Файл: framework/forms/GroupedDropdownField.php
Строк: 69
<?php
/**
* Grouped dropdown, using <optgroup> tags.
*
* $source parameter (from DropdownField) must be a two dimensional array.
* The first level of the array is used for the <optgroup>, and the second
* level are the <options> for each group.
*
* Returns a <select> tag containing all the appropriate <option> tags, with
* <optgroup> tags around the <option> tags as required.
*
* <b>Usage</b>
*
* <code>
* new GroupedDropdownField(
* $name = "dropdown",
* $title = "Simple Grouped Dropdown",
* $source = array(
* "numbers" => array(
* "1" => "1",
* "2" => "2",
* "3" => "3",
* "4" => "4"
* ),
* "letters" => array(
* "1" => "A",
* "2" => "B",
* "3" => "C",
* "4" => "D",
* "5" => "E",
* "6" => "F"
* )
* )
* )
* </code>
*
* <b>Disabling individual items</b>
*
* <code>
* $groupedDrDownField->setDisabledItems(
* array(
* "numbers" => array(
* "1" => "1",
* "3" => "3"
* ),
* "letters" => array(
* "3" => "C"
* )
* )
* )
* </code>
*
* @package forms
* @subpackage fields-basic
*/
class GroupedDropdownField extends DropdownField {
public function Field($properties = array()) {
$options = '';
foreach($this->getSource() as $value => $title) {
if(is_array($title)) {
$options .= "<optgroup label="$value">";
foreach($title as $value2 => $title2) {
$disabled = '';
if( array_key_exists($value, $this->disabledItems)
&& is_array($this->disabledItems[$value])
&& in_array($value2, $this->disabledItems[$value]) ){
$disabled = 'disabled="disabled"';
}
$selected = $value2 == $this->value ? " selected="selected"" : "";
$options .= "<option$selected value="$value2" $disabled>$title2</option>";
}
$options .= "</optgroup>";
} else { // Fall back to the standard dropdown field
$disabled = '';
if( in_array($value, $this->disabledItems) ){
$disabled = 'disabled="disabled"';
}
$selected = $value == $this->value ? " selected="selected"" : "";
$options .= "<option$selected value="$value" $disabled>$title</option>";
}
}
return FormField::create_tag('select', $this->getAttributes(), $options);
}
public function Type() {
return 'groupeddropdown dropdown';
}
/**
* Validate this field
*
* @param Validator $validator
* @return bool
*/
public function validate($validator) {
$valid = false;
$source = $this->getSourceAsArray();
$disabled = $this->getDisabledItems();
if ($this->value) {
foreach ($source as $value => $title) {
if (is_array($title) && array_key_exists($this->value, $title)) {
// Check that the set value is not in the list of disabled items
if (!isset($disabled[$value]) || !in_array($this->value, $disabled[$value])) {
$valid = true;
}
// Check that the value matches and is not disabled
} elseif($this->value == $value && !in_array($this->value, $disabled)) {
$valid = true;
}
}
} elseif ($this->getHasEmptyDefault()) {
$valid = true;
}
if (!$valid) {
$validator->validationError(
$this->name,
_t(
'DropdownField.SOURCE_VALIDATION',
"Please select a value within the list provided. {value} is not a valid option",
array('value' => $this->value)
),
"validation"
);
return false;
}
return true;
}
}