#181 ✓resolved
Gokul

save fails with runtime exception instead of returning false

Reported by Gokul | August 29th, 2011 @ 04:24 PM

class Posting < Neo4j::Rails::Relationship
   before_validation :do_some_checks
   def do_some_checks
      puts "CHECK"
      false
   end
end

class Blog < Neo4j::Rails::Model
  has_n(:posts).relationship(Posting)
end

if for a post, the callback chain is halted (do_some_checks returns false), then
blog.save throws a runtime exception instead of returning false.


jruby-1.6.3 :007 > blog.save
RuntimeError: Can't save outgoing id: 2250 start_node: 8 end_node: 9
type:posts, validation errors ? #

{mkd-extraction-cf3470256621d2d8c385b15d024f714f}

lib/neo4j/rails/relationships/storage.rb:147:in `persist'

{mkd-extraction-1295e34a737a60a2b16394b8a1a3c4a2}

lib/neo4j/rails/relationships/storage.rb:143:in `persist'

{mkd-extraction-cf3470256621d2d8c385b15d024f714f}

lib/neo4j/rails/relationships/relationships.rb:8:in
`write_changed_relationships'

{mkd-extraction-b59030e1bd9ba34a49928b93e71ff68c}

lib/neo4j/rails/relationships/relationships.rb:7:in
`write_changed_relationships

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Neo4j.rb is a graph database framework for JRuby.

It provides:

* Mapping of ruby objects to nodes in networks rather than in tables.
* Storage of ruby object to a file system.
* Fast traversal of relationships between nodes in a hugh node space.
* Transaction with rollbacks support.
* Indexing and quering of ruby objects.
* Integration with Rails

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