MachForm Community Forums » MachForm 2

1. Leopard
   Member

   i need a field which is visible for admin only this field calculates the sum of other fields:

   element_4 = element_1 + element_2 + element_3

   the field must be generated automatically and can be changed only if the the other fields changed so the sum will be changed

   Thanks :)

   Posted 15 years ago #

2. Leopard
   Member

   Any idea ?

   Posted 15 years ago #
3. 

   redityo

   Hmmm .. It's possible to use a javascript for calculation and add a "hidden" field for calculation result. To do so edit "includes/view-functions.php" file and try to follow these steps - It's quite long ;) - :

   1. Go to line 1818 ~ 1822, you will see these code :

   if($has_calendar){
   	$calendar_js = '<script type="text/javascript" src="js/calendar.js"></script>';
   }else{
   	$calendar_js = '';
   }

   Put these code exactly bellow that line

   if ($_GET['id'] == 3) {
   $calculate_js = <<<EOT
   <script type="text/javascript">
   
   function calculate() {
   		//reset text box value
   
   		$('#element_4').val('0');
   
   		sum_data = parseInt($('#element_1').val()) + parseInt($('#element_2').val()) + parseInt($('#element_3').val()) ;
   
   		$('#element_4').val (sum_data);
   
   	}
   
   </script>
   EOT;
   }

   2. Go to line 1851 and you will see this code

   <script type="text/javascript" src="js/view.js"></script>

   put this code exactly bellow that line

   <script type="text/javascript" src="js/jquery/jquery-core.js"></script>
   {$calculate_js}

   3. Go to around line 40, you'll see this code :

   $element_markup = <<<EOT

   put these code above that line

   if ($_GET['id'] == 3) {
   $onchange_script = ' onchange="javascript:calculate();" ';
   }

   4. Go to line 44, you will see this code :

   <input id="element_{$element->id}" name="element_{$element->id}" class="element text {$element->size}" type="text" value="{$element->default_value}" />

   change to

   <input {$onchange_script} id="element_{$element->id}" name="element_{$element->id}" class="element text {$element->size}" type="text" value="{$element->default_value}" />

   I there I assume your form id = 3 and the text box id to be calculated are 1,2,3, with field result id = 4.

   Anyway for the result, I suggest to use a hidden field instead an admin only field, to hide the result field (element_4), you can add this CSS code to your CSS form :

   #li_4
   {
   display:none !important;
   }

   Make sure you've change those id.

   ---

   MachForm Support

   Posted 15 years ago #

4. atteam
   Member

   I've tried this but doesn't work.
   No error though...
   can you help?

   thanks a lot

   Posted 12 years ago #

5. daltx7
   Member

   Because of the time before the first message, I am trying to find the code in order to insert my own calculation field, but the code no longer exists. Was there ever a resolution with this or is there a way to do this now? I can work with the existing script using my own element fields, but need to know where to insert the code and whether it works. Maybe someone can help with MachForm3. BTW, Major Release 4.0 and no calculation fields?

   Posted 10 years ago #

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