An entry can only belong to a category right? If this is the case you don't need this many-to-many association. You just have to:
class Category < ActiveRecord::Base has_many :entries end class Entry < ActiveRecord::Base belongs_to :user belongs_to :category end This will let you do: my_entry.category.name my_category.entry If you want to keep working with that model then you have an error in your query. Using :include in finders will modify the structure of your SQL query. So you have to refer to table names in conditions like this: :conditions => ['users.user_id = 1'] On Tue, Sep 23, 2008 at 2:00 PM, ressister <[EMAIL PROTECTED]> wrote: > > I'm having trouble with three models that need to play nice together: > > - entry <- stores diary entries > - entry_category <- links a diary entry to a category (entry_id, > category_id) > - category <- list of category names and attributes > > I want to be able to :include => :categories when I perform a find, > but I'm not sure if I have the model associations wrong or if my find > syntax is wrong or both? An entry should only be able to be a part of > one category. > > Here are the models: > > class EntryCategory < ActiveRecord::Base > belongs_to :entry > belongs_to :category > end > > class Category < ActiveRecord::Base > has_many :entry_categories > has_many :entries, :through => :entry_categories > end > > class Entry < ActiveRecord::Base > belongs_to :user > has_one :entry_category > has_one :category, :through => :entry_category > end > > I want to sum the price of all entries and include the category name. > I can get all the entries grouped properly like so.... > > @entries = Entry.sum(:price, :conditions => ['user_id = 1'], :include > => :entry_category, :group => 'entry_categories.category_id') > > ...how do I also get the category.name? If I try and include > categories, the query doesn't work which makes me think i have a > problem with my model associations. > > Any help would be greatly appreciated. > > Thanks, > -Alex > > > -- ANDRES RODRIGUEZ E Electronic Engineer Software Developer IT Consultant US Phone: (305) 853-8356 Primary Mobile: +57-300-2006186 Secondary Mobile: +57-314-7939859 --~--~---------~--~----~------------~-------~--~----~ 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 rubyonrails-talk@googlegroups.com 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 -~----------~----~----~----~------~----~------~--~---
