Rails - Dec 2008 - Problem extending ActiveRecord with custom validations

I''m having a problem extending ActiveRecord with custom validations
based on the "Write Custom Validations" recipe from Advanced Rails
Recipes.  As far as I can tell, I''ve followed the instructions exactly
but for some reason this isn''t working and it''s driving me
crazy.
I''ve tried making the methods in the custom validations module class
methods (self.validates...) as well as the way they are below (which
is the way they are in the instructions).

Any suggestions?

Thanks!
Gavin

***
lib/custom_validations.rb

module CustomValidations
  def validates_phone(*attr_names)
    attr_names.each do |attr_name|
      validates_format_of attr_name,
            :with => /^[\(\)0-9\- \+\.]{10,20} *[extension\.]{0,9} *
[0-9]{0,5}$/i,
            :message => "invalid"
    end
  end
  def validates_email(*attr_names)
    attr_names.each do |attr_name|
      validates_format_of attr_name,
            :with => /(^([^@\s]+)@((?:[-_a-z0-9]+\.)+[a-z]{2,})$)|(^$)/
i,
            :message => "invalid"
    end
  end
end
ActiveRecord::Base.extend(CustomValidations)

***
config/environment.rb

# Be sure to restart your server when you modify this file

# Uncomment below to force Rails into production mode when
# you don''t control web/app server and can''t set it the proper
way
ENV[''RAILS_ENV''] ||= ''production''

#normal environment.rb stuff

end

require ''custom_validations''

***
models/user.rb

class User < ActiveRecord::Base
  validates_email   :email
end

***
error from console when starting server

/vendor/rails/activerecord/lib/active_record/base.rb:1667:in
`method_missing'': undefined method `validates_email'' for
#<Class:
0x31ac9c8> (NoMethodError)

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On 9 Dec 2008, at 19:05, gaveeno wrote:
>
> I''m having a problem extending ActiveRecord with custom
validations
> based on the "Write Custom Validations" recipe from Advanced
Rails
> Recipes.  As far as I can tell, I''ve followed the instructions
exactly
> but for some reason this isn''t working and it''s driving
me crazy.
> I''ve tried making the methods in the custom validations module
class
> methods (self.validates...) as well as the way they are below (which
> is the way they are in the instructions).
>
> Any suggestions?
>
Have you tried requiring it from an initializer, not the bottom of  
environment.rb ?

Fred
> Thanks!
> Gavin
>
> ***
> lib/custom_validations.rb
>
> module CustomValidations
>  def validates_phone(*attr_names)
>    attr_names.each do |attr_name|
>      validates_format_of attr_name,
>            :with => /^[\(\)0-9\- \+\.]{10,20} *[extension\.]{0,9} *
> [0-9]{0,5}$/i,
>            :message => "invalid"
>    end
>  end
>  def validates_email(*attr_names)
>    attr_names.each do |attr_name|
>      validates_format_of attr_name,
>            :with => /(^([^@\s]+)@((?:[-_a-z0-9]+\.)+[a-z]{2,})$)|(^$)/
> i,
>            :message => "invalid"
>    end
>  end
> end
> ActiveRecord::Base.extend(CustomValidations)
>
> ***
> config/environment.rb
>
> # Be sure to restart your server when you modify this file
>
> # Uncomment below to force Rails into production mode when
> # you don''t control web/app server and can''t set it the
proper way
> ENV[''RAILS_ENV''] ||= ''production''
>
> #normal environment.rb stuff
>
> end
>
> require ''custom_validations''
>
> ***
> models/user.rb
>
> class User < ActiveRecord::Base
>  validates_email   :email
> end
>
> ***
> error from console when starting server
>
> /vendor/rails/activerecord/lib/active_record/base.rb:1667:in
> `method_missing'': undefined method `validates_email'' for
#<Class:
> 0x31ac9c8> (NoMethodError)
>
> >

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Thanks Fred, that worked!  I created config/initializers/
custom_validations.rb and moved the require line there from the
environment.rb file.  It''s not clear to me why this works, and it
seems like it''s overkill to create a new file for this, but as long as
it works it''s cool with me.

Thanks again.
-Gavin

On Dec 9, 11:09 am, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> On 9 Dec 2008, at 19:05, gaveeno wrote:
>
>
>
> > I''m having a problem extending ActiveRecord with custom
validations
> > based on the "Write Custom Validations" recipe from Advanced
Rails
> > Recipes.  As far as I can tell, I''ve followed the
instructions exactly
> > but for some reason this isn''t working and it''s
driving me crazy.
> > I''ve tried making the methods in the custom validations
module class
> > methods (self.validates...) as well as the way they are below (which
> > is the way they are in the instructions).
>
> > Any suggestions?
>
> Have you tried requiring it from an initializer, not the bottom of  
> environment.rb ?
>
> Fred
>
> > Thanks!
> > Gavin
>
> > ***
> > lib/custom_validations.rb
>
> > module CustomValidations
> >  def validates_phone(*attr_names)
> >    attr_names.each do |attr_name|
> >      validates_format_of attr_name,
> >            :with => /^[\(\)0-9\- \+\.]{10,20} *[extension\.]{0,9} *
> > [0-9]{0,5}$/i,
> >            :message => "invalid"
> >    end
> >  end
> >  def validates_email(*attr_names)
> >    attr_names.each do |attr_name|
> >      validates_format_of attr_name,
> >            :with =>
/(^([^@\s]+)@((?:[-_a-z0-9]+\.)+[a-z]{2,})$)|(^$)/
> > i,
> >            :message => "invalid"
> >    end
> >  end
> > end
> > ActiveRecord::Base.extend(CustomValidations)
>
> > ***
> > config/environment.rb
>
> > # Be sure to restart your server when you modify this file
>
> > # Uncomment below to force Rails into production mode when
> > # you don''t control web/app server and can''t set it
the proper way
> > ENV[''RAILS_ENV''] ||= ''production''
>
> > #normal environment.rb stuff
>
> > end
>
> > require ''custom_validations''
>
> > ***
> > models/user.rb
>
> > class User < ActiveRecord::Base
> >  validates_email   :email
> > end
>
> > ***
> > error from console when starting server
>
> > /vendor/rails/activerecord/lib/active_record/base.rb:1667:in
> > `method_missing'': undefined method `validates_email''
for #<Class:
> > 0x31ac9c8> (NoMethodError)
--~--~---------~--~----~------------~-------~--~----~
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On Dec 9, 7:17 pm, gaveeno
<gavin.to...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Thanks Fred, that worked!  I created config/initializers/
> custom_validations.rb and moved the require line there from the
> environment.rb file.  It''s not clear to me why this works, and it
Short version: because it means the require will happen at the right
time.
Long version:
http://www.spacevatican.org/2008/11/21/environment-rb-and-requiring-dependencies

Fred
> seems like it''s overkill to create a new file for this, but as
long as
> it works it''s cool with me.
>
> Thanks again.
> -Gavin
>
> On Dec 9, 11:09 am, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
>
> > On 9 Dec 2008, at 19:05, gaveeno wrote:
>
> > > I''m having a problem extending ActiveRecord with custom
validations
> > > based on the "Write Custom Validations" recipe from
Advanced Rails
> > > Recipes.  As far as I can tell, I''ve followed the
instructions exactly
> > > but for some reason this isn''t working and it''s
driving me crazy.
> > > I''ve tried making the methods in the custom validations
module class
> > > methods (self.validates...) as well as the way they are below
(which
> > > is the way they are in the instructions).
>
> > > Any suggestions?
>
> > Have you tried requiring it from an initializer, not the bottom of  
> > environment.rb ?
>
> > Fred
>
> > > Thanks!
> > > Gavin
>
> > > ***
> > > lib/custom_validations.rb
>
> > > module CustomValidations
> > >  def validates_phone(*attr_names)
> > >    attr_names.each do |attr_name|
> > >      validates_format_of attr_name,
> > >            :with => /^[\(\)0-9\- \+\.]{10,20}
*[extension\.]{0,9} *
> > > [0-9]{0,5}$/i,
> > >            :message => "invalid"
> > >    end
> > >  end
> > >  def validates_email(*attr_names)
> > >    attr_names.each do |attr_name|
> > >      validates_format_of attr_name,
> > >            :with =>
/(^([^@\s]+)@((?:[-_a-z0-9]+\.)+[a-z]{2,})$)|(^$)/
> > > i,
> > >            :message => "invalid"
> > >    end
> > >  end
> > > end
> > > ActiveRecord::Base.extend(CustomValidations)
>
> > > ***
> > > config/environment.rb
>
> > > # Be sure to restart your server when you modify this file
>
> > > # Uncomment below to force Rails into production mode when
> > > # you don''t control web/app server and can''t
set it the proper way
> > > ENV[''RAILS_ENV''] ||=
''production''
>
> > > #normal environment.rb stuff
>
> > > end
>
> > > require ''custom_validations''
>
> > > ***
> > > models/user.rb
>
> > > class User < ActiveRecord::Base
> > >  validates_email   :email
> > > end
>
> > > ***
> > > error from console when starting server
>
> > > /vendor/rails/activerecord/lib/active_record/base.rb:1667:in
> > > `method_missing'': undefined method
`validates_email'' for #<Class:
> > > 0x31ac9c8> (NoMethodError)
--~--~---------~--~----~------------~-------~--~----~
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Thanks Fred, interesting blog post!

On Dec 9, 11:40 am, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> On Dec 9, 7:17 pm, gaveeno
<gavin.to...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > Thanks Fred, that worked!  I created config/initializers/
> > custom_validations.rb and moved the require line there from the
> > environment.rb file.  It''s not clear to me why this works,
and it
>
> Short version: because it means the require will happen at the right
> time.
> Long
version:http://www.spacevatican.org/2008/11/21/environment-rb-and-requiring-d...
>
> Fred
>
> > seems like it''s overkill to create a new file for this, but
as long as
> > it works it''s cool with me.
>
> > Thanks again.
> > -Gavin
>
> > On Dec 9, 11:09 am, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > wrote:
>
> > > On 9 Dec 2008, at 19:05, gaveeno wrote:
>
> > > > I''m having a problem extending ActiveRecord with
custom validations
> > > > based on the "Write Custom Validations" recipe
from Advanced Rails
> > > > Recipes.  As far as I can tell, I''ve followed the
instructions exactly
> > > > but for some reason this isn''t working and
it''s driving me crazy.
> > > > I''ve tried making the methods in the custom
validations module class
> > > > methods (self.validates...) as well as the way they are
below (which
> > > > is the way they are in the instructions).
>
> > > > Any suggestions?
>
> > > Have you tried requiring it from an initializer, not the bottom
of  
> > > environment.rb ?
>
> > > Fred
>
> > > > Thanks!
> > > > Gavin
>
> > > > ***
> > > > lib/custom_validations.rb
>
> > > > module CustomValidations
> > > >  def validates_phone(*attr_names)
> > > >    attr_names.each do |attr_name|
> > > >      validates_format_of attr_name,
> > > >            :with => /^[\(\)0-9\- \+\.]{10,20}
*[extension\.]{0,9} *
> > > > [0-9]{0,5}$/i,
> > > >            :message => "invalid"
> > > >    end
> > > >  end
> > > >  def validates_email(*attr_names)
> > > >    attr_names.each do |attr_name|
> > > >      validates_format_of attr_name,
> > > >            :with =>
/(^([^@\s]+)@((?:[-_a-z0-9]+\.)+[a-z]{2,})$)|(^$)/
> > > > i,
> > > >            :message => "invalid"
> > > >    end
> > > >  end
> > > > end
> > > > ActiveRecord::Base.extend(CustomValidations)
>
> > > > ***
> > > > config/environment.rb
>
> > > > # Be sure to restart your server when you modify this file
>
> > > > # Uncomment below to force Rails into production mode when
> > > > # you don''t control web/app server and
can''t set it the proper way
> > > > ENV[''RAILS_ENV''] ||=
''production''
>
> > > > #normal environment.rb stuff
>
> > > > end
>
> > > > require ''custom_validations''
>
> > > > ***
> > > > models/user.rb
>
> > > > class User < ActiveRecord::Base
> > > >  validates_email   :email
> > > > end
>
> > > > ***
> > > > error from console when starting server
>
> > > > /vendor/rails/activerecord/lib/active_record/base.rb:1667:in
> > > > `method_missing'': undefined method
`validates_email'' for #<Class:
> > > > 0x31ac9c8> (NoMethodError)
--~--~---------~--~----~------------~-------~--~----~
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