mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
719 lines
21 KiB
PHP
719 lines
21 KiB
PHP
<?php
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/**
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* TableField behaves in the same manner as TableListField, however allows the addition of
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* fields and editing of attributes specified, and filtering results.
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*
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* Caution: If you insert DropdownFields in the fieldTypes-array, make sure they have an empty first option.
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* Otherwise the saving can't determine if a new row should really be saved.
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*
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* Caution: TableField relies on {@FormResponse} to reload the field after it is saved.
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* A TableField-instance should never be saved twice without reloading, because otherwise it
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* can't determine if a field is new (=create) or existing (=update), and will produce duplicates.
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*
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* @todo We should refactor this to support a single FieldList instead of evaluated Strings for building FormFields
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*
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* @package forms
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* @subpackage fields-relational
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*/
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class TableField extends TableListField {
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protected $fieldList;
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/**
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* A "Field = Value" filter can be specified by setting $this->filterField and $this->filterValue. This has the advantage of auto-populating
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* new records
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*/
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protected $filterField = null;
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/**
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* A "Field = Value" filter can be specified by setting $this->filterField and $this->filterValue. This has the advantage of auto-populating
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* new records
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*/
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protected $filterValue = null;
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/**
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* @var $fieldTypes FieldList
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* Caution: Use {@setExtraData()} instead of manually adding HiddenFields if you want to
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* preset relations or other default data.
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*/
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protected $fieldTypes;
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/**
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* @var $template string Template-Overrides
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*/
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protected $template = "TableField";
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/**
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* @var $extraData array Any extra data that need to be included, e.g. to retain
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* has-many relations. Format: array('FieldName' => 'Value')
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*/
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protected $extraData;
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protected $tempForm;
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/**
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* Influence output without having to subclass the template.
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*/
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protected $permissions = array(
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"edit",
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"delete",
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"add",
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//"export",
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);
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public $transformationConditions = array();
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/**
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* @var $requiredFields array Required fields as a numerical array.
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* Please use an instance of Validator on the including
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* form.
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*/
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protected $requiredFields = null;
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/**
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* Shows a row of empty fields for adding a new record
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* (turned on by default).
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* Please use {@link TableField::$permissions} to control
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* if the "add"-functionality incl. button is shown at all.
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*
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* @param boolean $showAddRow
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*/
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public $showAddRow = true;
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/**
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* @param $name string The fieldname
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* @param $sourceClass string The source class of this field
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* @param $fieldList array An array of field headings of Fieldname => Heading Text (eg. heading1)
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* @param $fieldTypes array An array of field types of fieldname => fieldType (eg. formfield). Do not use for extra data/hiddenfields.
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* @param $filterField string The field to filter by. Give the filter value in $sourceFilter. The value will automatically be set on new records.
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* @param $sourceFilter string If $filterField has a value, then this is the value to filter by. Otherwise, it is a SQL filter expression.
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* @param $editExisting boolean (Note: Has to stay on this position for legacy reasons)
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* @param $sourceSort string
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* @param $sourceJoin string
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*/
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function __construct($name, $sourceClass, $fieldList = null, $fieldTypes, $filterField = null,
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$sourceFilter = null, $editExisting = true, $sourceSort = null, $sourceJoin = null) {
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$this->fieldTypes = $fieldTypes;
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$this->filterField = $filterField;
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$this->editExisting = $editExisting;
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// If we specify filterField, then an implicit source filter of "filterField = sourceFilter" is used.
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if($filterField) {
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$this->filterValue = $sourceFilter;
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$sourceFilter = "\"$filterField\" = '" . Convert::raw2sql($sourceFilter) . "'";
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}
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parent::__construct($name, $sourceClass, $fieldList, $sourceFilter, $sourceSort, $sourceJoin);
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}
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/**
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* Displays the headings on the template
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*
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* @return SS_List
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*/
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function Headings() {
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$i=0;
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foreach($this->fieldList as $fieldName => $fieldTitle) {
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$extraClass = "col".$i;
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$class = $this->fieldTypes[$fieldName];
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if(is_object($class)) $class = "";
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$class = $class." ".$extraClass;
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$headings[] = new ArrayData(array("Name" => $fieldName, "Title" => $fieldTitle, "Class" => $class));
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$i++;
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}
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return new ArrayList($headings);
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}
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/**
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* Calculates the number of columns needed for colspans
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* used in template
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*
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* @return int
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*/
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function ItemCount() {
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return count($this->fieldList);
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}
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/**
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* Displays the items from {@link sourceItems()} using the encapsulation object.
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* If the field value has been set as an array (e.g. after a failed validation),
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* it generates the rows from array data instead.
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* Used in the formfield template to iterate over each row.
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*
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* @return SS_List Collection of {@link TableField_Item}
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*/
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function Items() {
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// holds TableField_Item instances
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$items = new ArrayList();
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$sourceItems = $this->sourceItems();
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// either load all rows from the field value,
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// (e.g. when validation failed), or from sourceItems()
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if($this->value) {
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if(!$sourceItems) $sourceItems = new ArrayList();
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// get an array keyed by rows, rather than values
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$rows = $this->sortData(ArrayLib::invert($this->value));
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// ignore all rows which are already saved
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if(isset($rows['new'])) {
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if($sourceItems instanceof DataList) {
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$sourceItems = new ArrayList($sourceItems->toArray());
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}
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$newRows = $this->sortData($rows['new']);
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// iterate over each value (not each row)
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$i = 0;
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foreach($newRows as $idx => $newRow){
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// set a pseudo-ID
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$newRow['ID'] = "new";
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// unset any extradata
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foreach($newRow as $k => $v){
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if($this->extraData && array_key_exists($k, $this->extraData)){
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unset($newRow[$k]);
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}
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}
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// generate a temporary DataObject container (not saved in the database)
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$sourceClass = $this->sourceClass();
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$sourceItems->add(new $sourceClass($newRow));
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$i++;
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}
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}
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}
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// generate a new TableField_Item instance from each collected item
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if($sourceItems) foreach($sourceItems as $sourceItem) {
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$items->push($this->generateTableFieldItem($sourceItem));
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}
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// add an empty TableField_Item for a single "add row"
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if($this->showAddRow && $this->Can('add')) {
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$items->push(new TableField_Item(null, $this, null, $this->fieldTypes, true));
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}
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return $items;
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}
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/**
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* Generates a new {@link TableField} instance
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* by loading a FieldList for this row into a temporary form.
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*
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* @param DataObject $dataObj
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* @return TableField_Item
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*/
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protected function generateTableFieldItem($dataObj) {
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// Load the data in to a temporary form (for correct field types)
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$form = new Form(
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$this,
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null,
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$this->FieldSetForRow(),
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new FieldList()
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);
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$form->loadDataFrom($dataObj);
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// Add the item to our new ArrayList, with a wrapper class.
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return new TableField_Item($dataObj, $this, $form, $this->fieldTypes);
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}
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/**
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* @return array
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*/
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function FieldList() {
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return $this->fieldList;
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}
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/**
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* Saves the Dataobjects contained in the field
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*/
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function saveInto(DataObject $record) {
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// CMS sometimes tries to set the value to one.
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if(is_array($this->value)){
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$newFields = array();
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// Sort into proper array
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$value = ArrayLib::invert($this->value);
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$dataObjects = $this->sortData($value, $record->ID);
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// New fields are nested in their own sub-array, and need to be sorted separately
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if(isset($dataObjects['new']) && $dataObjects['new']) {
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$newFields = $this->sortData($dataObjects['new'], $record->ID);
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}
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// Update existing fields
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// @todo Should this be in an else{} statement?
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$savedObjIds = $this->saveData($dataObjects, $this->editExisting);
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// Save newly added record
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if($savedObjIds || $newFields) {
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$savedObjIds = $this->saveData($newFields,false);
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}
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// Add the new records to the DataList
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if($savedObjIds) foreach($savedObjIds as $id => $status) {
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$this->getDataList()->add($id);
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}
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// Update the internal source items cache
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$this->value = null;
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$items = $this->sourceItems();
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// FormResponse::update_dom_id($this->id(), $this->FieldHolder());
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}
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}
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/**
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* Get all {@link FormField} instances necessary for a single row,
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* respecting the casting set in {@link $fieldTypes}.
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* Doesn't populate with any data. Optionally performs a readonly
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* transformation if {@link $IsReadonly} is set, or the current user
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* doesn't have edit permissions.
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*
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* @return FieldList
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*/
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function FieldSetForRow() {
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$fieldset = new FieldList();
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if($this->fieldTypes){
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foreach($this->fieldTypes as $key => $fieldType) {
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if(isset($fieldType->class) && is_subclass_of($fieldType, 'FormField')) {
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// using clone, otherwise we would just add stuff to the same field-instance
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$field = clone $fieldType;
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} elseif(strpos($fieldType, '(') === false) {
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$field = new $fieldType($key);
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} else {
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$fieldName = $key;
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$fieldTitle = "";
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$field = eval("return new $fieldType;");
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}
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if($this->IsReadOnly || !$this->Can('edit')) {
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$field = $field->performReadonlyTransformation();
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}
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$fieldset->push($field);
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}
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}else{
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USER_ERROR("TableField::FieldSetForRow() - Fieldtypes were not specified",E_USER_WARNING);
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}
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return $fieldset;
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}
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function performReadonlyTransformation() {
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$clone = clone $this;
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$clone->permissions = array('show');
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$clone->setReadonly(true);
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return $clone;
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}
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function performDisabledTransformation() {
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$clone = clone $this;
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$clone->setPermissions(array('show'));
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$clone->setDisabled(true);
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return $clone;
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}
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/**
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* Needed for Form->callfieldmethod.
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*/
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public function getField($fieldName, $combinedFieldName = null) {
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$fieldSet = $this->FieldSetForRow();
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$field = $fieldSet->dataFieldByName($fieldName);
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if(!$field) {
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return false;
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}
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if($combinedFieldName) {
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$field->Name = $combinedFieldName;
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}
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return $field;
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}
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/**
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* Called on save, it creates the appropriate objects and writes them
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* to the database.
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*
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* @param SS_List $dataObjects
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* @param boolean $existingValues If set to TRUE, it tries to find existing objects
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* based on the database IDs passed as array keys in $dataObjects parameter.
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* If set to FALSE, it will always create new object (default: TRUE)
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* @return array Array of saved object IDs in the key, and the status ("Updated") in the value
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*/
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function saveData($dataObjects, $existingValues = true) {
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if(!$dataObjects) return false;
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$savedObjIds = array();
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$fieldset = $this->FieldSetForRow();
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// add hiddenfields
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if($this->extraData) {
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foreach($this->extraData as $fieldName => $fieldValue) {
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$fieldset->push(new HiddenField($fieldName));
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}
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}
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$form = new Form($this, null, $fieldset, new FieldList());
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foreach ($dataObjects as $objectid => $fieldValues) {
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// 'new' counts as an empty column, don't save it
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if($objectid === "new") continue;
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// extra data was creating fields, but
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if($this->extraData) {
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$fieldValues = array_merge( $this->extraData, $fieldValues );
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}
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// either look for an existing object, or create a new one
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if($existingValues) {
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$obj = DataObject::get_by_id($this->sourceClass(), $objectid);
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} else {
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$sourceClass = $this->sourceClass();
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$obj = new $sourceClass();
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}
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// Legacy: Use the filter as a predefined relationship-ID
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if($this->filterField && $this->filterValue) {
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$filterField = $this->filterField;
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$obj->$filterField = $this->filterValue;
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}
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// Determine if there is changed data for saving
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$dataFields = array();
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foreach($fieldValues as $type => $value) {
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// if the field is an actual datafield (not a preset hiddenfield)
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if(is_array($this->extraData)) {
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if(!in_array($type, array_keys($this->extraData))) {
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$dataFields[$type] = $value;
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}
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// all fields are real
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} else {
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$dataFields[$type] = $value;
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}
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}
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$dataValues = ArrayLib::array_values_recursive($dataFields);
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// determine if any of the fields have a value (loose checking with empty())
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$hasData = false;
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foreach($dataValues as $value) {
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if(!empty($value)) $hasData = true;
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}
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if($hasData) {
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$form->loadDataFrom($fieldValues, true);
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$form->saveInto($obj);
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$objectid = $obj->write();
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$savedObjIds[$objectid] = "Updated";
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}
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}
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return $savedObjIds;
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}
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/**
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* Organises the data in the appropriate manner for saving
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*
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* @param array $data
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* @param int $recordID
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* @return array Collection of maps suitable to construct DataObjects
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*/
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function sortData($data, $recordID = null) {
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if(!$data) return false;
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$sortedData = array();
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foreach($data as $field => $rowData) {
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$i = 0;
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if(!is_array($rowData)) continue;
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foreach($rowData as $id => $value) {
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if($value == '$recordID') $value = $recordID;
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if($value) $sortedData[$id][$field] = $value;
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$i++;
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}
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// TODO ADD stuff for removing rows with incomplete data
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}
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return $sortedData;
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}
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/**
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* @param $extraData array
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*/
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function setExtraData($extraData) {
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$this->extraData = $extraData;
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return $this;
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}
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/**
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* @return array
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*/
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function getExtraData() {
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return $this->extraData;
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}
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/**
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* Sets the template to be rendered with
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*/
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function FieldHolder() {
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Requirements::javascript(SAPPHIRE_DIR . '/thirdparty/jquery/jquery.js');
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Requirements::javascript(THIRDPARTY_DIR . "/prototype/prototype.js");
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Requirements::javascript(SAPPHIRE_DIR . '/thirdparty/behaviour/behaviour.js');
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Requirements::add_i18n_javascript(SAPPHIRE_DIR . '/javascript/lang');
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Requirements::javascript(SAPPHIRE_DIR . '/javascript/TableListField.js');
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Requirements::javascript(SAPPHIRE_DIR . '/javascript/TableField.js');
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Requirements::css(SAPPHIRE_DIR . '/css/TableListField.css');
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return $this->renderWith($this->template);
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}
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function setTransformationConditions($conditions) {
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$this->transformationConditions = $conditions;
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return $this;
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}
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function php($data) {
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$valid = true;
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if($data['methodName'] != 'delete') {
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$items = $this->Items();
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if($items) foreach($items as $item) {
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foreach($item->Fields() as $field) {
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$valid = $field->validate($this) && $valid;
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}
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}
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return $valid;
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} else {
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return $valid;
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}
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}
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function validate($validator) {
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$errorMessage = '';
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$valid = true;
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// @todo should only contain new elements
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$items = $this->Items();
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if($items) foreach($items as $item) {
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foreach($item->Fields() as $field) {
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$valid = $field->validate($validator) && $valid;
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}
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}
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//debug::show($this->form->Message());
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if($this->requiredFields&&$sourceItemsNew&&$sourceItemsNew->count()) {
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foreach ($this->requiredFields as $field) {
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foreach($sourceItemsNew as $item){
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$cellName = $this->getName().'['.$item->ID.']['.$field.']';
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$cName = $this->getName().'[new]['.$field.'][]';
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if($fieldObj = $fields->dataFieldByName($cellName)) {
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if(!trim($fieldObj->Value())){
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$title = $fieldObj->Title();
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$errorMessage .= sprintf(
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_t('TableField.ISREQUIRED', "In %s '%s' is required."),
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$this->name,
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$title
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);
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$errorMessage .= "<br />";
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}
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}
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}
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}
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}
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if($errorMessage){
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$messageType .= "validation";
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$message .= "<br />".$errorMessage;
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$validator->validationError($this->name, $message, $messageType);
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}
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return $valid;
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}
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function setRequiredFields($fields) {
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$this->requiredFields = $fields;
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return $this;
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}
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}
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/**
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* Single record in a TableField.
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* @package forms
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* @subpackage fields-relational
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* @see TableField
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*/
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class TableField_Item extends TableListField_Item {
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/**
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* @var FieldList $fields
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*/
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protected $fields;
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protected $data;
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protected $fieldTypes;
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protected $isAddRow;
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protected $extraData;
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/**
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* Each row contains a dataobject with any number of attributes
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* @param $ID int The ID of the record
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* @param $form Form A Form object containing all of the fields for this item. The data should be loaded in
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* @param $fieldTypes array An array of name => fieldtype for use when creating a new field
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* @param $parent TableListField The parent table for quick reference of names, and id's for storing values.
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*/
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function __construct($item = null, $parent, $form, $fieldTypes, $isAddRow = false) {
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$this->data = $form;
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$this->fieldTypes = $fieldTypes;
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$this->isAddRow = $isAddRow;
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$this->item = $item;
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parent::__construct(($this->item) ? $this->item : new DataObject(), $parent);
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$this->fields = $this->createFields();
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}
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/**
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* Represents each cell of the table with an attribute.
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*
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* @return FieldList
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*/
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function createFields() {
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// Existing record
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if($this->item && $this->data) {
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$form = $this->data;
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$this->fieldset = $form->Fields();
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$this->fieldset->removeByName('SecurityID');
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if($this->fieldset) {
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$i=0;
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foreach($this->fieldset as $field) {
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$origFieldName = $field->getName();
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// set unique fieldname with id
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$combinedFieldName = $this->parent->getName() . "[" . $this->ID() . "][" . $origFieldName . "]";
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// ensure to set field to nested array notation
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// if its an unsaved row, or the "add row" which is present by default
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if($this->isAddRow || $this->ID() == 'new') $combinedFieldName .= '[]';
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// get value
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if(strpos($origFieldName,'.') === false) {
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$value = $field->dataValue();
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} else {
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// this supports the syntax fieldName = Relation.RelatedField
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$fieldNameParts = explode('.', $origFieldName) ;
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$tmpItem = $this->item;
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for($j=0;$j<sizeof($fieldNameParts);$j++) {
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$relationMethod = $fieldNameParts[$j];
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$idField = $relationMethod . 'ID';
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if($j == sizeof($fieldNameParts)-1) {
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$value = $tmpItem->$relationMethod;
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} else {
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$tmpItem = $tmpItem->$relationMethod();
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}
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}
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}
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$field->Name = $combinedFieldName;
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$field->setValue($field->dataValue());
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$field->addExtraClass('col'.$i);
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$field->setForm($this->data);
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// transformation
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if(isset($this->parent->transformationConditions[$origFieldName])) {
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$transformation = $this->parent->transformationConditions[$origFieldName]['transformation'];
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$rule = str_replace("\$","\$this->item->", $this->parent->transformationConditions[$origFieldName]['rule']);
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$ruleApplies = null;
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eval('$ruleApplies = ('.$rule.');');
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if($ruleApplies) {
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$field = $field->$transformation();
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}
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}
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// formatting
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$item = $this->item;
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$value = $field->Value();
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if(array_key_exists($origFieldName, $this->parent->fieldFormatting)) {
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$format = str_replace('$value', "__VAL__", $this->parent->fieldFormatting[$origFieldName]);
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$format = preg_replace('/\$([A-Za-z0-9-_]+)/','$item->$1', $format);
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$format = str_replace('__VAL__', '$value', $format);
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eval('$value = "' . $format . '";');
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$field->dontEscape = true;
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$field->setValue($value);
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}
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$this->fields[] = $field;
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$i++;
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}
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}
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// New record
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} else {
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$list = $this->parent->FieldList();
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$i=0;
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foreach($list as $fieldName => $fieldTitle) {
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if(strpos($fieldName, ".")) {
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$shortFieldName = substr($fieldName, strpos($fieldName, ".")+1, strlen($fieldName));
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} else {
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$shortFieldName = $fieldName;
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}
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$combinedFieldName = $this->parent->getName() . "[new][" . $shortFieldName . "][]";
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$fieldType = $this->fieldTypes[$fieldName];
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if(isset($fieldType->class) && is_subclass_of($fieldType, 'FormField')) {
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$field = clone $fieldType; // we can't use the same instance all over, as we change names
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$field->Name = $combinedFieldName;
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} elseif(strpos($fieldType, '(') === false) {
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//echo ("<li>Type: ".$fieldType." fieldName: ". $filedName. " Title: ".$fieldTitle."</li>");
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$field = new $fieldType($combinedFieldName,$fieldTitle);
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} else {
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$field = eval("return new " . $fieldType . ";");
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}
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$field->addExtraClass('col'.$i);
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$this->fields[] = $field;
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$i++;
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}
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}
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return new FieldList($this->fields);
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}
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function Fields() {
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return $this->fields;
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}
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function ExtraData() {
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$content = "";
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$id = ($this->item->ID) ? $this->item->ID : "new";
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if($this->parent->getExtraData()) {
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foreach($this->parent->getExtraData() as $fieldName=>$fieldValue) {
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$name = $this->parent->getName() . "[" . $id . "][" . $fieldName . "]";
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if($this->isAddRow) $name .= '[]';
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$field = new HiddenField($name, null, $fieldValue);
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$content .= $field->FieldHolder() . "\n";
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}
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}
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return $content;
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}
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/**
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* Get the flag isAddRow of this item,
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* to indicate if the item is that blank last row in the table which is not in the database
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*
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* @return boolean
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*/
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function IsAddRow(){
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return $this->isAddRow;
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}
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}
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