mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-08-28 13:36:12 +02:00
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/branches/2.4@92411 467b73ca-7a2a-4603-9d3b-597d59a354a9
183 lines
5.1 KiB
PHP
Executable File
183 lines
5.1 KiB
PHP
Executable File
<?php
|
|
/**
|
|
* Dropdown-like field that allows you to select an item from a hierachical AJAX-expandable tree
|
|
*
|
|
* @package forms
|
|
* @subpackage fields-relational
|
|
*/
|
|
class TreeDropdownField extends FormField {
|
|
|
|
public static $url_handlers = array (
|
|
'$Action!/$ID' => '$Action'
|
|
);
|
|
|
|
public static $allowed_actions = array (
|
|
'tree'
|
|
);
|
|
|
|
/**
|
|
* @ignore
|
|
*/
|
|
protected $sourceObject, $keyField, $labelField, $filterCallback, $baseID = 0;
|
|
|
|
/**
|
|
* @param string $name the field name
|
|
* @param string $title the field label
|
|
* @param string $souceClass the class to display in the tree, must have the "Hierachy" extension.
|
|
* @param string $keyField to field on the source class to save as the field value (default ID).
|
|
* @param string $labelField the field name to show as the human-readable value on the tree (default Title).
|
|
*/
|
|
public function __construct($name, $title = null, $sourceObject = 'Group', $keyField = 'ID', $labelField = 'Title') {
|
|
$this->sourceObject = $sourceObject;
|
|
$this->keyField = $keyField;
|
|
$this->labelField = $labelField;
|
|
|
|
if(!Object::has_extension($this->sourceObject, 'Hierarchy')) {
|
|
throw new Exception (
|
|
"TreeDropdownField: the source class '$this->sourceObject' must have the Hierarchy extension applied"
|
|
);
|
|
}
|
|
|
|
Requirements::add_i18n_javascript(SAPPHIRE_DIR . '/javascript/lang');
|
|
|
|
Requirements::javascript(THIRDPARTY_DIR . '/prototype.js');
|
|
Requirements::javascript(THIRDPARTY_DIR . '/behaviour.js');
|
|
Requirements::javascript(THIRDPARTY_DIR . '/tree/tree.js');
|
|
Requirements::javascript(SAPPHIRE_DIR . '/javascript/TreeSelectorField.js');
|
|
|
|
Requirements::css(THIRDPARTY_DIR . '/tree/tree.css');
|
|
Requirements::css(SAPPHIRE_DIR . '/css/TreeDropdownField.css');
|
|
|
|
parent::__construct($name, $title);
|
|
}
|
|
|
|
/**
|
|
* Set the ID of the root node of the tree. This defaults to 0 - i.e. displays the whole tree.
|
|
*
|
|
* @param int $ID
|
|
*/
|
|
public function setTreeBaseID($ID) {
|
|
$this->baseID = (int) $ID;
|
|
}
|
|
|
|
/**
|
|
* Set a callback used to filter the values of the tree before displaying to the user.
|
|
*
|
|
* @param callback $callback
|
|
*/
|
|
public function setFilterFunction($callback) {
|
|
if(!is_callable($callback, true)) {
|
|
throw new InvalidArgumentException('TreeDropdownField->setFilterCallback(): not passed a valid callback');
|
|
}
|
|
|
|
$this->filterCallback = $callback;
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
public function Field() {
|
|
if($this->Value() && $record = $this->objectForKey($this->Value())) {
|
|
$title = $record->{$this->labelField};
|
|
} else {
|
|
$title = _t('DropdownField.CHOOSE', '(Choose)', PR_MEDIUM, 'start value of a dropdown');
|
|
}
|
|
|
|
return $this->createTag (
|
|
'div',
|
|
array (
|
|
'id' => "TreeDropdownField_{$this->id()}",
|
|
'class' => 'TreeDropdownField single' . ($this->extraClass() ? " {$this->extraClass()}" : '')
|
|
),
|
|
$this->createTag (
|
|
'input',
|
|
array (
|
|
'id' => $this->id(),
|
|
'type' => 'hidden',
|
|
'name' => $this->name,
|
|
'value' => $this->value
|
|
)
|
|
) . $this->createTag (
|
|
'span',
|
|
array (
|
|
'class' => 'items'
|
|
),
|
|
$title
|
|
) . $this->createTag (
|
|
'a',
|
|
array (
|
|
'href' => '#',
|
|
'title' => 'open',
|
|
'class' => 'editLink'
|
|
),
|
|
' '
|
|
)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Get the whole tree of a part of the tree via an AJAX request.
|
|
*
|
|
* @param SS_HTTPRequest $request
|
|
* @return string
|
|
*/
|
|
public function tree(SS_HTTPRequest $request) {
|
|
$isSubTree = false;
|
|
|
|
if($ID = (int) $request->latestparam('ID')) {
|
|
$obj = DataObject::get_by_id($this->sourceObject, $ID);
|
|
$isSubTree = true;
|
|
|
|
if(!$obj) {
|
|
throw new Exception (
|
|
"TreeDropdownField->tree(): the object #$ID of type $this->sourceObject could not be found"
|
|
);
|
|
}
|
|
} else {
|
|
if($this->baseID) {
|
|
$obj = DataObject::get_by_id($this->sourceObject, $this->baseID);
|
|
}
|
|
|
|
if(!$this->baseID || !$obj) $obj = singleton($this->sourceObject);
|
|
}
|
|
|
|
if($this->filterCallback) {
|
|
$obj->setMarkingFilterFunction($this->filterCallback);
|
|
} elseif($this->sourceObject == 'Folder') {
|
|
$obj->setMarkingFilter('ClassName', 'Folder');
|
|
}
|
|
|
|
$obj->markPartialTree();
|
|
|
|
if($forceValues = $this->value) {
|
|
if(($values = preg_split('/,\s*/', $forceValues)) && count($values)) foreach($values as $value) {
|
|
$obj->markToExpose($this->objectForKey($value));
|
|
}
|
|
}
|
|
|
|
$eval = '"<li id=\"selector-' . $this->Name() . '-{$child->' . $this->keyField . '}\" class=\"$child->class"' .
|
|
' . $child->markingClasses() . "\"><a rel=\"$child->ID\">" . $child->' . $this->labelField . ' . "</a>"';
|
|
|
|
if($isSubTree) {
|
|
return substr(trim($obj->getChildrenAsUL('', $eval, null, true)), 4, -5);
|
|
}
|
|
|
|
return $obj->getChildrenAsUL('class="tree"', $eval, null, true);
|
|
}
|
|
|
|
/**
|
|
* Get the object where the $keyField is equal to a certain value
|
|
*
|
|
* @param string|int $key
|
|
* @return DataObject
|
|
*/
|
|
protected function objectForKey($key) {
|
|
if($this->keyField == 'ID') {
|
|
return DataObject::get_by_id($this->sourceObject, $key);
|
|
} else {
|
|
return DataObject::get_one($this->sourceObject, "\"{$this->keyField}\" = '" . Convert::raw2sql($key) . "'");
|
|
}
|
|
}
|
|
|
|
}
|