Returning hashes from Cypher within transactions causes errors

[subvertallchris]

Since mapped_rest_data is a hash, it treats it like Cypher object and tries to add an id, pull apart its rows, etc,...

Failure/Error: post api, data_hash, session_hash
     NoMethodError:
       undefined method `split' for nil:NilClass
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:152:in `add_transaction_entity_id'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:90:in `hash_value_as_object'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:79:in `map_row_value'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:71:in `block (2 levels) in row_pair_in_struct'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:70:in `each_pair'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:70:in `block in row_pair_in_struct'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:69:in `tap'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:69:in `row_pair_in_struct'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:62:in `block (2 levels) in to_node_enumeration'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:41:in `block in each'

Fixing that results in...

Failure/Error: post api, data_hash, session_hash
     NoMethodError:
       undefined method `[]' for nil:NilClass
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:133:in `first_data'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_session.rb:179:in `_query_or_fail'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_node.rb:98:in `labels'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-72320a3b817e/lib/neo4j/active_node/node_wrapper.rb:26:in `load_classes_from_labels'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-72320a3b817e/lib/neo4j/active_node/node_wrapper.rb:17:in `class_to_wrap'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-72320a3b817e/lib/neo4j/active_node/node_wrapper.rb:8:in `wrapper'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:99:in `hash_value_as_object'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:79:in `map_row_value'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:71:in `block (2 levels) in row_pair_in_struct'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:70:in `each_pair'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:70:in `block in row_pair_in_struct'
     # /Users/cgrigg/.rvm/gems/ruby-2.2.2/bundler/gems/neo4j-core-64035162aaef/lib/neo4j-server/cypher_response.rb:69:in `tap'

I'll take care of it but want to log it in the meantime.

[subvertallchris]

Interestingly enough, I found that embedded didn't support returning hashes from Cypher at all!