Arango Weekly 24: Alpha Release 2.6, Diff Documents with AQL

Last week we’ve released ArangoDB 2.6 alpha! We would be happy if you could test the new version and give us some feedback. For all the great developers who make drivers and tools for ArangoDB we made a list of important changes in the API. With ArangoDB 2.6 you also can generate your API documentation with Swagger 2. Stay tuned, follow @arangodb for more news and have fun with the new release.

ArangoDB Releases

The first alpha release of ArangoDB 2.6 is available for download. We have many new features like the following:

• Added AQL Upsert statement to AQL
• Added batch document removal and lookup commands
• ArangoDB now provides a dedicated collection export API

For a list of all changes you can look at our changelog. This alpha-release is for testing purposes only, please try the new version and provide us feedback.

ArangoDB related (Drivers & more)

• (JS) ArangoJS 3.8.0: Latest npm of ArangoJS Javascript driver
• (Blueprints) blueprints-arangodb-graph 1.0.10: Now supports ArangoDB 2.5.X and 2.6.X
• (Java) arangodb-java-driver 2.5.5: Updated driver.getTraversal()
• (PHP) arangodb-php 2.5.2: Added setOption with tests

Articles and Presentations

• ArangoDB 2.6: API changes, additions and changed behavior
• Document your Foxx apps with Swagger 2

Cookbook

• Diffing Two Documents in AQL

Questions on Stack Overflow

Answered:

• ArangoDB Too many open files
• Update inner object in ArangoDB

Events

• June 04 – 06, 2015 – Dublin: NoSQL matters

Did you know?

Traversals: Starting from Scratch
ArangoDB provides the edges, inEdges, and outEdges methods for edge collections. These methods can be used to quickly determine if a vertex is connected to other vertices, and which.

For example, to determine which edges are linked to the world vertex, we can use inEdges:

db.e.inEdges('v/world').forEach(function(edge) {
  require("internal").print(edge._from, "->", edge.type, "->", edge._to);
  });

The result is a JavaScript array that we can iterate over and print the results:

v/continent-africa -> is-in -> v/world
v/continent-south-america -> is-in -> v/world
v/continent-asia -> is-in -> v/world
v/continent-australia -> is-in -> v/world
v/continent-europe -> is-in -> v/world
v/continent-north-america -> is-in -> v/world

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