In a popular Rails book: http://books.google.com/books?id=slwLAqkT_Y0C&pg=PT366&lpg=PT366&dq=%22validates_associated+in+conjunction+with+validates_presence_of%22&source=bl&ots=9bZwHNjzvG&sig=aTN0WnknjzZ0WfRd9PeJGxQSAEU&hl=en&sa=X&ei=RagYUM_zH4T89gTW_YDwCw&ved=0CC8Q6AEwAA#v=onepage&q=%22validates_associated%20in%20conjunction%20with%20validates_presence_of%22&f=false
it states that if want to make sure that the association is valid on a belongs_to, that is, make sure the parent is valid, then you use validates_associated in conjunction with validates_presence_of: class Project < ActiveRecord::Base has_many :tasks accepts_nested_attributes_for :tasks end class Task < ActiveRecord::Base belongs_to :project validates_presence_of :project_id validates_associated :project end Unfortunately, this raises an issue because if the project validation fails, then it won't have an id, and then when Rails goes to validate the tasks, the task in turn will fail validation because they won't have a project_id. So why would the book suggest this? Or is it the accepts_nested_attributes_for that is causing the above behavior? thanks for response -- 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 https://groups.google.com/groups/opt_out.

