Parameter values

Rails
#1

Hi all,
i’m a bigginer in rails, i used before a j2ee
there was a method
request.getParameterValues(param_name)
that return array of parameters values than have the same name

is there like that method in rails

Thanks
M.SH

#2

On 24.02.2012, at 0:20, M.SH wrote:

Hi all,
i’m a bigginer in rails, i used before a j2ee
there was a method
request.getParameterValues(param_name)
that return array of parameters values than have the same name

is there like that method in rails

What exactly do you mean ‘the same name’ ?

In Rails we have

request.path_parameters - the Hash of parameters generating a url
actually, like :controller, :action, :host, :subdomain, :id or any other
due to your routing settings. ex.: http://yoursite.com/articles/1
(:host => ‘yoursite.com’, :controller => ‘articles’, :action => ‘show’,
:id => ‘1’)

request.query_parameters - the Hash of additional parameters, it can be
whatever. ex. :http://yoursite.com/articles&q=“love” (:q => ‘love’)

combined accessor ‘params’ - the Hash of all parameters.

Since it Hash, there is no duplicate keys. Each key is uniq, but the
values individual.

#3

On Thu, Feb 23, 2012 at 12:34 PM, Valery K. [email protected] wrote:

request.getParameterValues(param_name)
that return array of parameters values than have the same name

What exactly do you mean ‘the same name’ ?

Exactly what he said – the same name.

This: http://example.com/?foo=bar&foo=baz&foo=xyz

:: is a perfectly valid URL and easily processed in a Java web app.

combined accessor ‘params’ - the Hash of all parameters.

Since it Hash, there is no duplicate keys. Each key is uniq, but the values
individual.

Yeah, I’ve never understood that choice.

–
Hassan S. ------------------------ [email protected]
http://about.me/hassanschroeder
twitter: @hassan

#4

thank u for your reply,
i mean by name like

<form .. . .

i don’t know the no. of elements

#5

On 23 February 2012 21:18, M.SH [email protected] wrote:

thank u for your reply,
i mean by name like

<form ..

use


and I think you will get them as an array in params[:street]

Colin

#6

On 24.02.2012, at 0:48, Hassan S. wrote:

Exactly what he said – the same name.

This: http://example.com/?foo=bar&foo=baz&foo=xyz

Unacceptable :slight_smile:

Rails’ approach: each key is unique.

If you want to get them grouped, just wrap them to array, and your
params accessor will be like: {:foo => [‘bar’,‘bad’,‘xyz’]}

Yeah, I’ve never understood that choice.

Philosophy.

#7

On Thu, Feb 23, 2012 at 12:54 PM, Valery K. [email protected] wrote:

Rails’ approach: each key is unique.

Philosophy.

Counter-philosophy –

Be liberal in what you accept, and conservative in what you send.
(Postel’s Law)

Silently discarding data from a client is not, to my mind, a good thing.

To the OP: the answer is “no” :slight_smile:

–
Hassan S. ------------------------ [email protected]
http://about.me/hassanschroeder
twitter: @hassan

#8

thanks for all
but Colin is the right answer for me
i have try it Colin ++ :slight_smile: