associations - How can I count and filter on an associated record in Rails? -

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company has_many contacts

company has_many contactemails :through => :contacts

contactemail belongs_to contact

contact belongs_to company

contact has_many contactemails

for specific instance of company, how can find contactemails , filter on attribute, such date_sent?

i tried company.contactemails don't think can make association.

you want use named scope this. works rails 2.3, wouldn't change rails 3.

i haven't tested it, should work. conditions may need tweaked proper date comparison.

contactemail < activerecord::base   named_scope :by_date_sent, lambda {|d| { :conditions => ["date_sent = ?", d]}} end  @company.contact_emails.by_date_sent(date.today)

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