How to get the value of radio

[夜帝]

   Html code:  
     <form method="post">
       <label><input type="radio" name="sex" value=“0” id="male"/>male</label>
       <label><input type="radio" name="sex" value=“1” id="female"/>female</label>
       <input name="submitBtn" value="submit" type="submit" />
      </form>
   Like this form,How to get the value of the checked radio in controller?

[chan sisowath]

something like

toto('POST', []) ->

  Sex = Req:post_param("sex"),

2012/2/17 夜帝 <tong...@gmail.com>

[夜帝]

But I printed this result,It was garbled like follows:
Print：
io:format(Req:post_param("sex"))
Result：
“0â€

2012/2/17 chan sisowath <chan.s...@gmail.com>

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我踏月色而来！

[Graeme Defty]

You need io:format/2, not io:format/1.
____________________________________

[夜帝]

The result was [226,128,156,49,226,128,157] ,But how to get the value of the checked radio?I think the reason is that there are two Radio，and their name is radio。

2012/2/18 Graeme Defty <graeme...@gmail.com>

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我踏月色而来！

[Kai Janson]

http://erldocs.com is a fantastic source on the library functions of Erlang.

—Kai

[夜帝]

Who can give me an example ,I want to get the value of the checked radio,and save into the database.Through   Req:post_param("sex")  to get the results can not save into the database.

2012/2/18 Kai Janson <kot...@gmail.com>

http://erldocs.com is a fantastic source on the library functions of Erlang.

—Kai

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我踏月色而来！

[Marutha]

io:format("~s",[ Req:post_param("sex") ]).
TnR
Marutha

[Kai Janson]

In your view you would have something like this:

    <input type="radio" id="radio1" name="radio1" value="1" />1

    <input type="radio" id="radio1" name="radio1" value="2" />2

    <input type="radio" id="radio1" name="radio1" value="3" />3

    <input type="radio" id="radio1" name="radio1" value="4" />4

    <input type="radio" id="radio1" name="radio1" value="5" />5

And then in your controller you would get the value for radio1 like this:

Choice = Req:post_param("radio1"),

error_logger:info_msg("Choice was [1..5]: ~p~n",[Choice]),

At this point in time you can persist the information.

—Kai

[chan sisowath]

the problem is from your code i think,

value=“0”  is not equal to value="0"

:)

2012/2/17 夜帝 <tong...@gmail.com>

[夜帝]

To chan sisowath:
Thank you,but I don't understand you say,can you give me an example?

2012/2/18 chan sisowath <chan.s...@gmail.com>

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[Seven Du]

look carefully you can find Chinese version of quotes.

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[Evan Miller]

The quotes should be straight and not curly.

An easy fix would be

value=0

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Evan Miller
http://www.evanmiller.org/

[Kai Janson]

9527 wrote:

9527 寫: 

<form method="post">

       <label><input type="radio" name="sex" value=“0” id="male"/>male</label>
       <label><input type="radio" name="sex" value=“1” id="female"/>female</label>
       <input name="submitBtn" value="submit" type="submit" />
      </form>

I think, you can rewrite the html codes to:

我想, 你可以改寫 html:

<form method="post">

  <input type="radio" id="sex" name="sex" value="male" />Male

  <input type="radio" id="sex" name="sex" value="female" />Female

  <input name="submitBtn" value="submit" type="submit" />

</form>

Then, in the controller, create the following to capture the radio results:

然後, 在 controller 裡, 新建以下 erlang codes 來獲取你想要結果:

    Choice = Req:post_param("sex"),

    error_logger:info_msg("Choice was: ~p~n",[Choice])

請注意, 不要用 “ ”.  請用 " ".  符號不同, 結果不同.

Please be careful, and do not use “ ”.  Please use " ".  Different symbols, different results.

Hope that helps a little.