MachForm Community Forums » MachForm 2

1. jvandenbussche
   Member

   I need a way to have three drop downs (month, date, year) so that someone enters their birthdate. This is for a contest entry form. In addition, I need to prevent someone under a certain age from submitting the form (i.e. 13 years of age). To that end, I would like to populate the year drop down with options that disallow anyone under 13 from entering (meaning 2008, 2007, 2006, etc. would not appear). Any ideas? My boss uses this application, so I don't have the option of telling him to use something else.

   Posted 15 years ago #
2. 

   redityo

   Hi,

   I think you can add a calendar (date) field instead, with new validation to give error if someone under 13 years old submit the form.
   To do so, let say you have a date field with element id = 1 in form 1, then try to follow these steps :

   1. Edit "common-validator.php" file and go around line 28, you will see this code :

   define('VAL_FILETYPE',$lang['val_filetype']);

   exactly bellow that line, you can add this

   function validate_difference_date($value){
   	$value = $value[0];
   
   	if(!empty($value)){
   		$temp_date = explode('-',$value);
   
   		$date1 = time();  // get today time
   		$date2 = mktime(0,0,0,$temp_date[1],$temp_date[2],$temp_date[0]);
   		$date_diff = $date1 - $date2;
   		$full_days = floor($date_diff/(60*60*24) );
   		$diff_year = round($full_days / 356); 
   
   		//change the condition to set another minimum age
   		if ($diff_year < 13)
   			return 'This form only for 13+ years old';
   		else
   			return true;
   	}else{
   		return VAL_REQUIRED;
   	}
   }

   2. Edit 'includes/post-functions.php" and go around line 692, you will see this :

   $validation_result = validate_element($target_input,$rules);

   put these code exactly above that line

   if ($element_id == '1' && $form_id == '1') {
   	$rules['element_date']['difference_date'] = $target_input['element_date'] ;
   }

   ---

   MachForm Support

   Posted 15 years ago #

3. caseybecking
   Member

   as much as i can see this should be working it isnt. Any ideas?

   Posted 15 years ago #

4. caseybecking
   Member

   yeah looking at it closer you have an error in your math somewhere diff_year becomes 1 . Ill dig deeper

   Posted 15 years ago #

5. caseybecking
   Member

   if ($diff_year < 18)
needs to go like that. Correct?

   Posted 15 years ago #
6. 

   yuniar

   Ah, yes .. you got it correct. I've fixed the above code.
   Thanks for letting us know!

   ---

   MachForm Founder

   Posted 15 years ago #