Sha256: e0f7e1b6459769e520cb3993e5e6d1c14c4599f6a58b30c1e2dabda3242ac3d8
Contents?: true
Size: 1.62 KB
Versions: 7
Compression:
Stored size: 1.62 KB
Contents
module Neo4j
module Rails
module Relationships
# TODO, reuse for incoming relationships ?
class OutgoingRelationship #:nodoc:
include Enumerable
def initialize(from_node, mapper)
@from_node = from_node
@mapper = mapper
end
def <<(other)
@mapper.create_relationship_to(@from_node, other)
self
end
def size
@mapper.dsl.all_relationships(@from_node).size
end
def each(&block)
@mapper.each_node(@from_node, :outgoing, &block)
end
end
def write_changed_relationships #:nodoc:
@relationships.each_value do |mapper|
mapper.persist
end
end
def valid_relationships? #:nodoc:
!@relationships.values.find {|mapper| !mapper.valid?}
end
def _decl_rels_for(type) #:nodoc:
dsl = super
@relationships[type] ||= Mapper.new(type, dsl, self)
end
def clear_relationships #:nodoc:
@relationships = {}
end
# If the node is persisted it returns a Neo4j::NodeTraverser
# otherwise create a new object which will handle creating new relationships in memory.
# If not persisted the traversal method like prune, expand, filter etc. will not be available
#
# See, Neo4j::NodeRelationship#outgoing (when node is persisted) which returns a Neo4j::NodeTraverser
#
def outgoing(rel_type)
if persisted?
super
else
dsl = _decl_rels_for(rel_type)
OutgoingRelationship.new(self, dsl)
end
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems