# Issue with form\_tag

**URL:** <https://www.ruby-forum.com/t/issue-with-form-tag/179138>\
**Category:** Rails\
**Created:** [November 18, 2009, 9:18am UTC](https://www.ruby-forum.com/t/issue-with-form-tag/179138 "2009-11-18T09:18:47Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Rajeswar\_reddy\_G](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/8c91f0/32.png) [@Rajeswar\_reddy\_G](https://www.ruby-forum.com/u/Rajeswar_reddy_G)\
**Post date:** [November 18, 2009, 9:18am UTC](https://www.ruby-forum.com/t/issue-with-form-tag/179138/1 "2009-11-18T09:18:47Z")

</div>

Hi,

I am getting error, while executing below code.  
please let me know the issue.

# Add new phonenumber
\<% form\_tag '/create' do %\> 

PersonName: \<%= text\_field 'phonenumber', 'personname' %\>

PhoneNumber: \<%= text\_field 'phonenumber', 'phnumber' %\>

TypeOfPhoneNumber: \<%= collection\_select(:phonenumber,:typeofnumber\_id,@names,:id,:typeofnumber) %\>

Description  
 \<%= text\_area 'phonenumber', 'description' %\>

 \<%= submit\_tag "Create" %\> \<% end %\> \<%= link\_to 'Back', {:action =\> 'list'} %\>

_ **ERROR** _\*\*\*\*

NoMethodError in Phonenumber#new

Showing app/views/phonenumber/new.rhtml where line #2 raised:

undefined method `^’ for “2”:String  
Extracted source (around line #2):

1:

# Add new phonenumber
  
2: \<% form\_tag ‘/create’ do %\>  
3: 

PersonName:  
4: \<%= text\_field ‘phonenumber’, ‘personname’ %\>

  
5: 

PhoneNumber:  
RAILS\_ROOT: C:/RubyForRails/railsapps/phonebook

Application Trace | Framework Trace | Full Trace  
C:/RubyForRails/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active\_support/message\_verifier.rb:46:in  
`block in secure_compare' C:/RubyForRails/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:45:in`each’  
C:/RubyForRails/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active\_support/message\_verifier.rb:45:in  
`secure_compare' C:/RubyForRails/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:28:in`verify’  
C:/RubyForRails/lib/ruby/gems/1.9.1/gems/actionpack-2.3.4/lib/action\_controller/session/cookie\_store.rb:156:in  
`unmarshal' C:/RubyForRails/lib/ruby/gems/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:145:in`load\_session’  
C:/RubyForRails/lib/ruby/gems/1.9.1/gems/actionpack-2.3.4/lib/action\_controller/session/abstract\_store.rb:62:in  
`block in load!' C:/RubyForRails/lib/ruby/gems/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:70:in`stale\_session\_check!’  
C:/RubyForRails/lib/ruby/gems/1.9.1/gems/actionpack-2.3.4/lib/action\_controller/session/abstract\_store.rb:61:in  
`load!' C:/RubyForRails/lib/ruby/gems/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:28:in`[]’  
C:/RubyForRails/lib/ruby/gems/1.9.1/gems/actionpack-2.3.4/lib/action\_controller/request\_forgery\_protection.rb:102:in  
`form_authenticity_token' (eval):2:in`form\_authenticity\_token’  
C:/RubyForRails/railsapps/phonebook/app/views/phonenumber/new.rhtml:2:in  
`\_run\_rhtml\_app47views47phonenumber47new46rhtml’  
Request

Parameters:

None  
Show session dump

Response

Headers:

{“Cache-Control”=\>“no-cache”,  
“Content-Type”=\>""}

Regards,  
GRR

---

<div class="post-metadata">

**Author:** ![Rajeswar\_reddy\_G](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/8c91f0/32.png) [@Rajeswar\_reddy\_G](https://www.ruby-forum.com/u/Rajeswar_reddy_G)\
**Post date:** [November 18, 2009, 10:44am UTC](https://www.ruby-forum.com/t/issue-with-form-tag/179138/2 "2009-11-18T10:44:10Z")

</div>

Hi Rajeswar

> \<% form\_tag ‘/create’ do %\>
> 
> PersonName: \<%= text\_field 'phonenumber', 'personname' %\>
> 
> PhoneNumber: \<%= text\_field 'phonenumber', 'phnumber' %\>
> 
> TypeOfPhoneNumber:

```
This is

```

\<% form\_tag ‘/phonenumbers’ do %\>

PersonName: \<%= text\_field 'phonenumber', 'personname' %\>

PhoneNumber: \<%= text\_field 'phonenumber', 'phnumber' %\>

TypeOfPhoneNumber:

```
Assuming you have map.resources :phonenumbers in routes.rb

   Also you can use form_for for the above

```

Sijo K George

---

<div class="post-metadata">

**Author:** ![Rajeswar\_reddy\_G](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/8c91f0/32.png) [@Rajeswar\_reddy\_G](https://www.ruby-forum.com/u/Rajeswar_reddy_G)\
**Post date:** [November 18, 2009, 10:51am UTC](https://www.ruby-forum.com/t/issue-with-form-tag/179138/3 "2009-11-18T10:51:06Z")

</div>

Sijo k g wrote:

> Hi Rajeswar
> 
> > \<% form\_tag ‘/create’ do %\>
> > 
> > PersonName: \<%= text\_field 'phonenumber', 'personname' %\>
> > 
> > PhoneNumber: \<%= text\_field 'phonenumber', 'phnumber' %\>
> > 
> > TypeOfPhoneNumber:
> 
> ```
> This is
> 
> ```
> 
> \<% form\_tag ‘/phonenumbers’ do %\>
> 
> PersonName: \<%= text\_field 'phonenumber', 'personname' %\>
> 
> PhoneNumber: \<%= text\_field 'phonenumber', 'phnumber' %\>
> 
> TypeOfPhoneNumber:
> 
> ```
> Assuming you have map.resources :phonenumbers in routes.rb
> 
> Also you can use form_for for the above
> 
> ```
> 
> Sijo K George

Hi Sijo,

Thanks for your response, but still I am getting same issue.  
If I remove the form\_tag, remaining code is working fine, but when I add  
form\_tag issue is occurring.

Regards,  
GRR

---

<div class="post-metadata">

**Author:** ![Rajeswar\_reddy\_G](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/8c91f0/32.png) [@Rajeswar\_reddy\_G](https://www.ruby-forum.com/u/Rajeswar_reddy_G)\
**Post date:** [November 18, 2009, 1:46pm UTC](https://www.ruby-forum.com/t/issue-with-form-tag/179138/4 "2009-11-18T13:46:28Z")

</div>

Hi,

I found the root cause to this issue.

it occurring because of secure\_compare method in  
lib\ruby\gems\1.9.1\gems\activesupport-2.3.4\lib\active\_support\message\_verifier.rb

existing method in 2.3.4

```
  def secure_compare(a, b)
    if a.length == b.length
      result = 0
      for i in 0..(a.length - 1)
        result |= a[i] ^ b[i]
      end
      result == 0
    else
      false
    end
  end

```

to come out of this issue use below method, if you want.

```
  def secure_compare(a, b)
    result = a.length ^ b.length
    for i in 0..99 # or some other constant
      result |= a[i].to_i ^ b[i].to_i
    end
    result == 0
  end

```

to know about issue, please visit:  
[https://rails.lighthouseapp.com/projects/8994/tickets/3144-undefined-method-for-string-ror-234](https://rails.lighthouseapp.com/projects/8994/tickets/3144-undefined-method-for-string-ror-234)