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samedayentries
2006 Jan 12
0
Multi Row validation... or running queries within Validate function?
...to perform a query from within a validate function?
I need to verify that the sum of several rows does not exceed a certain
value eg:
class Entry < ActiveRecord::Base
belongs_to :day
belongs_to :project
def validate
totalhours = hours
samedayentries = self.find_by_day_id(day_id)
samedayentries.each do |i|
totalhours += i[:hours] unless (id == i[:id])
end
errors.add_to_base( "You cannot enter more than 24 hours
in a day.") if totalhours > 24...