Hi All
I have two "little" issues with my rails app that I am hopping
somebody could shed some light on. Here is the first one:
Two models, a and b, both have a description attribute (varchar(255))
In a function that assigns each attribute from one model to the other,
this statement fails with NoMethodError: description
a.description = b.description
yet the following code works just fine:
warn a.description
warn b.description
s = b.description
a.description = s
I just don''t get it why direct assignment fails...
The second issue has to do with model pluralization. Two Models: Event
and EventCategory when declared like this:
class Event < ActiveRecord::Base
has_many :EventCategories, :dependent => :destroy
end
class EventCategory < ActiveRecord::Base
belongs_to :Event
end
everything but destroying an event works. Meaning: I can create new
events, categories, enumarate through eventcategories by using
event.EventCategories syntax etc. The ONLY thing that throws up is a
call to event.destroy. The actual error is constant missing
event_categories.
However, defined like this (notice the has_many), everything works just fine:
class Event < ActiveRecord::Base
has_many :event_categories, :dependent => :destroy
end
class EventCategory < ActiveRecord::Base
belongs_to :Event
end
Thanks
Rafael
--
http://www.bdcsoftware.com" - Automotive CRM
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Hi Rafael, On Sep 1, 2006, at 11:16 AM, Rafael Szuminski wrote:> I just don''t get it why direct assignment fails...Me neither. Everything spelled correctly and all that jazz?> The second issue has to do with model pluralization. Two Models: Event > and EventCategory when declared like this: > > class Event < ActiveRecord::Base > has_many :EventCategories, :dependent => :destroy > end > > class EventCategory < ActiveRecord::Base > belongs_to :Event > end > > everything but destroying an event works. Meaning: I can create new > events, categories, enumarate through eventcategories by using > event.EventCategories syntax etc. The ONLY thing that throws up is a > call to event.destroy. The actual error is constant missing > event_categories. > > However, defined like this (notice the has_many), everything works > just fine: > > class Event < ActiveRecord::Base > has_many :event_categories, :dependent => :destroy > end > > class EventCategory < ActiveRecord::Base > belongs_to :Event > endIdiomatically, the first argument to associations like has_many and belongs_to is a symbol from which Rails can infer the class name. You''re "getting lucky" with the belongs_to :Event. You might consider switching to belongs_to :event. If Rails can''t infer the class name, you can supply it with :class_name --~--~---------~--~----~------------~-------~--~----~ 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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
Thanks for the response. The first issue stopped happening soon after. I don''t know what fixed it, but it might have been server reboot or maybe it was a corrupted file (Uedid did prompt me to convert the file to DOS several times). Anyhow, it works now. Thanks Raf --~--~---------~--~----~------------~-------~--~----~ 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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---