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HTML_QUICK_FORM Rules
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Pear_juice



Joined: 10 Aug 2007
Posts: 9
PostPosted: Fri Aug 10, 2007 9:52 am    Post subject: HTML_QUICK_FORM Rules Reply with quote
Hi all,

i am a newb in using PEAR and want to ask you a questions.
I want to use the HTML_QUICK_FORM pakage. When i created a form having two fields:

$a[] = &HTML_QuickForm::createElement('text', 'answer', "Answer:",array_merge(array("style"=>"width:270px;","value"=>$row["Answer"]),$cls_tb));

and

$a[] = &HTML_QuickForm::createElement('text', 'points', 'Points',array_merge(array("value"=>$row["points"]),$cls_tb_klein));


what can i do to look if when "answer" has no text "Points" has to be '0'?
I found no possible rule for that. How can i do it? How can i get the value of an Element?
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Joined: 07 Jan 2007
Posts: 1048
PostPosted: Fri Aug 10, 2007 3:57 pm    Post subject: Reply with quote
There are several possibilities:
- "no text" can be checked by a "required" rule
- the 0 can be checked via a custom rule that is very similar to the bundled "required" rule

If both fields are in group, you might need to add a group rule.

If both rules are depending on each other, addFormRule() is your friend.
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Pear_juice



Joined: 10 Aug 2007
Posts: 9
PostPosted: Mon Aug 13, 2007 9:52 am    Post subject: THNX Reply with quote
Thnx i will try it... Very Happy

But one question,

is required not only for fields who have to be filled? And if not filled you get an error "plz write something into field"?

For my form it should be possible to let this field empty?!
Did i missunderstand this rule "required"?
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Joined: 07 Jan 2007
Posts: 1048
PostPosted: Mon Aug 13, 2007 11:47 am    Post subject: Re: THNX Reply with quote
Pear_juice wrote:
But one question,

is required not only for fields who have to be filled? And if not filled you get an error "plz write something into field"?


Of course, yes. But you were talking about "no text".
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Pear_juice



Joined: 10 Aug 2007
Posts: 9
PostPosted: Mon Aug 13, 2007 12:24 pm    Post subject: Reply with quote
Oh,sorry.

maybe it was not easy to understand. English is not my first language.

So, my problem is another. When someone writes no text into the first field (he is allowed to) i want to check that the other field (only numeric) has to be a "0".

Thnx
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Joined: 07 Jan 2007
Posts: 1048
PostPosted: Mon Aug 13, 2007 1:16 pm    Post subject: Reply with quote
Okay, in that case, the last sentence of my first reply is the right way. (=> addFormRule(), or a group rule if you have one)
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Pear_juice



Joined: 10 Aug 2007
Posts: 9
PostPosted: Tue Aug 14, 2007 3:25 pm    Post subject: Reply with quote
Hi again,

I tryed this:

function cmpPoints($val)
{
for($b = 1; $b <=$countQuestions; $b++){
for($a = 3;$a <= $countAnswers; $a++){
if ($val["questionNr_".$b]["answer_".$a] == "" && $val["questionNr_".$b]["points_".$a] != '0') {
return array("question_".$b => 'For empty field Points have to be 0.');
}
}
}
return true;
}

$form->addFormRule('cmpPoints');

but nothing happens after pressing the submit button. What is my problem?
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Joined: 07 Jan 2007
Posts: 1048
PostPosted: Tue Aug 14, 2007 10:20 pm    Post subject: Reply with quote
I don't see where e.g. $countQuestions and $countAnswers are defined in your function? The loops will not be evaluated without these variables.

P.S.: Please use the {code} / {/code} (with square brackets) tags here in the forum, they make your code more readable.
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Pear_juice



Joined: 10 Aug 2007
Posts: 9
PostPosted: Wed Aug 15, 2007 1:08 pm    Post subject: Reply with quote
Ok,

the $countQuestions and $countAnswers are a problem. i changed it. i now take the values from hidden fields. thnx for that.

I changed many things and i have so many questions Embarassed

How does this work:

i have 2 loops as you have seen and i need to return a array like this:
Code:
return array('question_' .$b => 'Text.', 'question_' .$b => 'Text 2.',...);


so i tried this:
Code:

$errors;
loop1
  loop2
     $errors += "'frage_' .$b => 'text.',";
return array($errors);


but it wont work!?

I also have a problem with checking textfields:

Code:
if ($fields['antwort_'.$a] == "" && $fields['punkte_'.$a] != '0')


do i ask the right things to check an empty field and the number of another field???


this is my whole function:

Code:

function cmpPoints($fields)
{
   $errors = "";
   for($b = 1; $b <=$fields[anzahl_fragen]; $b++){
      for($a = 3;$a <= $fields[anzahl_antworten]; $a++){
           if ($fields['antwort_'.$a] == "" && $fields['punkte_'.$a] != '0') {
          $errors += "'frage_' .($b-1) => 'text.'";
          
       }
     }
  }
  if (errors != ""){
     return array($errors);
  }else{
     return true;
  }
}


Thnx
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Joined: 07 Jan 2007
Posts: 1048
PostPosted: Wed Aug 15, 2007 1:22 pm    Post subject: Reply with quote
I see German array keys in your code. If you speak German, it might be easier to proceed on pear-forum.de (I'm also registered there, and there some more QF users active there).

Anyway,
Code:
$fields[anzahl_fragen]
should be written as
Code:
$fields['anzahl_fragen']
to avoid a PHP notice. Another notice will be generated for this check:
Code:
if (errors != ""){


Try to replace it by
Code:
if ($errors != ""){
and your code might work then.

Code:
$error += ...
is also wrong. You need to use
Code:
$error[] = ...


BTW, using error_reporting = E_ALL should help to find some problems yourself.
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Pear_juice



Joined: 10 Aug 2007
Posts: 9
PostPosted: Wed Aug 15, 2007 2:42 pm    Post subject: Reply with quote
Thnx for help.
I tried to register at pear-forum.de but everytime i got an error message and could not use my email again. so i tried all my 3 Email adresses. no more Emails to register Laughing

And the Email to the webmaster could not be send. Also error Confused
____________________


--> You need to use Code:
Code:
$error[] = ...


i tried with

Code:
$errors .=


and the result looks good when give out the text via "echo"

Code:
echo $errors;


but

Code:
return array($errors);


wont work. If i take the echo output

Code:
return array('frage_' .(1-1) => 'text',...);


and write into the array, it works. Question
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Joined: 07 Jan 2007
Posts: 1048
PostPosted: Wed Aug 15, 2007 8:49 pm    Post subject: Reply with quote
Pear_juice wrote:
I tried to register at pear-forum.de but everytime i got an error message and could not use my email again. so i tried all my 3 Email adresses. no more Emails to register Laughing


If you want, send me an email (wiesemann(at)php.net; gerne auf Deutsch *g*) next time, and I'll try to forward if for you to the forum admin.

Pear_juice wrote:
i tried with

Code:
$errors .=


and the result looks good when give out the text via "echo"

Code:
echo $errors;


Well, yes, for an echo call you need a string. QF however, expects an array with the field name as the index and the error message as the value.

Not sure, whether all question are now answered!? If not, ask again please.
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Pear_juice



Joined: 10 Aug 2007
Posts: 9
PostPosted: Thu Aug 16, 2007 1:17 pm    Post subject: Reply with quote
Thnx, thats cool. I wrote you an Email (natürlich in deutsch Very Happy ).

Now 90% works perfect. The only problem is the return value. I think its because of the quotes.

Code:
return array('frage_' .(1-1) => text 1.','frage_' .(3-1) => text 2.',);


works but

Code:
$errors[1] .= "'frage_' .($b-1) => text x.',";
return array($errors[1])


wont work because of the quotes. but without the quotes (" ") i can´t allocate the text to the array.

what can i do?

Here is my whole function:

Code:
function cmpPoints($fields)
{
   
   $errors;
   for($b = 1; $b <=$fields['anzahl_fragen']; $b++){
      for($a = 3;$a <= $fields['anzahl_antworten']; $a++){
      
       if (strlen($fields["antworten_zu_frage_".($b-1)]["antwort_".($a-1)]) == 0 && $fields["antworten_zu_frage_".($b-1)]["punkte_".($a-1)] != 0) { 
          $errors[1] .= "'frage_' .($b-1) => 'Text.',";
       }
     }
  }
  if($errors[1] != ""){
      return array($errors[1]);
     
   }else{
    return true;
   }
}


Thnx!!!
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Joined: 07 Jan 2007
Posts: 1048
PostPosted: Thu Aug 16, 2007 2:05 pm    Post subject: Reply with quote
Code:
$errors;

should maybe be
Code:
$errors = array();


The main problem is that you need to stick with arrays. Don't event new string notation please. Wink

For example, you could replace
Code:
$errors[1] .= "'frage_' .($b-1) => 'Text.',";

by
Code:
$errors['frage_' .($b-1)] = 'Text.';


This will assign 'Text.' as the error message for the form field with the name 'frage_'.($b-1). If you need to append more text in another iteration of the loop, you can use ".=" instead of "=". To avoid a notice in the first iteration, you should maybe collect the errors for one element in a simple string, and put this string into the array once all possible errors for an element were checked. (I haven't had a closer look at your checks, so the last advice might not be needed.)

At the end, you could do something like this:
Code:

if (count($errors)) {
    return $errors;
}
return true;
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Pear_juice



Joined: 10 Aug 2007
Posts: 9
PostPosted: Thu Aug 16, 2007 2:06 pm    Post subject: Reply with quote
Oh, i think i got it. Wink

Everything works fine. Thnx for all. Maybe the next questions will appear in a few days Laughing

My final function:

Code:
function cmpPoints($fields)
{
   
   $errors;
   for($b = 1; $b <=$fields['anzahl_fragen']; $b++){
      for($a = 3;$a <= $fields['anzahl_antworten']; $a++){
       if (strlen($fields["antworten_zu_frage_".($b-1)]["antwort_".($a-1)]) == 0 && $fields["antworten_zu_frage_".($b-1)]["punkte_".($a-1)] != 0) { 
         $errors['frage_'.($b-1)] = Text.';
       }
     }
  }
  if(count($errors)<1) $errors = true;
  return $errors;
}
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