Can I tell activerecord not to convert the "datetime" data to objects on access?

Question

I have code that just accesses the datetime field, so activerecord will automatically convert it to a Time object when I read it:

@some_appointment.some_time

The problem is that sometimes the "some_time" datetime column has bad data. "0209-12-20" instead of "2009-12-20". This leads to the fact that Ruby throws the error "the year is too big for the marshal" only from access, and I can not understand that the error is no exception. Given that there is some invalid data in my database, I want to try to make the time object itself by reading the datetime string and using Time.parse so that I can catch an exception if the time cannot be parsed. How can i do this? Is there a better way?

Answer 1

You can try attribute_for_inspectas in:

SomeModel.find(:first).attribute_for_inspect 'some_time'
#=> ""2009-02-23 23:15:24""

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Answer 2

, , , attributes_before_type_cast? , Rails , , Rails , .

:

@some_appointment.attributes_before_type_cast['some_time']

Answer 3

You could override the default accessors like this in your model:

def some_time
  read_attribute(:some_time)
  rescue
    # Try to parse this guy
    self.some_time_before_type_cast
end