README.md
AQL
===
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Generator for the ArangoDB Query Language [AQL](http://www.arangodb.org/manuals/current/Aql.html) in Ruby. It is used as a backend for [axiom-arango-adapter](https://github.com/mbj/axiom-arango-adapter).
Using AQL
---------
There is currently no stable public API.
Installation
------------
Install the gem `aql` via your preferred method.
Examples
--------
This gem does not have a public API. Please do not use it as a way to generate AQL statements by hand - this gem is not intended for this purpose.
Instead write a library that uses this gem to generate AQL.
Just to make it easier for you to get into the code, here is an example on how to generate a simple AQL statement:
```ruby
require 'aql'
include AQL
person = Node::Name.new('person')
firstname = Node::Name.new('firstname')
lastname = Node::Name.new('lastname')
person_firstname = Node::Attribute.new(person, firstname)
node = Node::Operation::For.new(
person,
Node::Name.new('people'),
Node::Block.new(
[
Node::Operation::Unary::Filter.new(
Node::Operator::Binary::Equality.new(person_firstname, Node::Literal::Primitive::String.new('Markus'))
),
Node::Operation::Unary::Return.new(
Node::Literal::Primitive::Composed::Document.new([
Node::Literal::Composed::Document::Attribute.new(
person_firstname,
Node::Attribute.new(person, Node::Name.new('lastname'))
)
])
)
]
)
)
puts node.aql
#=> "FOR `person` IN `people` FILTER (`person`.`firstname` == "Markus") RETURN {`person`.`firstname`: `person`.`lastname`}"
```
Credits
-------
* [Markus Schirp (mbj)](https://github.com/mbj) Author
* [triAGENS](https://github.com/triAGENS) For sponsoring this work!
Contributing
-------------
* Fork the project.
* Make your feature addition or bug fix.
* Add tests for it. This is important so I don't break it in a
future version unintentionally.
* Commit, do not mess with Rakefile or version
(if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
* Send me a pull request. Bonus points for topic branches.
License
-------
This gem is published under the MIT license. See LICENSE file.