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manoj c.

2012-Jul-20 10:47 UTC

Validation in ruby on rails

Hi,
   Please Help me,in a model i gave like validates_presence_of :name,now
i
need to display error message like "name is required" while clicking
form submission button when leaving text box for name as empty,how
to do this ??

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Rafi A

2012-Jul-20 10:53 UTC

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Re: Validation in ruby on rails

Manoj,

try this in the model:

validates_presence_of :name, :message => "can''t be blank"

Regards,
Seeni Rafiyullah Khan A,
Skype id: rafiyullah.railsfactory | +91 9786832092 |
rafiglitz-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
<srkhan-E9Vo0z8jLxLQT0dZR+AlfA@public.gmane.org>*In Every moment, thank
God.*



On Fri, Jul 20, 2012 at 4:17 PM, manoj c.
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> Hi,
>    Please Help me,in a model i gave like validates_presence_of :name,now
> i
> need to display error message like "name is required" while
clicking
> form submission button when leaving text box for name as empty,how
> to do this ??
>
> --
> Posted via http://www.ruby-forum.com/.
>
> --
> You received this message because you are subscribed to the Google Groups
> "Ruby on Rails: Talk" group.
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>
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>
>
>
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manoj c.

2012-Jul-23 04:28 UTC

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Re: Validation in ruby on rails

Rafi A wrote in post #1069463:> Manoj,
>
> try this in the model:
>
> validates_presence_of :name, :message => "can''t be
blank"
>
> Regards,
> Seeni Rafiyullah Khan A,
> Skype id: rafiyullah.railsfactory | +91 9786832092 |
rafiglitz-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
> <srkhan-E9Vo0z8jLxLQT0dZR+AlfA@public.gmane.org>*In Every moment,
thank God.*
Thanks a lot sir.
 regards,
 manoj

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Ace Suares

2012-Jul-23 11:29 UTC

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Re: Validation in ruby on rails

Dear sirs, 

I dont''t think the addition of :message => "can''t be
blank" does make a
difference.\

Validations have their own strings already packed, in en.yml in the 
active_model gem. In the console (rails c) you can try it out (assuming 
your model is named ''Person''):

p=Person.new
p.valid?
p.errors
# or p.errors[:name]

You will see that it will show a message "can''t be blank"
also when you
don''t'' specify :message in the validation!

So, these messages are already generated, now you want to show them, look 
here: 
http://guides.rubyonrails.org/active_record_validations_callbacks.html#displaying-validation-errors-in-the-view
for documentation.

Also, <shameless plug>have a look at  validation_hints gem 
(https://github.com/acesuares/validation_hints) which helps you display 
helpful context sensitive messages for form fields</shameless plug>!

Cheers,
ace

On Friday, July 20, 2012 6:47:20 AM UTC-4, Ruby-Forum.com User
wrote:>
> Hi, 
>    Please Help me,in a model i gave like validates_presence_of :name,now 
> i 
> need to display error message like "name is required" while
clicking
> form submission button when leaving text box for name as empty,how 
> to do this ?? 
>
> -- 
> Posted via http://www.ruby-forum.com/. 
>
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manoj c.

2012-Jul-24 10:42 UTC

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Re: Validation in ruby on rails

Ace S. wrote in post #1069767:> Dear sirs,
>
> I dont''t think the addition of :message => "can''t
be blank" does make a
> difference.\
>
> Validations have their own strings already packed, in en.yml in the
> active_model gem. In the console (rails c) you can try it out (assuming
> your model is named ''Person''):
>
> p=Person.new
> p.valid?
> p.errors
> # or p.errors[:name]
>
> You will see that it will show a message "can''t be
blank" also when you
> don''t'' specify :message in the validation!
>
> So, these messages are already generated, now you want to show them,
> look
> here:
> 
http://guides.rubyonrails.org/active_record_validations_callbacks.html#displaying-validation-errors-in-the-view> for documentation.
>
> Also, <shameless plug>have a look at  validation_hints gem
> (https://github.com/acesuares/validation_hints) which helps you display
> helpful context sensitive messages for form fields</shameless plug>!
>
> Cheers,
> ace
Dear ace,
          as per you have told, i wrote <%= f.error_messges %> in my 
view page to display error when leaving name as empty , but right now am 
getting like "undefined error_messages", please help me to solve this 
problem .




regards,
manoj

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Ace Suares

2012-Jul-24 12:35 UTC

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Re: Validation in ruby on rails

Hi manoj,

I am replying to a message that you posted on the ruby-forum but didn''t
show up in google groups.

Anyway, did you put

gem "dynamic_form"



in your Gemfile?
And then after that, run ''bundle install'' ?
Please do so and try again.

cheers
ace

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Manoj M.

2012-Jul-25 04:30 UTC

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Re: Validation in ruby on rails

Ace S. wrote in post #1069974:> Hi manoj,
>
> I am replying to a message that you posted on the ruby-forum but
didn''t
> show up in google groups.
>
> Anyway, did you put
>
> gem "dynamic_form"
>
>
>
> in your Gemfile?
> And then after that, run ''bundle install'' ?
> Please do so and try again.
>
> cheers
> ace
Hi ace,
        yes i did like that you told,  included gem "dynamic_form" in 
gemfile and bundle install is done, but now also its not working. What 
to do next? help me.

Regards,
manoj

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Ace Suares

2012-Jul-25 13:19 UTC

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Re: Validation in ruby on rails

Manoj,

Open up the console (rails c), and then create a new User (or whatever 
model you want) like this:

u = User.new

Check if this user is valid:

u.valid?

This should result in false! if NOT, then you don’t'' have any errors.
Then
you have to look at you validation lines in the model...

If it is false then try:

u.errors
u.errors.full_messages

this SHOULD give you an array of error messages. If not, there''s
something
wrong.

Now go back to your view and insert

<p>ERRORS: <%= @object.errors.full_messages %> !!! %></p>

into your view. Of course the @object must match the one you are making the 
form for.

Tell me what you see then.

Cheers
ace






On Wednesday, July 25, 2012 12:30:14 AM UTC-4, Ruby-Forum.com User
wrote:>
> Ace S. wrote in post #1069974: 
> > Hi manoj, 
> > 
> > I am replying to a message that you posted on the ruby-forum but
didn''t
> > show up in google groups. 
> > 
> > Anyway, did you put 
> > 
> > gem "dynamic_form" 
> > 
> > 
> > 
> > in your Gemfile? 
> > And then after that, run ''bundle install'' ? 
> > Please do so and try again. 
> > 
> > cheers 
> > ace 
>
> Hi ace, 
>         yes i did like that you told,  included gem
"dynamic_form" in
> gemfile and bundle install is done, but now also its not working. What 
> to do next? help me. 
>
> Regards, 
> manoj 
>
> -- 
> Posted via http://www.ruby-forum.com/. 
>
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Manoj M.

2012-Jul-26 05:42 UTC

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Re: Validation in ruby on rails

Ace S. wrote in post #1070147:> Manoj,
>
> Open up the console (rails c), and then create a new User (or whatever
> model you want) like this:
>
> u = User.new
>
> Check if this user is valid:
>
> u.valid?
>
> This should result in false! if NOT, then you dont'' have any
errors.
> Then
> you have to look at you validation lines in the model...
>
> If it is false then try:
>
> u.errors
> u.errors.full_messages
>
> this SHOULD give you an array of error messages. If not, there''s
> something
> wrong.

>
> Now go back to your view and insert
>
> <p>ERRORS: <%= @object.errors.full_messages %> !!!
%></p>
>
> into your view. Of course the @object must match the one you are making
> the
> form for.
>
> Tell me what you see then.
>
> Cheers
> ace





Dear ace,
          i tried with console it just works fine that showing 
error_message ["Name can''t be blank"] when i gave
a.errors.full_messages
where a is a new object, but am unable to print the error message in 
view page,where only empty array is displayed, i have no idea what to 
do, its been more than 4 days i have stucked please help me out, 
expecting your help more.


regards,
manoj

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vishal singh

2012-Jul-26 05:53 UTC

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Re: Re: Validation in ruby on rails

try to write this

<% if @variable_name.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@ variable_name .errors.count,
"error") %>
prohibited this user from being saved:</h2>

      <ul>
      <% @ variable_name .errors.full_messages.each do |msg| %>
        <li><%= msg %></li>
      <% end %>
      </ul>
    </div>
  <% end %>


Regards,
Vishal Singh






On Thu, Jul 26, 2012 at 11:12 AM, Manoj M.
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> Ace S. wrote in post #1070147:
> > Manoj,
> >
> > Open up the console (rails c), and then create a new User (or whatever
> > model you want) like this:
> >
> > u = User.new
> >
> > Check if this user is valid:
> >
> > u.valid?
> >
> > This should result in false! if NOT, then you dont'' have any
errors.
> > Then
> > you have to look at you validation lines in the model...
> >
> > If it is false then try:
> >
> > u.errors
> > u.errors.full_messages
> >
> > this SHOULD give you an array of error messages. If not,
there''s
> > something
> > wrong.
>
>
>
> >
> > Now go back to your view and insert
> >
> > <p>ERRORS: <%= @object.errors.full_messages %> !!!
%></p>
> >
> > into your view. Of course the @object must match the one you are
making
> > the
> > form for.
> >
> > Tell me what you see then.
> >
> > Cheers
> > ace
>
>
>
>
>
>
> Dear ace,
>           i tried with console it just works fine that showing
> error_message ["Name can''t be blank"] when i gave
a.errors.full_messages
> where a is a new object, but am unable to print the error message in
> view page,where only empty array is displayed, i have no idea what to
> do, its been more than 4 days i have stucked please help me out,
> expecting your help more.
>
>
> regards,
> manoj
>
> --
> Posted via http://www.ruby-forum.com/.
>
> --
> You received this message because you are subscribed to the Google Groups
> "Ruby on Rails: Talk" group.
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>
>
>
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Rails - Jul 2012 - Validation in ruby on rails

Validation in ruby on rails

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