Hello guys, I''m trying to validate the input of an integer from a form, here is a bit of code: This is the definition of the offending column in the migration: t.column :position, :integer, :default => 0, :limit => 3, :null => false And here is how I try to validate it inside de model: validates_length_of :position, :within => 1..3 And this is the exception I get when I submit the form: NoMethodError private method `split'' called for 0:Fixnum Maybe I''m not supposed to validate the length of integers at all? -- 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''m experimenting with Rails in these days, I came across another problem: In my model Provider I have the following validation: validates_length_of :telephone, :in => 7..32, :allow_nil => true What I try to do is: * If you input anything it gets validated against the length, BUT you could also enter nothing, and it would be ok. How do I accomplish this? Thanks in advance for your help. -- 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 -~----------~----~----~----~------~----~------~--~---
All integers are the same length 4 bytes. So no you don''t verify the length of them. But you can validate that they fall within a particular range of values if you want. On Jul 24, 6:28 pm, Adrian De la cruz <rails-mailing-l...@andreas- s.net> wrote:> Hello guys, I''m trying to validate the input of an integer from a form, > here is a bit of code: > > This is the definition of the offending column in the migration: > t.column :position, :integer, :default => 0, :limit => 3, :null => false > > And here is how I try to validate it inside de model: > validates_length_of :position, :within => 1..3 > > And this is the exception I get when I submit the form: > NoMethodError > private method `split'' called for 0:Fixnum > > Maybe I''m not supposed to validate the length of integers at all? > -- > 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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
What is your question? The validation you show should be correct. It should do exactly what you want. If the field is left empty allow_nil => true should skip validation of length. On Jul 24, 6:57 pm, Adrian De la cruz <rails-mailing-l...@andreas- s.net> wrote:> I''m experimenting with Rails in these days, I came across another > problem: > > In my model Provider I have the following validation: > validates_length_of :telephone, :in => 7..32, :allow_nil => true > > What I try to do is: > * If you input anything it gets validated against the length, BUT you > could also enter nothing, and it would be ok. How do I accomplish this? > > Thanks in advance for your help. > -- > 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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Robert Walker wrote:> What is your question? > > The validation you show should be correct. It should do exactly what > you want. If the field is left empty allow_nil => true should skip > validation of length. > > On Jul 24, 6:57 pm, Adrian De la cruz <rails-mailing-l...@andreas-Well, the problem is it doesn''t skip the validation. If I leave it blank Rails complains with this message: ActiveRecord::RecordInvalid Validation failed: Telephone is too short (it should be 7 characters minimum) -- 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 -~----------~----~----~----~------~----~------~--~---
It seems as though you can only use validates_length_of with strings. So you can either do what a previous poster mentioned, and use the following: # this will ensure that the position value is between 1 and 3 characters validates_length_of :position, :within => 1..999 or you can do something like this: def validate errors.add(:position, "should be between 1 and 3 characters in length") if position.to_s.length < 1 or position.to_s.length > 3 end Adam On 7/24/07, Adrian De la cruz <rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:> > Robert Walker wrote: > > What is your question? > > > > The validation you show should be correct. It should do exactly what > > you want. If the field is left empty allow_nil => true should skip > > validation of length. > > > > On Jul 24, 6:57 pm, Adrian De la cruz <rails-mailing-l...@andreas- > > Well, the problem is it doesn''t skip the validation. If I leave it blank > Rails complains with this message: > ActiveRecord::RecordInvalid > Validation failed: Telephone is too short (it should be 7 characters > minimum) > -- > 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 -~----------~----~----~----~------~----~------~--~---
On 7/25/07, Philip Hallstrom <rails-SUcgGwS4C16SUMMaM/qcSw@public.gmane.org> wrote:> > > It seems as though you can only use validates_length_of with strings. > > So you can either do what a previous poster mentioned, and use the > > following: > > > > # this will ensure that the position value is between 1 and 3 characters > > validates_length_of :position, :within => 1..999 > > What about negative values? -22 is 3 chars, but would fail on the above.. > ? I admit I don''t know what hte original problem was... :)yeah good point, it was also supposed to be validates_inclusion_of instead of validates_length_of. You could use :within => -999..999 if you wanted then, or use the manual validation with to_s (and take into account any leading negative signs). Adam --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
> It seems as though you can only use validates_length_of with strings. > So you can either do what a previous poster mentioned, and use the > following: > > # this will ensure that the position value is between 1 and 3 characters > validates_length_of :position, :within => 1..999What about negative values? -22 is 3 chars, but would fail on the above.. ? I admit I don''t know what hte original problem was... :)> > or you can do something like this: > > def validate > errors.add(:position, "should be between 1 and 3 characters in > length") if position.to_s.length < 1 or position.to_s.length > 3 > end > > Adam > > On 7/24/07, Adrian De la cruz <rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote: >> >> Robert Walker wrote: >>> What is your question? >>> >>> The validation you show should be correct. It should do exactly what >>> you want. If the field is left empty allow_nil => true should skip >>> validation of length. >>> >>> On Jul 24, 6:57 pm, Adrian De la cruz <rails-mailing-l...@andreas- >> >> Well, the problem is it doesn''t skip the validation. If I leave it blank >> Rails complains with this message: >> ActiveRecord::RecordInvalid >> Validation failed: Telephone is too short (it should be 7 characters >> minimum) >> -- >> 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 -~----------~----~----~----~------~----~------~--~---
Thanks a lot for your help guys, as for the second problem I described,
I found the solution to be:
validates_length_of :telephone, :within => 8..24, :allow_nil => true,
:if => Proc.new{ | client | client.telephone != '''' }
What this validation does is: if something is entered in the form then
it gets validates, if nothing is entered in the form it gets skipped. ;)
--
Posted via http://www.ruby-forum.com/.
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On 7/25/07, Adrian De la cruz <rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:> > Thanks a lot for your help guys, as for the second problem I described, > I found the solution to be: > > validates_length_of :telephone, :within => 8..24, :allow_nil => true, > :if => Proc.new{ | client | client.telephone != '''' } > > What this validation does is: if something is entered in the form then > it gets validates, if nothing is entered in the form it gets skipped. ;)if the telephone column definition in your database is set to default to null, you shouldn''t need the :if => Proc.new ... line. That''s what :allow_nil => true is for. It doesn''t execute the validation if the field was empty. Adam --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
Adam Cohen wrote:> On 7/25/07, Adrian De la cruz <rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote: >> >> Thanks a lot for your help guys, as for the second problem I described, >> I found the solution to be: >> >> validates_length_of :telephone, :within => 8..24, :allow_nil => true, >> :if => Proc.new{ | client | client.telephone != '''' } >> >> What this validation does is: if something is entered in the form then >> it gets validates, if nothing is entered in the form it gets skipped. ;) > > if the telephone column definition in your database is set to default > to null, you shouldn''t need the :if => Proc.new ... line. That''s what > :allow_nil => true is for. It doesn''t execute the validation if the > field was empty. > > AdamWell, that was exactly why I posted my question in the first place, I did too expect the application to behave that way, but it doesn''t. Here is the column definition for the telephone field: t.column :telephone, :string, :limit => 24, :null => true If you only validates like this in your model, it won''t work as expected: validates_length_of :telephone, :within => 8..24, :allow_nil => true After further investigation I realized that the problem is the form, isn''t sending a nil value back, but a blank one e.g. ''''. And that''s the problem. I even read about a patch regarding this problem, it suggest that the validates_length_of method should be able to take an option called: ":allow_blank" that does what the Proc.new code does right now... but it seems it hasn''t been commited yet :( -- 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 -~----------~----~----~----~------~----~------~--~---
On 7/25/07, Adrian De la cruz <rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:> > Adam Cohen wrote: > > On 7/25/07, Adrian De la cruz <rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote: > >> > >> Thanks a lot for your help guys, as for the second problem I described, > >> I found the solution to be: > >> > >> validates_length_of :telephone, :within => 8..24, :allow_nil => true, > >> :if => Proc.new{ | client | client.telephone != '''' } > >> > >> What this validation does is: if something is entered in the form then > >> it gets validates, if nothing is entered in the form it gets skipped. ;) > > > > if the telephone column definition in your database is set to default > > to null, you shouldn''t need the :if => Proc.new ... line. That''s what > > :allow_nil => true is for. It doesn''t execute the validation if the > > field was empty. > > > > Adam > > Well, that was exactly why I posted my question in the first place, I > did too expect the application to behave that way, but it doesn''t.I should clarify: using :allow_nil => true won''t work with a string attribute, only with an integer type attribute. So using :allow_nil => true would''ve worked for your initial question where you were trying to validate the length of an integer (position column), however, the problem in that instance was that validates_length_of cannot be used with an integer. And as for the problem with the telephone number validation, since that''s a string, you can''t use :allow_nil => true with it. So looks like you''re back to your solution of using the :if condition with string type attributes, at least until that patch is committed.. Adam --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
Yeah, thanks for all the help you provided. As for integers, the validates_inclusion_of does what I wanted to do with integers, and better, because you can specify the exact range to cover. Regards, Adrian. -- 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 -~----------~----~----~----~------~----~------~--~---
Adam Cohen wrote:> cannot be used with an integer. And as for the problem with the > telephone number validation, since that''s a string, you can''t use > :allow_nil => true with it.Just to clear up things, yes you can use :allow_nil => true with strings, it allows to do stuff like this in your tests: p = Provider.create( :name=>"John", :nickname=>"hammer" ) If you didn''t have :allow_nil => true, or have set it to false, the line of code above would have triggered a validation error, and you would be forced to do something like this instead: p = Provider.create( :name=>"John", :nickname=>"hammer", :telephone => '''' ) Regards, Adrian. -- 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 -~----------~----~----~----~------~----~------~--~---
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