Updates the attribute identified by attr_name with the specified
value. Empty strings for Integer and
Float columns are turned into nil.
# File activerecord/lib/active_record/attribute_methods/write.rb, line 31
def write_attribute(attr_name, value)
name = attr_name.to_s
name = self.class.attribute_aliases[name] || name
name = @primary_key if name == "id" && @primary_key
@attributes.write_from_user(name, value)
end
