On Oct 1, 2010, at 2:19 AM, Bob Smith wrote:
In my view, I do a
<%= render :partial => 'person', :collection =>
@household.people.sort_by(&:birthday) %>
household has a has_many relationship with person, and this works fine
until...
an errant user creates a new person and tries to save without filling
the fields(day, month, and year). After this the birthday field is
created and fails horribly. Is there any way to delete blank records
as part of the validation??
Thanks
Bob <[email protected]>
While I'm not contradicting the responses from Michael and pepe, I'm
going to lead you a different way.
First, I'll suggest that you don't have this level of code in your
view. Put a method on your Household model that returns the people in
the proper order. Your view code then becomes:
<%= render :partial => 'person', :collection =>
@household.people_by_birthday %>
(Which in later version of Rails can be
just <%= render @household.people_by_birthday %> )
Second, use one of the methods given by Michael or pepe to keep
persons having invalid (or missing) birthdays from being created.
Finally, as a possible implementation of the #people_by_birthday
method (note that I'm assuming that there's a #name method on which to
sort the persons having no birthday):
class Household
def people_by_birthday
list = self.people.partition {|person| person.birthday.blank?}
list[1].sort_by(&:birthday) + list[0].sort_by(&:name)
end
end
-Rob
Rob Biedenharn
[email protected] http://AgileConsultingLLC.com/
[email protected] http://GaslightSoftware.com/
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