Well, you can't because you're not calling an instance method on every
element of your array. data_file_name works because each ContractFile
object has an attribute called data_file_name. So, you can call map() on
files and collect every filename by specifying data_file_name. In contrast,
url is an instance method you have to call on every PaperClip attachment
and you can't give it as a symbol. You have to specify it this way:
> files.collect { |f| f.data.url }2012/1/2 Nikolay <[email protected]> > #gem 'rails', '3.0.9' > #gem "paperclip", "~> 2.0" > > rails console > >contract = Contract.first > => #<Contract id: 1, . . . > >files = contract.contract_files > => [#<ContractFile id: 1, contract_id: 1, . . . > >files.first.data.url > => "/system/data/1/original/logo.png?1325513082" > > files.map(&:data_file_name).each do |key| key end > => ["logo.png", "newyearseve-2011-res.jpg", nil] > #IT WORKS FINE! > > > > files.map(&:data.url).each do |key| key end > => NoMethodError: undefined method `url' for :data:Symbol > #IT DOESN'T WORK > > Can you explain how to get access to "data.url" in has_many model? > > > > > -- > 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 this group at > http://groups.google.com/group/rubyonrails-talk?hl=en. > > -- 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 this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
