MY Validation

Category:Libraries::Extended

Instead of using callbacks to add rules you can add rules by extending the validation library.

The error messages must be added to the validation language file.

All additions are welcome

[code] <?php class MY_Validation extends CI_Validation {

var $_display_fieldname = array();

function MY_Validation()
{
    parent::CI_Validation();
}
/**
* numeric rules
*
*/
function greater_than($str,$min)
{
    if(!is_numeric($str)){ return false; }
    return $str > $min;
}

function less_than($str,$max)
{
    if(!is_numeric($str)){ return false; }
    return $str < $max;
}
/*
*  checkbox rules
*
* use with required rule
*/
function equal_to($str,$eq)
{
    if(!is_numeric($str)){ return false; }
    return $str == $eq; 
}

function max_count($str,$max)
{
    return (count($str) <= $max);
}

function min_count($str,$min)
{
    return count($str) >= $min;
}
/**
*  email rules
*
*/
function domain_email($str,$params)
{
    $parts = explode("@", $str);
    $domain = $parts[1];
    $allowed_array = explode(',',$params);
    return in_array($domain, $allowed_array);
}
/**
*   general rules
*
*/
function exact_count($str,$eq)
{
   if(is_string($str))
   { 
       return (strlen($str) == $eq)?true:false;
   }
   else
   {
      return count($str) == $eq;
   }
}
/*
* validate date from 3 selects
*
* example : $rule['year'] = 'valid_selectsdate[month,day]';
*
*/
function valid_selectsdate($str,$params)
{
   $explode = explode(',',$params);
   $month = $this->CI->input->post($explode[0]);
   $day = $this->CI->input->post($explode[1]);
   if(!day) // year and month don't need to be validated
   {
      return true;
   }
   if(check_date($month,$day,$str))
   {
       return true;
   }
   return false;
}
/*
* validate date from text input
*
*
* example : $rule['date'] = 'valid_textdate[-,2,1,0]';
*/
function valid_textdate($str,$params= '')
{
   if($params == '')
   {
       // default setting
       $divider = '-';
       $yearpart = 0;
       $monthpart = 1;
       $daypart = 2;
   }
   else
   {
       $explode = explode(',',$params);
       $divider = $explode[0];
       $yearpart = $explode[1];
       $monthpart = $explode[2];
       $daypart = $explode[3];
   }
   $explode2 = explode($divider,$str);
   if(count($explode2) != 3)
   {
           return false;
   }
   $year = $explode2[$yearpart];
   $month = $explode2[$monthpart];
   $day = $explode2[$daypart];
   if(check_date($month,$day,$str))
   {
       return true;
   }
   return false;
}

/*
*  set fields alternative
*
*/
function set_fields($data = '', $field = '', $separator = '_') {    
    if ($data == '') {
        if (count($this->_fields) == 0 && count($this->_rules) == 0) {
            return FALSE;
        }
    } else {
        if ( ! is_array($data)) {
            $data = array($data => $field);
        }
        
        if (count($data) > 0) {
            $this->_fields = $data;
        }
    }
    
    foreach($this->_rules as $key => $val) {                  
        $text = ucwords(str_replace($separator, ' ', $key));             
        $auto_fields[$key] = $text;     
    }
    
    $this->_fields = array_merge($auto_fields, $this->_fields);
    
    foreach($this->_fields as $key => $val) {        
        $this->$key = ( ! isset($_POST[$key]) OR is_array($_POST[$key])) ? '' : $this->prep_for_form($_POST[$key]);
        
        $error = $key.'_error';
        if ( ! isset($this->$error)) {
            $this->$error = '';
        }
    }        
}

/**
 * Single Space
 *
 * - converts multiple spaces to one space
 * 
 * eg. "a      b" -> "a b"
 *
 * @access    public
 * @param    string
 * @return    bool
 */
function single_space($str)
{
    $_POST[$this->_current_field] = preg_replace('/  +/', ' ', $str);
}

} [/code]