Rails - Jul 2008 - Using ActiveRecord validations on a non ActiveRecord Model

Hi,

In order to keep code clean and well organized using MVC, I have created
a model which doesn''t inherit from ActiveRecord as it doesn''t
use the
database.

What I would like to do is use ActiveRecord validation such as
validates_presence_of and validates_format_of on the attributes of my
model without saving them. Actually if the object passes validation,
then it should be sent by email.

In my Rails model I tried to load the validations with:
--
require ''active_record''
--


But I keep getting the following error:
--
undefined method `validates_presence_of'' for Contact:Class
--


Best regards,
-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Argh, I finally managed to include the validations, but it seems 
ActiveRecord wants to save the model:
--
undefined method `save'' for class `Contact''
--

I am initializing the object with:
--
@contact = Contact.new
--

Isn''t it possible anymore to validate without saving? I found resources
on the Net, but their solutions didn''t work for me.
-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

I have found the following information : 
http://www.neeraj.name/639/validating-non-active-record-models

But I don''t like the way it was coded, I find it too complicated.
-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Fernando Perez wrote:
> Argh, I finally managed to include the validations, but it seems 
> ActiveRecord wants to save the model:
> --
> undefined method `save'' for class `Contact''
> --
> 
> I am initializing the object with:
> --
> @contact = Contact.new
> --
> 
> Isn''t it possible anymore to validate without saving? I found
resources
> on the Net, but their solutions didn''t work for me.
I don''t understand why when I define a "save" class method, I
still get
this error message. This is a Ruby problem, and it bugs me out that I 
can''t get my head around it.

I have:

class Contact
  def self.save
  end
end

And it still spits me out the same error message, as if I hadn''t
written
anything... Anyway I don''t understand why the validation wants to save 
the object, I never told it to.
-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

I think it''s calling Contact#save not Contact.save.

try:

class Contact
  def save; end
end

On Jul 14, 3:39 pm, Fernando Perez
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
> Fernando Perez wrote:
> > Argh, I finally managed to include the validations, but it seems
> > ActiveRecord wants to save the model:
> > --
> > undefined method `save'' for class `Contact''
> > --
>
> > I am initializing the object with:
> > --
> > @contact = Contact.new
> > --
>
> > Isn''t it possible anymore to validate without saving? I found
resources
> > on the Net, but their solutions didn''t work for me.
>
> I don''t understand why when I define a "save" class
method, I still get
> this error message. This is a Ruby problem, and it bugs me out that I
> can''t get my head around it.
>
> I have:
>
> class Contact
>   def self.save
>   end
> end
>
> And it still spits me out the same error message, as if I hadn''t
written
> anything... Anyway I don''t understand why the validation wants to
save
> the object, I never told it to.
> --
> Posted viahttp://www.ruby-forum.com/.
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

julian wrote:
> I think it''s calling Contact#save not Contact.save.
> 
> try:
> 
> class Contact
>   def save; end
> end
> 
> On Jul 14, 3:39�pm, Fernando Perez <rails-mailing-l...@andreas-s.net>
Hi julian,

I forgot to mention, but I tried both at the same time, and I still get 
the error. I think I''ll simply forget about AR''s validations
and have to
rewrite my own ones.
-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

On Jul 14, 2:18 pm, Fernando Perez
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
> Hi,
>
> In order to keep code clean and well organized using MVC, I have created
> a model which doesn''t inherit from ActiveRecord as it
doesn''t use the
> database.
>
> What I would like to do is use ActiveRecord validation such as
> validates_presence_of and validates_format_of on the attributes of my
> model without saving them. Actually if the object passes validation,
> then it should be sent by email.
>
Stumbled across http://www.neeraj.name/639/validating-non-active-record-models

Haven''t tried it myself, but worth a try.

Fred
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

I''m not entirely sure but validations in ActiveRecord appear to work
by using alias_method_chain on the base save method.  If you put up
your whole model we might get it working.  First of all though, make
sure the Contact#save method definition is before the include call so
that alias_method_chain has something to alias.

On Jul 14, 3:59 pm, Fernando Perez
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
> julian wrote:
> > I think it''s calling Contact#save not Contact.save.
>
> > try:
>
> > class Contact
> >   def save; end
> > end
>
> > On Jul 14, 3:39�pm, Fernando Perez
<rails-mailing-l...@andreas-s.net>
>
> Hi julian,
>
> I forgot to mention, but I tried both at the same time, and I still get
> the error. I think I''ll simply forget about AR''s
validations and have to
> rewrite my own ones.
> --
> Posted viahttp://www.ruby-forum.com/.
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

julian wrote:
> I''m not entirely sure but validations in ActiveRecord appear to
work
> by using alias_method_chain on the base save method.  If you put up
> your whole model we might get it working.  First of all though, make
> sure the Contact#save method definition is before the include call so
> that alias_method_chain has something to alias.
> 
> On Jul 14, 3:59 pm, Fernando Perez
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
@Fred: I already talked about that webpage, and said I didn''t like it. 
It looks like a lot of lines of code for getting a little feature to 
work.

@Julian: you are certainly right, my include was before the Contact#save 
definition.

In the mean time I have found this nifty little plugin:
http://agilewebdevelopment.com/plugins/activerecord_base_without_table

It works like a charm with Rails 2.1, and gives on top of validation, 
the ability to have a nicely crafted site wide error message.
-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

A little late to the party but I wrote this over 2  years ago:

http://www.bphogan.com/learn/pdf/tableless_contact_form.pdf

The plugin at
http://agilewebdevelopment.com/plugins/activerecord_base_without_tablefollows
the same idea and should work just fine.

On Mon, Jul 14, 2008 at 3:36 PM, Fernando Perez <
rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:
>
> julian wrote:
> > I''m not entirely sure but validations in ActiveRecord appear
to work
> > by using alias_method_chain on the base save method.  If you put up
> > your whole model we might get it working.  First of all though, make
> > sure the Contact#save method definition is before the include call so
> > that alias_method_chain has something to alias.
> >
> > On Jul 14, 3:59 pm, Fernando Perez
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
>
> @Fred: I already talked about that webpage, and said I didn''t like
it.
> It looks like a lot of lines of code for getting a little feature to
> work.
>
> @Julian: you are certainly right, my include was before the Contact#save
> definition.
>
> In the mean time I have found this nifty little plugin:
> http://agilewebdevelopment.com/plugins/activerecord_base_without_table
>
> It works like a charm with Rails 2.1, and gives on top of validation,
> the ability to have a nicely crafted site wide error message.
> --
> Posted via http://www.ruby-forum.com/.
>
> >
>
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Brian Hogan wrote:
> A little late to the party but I wrote this over 2  years ago:
> 
> http://www.bphogan.com/learn/pdf/tableless_contact_form.pdf
> 
> The plugin at
>
http://agilewebdevelopment.com/plugins/activerecord_base_without_tablefollows
> the same idea and should work just fine.
> 
> On Mon, Jul 14, 2008 at 3:36 PM, Fernando Perez <
Thank you Brian, your tutorial is very detailed and is a good wrap up of 
the subject.
-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---