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module ActiveRecord
module AttributeMethods
module Query
extend ActiveSupport::Concern
included do
attribute_method_suffix "?"
end
def query_attribute(attr_name)
value = self[attr_name]
case value
when true then true
when false, nil then false
else
column = self.class.columns_hash[attr_name]
if column.nil?
if Numeric === value || value !~ /[^0-9]/
!value.to_i.zero?
else
return false if ActiveRecord::ConnectionAdapters::Column::FALSE_VALUES.include?(value)
!value.blank?
end
elsif column.number?
!value.zero?
else
!value.blank?
end
end
end
private
# Handle *? for method_missing.
def attribute?(attribute_name)
query_attribute(attribute_name)
end
end
end
end
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