320 lines
8.8 KiB
PHP
Executable File
320 lines
8.8 KiB
PHP
Executable File
<?php
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/**
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* Base class for all fields that contain other fields.
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* Implements sequentialisation - so that when we're saving / loading data, we can populate
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* a tabbed form properly. All of the children are stored in $this->children
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* @package forms
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* @subpackage fields-structural
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*/
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class CompositeField extends FormField {
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/**
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* @var FieldSet
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*/
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protected $children;
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/**
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* Set to true when this field is a readonly field
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*/
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protected $readonly;
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/**
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* @var $columnCount int Toggle different css-rendering for multiple columns
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* ("onecolumn", "twocolumns", "threecolumns"). The content is determined
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* by the $children-array, so wrap all items you want to have grouped in a
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* column inside a CompositeField.
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* Caution: Please make sure that this variable actually matches the
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* count of your $children.
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*/
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protected $columnCount = null;
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public function __construct($children = null) {
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if($children instanceof FieldSet) {
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$this->children = $children;
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} elseif(is_array($children)) {
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$this->children = new FieldSet($children);
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} else {
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$children = is_array(func_get_args()) ? func_get_args() : array();
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$this->children = new FieldSet($children);
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}
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$this->children->setContainerField($this);
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Object::__construct();
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}
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/**
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* Returns all the sub-fields, suitable for <% control FieldSet %>
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*/
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public function FieldSet() {
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return $this->children;
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}
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public function setID($id) {
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$this->id = $id;
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}
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public function Field() {
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return $this->FieldHolder();
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}
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/**
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* Accessor method for $this->children
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* @return FieldSet
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*/
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public function getChildren() {
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return $this->children;
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}
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/**
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* @param FieldSet $children
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*/
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public function setChildren($children) {
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$this->children = $children;
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}
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/**
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* Returns the fields nested inside another DIV
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*/
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function FieldHolder() {
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$fs = $this->FieldSet();
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$idAtt = isset($this->id) ? " id=\"{$this->id}\"" : '';
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$className = ($this->columnCount) ? "field CompositeField {$this->extraClass()} multicolumn" : "field CompositeField {$this->extraClass()}";
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$content = "<div class=\"$className\"$idAtt>\n";
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foreach($fs as $subfield) {
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if($this->columnCount) {
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$className = "column{$this->columnCount}";
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if(!next($fs)) $className .= " lastcolumn";
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$content .= "\n<div class=\"{$className}\">\n" . $subfield->FieldHolder() . "\n</div>\n";
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} else if($subfield){
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$content .= "\n" . $subfield->FieldHolder() . "\n";
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}
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}
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$content .= "</div>\n";
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return $content;
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}
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/**
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* Returns the fields in the restricted field holder inside a DIV.
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*/
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function SmallFieldHolder() {//return $this->FieldHolder();
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$fs = $this->FieldSet();
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$idAtt = isset($this->id) ? " id=\"{$this->id}\"" : '';
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$className = ($this->columnCount) ? "field CompositeField {$this->extraClass()} multicolumn" : "field CompositeField {$this->extraClass()}";
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$content = "<div class=\"$className\"$idAtt>";
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foreach($fs as $subfield) {//echo ' subf'.$subfield->Name();
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if($this->columnCount) {
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$className = "column{$this->columnCount}";
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if(!next($fs)) $className .= " lastcolumn";
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$content .= "<div class=\"{$className}\">" . $subfield->FieldHolder() . "</div>";
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} else if($subfield){
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$content .= $subfield->SmallFieldHolder() . " ";
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}
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}
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$content .= "</div>";
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return $content;
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}
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/**
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* Add all of the non-composite fields contained within this field to the list.
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* Sequentialisation is used when connecting the form to its data source
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*/
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public function collateDataFields(&$list, $saveableOnly = false) {
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foreach($this->children as $field) {
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if(is_object($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 = $field->Name();
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if($name) {
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$formName = (isset($this->form)) ? $this->form->FormName() : '(unknown form)';
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if(isset($list[$name])) user_error("collateDataFields() I noticed that a field called '$name' appears twice in your form: '{$formName}'. One is a '{$field->class}' and the other is a '{$list[$name]->class}'", E_USER_ERROR);
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$list[$name] = $field;
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}
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}
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}
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}
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}
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function setForm($form) {
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foreach($this->children as $f) if(is_object($f)) $f->setForm($form);
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parent::setForm($form);
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}
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function setColumnCount($columnCount) {
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$this->columnCount = $columnCount;
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}
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function isComposite() { return true; }
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function hasData() { return false; }
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public function fieldByName($name) {
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return $this->children->fieldByName($name);
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}
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/**
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* Add a new child field to the end of the set.
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*/
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public function push(FormField $field) {
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$this->children->push($field);
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}
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/**
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* @uses FieldSet->insertBefore()
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*/
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public function insertBefore($field, $insertBefore) {
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$ret = $this->children->insertBefore($field, $insertBefore);
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$this->sequentialSet = null;
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return $ret;
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}
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/**
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* @deprecated 2.3 Use insertBefore
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*/
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public function insertBeforeRecursive($field, $insertBefore) {
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return $this->children->insertBefore($field, $insertBefore);
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}
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public function insertAfter($field, $insertAfter) {
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$ret = $this->children->insertAfter($field, $insertAfter);
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$this->sequentialSet = null;
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return $ret;
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}
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/**
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* Remove a field from this CompositeField by Name.
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* The field could also be inside a CompositeField.
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*
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* @param string $fieldName The name of the field
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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, $dataFieldOnly = false) {
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$this->children->removeByName($fieldName, $dataFieldOnly);
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}
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public function replaceField($fieldName, $newField) {
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return $this->children->replaceField($fieldName, $newField);
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}
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function rootFieldSet() {
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if(is_object($this->containerFieldSet)) return $this->containerFieldSet->rootFieldSet();
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else return $this->children;
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}
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/**
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* Return a readonly version of this field. Keeps the composition but returns readonly
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* versions of all the children
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*/
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public function performReadonlyTransformation() {
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$newChildren = new FieldSet();
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$clone = clone $this;
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foreach($clone->getChildren() as $idx => $child) {
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if(is_object($child)) $child = $child->transform(new ReadonlyTransformation());
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$newChildren->push($child, $idx);
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}
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$clone->children = $newChildren;
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$clone->readonly = true;
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return $clone;
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}
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/**
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* Return a readonly version of this field. Keeps the composition but returns readonly
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* versions of all the children
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*/
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public function performDisabledTransformation($trans) {
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$newChildren = new FieldSet();
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$clone = clone $this;
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if($clone->getChildren()) foreach($clone->getChildren() as $idx => $child) {
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if(is_object($child)) {
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$child = $child->transform($trans);
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}
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$newChildren->push($child, $idx);
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}
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$clone->children = $newChildren;
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$clone->readonly = true;
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return $clone;
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}
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function IsReadonly() {
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return $this->readonly;
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}
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/**
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* Find the numerical position of a field within
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* the children collection. Doesn't work recursively.
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*
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* @param string|FormField
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* @return Position in children collection (first position starts with 0). Returns FALSE if the field can't be found.
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*/
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function fieldPosition($field) {
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if(is_string($field)) $field = $this->fieldByName($field);
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if(!$field) return false;
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$i = 0;
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foreach($this->children as $child) {
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if($child->Name() == $field->Name()) return $i;
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$i++;
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}
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return false;
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}
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/**
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* Transform the named field into a readonly feld.
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*
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* @param string|FormField
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*/
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function makeFieldReadonly($field) {
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$fieldName = ($field instanceof FormField) ? $field->Name() : $field;
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// Iterate on items, looking for the applicable field
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foreach($this->children as $i => $item) {
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if($item->isComposite()) {
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$item->makeFieldReadonly($fieldName);
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} else {
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// Once it's found, use FormField::transform to turn the field into a readonly version of itself.
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if($item->Name() == $fieldName) {
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$this->children->replaceField($fieldName, $item->transform(new ReadonlyTransformation()));
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// Clear an internal cache
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$this->sequentialSet = null;
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// A true results indicates that the field was foudn
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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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function debug() {
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$result = "$this->class ($this->name) <ul>";
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foreach($this->children as $child) {
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$result .= "<li>" . Debug::text($child) . " </li>";
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}
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$result .= "</ul>";
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return $result;
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}
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function validate($validator){
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$valid = true;
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foreach($this->children as $idx => $child){
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$valid = ($child && $child->validate($validator) && $valid);
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}
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return $valid;
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}
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}
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?>
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