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https://github.com/silverstripe/silverstripe-framework
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API Improved support for versioned DataObject API GridField extensions for versioned dataobjects API De-couple File and ErrorPage API File::handle_shortcode now respects canView() API AssetControlExtension is now able to delete, publish, or protect files API Upload now protects new assets by default
683 lines
19 KiB
PHP
683 lines
19 KiB
PHP
<?php
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/**
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* A list designed to hold form field instances.
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*
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* @package forms
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* @subpackage fields-structural
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*/
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class FieldList extends ArrayList {
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/**
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* Cached flat representation of all fields in this set,
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* including fields nested in {@link CompositeFields}.
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*
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* @uses self::collateDataFields()
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* @var array
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*/
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protected $sequentialSet;
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/**
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* @var array
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*/
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protected $sequentialSaveableSet;
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/**
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* @todo Documentation
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*/
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protected $containerField;
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/**
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* @var array Ordered list of regular expressions,
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* see {@link setTabPathRewrites()}.
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*/
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protected $tabPathRewrites = array();
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public function __construct($items = array()) {
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if (!is_array($items) || func_num_args() > 1) {
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$items = func_get_args();
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}
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parent::__construct($items);
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foreach ($items as $item) {
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if ($item instanceof FormField) $item->setContainerFieldList($this);
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}
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}
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/**
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* Return a sequential set of all fields that have data. This excludes wrapper composite fields
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* as well as heading / help text fields.
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*/
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public function dataFields() {
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if(!$this->sequentialSet) $this->collateDataFields($this->sequentialSet);
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return $this->sequentialSet;
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}
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public function saveableFields() {
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if(!$this->sequentialSaveableSet) $this->collateDataFields($this->sequentialSaveableSet, true);
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return $this->sequentialSaveableSet;
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}
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protected function flushFieldsCache() {
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$this->sequentialSet = null;
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$this->sequentialSaveableSet = null;
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}
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protected function collateDataFields(&$list, $saveableOnly = false) {
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foreach($this as $field) {
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if($field->isComposite()) $field->collateDataFields($list, $saveableOnly);
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if($saveableOnly) {
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$isIncluded = ($field->hasData() && !$field->isReadonly() && !$field->isDisabled());
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} else {
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$isIncluded = ($field->hasData());
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}
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if($isIncluded) {
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$name = $field->getName();
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if(isset($list[$name])) {
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$errSuffix = "";
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if($this->form) {
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$errSuffix = " in your '{$this->form->class}' form called '" . $this->form->Name() . "'";
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} else {
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$errSuffix = '';
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}
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user_error("collateDataFields() I noticed that a field called '$name' appears twice$errSuffix.",
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E_USER_ERROR);
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}
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$list[$name] = $field;
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}
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}
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}
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/**
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* Add an extra field to a tab within this FieldList.
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* This is most commonly used when overloading getCMSFields()
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*
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* @param string $tabName The name of the tab or tabset. Subtabs can be referred to as TabSet.Tab
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* or TabSet.Tab.Subtab. This function will create any missing tabs.
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* @param FormField $field The {@link FormField} object to add to the end of that tab.
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* @param string $insertBefore The name of the field to insert before. Optional.
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*/
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public function addFieldToTab($tabName, $field, $insertBefore = null) {
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// This is a cache that must be flushed
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$this->flushFieldsCache();
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// Find the tab
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$tab = $this->findOrMakeTab($tabName);
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// Add the field to the end of this set
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if($insertBefore) $tab->insertBefore($insertBefore, $field);
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else $tab->push($field);
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}
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/**
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* Add a number of extra fields to a tab within this FieldList.
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* This is most commonly used when overloading getCMSFields()
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*
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* @param string $tabName The name of the tab or tabset. Subtabs can be referred to as TabSet.Tab
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* or TabSet.Tab.Subtab.
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* This function will create any missing tabs.
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* @param array $fields An array of {@link FormField} objects.
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*/
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public function addFieldsToTab($tabName, $fields, $insertBefore = null) {
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$this->flushFieldsCache();
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// Find the tab
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$tab = $this->findOrMakeTab($tabName);
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// Add the fields to the end of this set
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foreach($fields as $field) {
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// Check if a field by the same name exists in this tab
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if($insertBefore) {
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$tab->insertBefore($insertBefore, $field);
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} elseif(($name = $field->getName()) && $tab->fieldByName($name)) {
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// It exists, so we need to replace the old one
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$this->replaceField($field->getName(), $field);
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} else {
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$tab->push($field);
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}
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}
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}
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/**
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* Remove the given field from the given tab in the field.
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*
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* @param string $tabName The name of the tab
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* @param string $fieldName The name of the field
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*/
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public function removeFieldFromTab($tabName, $fieldName) {
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$this->flushFieldsCache();
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// Find the tab
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$tab = $this->findOrMakeTab($tabName);
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$tab->removeByName($fieldName);
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}
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/**
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* Removes a number of fields from a Tab/TabSet within this FieldList.
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*
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* @param string $tabName The name of the Tab or TabSet field
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* @param array $fields A list of fields, e.g. array('Name', 'Email')
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*/
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public function removeFieldsFromTab($tabName, $fields) {
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$this->flushFieldsCache();
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// Find the tab
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$tab = $this->findOrMakeTab($tabName);
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// Add the fields to the end of this set
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foreach($fields as $field) $tab->removeByName($field);
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}
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/**
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* Remove a field or fields from this FieldList by Name.
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* The field could also be inside a CompositeField.
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*
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* @param string|array $fieldName The name of, or an array with the field(s) or tab(s)
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* @param boolean $dataFieldOnly If this is true, then a field will only
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* be removed if it's a data field. Dataless fields, such as tabs, will
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* be left as-is.
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*/
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public function removeByName($fieldName, $dataFieldOnly = false) {
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if(!$fieldName) {
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user_error('FieldList::removeByName() was called with a blank field name.', E_USER_WARNING);
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}
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// Handle array syntax
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if(is_array($fieldName)) {
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foreach($fieldName as $field){
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$this->removeByName($field, $dataFieldOnly);
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}
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return;
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}
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$this->flushFieldsCache();
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foreach($this->items as $i => $child) {
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if(is_object($child)){
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$childName = $child->getName();
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if(!$childName) $childName = $child->Title();
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if(($childName == $fieldName) && (!$dataFieldOnly || $child->hasData())) {
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array_splice( $this->items, $i, 1 );
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break;
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} else if($child->isComposite()) {
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$child->removeByName($fieldName, $dataFieldOnly);
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}
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}
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}
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}
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/**
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* Replace a single field with another. Ignores dataless fields such as Tabs and TabSets
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*
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* @param string $fieldName The name of the field to replace
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* @param FormField $newField The field object to replace with
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* @return boolean TRUE field was successfully replaced
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* FALSE field wasn't found, nothing changed
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*/
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public function replaceField($fieldName, $newField) {
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$this->flushFieldsCache();
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foreach($this->items as $i => $field) {
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if(is_object($field)) {
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if($field->getName() == $fieldName && $field->hasData()) {
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$this->items[$i] = $newField;
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return true;
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} else if($field->isComposite()) {
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if($field->replaceField($fieldName, $newField)) return true;
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}
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}
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}
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return false;
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}
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/**
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* Rename the title of a particular field name in this set.
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*
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* @param string $fieldName Name of field to rename title of
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* @param string $newFieldTitle New title of field
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* @return boolean
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*/
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public function renameField($fieldName, $newFieldTitle) {
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$field = $this->dataFieldByName($fieldName);
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if(!$field) return false;
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$field->setTitle($newFieldTitle);
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return $field->Title() == $newFieldTitle;
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}
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/**
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* @return boolean
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*/
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public function hasTabSet() {
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foreach($this->items as $i => $field) {
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if(is_object($field) && $field instanceof TabSet) {
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return true;
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}
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}
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return false;
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}
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/**
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* Returns the specified tab object, creating it if necessary.
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*
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* @todo Support recursive creation of TabSets
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*
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* @param string $tabName The tab to return, in the form "Tab.Subtab.Subsubtab".
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* Caution: Does not recursively create TabSet instances, you need to make sure everything
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* up until the last tab in the chain exists.
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* @param string $title Natural language title of the tab. If {@link $tabName} is passed in dot notation,
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* the title parameter will only apply to the innermost referenced tab.
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* The title is only changed if the tab doesn't exist already.
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* @return Tab The found or newly created Tab instance
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*/
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public function findOrMakeTab($tabName, $title = null) {
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// Backwards compatibility measure: Allow rewriting of outdated tab paths
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$tabName = $this->rewriteTabPath($tabName);
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$parts = explode('.',$tabName);
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$last_idx = count($parts) - 1;
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// We could have made this recursive, but I've chosen to keep all the logic code within FieldList rather than
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// add it to TabSet and Tab too.
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$currentPointer = $this;
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foreach($parts as $k => $part) {
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$parentPointer = $currentPointer;
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$currentPointer = $currentPointer->fieldByName($part);
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// Create any missing tabs
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if(!$currentPointer) {
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if(is_a($parentPointer, 'TabSet')) {
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// use $title on the innermost tab only
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if ($k == $last_idx) {
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$currentPointer = isset($title) ? new Tab($part, $title) : new Tab($part);
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}
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else {
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$currentPointer = new TabSet($part);
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}
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$parentPointer->push($currentPointer);
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}
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else {
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$withName = ($parentPointer->hasMethod('Name')) ? " named '{$parentPointer->getName()}'" : null;
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user_error("FieldList::addFieldToTab() Tried to add a tab to object"
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. " '{$parentPointer->class}'{$withName} - '$part' didn't exist.", E_USER_ERROR);
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}
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}
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}
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return $currentPointer;
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}
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/**
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* Returns a named field.
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* You can use dot syntax to get fields from child composite fields
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*
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* @todo Implement similarly to dataFieldByName() to support nested sets - or merge with dataFields()
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*
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* @param string $name
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* @return FormField
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*/
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public function fieldByName($name) {
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$name = $this->rewriteTabPath($name);
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if(strpos($name,'.') !== false) list($name, $remainder) = explode('.',$name,2);
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else $remainder = null;
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foreach($this->items as $child) {
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if(trim($name) == trim($child->getName()) || $name == $child->id) {
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if($remainder) {
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if($child->isComposite()) {
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return $child->fieldByName($remainder);
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} else {
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user_error("Trying to get field '$remainder' from non-composite field $child->class.$name",
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E_USER_WARNING);
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return null;
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}
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} else {
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return $child;
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}
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}
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}
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}
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/**
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* Returns a named field in a sequential set.
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* Use this if you're using nested FormFields.
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*
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* @param string $name The name of the field to return
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* @return FormField instance
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*/
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public function dataFieldByName($name) {
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if($dataFields = $this->dataFields()) {
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foreach($dataFields as $child) {
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if(trim($name) == trim($child->getName()) || $name == $child->id) return $child;
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}
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}
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}
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/**
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* Inserts a field before a particular field in a FieldList.
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*
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* @param string $name Name of the field to insert before
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* @param FormField $item The form field to insert
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* @return FormField|false
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*/
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public function insertBefore($name, $item) {
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// Backwards compatibility for order of arguments
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if($name instanceof FormField) {
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list($item, $name) = array($name, $item);
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}
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$this->onBeforeInsert($item);
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$item->setContainerFieldList($this);
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$i = 0;
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foreach($this->items as $child) {
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if($name == $child->getName() || $name == $child->id) {
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array_splice($this->items, $i, 0, array($item));
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return $item;
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} elseif($child->isComposite()) {
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$ret = $child->insertBefore($name, $item);
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if($ret) return $ret;
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}
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$i++;
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}
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return false;
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}
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/**
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* Inserts a field after a particular field in a FieldList.
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*
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* @param string $name Name of the field to insert after
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* @param FormField $item The form field to insert
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* @return FormField|false
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*/
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public function insertAfter($name, $item) {
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// Backwards compatibility for order of arguments
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if($name instanceof FormField) {
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list($item, $name) = array($name, $item);
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}
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$this->onBeforeInsert($item);
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$item->setContainerFieldList($this);
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$i = 0;
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foreach($this->items as $child) {
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if($name == $child->getName() || $name == $child->id) {
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array_splice($this->items, $i+1, 0, array($item));
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return $item;
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} elseif($child->isComposite()) {
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$ret = $child->insertAfter($name, $item);
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if($ret) return $ret;
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}
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$i++;
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}
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return false;
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}
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/**
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* Push a single field onto the end of this FieldList instance.
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*
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* @param FormField $item The FormField to add
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*/
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public function push($item) {
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$this->onBeforeInsert($item);
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$item->setContainerFieldList($this);
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return parent::push($item);
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}
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/**
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* Push a single field onto the beginning of this FieldList instance.
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*
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* @param FormField $item The FormField to add
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*/
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public function unshift($item) {
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$this->onBeforeInsert($item);
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$item->setContainerFieldList($this);
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return parent::unshift($item);
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}
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/**
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* Handler method called before the FieldList is going to be manipulated.
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*/
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protected function onBeforeInsert($item) {
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$this->flushFieldsCache();
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if($item->getName()) {
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$this->rootFieldList()->removeByName($item->getName(), true);
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}
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}
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/**
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* Set the Form instance for this FieldList.
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*
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* @param Form $form The form to set this FieldList to
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*/
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public function setForm($form) {
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foreach($this as $field) {
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$field->setForm($form);
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}
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return $this;
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}
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/**
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* Load the given data into this form.
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*
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* @param data An map of data to load into the FieldList
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*/
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public function setValues($data) {
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foreach($this->dataFields() as $field) {
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$fieldName = $field->getName();
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if(isset($data[$fieldName])) $field->setValue($data[$fieldName]);
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}
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return $this;
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}
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/**
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* Return all <input type="hidden"> fields
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* in a form - including fields nested in {@link CompositeFields}.
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* Useful when doing custom field layouts.
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*
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* @return FieldList
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*/
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public function HiddenFields() {
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$hiddenFields = new FieldList();
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$dataFields = $this->dataFields();
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if($dataFields) foreach($dataFields as $field) {
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if($field instanceof HiddenField) $hiddenFields->push($field);
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}
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return $hiddenFields;
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}
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/**
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* Return all fields except for the hidden fields.
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* Useful when making your own simplified form layouts.
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*/
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public function VisibleFields() {
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$visibleFields = new FieldList();
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foreach($this as $field) {
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if(!($field instanceof HiddenField)) $visibleFields->push($field);
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}
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return $visibleFields;
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}
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/**
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* Transform this FieldList with a given tranform method,
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* e.g. $this->transform(new ReadonlyTransformation())
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*
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* @return FieldList
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*/
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public function transform($trans) {
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$this->flushFieldsCache();
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$newFields = new FieldList();
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foreach($this as $field) {
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$newFields->push($field->transform($trans));
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}
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return $newFields;
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}
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/**
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* Returns the root field set that this belongs to
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*/
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public function rootFieldList() {
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if($this->containerField) return $this->containerField->rootFieldList();
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else return $this;
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}
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public function setContainerField($field) {
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$this->containerField = $field;
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return $this;
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}
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/**
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* Transforms this FieldList instance to readonly.
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*
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* @return FieldList
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*/
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public function makeReadonly() {
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return $this->transform(new ReadonlyTransformation());
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}
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/**
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* Transform the named field into a readonly feld.
|
|
*
|
|
* @param string|FormField
|
|
*/
|
|
public function makeFieldReadonly($field) {
|
|
$fieldName = ($field instanceof FormField) ? $field->getName() : $field;
|
|
$srcField = $this->dataFieldByName($fieldName);
|
|
$this->replaceField($fieldName, $srcField->performReadonlyTransformation());
|
|
}
|
|
|
|
/**
|
|
* Change the order of fields in this FieldList by specifying an ordered list of field names.
|
|
* This works well in conjunction with SilverStripe's scaffolding functions: take the scaffold, and
|
|
* shuffle the fields around to the order that you want.
|
|
*
|
|
* Please note that any tabs or other dataless fields will be clobbered by this operation.
|
|
*
|
|
* @param array $fieldNames Field names can be given as an array, or just as a list of arguments.
|
|
*/
|
|
public function changeFieldOrder($fieldNames) {
|
|
// Field names can be given as an array, or just as a list of arguments.
|
|
if(!is_array($fieldNames)) $fieldNames = func_get_args();
|
|
|
|
// Build a map of fields indexed by their name. This will make the 2nd step much easier.
|
|
$fieldMap = array();
|
|
foreach($this->dataFields() as $field) $fieldMap[$field->getName()] = $field;
|
|
|
|
// Iterate through the ordered list of names, building a new array to be put into $this->items.
|
|
// While we're doing this, empty out $fieldMap so that we can keep track of leftovers.
|
|
// Unrecognised field names are okay; just ignore them
|
|
$fields = array();
|
|
foreach($fieldNames as $fieldName) {
|
|
if(isset($fieldMap[$fieldName])) {
|
|
$fields[] = $fieldMap[$fieldName];
|
|
unset($fieldMap[$fieldName]);
|
|
}
|
|
}
|
|
|
|
// Add the leftover fields to the end of the list.
|
|
$fields = array_values($fields + $fieldMap);
|
|
|
|
// Update our internal $this->items parameter.
|
|
$this->items = $fields;
|
|
|
|
$this->flushFieldsCache();
|
|
}
|
|
|
|
/**
|
|
* Find the numerical position of a field within
|
|
* the children collection. Doesn't work recursively.
|
|
*
|
|
* @param string|FormField
|
|
* @return int Position in children collection (first position starts with 0). Returns FALSE if the field can't
|
|
* be found.
|
|
*/
|
|
public function fieldPosition($field) {
|
|
if(is_object($field)) $field = $field->getName();
|
|
|
|
$i = 0;
|
|
foreach($this->dataFields() as $child) {
|
|
if($child->getName() == $field) return $i;
|
|
$i++;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Ordered list of regular expressions
|
|
* matching a tab path, to their rewrite rule (through preg_replace()).
|
|
* Mainly used for backwards compatibility.
|
|
* Ensure that more specific rules are placed earlier in the list,
|
|
* and that tabs with children are accounted for in the rule sets.
|
|
*
|
|
* Example:
|
|
* $fields->setTabPathRewriting(array(
|
|
* // Rewrite specific innermost tab
|
|
* '/^Root\.Content\.Main$/' => 'Root.Content',
|
|
* // Rewrite all innermost tabs
|
|
* '/^Root\.Content\.([^.]+)$/' => 'Root.\\1',
|
|
* ));
|
|
*
|
|
* @param array $rewrites
|
|
*/
|
|
public function setTabPathRewrites($rewrites) {
|
|
$this->tabPathRewrites = $rewrites;
|
|
}
|
|
|
|
/**
|
|
* @return array
|
|
*/
|
|
public function getTabPathRewrites() {
|
|
return $this->tabPathRewrites;
|
|
}
|
|
|
|
/**
|
|
* Support function for backwards compatibility purposes.
|
|
* Caution: Volatile API, might be removed in 3.1 or later.
|
|
*
|
|
* @param String $tabname Path to a tab, e.g. "Root.Content.Main"
|
|
* @return String Rewritten path, based on {@link tabPathRewrites}
|
|
*/
|
|
protected function rewriteTabPath($name) {
|
|
$isRunningTest = (class_exists('SapphireTest', false) && SapphireTest::is_running_test());
|
|
foreach($this->getTabPathRewrites() as $regex => $replace) {
|
|
if(preg_match($regex, $name)) {
|
|
$newName = preg_replace($regex, $replace, $name);
|
|
Deprecation::notice('3.0.0',
|
|
sprintf(
|
|
'Using outdated tab path "%s", please use the new location "%s" instead',
|
|
$name,
|
|
$newName
|
|
),
|
|
Deprecation::SCOPE_GLOBAL
|
|
);
|
|
return $newName;
|
|
}
|
|
}
|
|
|
|
// No match found, return original path
|
|
return $name;
|
|
}
|
|
|
|
/**
|
|
* Default template rendering of a FieldList will concatenate all FieldHolder values.
|
|
*/
|
|
public function forTemplate() {
|
|
$output = "";
|
|
foreach($this as $field) {
|
|
$output .= $field->FieldHolder();
|
|
}
|
|
return $output;
|
|
}
|
|
}
|