Hello everyone,
I’m having a bit of difficulty finding out the proper way to mix in code
that I put into the lib/ directory for Rails 2.3.5.
I have several models that require phone validation. I had at least
three
models that used the same code, so I wanted to keep things DRY and moved
it
out to the lib/ directory. I used to have code like this in each model:
validate :phone_is_valid
Then I’d have a phone_is_valid method in the model:
protected
def phone_is_valid
# process a bunch of logic
errors.add_to_base("invalid phone") if validation failed
end
I moved this code out into lib/phones/ and in lib/phones I have
lib/phones/phone_validation.rb, and in there I copy pasted the
phone_is_valid method.
My question is, how do I mix this into all of my models now? And does my
validate :phone_is_valid method remain the same or does that change? I
want
to make sure that the errors.add_to_base method continues to function as
it
did before while keeping everything DRY. obviously the following won’t
work:
validate :Phones::PhoneValidation::phone_is_valid(number)
I also created another file in lib/phones/ called
lib/phones/phone_normalize.rb. Again, many models need the value input
by
the user to be normalized. Meaning turn (555) 222-1212 to 5552221212 or
something similar. Can I invoke that simply by invoking
Phones::Phone_Normalize::normalize_method(number)?
I suppose I’m confused on the following:
- How to use the lib directory for validation of multiple models that
need
access to a particular validation method - How to use the lib directory for commonly shared methods that return
values
Thanks for the help,
Matthew.