ruby on rails 3 - Mongoid undefined method `field' for []:Array error -


here's model:

class model   include mongoid::document    field :field_1, type: integer   field :field_2, type: integer   field :field_3, type: integer   field :field_4, type: integer    def success_rate     return 0 if self.field_2.nil? || self.field_2 == 0     return 0 if self.field_4.nil? || self.field_4 == 0     (1.0 * field_4/field_3) * 100   end end

the error happens when try following:

aux = model.where(field_1: user.id).first

however works fine in local machine, issue on server.

what doing wrong?

thanks

have tried using 'in' operator , wrapping user.id in array this: ['user.id']?


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