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silverstripe-framework/forms/ComplexTableField.php

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<?php
/**
* @package forms
* @subpackage fields-relational
*/
/**
* Provides a tabuar list in your form with view, edit and add links to edit records
* with a "has-one"-relationship. Detail-views are shown in a greybox-iframe.
* Features pagination in the overview as well as the detail-views.
*
* CAUTION: You need to make sure that the original form-call to the main controller (e.g. EditForm())
* returns a form which includes this field even if no data is loaded,
* to provide a "starting point" for action_callfieldmethod and ReferencedField.
*
* All URL data sent to and from ComplexTableField is encapsulated in $_REQUEST['ctf']
* to avoid side-effects with the main controller.
*
* Example-URL for a "DetailForm"-call explained:
* "/admin/family/?executeForm=EditForm&action_callfieldmethod&fieldName=Individual&childID=7&methodName=edit"
* - executeForm Name of the form on the main rendering page (e.g. "FamilyAdmin")
* - action_callfieldmethod Trigger to call a method of a single field in "EditForm" instead of rendering the whole thing
* - fieldName Name of the targeted formField
* - methodName Method on the formfield (e.g. "ComplexTableField")
* - childID Identifier of the database-record (the targeted table is determined by the $sourceClass parameter)
*
* @todo Find a less fragile solution for accessing this field through the main controller and ReferencedField, e.g.
* build a seperate CTF-instance (doesn't necessarly have to be connected to the original by ReferencedField)
* @todo Control width/height of popup by constructor (hardcoded at the moment)
* @todo Integrate search from MemberTableField.php
* @todo Less performance-hungry implementation of detail-view paging (don't return all items on a single view)
* @todo Use automatic has-many and many-many functions to return a ComponentSet rather than building the join manually
* @package forms
* @subpackage fields-relational
*/
class ComplexTableField extends TableListField {
protected $detailFormFields, $viewAction, $sourceJoin, $sourceItems, $unpagedSourceItems;
/**
* @var Controller
*/
protected $controller;
/**
* @var string Classname of the parent-relation to correctly link new records.
*/
protected $parentClass;
/**
* @var string Database column name for the used relation (e.g. FamilyID
* if one Family has_many Individuals).
*/
protected $parentIdName;
/**
* @var array Influence output without having to subclass the template.
*/
protected $permissions = array(
"add",
"edit",
"show",
"delete",
//"export",
);
/**
* Template for main rendering
*
* @var string
*/
protected $template = "ComplexTableField";
/**
* Template for popup (form rendering)
*
* @var string
*/
protected $templatePopup = "ComplexTableField_popup";
/**
* Classname for each row/item
*
* @var string
*/
public $itemClass = 'ComplexTableField_Item';
/**
* Classname for the popup form
*
* @var string
*/
public $popupClass = 'ComplexTableField_Popup';
/**
* @var boolean Trigger pagination (defaults to true for ComplexTableField)
*/
protected $showPagination = true;
/**
* @var string Caption the popup will show (defaults to the selected action).
* This is set by javascript and used by greybox.
*/
protected $popupCaption = null;
/**
* @var $detailFormValidator Validator
*/
protected $detailFormValidator = null;
/**
* Automatically detect a has-one relationship
* in the popup (=child-class) and save the relation ID.
*
* @var boolean
*/
protected $relationAutoSetting = true;
/**
* See class comments
*
* @param ContentController $controller
* @param string $name
* @param string $sourceClass
* @param array $fieldList
* @param FieldSet $detailFormFields
* @param string $sourceFilter
* @param string $sourceSort
* @param string $sourceJoin
*/
function __construct($controller, $name, $sourceClass, $fieldList, $detailFormFields = null, $sourceFilter = "", $sourceSort = "", $sourceJoin = "") {
$this->detailFormFields = $detailFormFields;
$this->controller = $controller;
$this->pageSize = 10;
Requirements::javascript("jsparty/greybox/AmiJS.js");
Requirements::javascript("jsparty/greybox/greybox.js");
Requirements::javascript('sapphire/javascript/TableListField.js');
Requirements::javascript("sapphire/javascript/ComplexTableField.js");
Requirements::css("jsparty/greybox/greybox.css");
Requirements::css("sapphire/css/ComplexTableField.css");
parent::__construct($name, $sourceClass, $fieldList, $sourceFilter, $sourceSort, $sourceJoin);
}
function isComposite() {
return false;
}
/**
* @return String
*/
function FieldHolder() {
// set caption if required
if($this->popupCaption) {
$id = $this->id();
if(Director::is_ajax()) {
$js = <<<JS
$('$id').GB_Caption = '$this->popupCaption';
JS;
FormResponse::add($js);
} else {
$js = <<<JS
Event.observe(window, 'load', function() { \$('$id').GB_Caption = '$this->popupCaption'; });
JS;
Requirements::customScript($js);
}
}
// compute sourceItems here instead of Items() to ensure that
// pagination and filters are respected on template accessors
$this->sourceItems();
return $this->renderWith($this->template);
}
/**
* Returns non-paginated items.
* Please use Items() for pagination.
* This function is called whenever a complete result-set is needed,
* so even if a single record is displayed in a popup, we need the results
* to make pagination work.
*
* @todo Merge with more efficient querying of TableListField
*/
function sourceItems() {
if($this->sourceItems) {
return $this->sourceItems;
}
$limitClause = "";
if($this->pageSize) {
$limitClause = "{$this->pageSize}";
} else {
$limitClause = "0";
}
if(isset($_REQUEST['ctf'][$this->Name()]['start']) && is_numeric($_REQUEST['ctf'][$this->Name()]['start'])) {
$SQL_start = intval($_REQUEST['ctf'][$this->Name()]['start']);
$limitClause .= " OFFSET {$SQL_start}";
}
$sort = $this->sourceSort;
if(isset($_REQUEST['ctf'][$this->Name()]['sort'])) {
$sort = Convert::raw2sql($_REQUEST['ctf'][$this->Name()]['sort']);
}
$this->sourceItems = DataObject::get($this->sourceClass, $this->sourceFilter, $sort, $this->sourceJoin, $limitClause);
$this->unpagedSourceItems = DataObject::get($this->sourceClass, $this->sourceFilter, $sort, $this->sourceJoin);
$this->totalCount = ($this->unpagedSourceItems) ? $this->unpagedSourceItems->TotalItems() : null;
return $this->sourceItems;
}
/**
* @return DataObjectSet
*/
function Items() {
$this->sourceItems = $this->sourceItems();
if(!$this->sourceItems) {
return null;
}
$pageStart = (isset($_REQUEST['ctf'][$this->Name()]['start']) && is_numeric($_REQUEST['ctf'][$this->Name()]['start'])) ? $_REQUEST['ctf'][$this->Name()]['start'] : 0;
$this->sourceItems->setPageLimits($pageStart, $this->pageSize, $this->totalCount);
$output = new DataObjectSet();
foreach($this->sourceItems as $pageIndex=>$item) {
$output->push(Object::create($this->itemClass,$item, $this, $pageStart+$pageIndex));
}
return $output;
}
/**
* Sets the popup-title by javascript. Make sure to use FormResponse in ajax-requests,
* otherwise the title-change will only take effect on items existing during page-load.
*
* @param $caption String
*/
function setPopupCaption($caption) {
$this->popupCaption = Convert::raw2js($caption);
}
/**
* Renders view, edit and add, depending on the given information.
* The form needs several parameters to function independently of its "parent-form", some derived from the context into a hidden-field,
* some derived from the parent context (which is not accessible here) and delivered by GET:
* ID, Identifier of the currently edited record (only if record is loaded).
* <parentIDName>, Link back to the correct parent record (e.g. "parentID").
* parentClass, Link back to correct container-class (the parent-record might have many 'has-one'-relationships)
* CAUTION: "ID" in the DetailForm would be the "childID" in the overview table.
*/
function DetailForm() {
// Get all the requests
$ID = isset($_REQUEST['ctf']['ID']) ? Convert::raw2xml($_REQUEST['ctf']['ID']) : null;
$childID = isset($_REQUEST['ctf']['childID']) ? Convert::raw2xml($_REQUEST['ctf']['childID']) : null;
$childClass = Convert::raw2xml($_REQUEST['fieldName']);
$this->methodName = isset($_REQUEST['methodName']) ? $_REQUEST['methodName'] : null;
// used to discover fields if requested and for population of field
if(is_numeric($childID)) {
// we have to use the basedataclass, otherwise we might exclude other subclasses
$childData = DataObject::get_by_id(ClassInfo::baseDataClass($this->sourceClass), $childID);
}
// If the fieldset is passed, use it, else use the formfields returned
// from the object via a string method call.
if(is_a($this->detailFormFields,"Fieldset")){
$detailFields = $this->detailFormFields;
} else if( isset( $childData ) && is_string($this->detailFormFields)){
$functioncall = $this->detailFormFields;
if($childData->hasMethod($functioncall)){
$detailFields = $childData->$functioncall();
}
} elseif(! isset( $childData ) || $this->methodName == 'add') {
$SNG_sourceClass = singleton($this->sourceClass);
if(is_numeric($ID) && $this->getParentClass()) {
// make sure the relation-link is existing, even if we just add the sourceClass
// and didn't save it
$parentIDName = $this->getParentIdName( $this->getParentClass(), $this->sourceClass );
$SNG_sourceClass->$parentIDName = $ID;
}
$functioncall = $this->detailFormFields;
if($SNG_sourceClass->hasMethod($functioncall)){
$detailFields = $SNG_sourceClass->$functioncall();
}
else
$detailFields = $SNG_sourceClass->getCMSFields();
} else {
$detailFields = $childData->getCMSFields();
}
if($this->getParentClass()) {
$parentIdName = $this->getParentIdName($this->getParentClass(), $this->sourceClass);
if(!$parentIdName) {
user_error("ComplexTableField::DetailForm() Cannot automatically
determine 'has-one'-relationship to parent,
please use setParentClass() to set it manually",
E_USER_WARNING);
return;
}
// add relational fields
$detailFields->push(new HiddenField("ctf[parentClass]"," ",$this->getParentClass()));
if( $this->relationAutoSetting )
$detailFields->push(new HiddenField("$parentIdName"," ",$ID));
}
// the ID field confuses the Controller-logic in finding the right view for ReferencedField
$detailFields->removeByName('ID');
// only add childID if we're not adding a record
if($this->methodName != 'add') {
$detailFields->push(new HiddenField("ctf[childID]","",$childID));
}
// add a namespaced ID instead thats "converted" by saveComplexTableField()
$detailFields->push(new HiddenField("ctf[ClassName]","",$this->sourceClass));
$readonly = ($this->methodName == "show");
// if no custom validator is set, and there's on present on the object (e.g. Member), use it
if(!isset($this->detailFormValidator) && singleton($this->sourceClass)->hasMethod('getValidator')) {
$this->detailFormValidator = singleton($this->sourceClass)->getValidator();
}
$form = Object::create($this->popupClass,$this, "DetailForm", $detailFields, $this->sourceClass, $readonly, $this->detailFormValidator);
if (is_numeric($childID)) {
if ($this->methodName == "show" || $this->methodName == "edit") {
$form->loadDataFrom($childData);
}
}
if ($this->methodName == "show") {
$form->makeReadonly();
}
return $form;
}
/**
* @param $validator Validator
*/
function setDetailFormValidator( Validator $validator ) {
$this->detailFormValidator = $validator;
}
/**
* Returns the content of this formfield without surrounding layout. Triggered by Javascript
* to update content after a DetailForm-save-action.
*
* @return String
*/
function ajax_render() {
return $this->renderWith($this->template);
}
/**
* Just a hook, processed in {DetailForm()}
*
* @return String
*/
function show() {
if($this->Can('show') !== true) {
return false;
}
$this->methodName = "edit";
$this->sourceItems = $this->sourceItems();
$this->pageSize = 1;
if(isset($_REQUEST['ctf'][$this->Name()]['start']) && is_numeric($_REQUEST['ctf'][$this->Name()]['start'])) {
$this->unpagedSourceItems->setPageLimits($_REQUEST['ctf'][$this->Name()]['start'], $this->pageSize, $this->totalCount);
}
echo $this->renderWith($this->templatePopup);
}
/**
* Just a hook, processed in {DetailForm()}
*
* @return String
*/
function edit() {
if($this->Can('edit') !== true) {
return false;
}
$this->methodName = "edit";
$this->sourceItems = $this->sourceItems();
$this->pageSize = 1;
if(is_numeric($_REQUEST['ctf']['start'])) {
$this->unpagedSourceItems->setPageLimits($_REQUEST['ctf']['start'], $this->pageSize, $this->totalCount);
}
echo $this->renderWith($this->templatePopup);
}
/**
* Just a hook, processed in {DetailForm()}
*
* @return String
*/
function add() {
if($this->Can('add') !== true) {
return false;
}
$this->methodName = "add";
echo $this->renderWith($this->templatePopup);
}
/**
* Calculates the number of columns needed for colspans
* used in template
*
* @return Int
*/
function ItemCount() {
return count($this->fieldList);
}
/**
* Used to toggle paging (makes no sense when adding a record)
*
* @return Boolean
*/
function IsAddMode() {
return ($this->methodName == "add");
}
function sourceID() {
$idField = $this->form->dataFieldByName('ID');
if(!$idField) {
user_error("ComplexTableField needs a formfield named 'ID' to be present", E_USER_ERROR);
}
// because action_callfieldmethod never actually loads data into the form,
// we can't rely on $idField being populated, and fall back to the request-params.
// this is a workaround for a bug where each subsequent popup-call didn't have ID
// of the parent set, and so didn't properly save the relation
return ($idField->Value()) ? $idField->Value() : (isset($_REQUEST['ctf']['ID']) ? $_REQUEST['ctf']['ID'] : null);
}
/**
* #################################
* Pagination
* #################################
*/
function PopupBaseLink() {
$link = $this->FormAction() . "&action_callfieldmethod&fieldName={$this->Name()}";
if(!strpos($link,'ctf[ID]')) {
$link = HTTP::setGetVar('ctf[ID]',$this->sourceID(),$link);
}
return $link;
}
function PopupCurrentItem() {
return $_REQUEST['ctf']['start']+1;
}
function PopupFirstLink() {
if(!is_numeric($_REQUEST['ctf']['start']) || $_REQUEST['ctf']['start'] == 0) {
return null;
}
$item = $this->unpagedSourceItems->First();
$start = 0;
return Convert::raw2att($this->PopupBaseLink() . "&methodName={$_REQUEST['methodName']}&ctf[childID]={$item->ID}&ctf[start]={$start}");
}
function PopupLastLink() {
if(!is_numeric($_REQUEST['ctf']['start']) || $_REQUEST['ctf']['start'] == $this->totalCount-1) {
return null;
}
$item = $this->unpagedSourceItems->Last();
$start = $this->totalCount - 1;
return Convert::raw2att($this->PopupBaseLink() . "&methodName={$_REQUEST['methodName']}&ctf[childID]={$item->ID}&ctf[start]={$start}");
}
function PopupNextLink() {
if(!is_numeric($_REQUEST['ctf']['start']) || $_REQUEST['ctf']['start'] == $this->totalCount-1) {
return null;
}
$item = $this->unpagedSourceItems->getOffset($_REQUEST['ctf']['start'] + 1);
$start = $_REQUEST['ctf']['start'] + 1;
return Convert::raw2att($this->PopupBaseLink() . "&methodName={$_REQUEST['methodName']}&ctf[childID]={$item->ID}&ctf[start]={$start}");
}
function PopupPrevLink() {
if(!is_numeric($_REQUEST['ctf']['start']) || $_REQUEST['ctf']['start'] == 0) {
return null;
}
$item = $this->unpagedSourceItems->getOffset($_REQUEST['ctf']['start'] - 1);
$start = $_REQUEST['ctf']['start'] - 1;
return Convert::raw2att($this->PopupBaseLink() . "&methodName={$_REQUEST['methodName']}&ctf[childID]={$item->ID}&ctf[start]={$start}");
}
/**
* Method handles pagination in asset popup.
*
* @return Object DataObjectSet
*/
function Pagination() {
$this->pageSize = 9;
$currentItem = $this->PopupCurrentItem();
$result = new DataObjectSet();
if($currentItem < 6) {
$offset = 1;
} elseif($this->totalCount - $currentItem <= 4) {
$offset = $currentItem - (10 - ($this->totalCount - $currentItem));
$offset = $offset <= 0 ? 1 : $offset;
} else {
$offset = $currentItem - 5;
}
for($i = $offset;$i <= $offset + $this->pageSize && $i <= $this->totalCount;$i++) {
$start = $i - 1;
$item = $this->unpagedSourceItems->getOffset($i-1);
$links['link'] = Convert::raw2att($this->PopupBaseLink() . "&methodName={$_REQUEST['methodName']}&ctf[childID]={$item->ID}&ctf[start]={$start}");
$links['number'] = $i;
$links['active'] = $i == $currentItem ? false : true;
$result->push(new ArrayData($links));
}
return $result;
}
/**
* #################################
* Utility
* #################################
*/
/**
* Get part of class ancestry (even if popup is not subclassed it might be styled differently in css)
*/
function PopupClasses() {
global $_ALL_CLASSES;
$items = array();
$parents = $_ALL_CLASSES['parents'][$this->class];
foreach($parents as $parent) {
if(!in_array($parent,$_ALL_CLASSES['parents']["TableListField"])) $items[] = $parent . "_Popup";
}
$items[] = $this->class . "_Popup";
return implode(" ", $items);
}
function AddLink() {
return Convert::raw2att("{$this->PopupBaseLink()}&methodName=add");
}
/**
* @return FieldSet
*/
function createFieldSet() {
$fieldset = new FieldSet();
foreach($this->fieldTypes as $key => $fieldType){
$fieldset->push(new $fieldType($key));
}
return $fieldset;
}
/**
* Determines on which relation-class the DetailForm is saved
* by looking at the surrounding form-record.
*
* @return String
*/
function getParentClass() {
if($this->parentClass === false) {
// purposely set parent-relation to false
return false;
} elseif(!empty($this->parentClass)) {
return $this->parentClass;
} else {
return $this->form->getRecord()->ClassName;
}
}
/**
* (Optional) Setter for a correct parent-relation-class.
* Defaults to the record loaded into the surrounding form as a fallback.
* Caution: Please use the classname, not the actual column-name in the database.
*
* @param $className string
*/
function setParentClass($className) {
$this->parentClass = $className;
}
/**
* Returns the db-fieldname of the currently used has_one-relationship.
*/
function getParentIdName( $parentClass, $childClass ) {
return $this->getParentIdNameRelation( $childClass, $parentClass, 'has_one' );
}
/**
* Manually overwrites the parent-ID relations.
* @see setParentClass()
*
* @param String $str Example: FamilyID (when one Individual has_one Family)
*/
function setParentIdName($str) {
$this->parentIdName = $str;
}
/**
* Returns the db-fieldname of the currently used relationship.
*/
function getParentIdNameRelation( $parentClass, $childClass, $relation ){
if($this->parentIdName) return $this->parentIdName;
$relations = singleton( $parentClass )->$relation();
$classes = ClassInfo::ancestry( $childClass );
foreach( $relations as $k => $v ) {
if( $v == $childClass )
return $k . 'ID';
else if( array_key_exists( $v, $classes ) )
return $classes[ $v ] . 'ID';
}
return false;
}
function setTemplatePopup($template) {
$this->templatePopup = $template;
}
}
/**
* Single row of a {@link ComplexTableField}.
* @package forms
* @subpackage fields-relational
*/
class ComplexTableField_Item extends TableListField_Item {
/**
* Needed to transfer pagination-status from overview.
*/
protected $start;
function __construct(DataObject $item, ComplexTableField $parent, $start) {
$this->start = $start;
parent::__construct($item, $parent);
}
function PopupBaseLink() {
return $this->parent->FormAction() . "&action_callfieldmethod&fieldName={$this->parent->Name()}&ctf[childID]={$this->item->ID}&ctf[ID]={$this->parent->sourceID()}&ctf[start]={$this->start}";
}
function EditLink() {
return Convert::raw2att($this->PopupBaseLink() . "&methodName=edit");
}
function ShowLink() {
return Convert::raw2att($this->PopupBaseLink() . "&methodName=show");
}
function DeleteLink() {
return Convert::raw2att($this->PopupBaseLink() . "&methodName=delete");
}
}
/**
* ComplexTablefield_popup is rendered with a lightbox and can load a more
* detailed view of the source class your presenting.
* You can customise the fields and requirements as well as any
* permissions you might need.
* @package forms
* @subpackage fields-relational
*/
class ComplexTableField_Popup extends Form {
protected $sourceClass;
function __construct($controller, $name, $field, $sourceClass, $readonly=false, $validator = null) {
/**
* WARNING: DO NOT CHANGE THE ORDER OF THESE JS FILES
* Some have special requirements.
*/
Requirements::clear();
//Requirements::css('cms/css/layout.css');
Requirements::css('jsparty/tabstrip/tabstrip.css');
Requirements::css('sapphire/css/Form.css');
Requirements::css('sapphire/css/ComplexTableField_popup.css');
Requirements::css('cms/css/typography.css');
Requirements::css('cms/css/cms_right.css');
Requirements::javascript("jsparty/prototype.js");
Requirements::javascript("jsparty/behaviour.js");
Requirements::javascript("jsparty/prototype_improvements.js");
Requirements::javascript("jsparty/loader.js");
Requirements::javascript("jsparty/tabstrip/tabstrip.js");
Requirements::javascript("jsparty/scriptaculous/scriptaculous.js");
Requirements::javascript("jsparty/scriptaculous/controls.js");
Requirements::javascript("jsparty/layout_helpers.js");
Requirements::javascript("cms/javascript/LeftAndMain.js");
Requirements::javascript("cms/javascript/LeftAndMain_right.js");
Requirements::javascript("sapphire/javascript/TableField.js");
Requirements::javascript("sapphire/javascript/ComplexTableField.js");
Requirements::javascript("sapphire/javascript/ComplexTableField_popup.js");
$this->sourceClass = $sourceClass;
if(singleton($sourceClass)->hasMethod('getRequirementsForPopup')){
singleton($sourceClass)->getRequirementsForPopup();
}
$actions = new FieldSet();
if(!$readonly) {
$actions->push(
$saveAction = new FormAction("saveComplexTableField", "Save")
);
$saveAction->addExtraClass('save');
}
parent::__construct($controller, $name, $field, $actions, $validator);
}
function FieldHolder() {
return $this->renderWith('ComplexTableField_Form');
}
function ShowPagination() {
return $this->controller->ShowPagination();
}
/**
* Use the URL-Parameter "action_saveComplexTableField"
* to provide a clue to the main controller if the main form has to be rendered,
* even if there is no action relevant for the main controller (to provide the instance of ComplexTableField
* which in turn saves the record.
*
* @see {Form::ReferencedField}).
*/
function saveComplexTableField() {
if(isset($_REQUEST['ctf']['childID']) && is_numeric($_REQUEST['ctf']['childID'])) {
$childObject = DataObject::get_by_id($this->sourceClass, $_REQUEST['ctf']['childID']);
} else {
$childObject = new $this->sourceClass();
$this->fields->removeByName('ID');
}
$this->saveInto($childObject);
$childObject->write();
if(Director::is_ajax()) {
// if ajax-call in an iframe, update window
$form = $this->controller->DetailForm();
$form->loadDataFrom($childObject);
FormResponse::update_dom_id($form->FormName(), $form->formHtmlContent(), true, 'update');
return FormResponse::respond();
} else {
// else redirect to referrer
Director::redirect(substr($_SERVER['REQUEST_URI'],0,strpos($_SERVER['REQUEST_URI'],"?")));
}
}
}
?>
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