Query

Helper methods to return Neo4j::Core::Query objects. A query object can be used to successively build a cypher query

person.query_as(:n).match(‘n-[:friend]-o’).return(o: :name) # Return the names of all the person’s friends

• ClassMethods
• QueryProxy
  • Link
• QueryProxyMethods
  • InvalidParameterError
• QueryProxyEnumerable
• QueryProxyUnpersisted
• QueryProxyEagerLoading
• QueryProxyFindInBatches

Constants

Files

• lib/neo4j/active_node/query.rb:7
• lib/neo4j/active_node/query/query_proxy.rb:3
• lib/neo4j/active_node/query/query_proxy_link.rb:3
• lib/neo4j/active_node/query/query_proxy_methods.rb:3
• lib/neo4j/active_node/query/query_proxy_enumerable.rb:3
• lib/neo4j/active_node/query/query_proxy_unpersisted.rb:3
• lib/neo4j/active_node/query/query_proxy_eager_loading.rb:3
• lib/neo4j/active_node/query/query_proxy_find_in_batches.rb:3

Methods

#as

Starts a new QueryProxy with the starting identifier set to the given argument and QueryProxy source_object set to the node instance. This method does not exist within QueryProxy and can only be used to start a new chain.

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def as(node_var)
  self.class.query_proxy(node: node_var, source_object: self).match_to(self)
end

#query_as

Returns a Query object with the current node matched the specified variable name

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def query_as(node_var)
  self.class.query_as(node_var, false).where("ID(#{node_var})" => self.neo_id)
end