Neo4j::Cypher

“Cypher” is a declarative graph query language that allows for expressive and efficient querying of the graph store without having to write traversals through the graph structure in code.

The neo4j-cypher gem makes it possible to generate Cypher query strings from Ruby DSLs. The cypher language is described here: Neo4j Cypher Documentation See the RSpecs for more examples here

Notice

• The neo4j-cypher gem can be used both from neo4j.rb (see Neo4j::Core-Cypher) and from the Neo4j rest API, see neography
• Both neography (Neography.execute_query) and neo4j-core (Neo4j.query) includes methods which also executes the query.

Content

• API - The neo4j-cypher and neography cypher adaptor.
• Start - Starting points in the graph, obtained via index lookups or by element IDs.
• Match - The graph pattern to match, bound to the starting points.
• Where - Filtering criteria.
• Return - What to return.
• Mutating - TODO Create,Delete,Set, Foreach
• With - TODO Divides a query into multiple, distinct parts.
• Examples - Some examples