So I just started my first rails project yesterday. I had two many-to-many (has_and_belongs_to_many) relationships in my application. I had one between models games and teams and another between models stats and results. This was all working just fine by creating the join table myself with a migration.
I then decided that I did not want to have the stats/results relationship be many-to-many but what to many instead so I ran the following migration and switched the relationships to has_many and belongs_to:
class FixingResultStatRelationship < ActiveRecord::Migration def self.up add_column :results, :stat_id, :integer drop_table 'results_stats' end def self.down remove_column :results, :stat_id create_table 'results_stats', :id => false do |t| t.column 'result_id', :integer t.column 'stat_id', :integer end add_index 'results_stats', 'result_id' add_index 'results_stats', 'stat_id' end end Then when I do this it not only does the new one-to-many relationship not work as I get a NoMethodError when calling say Result.find(0).stat but now my previous working many-to-many relationship with games and teams is now broken as well. I used to be able to call Game.fine(0).teams just find and see the results and now I get a NoMethodError as well. Any thoughts? I am quite lost and any help would be great.
I just realized that I had belongs_to :stats rather than the singular stat. I fixed this and reloaded the server and everything works fine now. Thanks anyways though Abie.