search for: dest_type

...class, but I don''t know if Ruby can inject a variable and use it as a name So, obj1 connects to obj3 connects to obj2 obj2 is of Model ''x'', obj1 is of Model ''y'', obj3 is of Model ''z''. And the columns would be: src | dest | src_type | dest_type Where src_type (and dest_type) is the name of a Model Any ideas on how to do this? Any speculations would be welcomed as I am stuck! -- - Nic

Hello, I encouter a problem when i try to do "rake db:migrate": rake aborted! can''t convert Hash into String Here is the trace result: ** Invoke db:migrate (first_time) ** Invoke environment (first_time) ** Execute environment rake aborted! can''t convert Hash into String /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/fileutils.rb:1408:in