On Thursday, April 24, 2014 5:35:08 PM UTC+2, Colin Law wrote:
>
> For those of us with less knowledge of how the internals of rails
> works could you provide a simple example of what you are attempting to
> achieve with dynamic class name in a association?
>
I can't speak for the OP, but in my case I needed something like:
class Report < ActiveRecord::Base
has_many :reports_subjects
has_many :subjects, through: :reports_subjects, class_name: ->(report) {
report.subjects_type }
def subjects_type
# divine required subject model class somehow
end
end
Of course, that won't fly since the class_name is evaluated purely as a
string deep down in the reflection and at that point, all knowledge of the
specific instances involved in an association has been discarded.
--
You received this message because you are subscribed to the Google Groups "Ruby
on Rails: Talk" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/rubyonrails-talk/1179691a-062d-4803-a5ac-daed66de7940%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
