I''m new to ruby and rails and as a result am a bit lost on implementing a one to many relationship. In my DB I have 2 tables contents and locations, contents contains the foreign key location_id. I generated a content and a location model using rails scripts and then edited the models as follows class Content < ActiveRecord::Base has_one :location end class Location < ActiveRecord::Base belongs_to :content end When I attempt to access content.location I get this error |RuntimeError: ERROR C42703 Mcolumn locations.content_id does not exist Fparse_func.c L1036 Runknown_attribute: SELECT * FROM locations WHERE (locations.content_id = 9) LIMIT 1| I have been able to work around this by defining the association in the content class as has_many :location, :finder_sql => ''SELECT * FROM locations WHERE locations.id = #{location_id}'' I attempted defining this association as has_one, but I am then not able to overwrite finder_sql. I am hoping someone can explain a few things to me. Firstly, why does has_one expect locations to contain the content_id, since it would require improper modeling in the DB? Secondly, how do I properly associate the objects in Rails and overwrite the location find method? Thanks,