function isValid()
{
#echo "checking field $this->name\n";
#print_r($this);
$this->error = '';
$no_errors = TRUE;
if (!empty($this->value)) {
if ($this->preg_rule == '') {
switch ($this->value_type) {
case FORMFIELD_EMAIL_TYPE:
$no_errors = xox_check_email($this->value);
if (!$no_errors) {
$this->error = 'INVALID_EMAIL_TYPE';
}
break;
case FORMFIELD_URI_TYPE:
$no_errors = xox_check_url($this->value);
if (!$no_errors) {
$this->error = 'INVALID_URI_TYPE';
}
break;
case FORMFIELD_INTEGER_TYPE:
$no_errors = is_integer($this->value);
if (!$no_errors) {
$this->error = 'INVALID_INTEGER_TYPE';
}
break;
case FORMFIELD_NUMERIC_TYPE:
case FORMFIELD_CURRENCY_TYPE:
$no_errors = is_numeric($this->value);
if (!$no_errors) {
$this->error = 'INVALID_NUMERIC_TYPE';
}
break;
case FORMFIELD_DATE_TYPE:
$no_errors = preg_match('/^[1-9][0-9][0-9][0-9]-[0-1]?[0-9]-[0-3]?[0-9]$/', $this->value) || preg_match('/^[0-3]?[0-9]\\.[0-1]?[0-9].[1-9][0-9][0-9][0-9]$/', $this->value);
if (!$no_errors) {
$this->error = 'INVALID_DATE_TYPE';
}
break;
case FORMFIELD_SHORTDATE_TYPE:
$no_errors = preg_match('/^[0-1]?[0-9]-[0-3]?[0-9]$/', $this->value) || preg_match('/^[0-3]?[0-9]\\.[0-1]?[0-9]$/', $this->value);
if (!$no_errors) {
$this->error = 'INVALID_SHORTDATE_TYPE';
}
break;
case FORMFIELD_TIME_TYPE:
$no_errors = preg_match('/[0-2]?[0-9]:[0-9][0-9]:[0-9][0-9]/', $this->value);
if (!$no_errors) {
$this->error = 'INVALID_TIME_TYPE';
}
break;
case FORMFIELD_SHORTTIME_TYPE:
$no_errors = preg_match('/[0-2]?[0-9]:[0-9][0-9]/', $this->value);
if (!$no_errors) {
$this->error = 'INVALID_SHORTTIME_TYPE';
}
break;
}
} else {
$no_errors = preg_match($this->preg_rule, $this->value);
if (!$no_errors) {
$this->error = 'INVALID_BREAKS_RULE';
}
}
if ($no_errors && !($this->min_val == 0 && $this->max_val == 0)) {
$no_errors = $this->value >= $this->min_val && $this->value <= $this->max_val;
if (!$no_errors) {
$this->error = 'INVALID_VALUE';
}
}
if ($no_errors && !($this->min_len == 0 && $this->max_len == 0)) {
$no_errors = strlen($this->value) >= $this->min_len && strlen($this->value) <= $this->max_len;
if (!$no_errors) {
$this->error = 'INVALID_LENGTH';
}
}
} elseif ($this->mandatory) {
$no_errors = FALSE;
if (!$no_errors) {
$this->error = 'INVALID_EMPTY';
}
}
#if (!$no_errors) echo '=== '.$this->error.' ===';
return $no_errors;
}
/**
* validate contents of field
* @return true if field is valid
*/
function validate()
{
// optimistic approach
$this->validated = true;
// get length of value
$len = $this->value == DCO_DATA_NULL ? 0 : is_array($this->value) ? count($this->value) : strlen($this->value);
// check mandatory
if ($this->mandatory && $len < 1) {
$this->validated = false;
$this->reason = DCO_DATA_ERR_EMPTY;
return false;
}
// check length
if ($this->checklength && $len > 0 && ($this->minlength != DCO_DATA_NULL && $len < $this->minlength) || $this->maxlength != DCO_DATA_NULL && $len > $this->maxlength) {
$this->validated = false;
$this->reason = DCO_DATA_ERR_LENGTH;
return false;
}
// check range
if ($this->checkrange && $len > 0 && ($this->minvalue != DCO_DATA_NULL && $this->value < $this->minvalue) || $this->maxvalue != DCO_DATA_NULL && $this->value > $this->maxvalue) {
$this->validated = false;
$this->reason = DCO_DATA_ERR_RANGE;
return false;
}
// only check formats when a value is set
if ($len > 0) {
// regular expression has precedence to default regex for email and url
if ($this->regex != DCO_DATA_NULL && !empty($this->regex)) {
$this->validated = preg_match($this->regex, $this->value);
// check default regex for email field
} elseif ($this->type == DCO_DATA_EMAIL) {
$this->validated = xox_check_email($this->value);
// check default regex for url field
} elseif ($this->type == DCO_DATA_URL) {
$this->validated = xox_check_url($this->value);
// check default regex for url field
} elseif ($this->type == DCO_DATA_DATE) {
$this->validated = xox_check_date($this->value);
}
// if validation failed here, then it was a format error
if (!$this->validated) {
$this->reason = DCO_DATA_ERR_FORMAT;
}
}
// default exit
return $this->validated;
}
