mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
ddcfcf7bed
Cleanup of framework's use of @package and @subpackage labels and additional of labels for classes missing packages. Moved all GridField related components to the one name. Countless spelling fixes, grammar for other comments. Link ClassName references in file headers.
875 lines
23 KiB
PHP
875 lines
23 KiB
PHP
<?php
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/**
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* Displays a {@link SS_List} in a grid format.
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*
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* GridField is a field that takes an SS_List and displays it in an table with rows
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* and columns. It reminds of the old TableFields but works with SS_List types
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* and only loads the necessary rows from the list.
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*
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* The minimum configuration is to pass in name and title of the field and a
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* SS_List.
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*
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* <code>
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* $gridField = new GridField('ExampleGrid', 'Example grid', new DataList('Page'));
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* </code>
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*
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* @see SS_List
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*
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* @package framework
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* @subpackage fields-gridfield
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*/
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class GridField extends FormField {
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/**
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*
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* @var array
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*/
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private static $allowed_actions = array(
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'index',
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'gridFieldAlterAction'
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);
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/**
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* The datasource
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* @var SS_List
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*/
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protected $list = null;
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/**
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* The classname of the DataObject that the GridField will display. Defaults to the value of $this->list->dataClass
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* @var string
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*/
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protected $modelClassName = '';
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/**
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* the current state of the GridField
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* @var GridState
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*/
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protected $state = null;
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/**
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*
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* @var GridFieldConfig
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*/
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protected $config = null;
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/**
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* The components list
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*
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* @var array
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*/
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protected $components = array();
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/**
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* Internal dispatcher for column handlers.
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* Keys are column names and values are GridField_ColumnProvider objects
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*
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* @var array
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*/
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protected $columnDispatch = null;
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/**
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* Map of callbacks for custom data fields
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*
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* @var array
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*/
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protected $customDataFields = array();
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/**
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* @var string
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*/
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protected $name = '';
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/**
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* Creates a new GridField field
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*
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* @param string $name
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* @param string $title
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* @param SS_List $dataList
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* @param GridFieldConfig $config
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*/
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public function __construct($name, $title = null, SS_List $dataList = null, GridFieldConfig $config = null) {
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parent::__construct($name, $title, null);
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$this->name = $name;
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if($dataList) {
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$this->setList($dataList);
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}
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$this->setConfig($config ?: GridFieldConfig_Base::create());
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$this->config->addComponent(new GridState_Component());
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$this->state = new GridState($this);
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$this->addExtraClass('ss-gridfield');
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}
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public function index($request) {
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return $this->gridFieldAlterAction(array(), $this->getForm(), $request);
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}
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/**
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* Set the modelClass (dataobject) that this field will get it column headers from.
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* If no $displayFields has been set, the displayfields will be fetched from
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* this modelclass $summary_fields
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*
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* @param string $modelClassName
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* @see GridFieldDataColumns::getDisplayFields()
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*/
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public function setModelClass($modelClassName) {
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$this->modelClassName = $modelClassName;
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return $this;
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}
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/**
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* Returns a dataclass that is a DataObject type that this GridField should look like.
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*
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* @throws Exception
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* @return string
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*/
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public function getModelClass() {
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if ($this->modelClassName) return $this->modelClassName;
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if ($this->list && method_exists($this->list, 'dataClass')) {
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$class = $this->list->dataClass();
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if($class) return $class;
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}
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throw new LogicException('GridField doesn\'t have a modelClassName,'
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. ' so it doesn\'t know the columns of this grid.');
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}
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/**
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* Get the GridFieldConfig
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*
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* @return GridFieldConfig
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*/
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public function getConfig() {
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return $this->config;
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}
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/**
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* @param GridFieldConfig $config
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* @return GridField
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*/
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public function setConfig(GridFieldConfig $config) {
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$this->config = $config;
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return $this;
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}
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public function getComponents() {
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return $this->config->getComponents();
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}
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/**
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* Cast a arbitrary value with the help of a castingDefintion
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*
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* @param $value
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* @param $castingDefinition
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* @todo refactor this into GridFieldComponent
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*/
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public function getCastedValue($value, $castingDefinition) {
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if(is_array($castingDefinition)) {
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$castingParams = $castingDefinition;
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array_shift($castingParams);
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$castingDefinition = array_shift($castingDefinition);
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} else {
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$castingParams = array();
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}
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if(strpos($castingDefinition,'->') === false) {
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$castingFieldType = $castingDefinition;
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$castingField = DBField::create_field($castingFieldType, $value);
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$value = call_user_func_array(array($castingField,'XML'),$castingParams);
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} else {
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$fieldTypeParts = explode('->', $castingDefinition);
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$castingFieldType = $fieldTypeParts[0];
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$castingMethod = $fieldTypeParts[1];
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$castingField = DBField::create_field($castingFieldType, $value);
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$value = call_user_func_array(array($castingField,$castingMethod),$castingParams);
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}
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return $value;
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}
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/**
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* Set the datasource
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*
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* @param SS_List $list
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*/
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public function setList(SS_List $list) {
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$this->list = $list;
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return $this;
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}
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/**
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* Get the datasource
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*
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* @return SS_List
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*/
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public function getList() {
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return $this->list;
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}
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/**
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* Get the datasource after applying the {@link GridField_DataManipulator}s to it.
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*
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* @return SS_List
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*/
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public function getManipulatedList() {
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$list = $this->getList();
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foreach($this->getComponents() as $item) {
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if($item instanceof GridField_DataManipulator) {
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$list = $item->getManipulatedData($this, $list);
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}
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}
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return $list;
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}
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/**
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* Get the current GridState_Data or the GridState
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*
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* @param bool $getData - flag for returning the GridState_Data or the GridState
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*
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* @return GridState_data|GridState
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*/
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public function getState($getData = true) {
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if($getData) {
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return $this->state->getData();
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}
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return $this->state;
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}
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/**
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* Returns the whole gridfield rendered with all the attached components
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*
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* @return string
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*/
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public function FieldHolder($properties = array()) {
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Requirements::css(THIRDPARTY_DIR . '/jquery-ui-themes/smoothness/jquery-ui.css');
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Requirements::css(FRAMEWORK_DIR . '/css/GridField.css');
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Requirements::javascript(THIRDPARTY_DIR . '/jquery/jquery.js');
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Requirements::javascript(FRAMEWORK_DIR . '/thirdparty/jquery-ui/jquery-ui.js');
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Requirements::javascript(THIRDPARTY_DIR . '/json-js/json2.js');
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Requirements::javascript(FRAMEWORK_DIR . '/javascript/i18n.js');
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Requirements::add_i18n_javascript(FRAMEWORK_DIR . '/javascript/lang');
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Requirements::javascript(THIRDPARTY_DIR . '/jquery-entwine/dist/jquery.entwine-dist.js');
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Requirements::javascript(FRAMEWORK_DIR . '/javascript/GridField.js');
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// Get columns
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$columns = $this->getColumns();
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// Get data
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$list = $this->getManipulatedList();
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// Render headers, footers, etc
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$content = array(
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"before" => "",
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"after" => "",
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"header" => "",
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"footer" => "",
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);
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foreach($this->getComponents() as $item) {
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if($item instanceof GridField_HTMLProvider) {
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$fragments = $item->getHTMLFragments($this);
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if($fragments) foreach($fragments as $k => $v) {
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$k = strtolower($k);
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if(!isset($content[$k])) $content[$k] = "";
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$content[$k] .= $v . "\n";
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}
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}
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}
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foreach($content as $k => $v) {
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$content[$k] = trim($v);
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}
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// Replace custom fragments and check which fragments are defined
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// Nested dependencies are handled by deferring the rendering of any content item that
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// Circular dependencies are detected by disallowing any item to be deferred more than 5 times
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// It's a fairly crude algorithm but it works
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$fragmentDefined = array('header' => true, 'footer' => true, 'before' => true, 'after' => true);
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reset($content);
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while(list($k,$v) = each($content)) {
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if(preg_match_all('/\$DefineFragment\(([a-z0-9\-_]+)\)/i', $v, $matches)) {
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foreach($matches[1] as $match) {
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$fragmentName = strtolower($match);
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$fragmentDefined[$fragmentName] = true;
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$fragment = isset($content[$fragmentName]) ? $content[$fragmentName] : "";
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// If the fragment still has a fragment definition in it, when we should defer this item until
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// later.
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if(preg_match('/\$DefineFragment\(([a-z0-9\-_]+)\)/i', $fragment, $matches)) {
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// If we've already deferred this fragment, then we have a circular dependency
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if(isset($fragmentDeferred[$k]) && $fragmentDeferred[$k] > 5) {
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throw new LogicException("GridField HTML fragment '$fragmentName' and '$matches[1]' " .
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"appear to have a circular dependency.");
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}
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// Otherwise we can push to the end of the content array
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unset($content[$k]);
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$content[$k] = $v;
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if(!isset($fragmentDeferred[$k])) {
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$fragmentDeferred[$k] = 1;
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} else {
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$fragmentDeferred[$k]++;
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}
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break;
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} else {
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$content[$k] = preg_replace('/\$DefineFragment\(' . $fragmentName . '\)/i', $fragment,
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$content[$k]);
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}
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}
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}
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}
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// Check for any undefined fragments, and if so throw an exception
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// While we're at it, trim whitespace off the elements
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foreach($content as $k => $v) {
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if(empty($fragmentDefined[$k])) {
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throw new LogicException("GridField HTML fragment '$k' was given content,"
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. " but not defined. Perhaps there is a supporting GridField component you need to add?");
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}
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}
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$total = count($list);
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if($total > 0) {
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$rows = array();
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foreach($list as $idx => $record) {
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if(!$record->canView()) {
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continue;
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}
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$rowContent = '';
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foreach($this->getColumns() as $column) {
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$colContent = $this->getColumnContent($record, $column);
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// A return value of null means this columns should be skipped altogether.
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if($colContent === null) continue;
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$colAttributes = $this->getColumnAttributes($record, $column);
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$rowContent .= FormField::create_tag('td', $colAttributes, $colContent);
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}
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$classes = array('ss-gridfield-item');
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if ($idx == 0) $classes[] = 'first';
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if ($idx == $total-1) $classes[] = 'last';
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$classes[] = ($idx % 2) ? 'even' : 'odd';
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$row = FormField::create_tag(
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'tr',
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array(
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"class" => implode(' ', $classes),
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'data-id' => $record->ID,
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// TODO Allow per-row customization similar to GridFieldDataColumns
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'data-class' => $record->ClassName,
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),
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$rowContent
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);
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$rows[] = $row;
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}
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$content['body'] = implode("\n", $rows);
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}
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// Display a message when the grid field is empty
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if(!(isset($content['body']) && $content['body'])) {
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$content['body'] = FormField::create_tag(
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'tr',
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array("class" => 'ss-gridfield-item ss-gridfield-no-items'),
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FormField::create_tag(
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'td',
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array('colspan' => count($columns)),
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_t('GridField.NoItemsFound', 'No items found')
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)
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);
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}
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// Turn into the relevant parts of a table
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$head = $content['header']
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? FormField::create_tag('thead', array(), $content['header'])
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: '';
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$body = $content['body']
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? FormField::create_tag('tbody', array('class' => 'ss-gridfield-items'), $content['body'])
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: '';
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$foot = $content['footer']
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? FormField::create_tag('tfoot', array(), $content['footer'])
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: '';
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$this->addExtraClass('ss-gridfield field');
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$attrs = array_diff_key(
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$this->getAttributes(),
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array('value' => false, 'type' => false, 'name' => false)
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);
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$attrs['data-name'] = $this->getName();
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$tableAttrs = array(
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'id' => isset($this->id) ? $this->id : null,
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'class' => 'ss-gridfield-table',
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'cellpadding' => '0',
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'cellspacing' => '0'
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);
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if($this->getDescription()) {
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$content['after'] .= FormField::create_tag(
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'span',
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array('class' => 'description'),
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$this->getDescription()
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);
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}
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return
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FormField::create_tag('fieldset', $attrs,
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$content['before'] .
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FormField::create_tag('table', $tableAttrs, $head."\n".$foot."\n".$body) .
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$content['after']
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);
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}
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public function Field($properties = array()) {
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return $this->FieldHolder($properties);
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}
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public function getAttributes() {
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return array_merge(parent::getAttributes(), array('data-url' => $this->Link()));
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}
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/**
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* Get the columns of this GridField, they are provided by attached GridField_ColumnProvider
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*
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* @return array
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*/
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public function getColumns() {
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// Get column list
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$columns = array();
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foreach($this->getComponents() as $item) {
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if($item instanceof GridField_ColumnProvider) {
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$item->augmentColumns($this, $columns);
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}
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}
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return $columns;
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}
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/**
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* Get the value from a column
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*
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* @param DataObject $record
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* @param string $column
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* @return string
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* @throws InvalidArgumentException
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*/
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public function getColumnContent($record, $column) {
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// Build the column dispatch
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if(!$this->columnDispatch) {
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$this->buildColumnDispatch();
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}
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if(!empty($this->columnDispatch[$column])) {
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$content = "";
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foreach($this->columnDispatch[$column] as $handler) {
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$content .= $handler->getColumnContent($this, $record, $column);
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}
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return $content;
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} else {
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throw new InvalidArgumentException("Bad column '$column'");
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}
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}
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/**
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* Add additional calculated data fields to be used on this GridField
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*
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* @param array $fields a map of fieldname to callback. The callback will
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* be passed the record as an argument.
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*/
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public function addDataFields($fields) {
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if($this->customDataFields) {
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$this->customDataFields = array_merge($this->customDataFields, $fields);
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} else {
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$this->customDataFields = $fields;
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}
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}
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/**
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* Get the value of a named field on the given record.
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* Use of this method ensures that any special rules around the data for this gridfield are followed.
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*/
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public function getDataFieldValue($record, $fieldName) {
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// Custom callbacks
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if(isset($this->customDataFields[$fieldName])) {
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$callback = $this->customDataFields[$fieldName];
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return $callback($record);
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}
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// Default implementation
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if($record->hasMethod('relField')) {
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return $record->relField($fieldName);
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} elseif($record->hasMethod($fieldName)) {
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return $record->$fieldName();
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} else {
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return $record->$fieldName;
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}
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}
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/**
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* Get extra columns attributes used as HTML attributes
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*
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* @param DataObject $record
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* @param string $column
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* @return array
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* @throws LogicException
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* @throws InvalidArgumentException
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*/
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public function getColumnAttributes($record, $column) {
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// Build the column dispatch
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if(!$this->columnDispatch) {
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$this->buildColumnDispatch();
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}
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if(!empty($this->columnDispatch[$column])) {
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$attrs = array();
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foreach($this->columnDispatch[$column] as $handler) {
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$column_attrs = $handler->getColumnAttributes($this, $record, $column);
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if(is_array($column_attrs)) {
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$attrs = array_merge($attrs, $column_attrs);
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} elseif($column_attrs) {
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$methodSignature = get_class($handler) . "::getColumnAttributes()";
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throw new LogicException("Non-array response from $methodSignature.");
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}
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}
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return $attrs;
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} else {
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throw new InvalidArgumentException("Bad column '$column'");
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}
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}
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/**
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* Get metadata for a column, example array('Title'=>'Email address')
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*
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* @param string $column
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* @return array
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* @throws LogicException
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* @throws InvalidArgumentException
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*/
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public function getColumnMetadata($column) {
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// Build the column dispatch
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if(!$this->columnDispatch) {
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$this->buildColumnDispatch();
|
|
}
|
|
|
|
if(!empty($this->columnDispatch[$column])) {
|
|
$metadata = array();
|
|
|
|
foreach($this->columnDispatch[$column] as $handler) {
|
|
$column_metadata = $handler->getColumnMetadata($this, $column);
|
|
|
|
if(is_array($column_metadata)) {
|
|
$metadata = array_merge($metadata, $column_metadata);
|
|
} else {
|
|
$methodSignature = get_class($handler) . "::getColumnMetadata()";
|
|
throw new LogicException("Non-array response from $methodSignature.");
|
|
}
|
|
|
|
}
|
|
|
|
return $metadata;
|
|
}
|
|
throw new InvalidArgumentException("Bad column '$column'");
|
|
}
|
|
|
|
/**
|
|
* Return how many columns the grid will have
|
|
*
|
|
* @return int
|
|
*/
|
|
public function getColumnCount() {
|
|
// Build the column dispatch
|
|
if(!$this->columnDispatch) $this->buildColumnDispatch();
|
|
return count($this->columnDispatch);
|
|
}
|
|
|
|
/**
|
|
* Build an columnDispatch that maps a GridField_ColumnProvider to a column
|
|
* for reference later
|
|
*
|
|
*/
|
|
protected function buildColumnDispatch() {
|
|
$this->columnDispatch = array();
|
|
|
|
foreach($this->getComponents() as $item) {
|
|
if($item instanceof GridField_ColumnProvider) {
|
|
$columns = $item->getColumnsHandled($this);
|
|
|
|
foreach($columns as $column) {
|
|
$this->columnDispatch[$column][] = $item;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This is the action that gets executed when a GridField_AlterAction gets clicked.
|
|
*
|
|
* @param array $data
|
|
* @return string
|
|
*/
|
|
public function gridFieldAlterAction($data, $form, SS_HTTPRequest $request) {
|
|
$html = '';
|
|
$data = $request->requestVars();
|
|
$fieldData = @$data[$this->getName()];
|
|
|
|
// Update state from client
|
|
$state = $this->getState(false);
|
|
|
|
if(isset($fieldData['GridState'])) {
|
|
$state->setValue($fieldData['GridState']);
|
|
}
|
|
|
|
// Try to execute alter action
|
|
foreach($data as $k => $v) {
|
|
if(preg_match('/^action_gridFieldAlterAction\?StateID=(.*)/', $k, $matches)) {
|
|
$id = $matches[1];
|
|
$stateChange = Session::get($id);
|
|
|
|
$actionName = $stateChange['actionName'];
|
|
|
|
$args = isset($stateChange['args']) ? $stateChange['args'] : array();
|
|
$html = $this->handleAlterAction($actionName, $args, $data);
|
|
// A field can optionally return its own HTML
|
|
if($html) return $html;
|
|
}
|
|
}
|
|
|
|
switch($request->getHeader('X-Pjax')) {
|
|
case 'CurrentField':
|
|
return $this->FieldHolder();
|
|
break;
|
|
|
|
case 'CurrentForm':
|
|
return $form->forTemplate();
|
|
break;
|
|
|
|
default:
|
|
return $form->forTemplate();
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Pass an action on the first GridField_ActionProvider that matches the $actionName
|
|
*
|
|
* @param string $actionName
|
|
* @param mixed $args
|
|
* @param arrray $data - send data from a form
|
|
* @return type
|
|
* @throws InvalidArgumentException
|
|
*/
|
|
public function handleAlterAction($actionName, $args, $data) {
|
|
$actionName = strtolower($actionName);
|
|
foreach($this->getComponents() as $component) {
|
|
if(!($component instanceof GridField_ActionProvider)) {
|
|
continue;
|
|
}
|
|
|
|
if(in_array($actionName, array_map('strtolower', (array)$component->getActions($this)))) {
|
|
return $component->handleAction($this, $actionName, $args, $data);
|
|
}
|
|
}
|
|
throw new InvalidArgumentException("Can't handle action '$actionName'");
|
|
}
|
|
|
|
/**
|
|
* Custom request handler that will check component handlers before proceeding to the default implementation.
|
|
*
|
|
* @todo There is too much code copied from RequestHandler here.
|
|
*/
|
|
public function handleRequest(SS_HTTPRequest $request, DataModel $model) {
|
|
if($this->brokenOnConstruct) {
|
|
user_error("parent::__construct() needs to be called on {$handlerClass}::__construct()", E_USER_WARNING);
|
|
}
|
|
|
|
$this->request = $request;
|
|
$this->setDataModel($model);
|
|
|
|
$fieldData = $this->request->requestVar($this->getName());
|
|
if($fieldData && isset($fieldData['GridState'])) $this->getState(false)->setValue($fieldData['GridState']);
|
|
|
|
foreach($this->getComponents() as $component) {
|
|
if(!($component instanceof GridField_URLHandler)) {
|
|
continue;
|
|
}
|
|
|
|
$urlHandlers = $component->getURLHandlers($this);
|
|
|
|
if($urlHandlers) foreach($urlHandlers as $rule => $action) {
|
|
if($params = $request->match($rule, true)) {
|
|
// Actions can reference URL parameters, eg, '$Action/$ID/$OtherID' => '$Action',
|
|
if($action[0] == '$') $action = $params[substr($action,1)];
|
|
if(!method_exists($component, 'checkAccessAction') || $component->checkAccessAction($action)) {
|
|
if(!$action) {
|
|
$action = "index";
|
|
} else if(!is_string($action)) {
|
|
throw new LogicException("Non-string method name: " . var_export($action, true));
|
|
}
|
|
|
|
try {
|
|
$result = $component->$action($this, $request);
|
|
} catch(SS_HTTPResponse_Exception $responseException) {
|
|
$result = $responseException->getResponse();
|
|
}
|
|
|
|
if($result instanceof SS_HTTPResponse && $result->isError()) {
|
|
return $result;
|
|
}
|
|
|
|
if($this !== $result && !$request->isEmptyPattern($rule) && is_object($result)
|
|
&& $result instanceof RequestHandler) {
|
|
|
|
$returnValue = $result->handleRequest($request, $model);
|
|
|
|
if(is_array($returnValue)) {
|
|
throw new LogicException("GridField_URLHandler handlers can't return arrays");
|
|
}
|
|
|
|
return $returnValue;
|
|
|
|
// If we return some other data, and all the URL is parsed, then return that
|
|
} else if($request->allParsed()) {
|
|
return $result;
|
|
|
|
// But if we have more content on the URL and we don't know what to do with it, return an error
|
|
} else {
|
|
return $this->httpError(404,
|
|
"I can't handle sub-URLs of a " . get_class($result) . " object.");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return parent::handleRequest($request, $model);
|
|
}
|
|
|
|
public function saveInto(DataObjectInterface $record) {
|
|
foreach($this->getComponents() as $component) {
|
|
if($component instanceof GridField_SaveHandler) {
|
|
$component->handleSave($this, $record);
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
* This class is the base class when you want to have an action that alters
|
|
* the state of the {@link GridField}, rendered as a button element.
|
|
*
|
|
* @package framework
|
|
* @subpackage fields-gridfield
|
|
*/
|
|
class GridField_FormAction extends FormAction {
|
|
|
|
/**
|
|
* @var GridField
|
|
*/
|
|
protected $gridField;
|
|
|
|
/**
|
|
* @var array
|
|
*/
|
|
protected $stateValues;
|
|
|
|
/**
|
|
* @var array
|
|
*/
|
|
protected $args = array();
|
|
|
|
/**
|
|
* @var string
|
|
*/
|
|
protected $actionName;
|
|
|
|
/**
|
|
* @var boolean
|
|
*/
|
|
public $useButtonTag = true;
|
|
|
|
/**
|
|
* @param GridField $gridField
|
|
* @param type $name
|
|
* @param type $label
|
|
* @param type $actionName
|
|
* @param type $args
|
|
*/
|
|
public function __construct(GridField $gridField, $name, $title, $actionName, $args) {
|
|
$this->gridField = $gridField;
|
|
$this->actionName = $actionName;
|
|
$this->args = $args;
|
|
|
|
parent::__construct($name, $title);
|
|
}
|
|
|
|
/**
|
|
* urlencode encodes less characters in percent form than we need - we
|
|
* need everything that isn't a \w.
|
|
*
|
|
* @param string $val
|
|
*/
|
|
public function nameEncode($val) {
|
|
return preg_replace_callback('/[^\w]/', array($this, '_nameEncode'), $val);
|
|
}
|
|
|
|
/**
|
|
* The callback for nameEncode
|
|
*
|
|
* @param string $val
|
|
*/
|
|
public function _nameEncode($match) {
|
|
return '%'.dechex(ord($match[0]));
|
|
}
|
|
|
|
/**
|
|
* @return array
|
|
*/
|
|
public function getAttributes() {
|
|
// Store state in session, and pass ID to client side.
|
|
$state = array(
|
|
'grid' => $this->getNameFromParent(),
|
|
'actionName' => $this->actionName,
|
|
'args' => $this->args,
|
|
);
|
|
|
|
$id = preg_replace('/[^\w]+/', '_', uniqid('', true));
|
|
Session::set($id, $state);
|
|
$actionData['StateID'] = $id;
|
|
|
|
return array_merge(
|
|
parent::getAttributes(),
|
|
array(
|
|
// Note: This field needs to be less than 65 chars, otherwise Suhosin security patch
|
|
// will strip it from the requests
|
|
'name' => 'action_gridFieldAlterAction'. '?' . http_build_query($actionData),
|
|
'data-url' => $this->gridField->Link(),
|
|
)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Calculate the name of the gridfield relative to the Form
|
|
*
|
|
* @param GridField $base
|
|
* @return string
|
|
*/
|
|
protected function getNameFromParent() {
|
|
$base = $this->gridField;
|
|
$name = array();
|
|
|
|
do {
|
|
array_unshift($name, $base->getName());
|
|
$base = $base->getForm();
|
|
} while ($base && !($base instanceof Form));
|
|
|
|
return implode('.', $name);
|
|
}
|
|
}
|