On Feb 16, 3:21 am, Frederick Cheung <[email protected]> wrote: > On 15 Feb 2011, at 20:26, Mark <[email protected]> wrote: > > > > > > > In the Rails console: > > > irb> ts = TableSchema.find(:first, :conditions => "table_name = > > 'ENTITY_INST'") > > => [#<TableSchema ID: "88E65D47-621C-4DD6-BD6F-B9ABD93437F8", > > TABLE_NAME: "ENTITY_INST", DISPLAY_NAME: "Entity Instance" > > , TYPE: 1, DESCR: "All \"real things\" - by label", DELETED_FLAG: > > false, CLASS_ID: "085F7B9E-399D-48AD-A7A3-2AD48769F99B">] > > > irb> ts.my_objects > > NoMethodError: undefined method `my_objects' for #<Array:0x47c5830> > > > irb> c = Classification.last > > => #<Classification ID: "3E3A8383-8469-4847-8485-C6761B09FD46", > > CLASS_TEXT: "UNCLASSIFIED"> > > > irb> c.my_objects > > => [] > > > 1. Why is ts.my_objects not defined, but c.my_objects IS (apparently) > > defined? > > It looks like you're getting an array containing a single object back, rather > than that single object. Not sure why. >
No, I'm getting a "NoMethodError: undefined method `my_objects'" from "ts.my_objects", and I'm getting an empty array from c.my_objects". > > 2. c.my_objects should return dozens of MyObject objects. Why does it > > return none? > > Does the SQL generated (check the log file) look right? The SQL generated by c.my_objects is: SELECT [object].* FROM [object] WHERE ([object].class_id = NULL) Obviously, "class_id = NULL" is incorrect. My guess is that NULL is the return value of a call to c.id, and indeed, c.id return nil. c.ID returns the correct value. I think that I need to add a method called id that returns ID. Is that right? How do I do that? -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
