array[key, operator, value, not(optional)] and builds a verbose filter array upon evaluation.
For example, this group of filters (Verbose)
[ { "or": false, "filters": [ { "key": "author", "value": "Bulwark", "operator": "sw" }, { "key": "author", "value": "Prime", "operator": "ew" } { "key": "deleted_at", "value": null, "operator": "eq", "not": true } ] } ]
May be expressed in this manner (Shorthand)
[ { "or": false, "filters": [ ["author", "sw", "Bulwark"], ["author", "ew", "Prime"], ["deleted_at", "eq", null, true] ] } ]
Standards
This package is compliant with PSR-1, PSR-2 and PSR-4. If you notice compliance oversights, please send a patch via pull request.
Testing
$ phpunit
Contributing
Please see CONTRIBUTING for details.
License
The MIT License (MIT). Please see License File for more information.