'dd',
'j' => 'd',
'l' => 'DD',
'z' => 'o',
'F' => 'MM',
'm' => 'mm',
'n' => 'm',
'Y' => 'yy',
);
$jquery_date_format = '';
$date_format = _qforms_extra_get_date_format($element);
foreach (str_split($date_format) as $char_in_format) {
$jquery_date_format .= isset($php_to_jquery_date_formats[$char_in_format]) ? $php_to_jquery_date_formats[$char_in_format] : $char_in_format;
}
if (!isset($felement['#attributes']) || $felement['#attributes']['readonly'] != 'readonly') {
drupal_add_js('jQuery(document).ready(function() {
jQuery( \'input[name="' . $element['key'] . '"]\' ).datepicker({ dateFormat: "' . $jquery_date_format . '" });
});', 'inline');
}
return $felement;
}
/**
* Validation of date textfield.
*/
function qforms_extra_fapi_date_validate($element, &$form_state) {
// Skip validation if field isn't required and if it is empty.
if ($element['#required'] == FALSE && empty($element['#value'])) {
return;
}
// @Note - DateTime::createFromFormat() is introduced in PHP 5.3.0.
foreach ($form_state['build_info']['args'] as $value) {
if (is_array($value)) {
if (isset($value[$element['#name']])) {
$format = _qforms_extra_get_date_format($value[$element['#name']]);
}
}
}
$date = DateTime::createFromFormat(isset($format) ? $format : DEFAULT_DATE_FORMAT, $element['#value']);
if (!$date) {
form_error($element, t('You need to enter a valid date.'));
}
}
/**
* Returns qforms date element for form builder.
*/
function qforms_extra_element_date($element_data) {
$element_data['element_title'] = t('Date');
$element = qforms_element_default($element_data);
qforms_element_add_size($element_data, $element);
_qforms_element_add_date_format($element, $element_data);
return $element;
}
/************************/
/*** Helper functions ***/
/************************/
/**
* Adds control for selecting and custom date format defining.
*/
function _qforms_element_add_date_format(&$element, $element_data) {
$default_value = isset($element_data['format']) ? check_plain($element_data['format']) : DEFAULT_DATE_FORMAT;
$element[$element_data['id'] . '_data'][$element_data['id'] . '_format'] = array(
'#type' => 'select',
'#title' => t('Format'),
'#default_value' => $default_value,
);
$system_date_formats = system_get_date_formats();
foreach ($system_date_formats['short'] as $format => $value) {
$format = substr($format, 0, 5);
$element[$element_data['id'] . '_data'][$element_data['id'] . '_format']['#options'][$format] = date($format);
}
$element[$element_data['id'] . '_data'][$element_data['id'] . '_format']['#options']['custom_format'] = 'Your format';
$element[$element_data['id'] . '_data'][$element_data['id'] . '_custom_format'] = array(
'#type' => 'textfield',
'#title' => t('Your format'),
'#description' => t('A user-defined date format. See the PHP manual for available options.' .
'
Note: Following formats are not supported: Day(N, S, w), Month(t), Year(L,o).'),
'#default_value' => isset($element_data['custom_format']) ? $element_data['custom_format'] : DEFAULT_DATE_FORMAT,
'#size' => 30,
'#states' => array(
'visible' => array(
':input[name="' . $element_data['id'] . '_format"]' => array('value' => 'custom_format'),
)
)
);
}
function _qforms_extra_get_date_format($element) {
return ($element['format'] == 'custom_format') ? check_plain($element['custom_format']) : $element['format'];
}