Rails - Aug 2008 - undefined method

I''m trying to pass a method to another object/method as a variable.

Example one, login 1 works just fine.

def login1
  @driver.Login(username, password)
end

However, if I try to pass "Login" to the driver as an argument
(example two Login 2), I get "undefined method `command_string''
for
#<SOAP::RPC::Driver:0x316dc28>"

"Login" is a legit method for the SOAP::RPC::Driver. Do I need to do
something to variable first?

def login2
  command_string = "Login"
  send_to_api(command_string)
end

def send_to_api(command_string)
  results = @driver.command_string(username, password)
end






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On Aug 26, 2008, at 7:08 PM, iga wrote:
>
> I''m trying to pass a method to another object/method as a
variable.
>
> Example one, login 1 works just fine.
>
> def login1
>  @driver.Login(username, password)
> end
>
> However, if I try to pass "Login" to the driver as an argument
> (example two Login 2), I get "undefined method
`command_string'' for
> #<SOAP::RPC::Driver:0x316dc28>"
>
> "Login" is a legit method for the SOAP::RPC::Driver. Do I need to
do
> something to variable first?
>
> def login2
>  command_string = "Login"
>  send_to_api(command_string)
> end
>
> def send_to_api(command_string)
>  results = @driver.command_string(username, password)
> end

While you need to be careful, you can do exactly that by using send.

def send_to_api(command_string)
   @driver.send(command_string, username, password)
end

There''s no need to assign to results, the last expression evaluated is
the return value of the method.

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org

Thanks,

This appears to have worked. When you suggest the need to "be careful"
what did you mean?

+bm

On Aug 26, 6:14 pm, Rob Biedenharn
<R...-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org>
wrote:
> On Aug 26, 2008, at 7:08 PM, iga wrote:
>
>
>
>
>
> > I''m trying to pass a method to another object/method as a
variable.
>
> > Example one, login 1 works just fine.
>
> > def login1
> >  -y6Ttphvx4OA2T6q+CZDnyA@public.gmane.org(username, password)
> > end
>
> > However, if I try to pass "Login" to the driver as an
argument
> > (example two Login 2), I get "undefined method
`command_string'' for
> > #<SOAP::RPC::Driver:0x316dc28>"
>
> > "Login" is a legit method for the SOAP::RPC::Driver. Do I
need to do
> > something to variable first?
>
> > def login2
> >  command_string = "Login"
> >  send_to_api(command_string)
> > end
>
> > def send_to_api(command_string)
> >  results = @driver.command_string(username, password)
> > end
>
> While you need to be careful, you can do exactly that by using send.
>
> def send_to_api(command_string)
>    -Aziy4oF9jrTtiydaUZqy3w@public.gmane.org(command_string, username,
password)
> end
>
> There''s no need to assign to results, the last expression
evaluated is  
> the return value of the method.
>
> -Rob
>
> Rob Biedenharn          http://agileconsultingllc.com
> R...-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org
>
>  smime.p7s
> 3KViewDownload
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Through the use of Object#send any method can be invoked -- even those  
that are protected or private.  You usually need to have a good reason  
to circumvent the restrictions put in place by the class author.

For a SOAP application, you''re responsible for making sure that the  
methods that are called in this way are the "right" ones.

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org

On Aug 27, 2008, at 8:48 AM, iga wrote:
> Thanks,
>
> This appears to have worked. When you suggest the need to "be
careful"
> what did you mean?
>
> +bm
>
> On Aug 26, 6:14 pm, Rob Biedenharn
<R...-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org>
> wrote:
>> On Aug 26, 2008, at 7:08 PM, iga wrote:
>>
>>
>>
>>
>>
>>> I''m trying to pass a method to another object/method as a
variable.
>>
>>> Example one, login 1 works just fine.
>>
>>> def login1
>>>  @driver.Login(username, password)
>>> end
>>
>>> However, if I try to pass "Login" to the driver as an
argument
>>> (example two Login 2), I get "undefined method
`command_string'' for
>>> #<SOAP::RPC::Driver:0x316dc28>"
>>
>>> "Login" is a legit method for the SOAP::RPC::Driver. Do I
need to do
>>> something to variable first?
>>
>>> def login2
>>>  command_string = "Login"
>>>  send_to_api(command_string)
>>> end
>>
>>> def send_to_api(command_string)
>>>  results = @driver.command_string(username, password)
>>> end
>>
>> While you need to be careful, you can do exactly that by using send.
>>
>> def send_to_api(command_string)
>>    @driver.send(command_string, username, password)
>> end
>>
>> There''s no need to assign to results, the last expression
evaluated
>> is
>> the return value of the method.
>>
>> -Rob
>>
>> Rob Biedenharn          http://agileconsultingllc.com
>> R...-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org

undefined method `username'' for 1:Fixnum

Extracted source (around line #3):

1: <% form_tag (:action => ''update_password'', :id =>
@user) do %>
2: <label> enter old password</label>
3: <%= password_field ''user'', ''username''
%><p>
4:
5: <label> enter new password</label>
6: <%= password_field ''user'', ''password''
%><p>

I got above error run this program. please any one help me..

source:

<% form_tag (:action => ''update_password'', :id =>
@user) do %>
<label> enter old password</label>
<%= password_field ''user'', ''username''
%><p>

<label> enter new password</label>
<%= password_field ''user'', ''password''
%><p>

<label> enter confirm password</label>
<%= password_field ''user'', ''new_password''
%><p>
 <%= submit_tag "Submit" %>

<% end %>

thanks,
karthik
-- 
Posted via http://www.ruby-forum.com/.

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On 12 Sep 2008, at 10:35, karthik reva wrote:
>
> undefined method `username'' for 1:Fixnum
>
> Extracted source (around line #3):
>
> 1: <% form_tag (:action => ''update_password'', :id
=> @user) do %>
> 2: <label> enter old password</label>
> 3: <%= password_field ''user'',
''username'' %><p>
> 4:
> 5: <label> enter new password</label>
> 6: <%= password_field ''user'',
''password'' %><p>
>
> I got above error run this program. please any one help me..
>
Sounds like @user is the number 1 whereas rails is expecting it to be  
something with a username, password and new_password methods (eg an  
instance of User)

Fred
> source:
>
> <% form_tag (:action => ''update_password'', :id
=> @user) do %>
> <label> enter old password</label>
> <%= password_field ''user'',
''username'' %><p>
>
> <label> enter new password</label>
> <%= password_field ''user'',
''password'' %><p>
>
> <label> enter confirm password</label>
> <%= password_field ''user'',
''new_password'' %><p>
> <%= submit_tag "Submit" %>
>
> <% end %>
>
> thanks,
> karthik
> -- 
> Posted via http://www.ruby-forum.com/.
>
> >

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