silverstripe-framework/Forms/GridField/GridFieldPrintButton.php

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<?php
namespace SilverStripe\Forms\GridField;
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use SilverStripe\Control\HTTPRequest;
use SilverStripe\Core\Convert;
use SilverStripe\ORM\ArrayList;
use SilverStripe\ORM\DataObject;
use SilverStripe\ORM\FieldType\DBDatetime;
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use SilverStripe\ORM\FieldType\DBHTMLText;
use SilverStripe\Security\Member;
use SilverStripe\View\Requirements;
use SilverStripe\View\ArrayData;
/**
* Adds an "Print" button to the bottom or top of a GridField.
*/
class GridFieldPrintButton implements GridField_HTMLProvider, GridField_ActionProvider, GridField_URLHandler {
/**
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* @var array Map of a property name on the printed objects, with values
* being the column title in the CSV file.
*
* Note that titles are only used when {@link $csvHasHeader} is set to TRUE
*/
protected $printColumns;
/**
* @var boolean
*/
protected $printHasHeader = true;
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/**
* Fragment to write the button to.
*
* @var string
*/
protected $targetFragment;
/**
* @param string $targetFragment The HTML fragment to write the button into
* @param array $printColumns The columns to include in the print view
*/
public function __construct($targetFragment = "after", $printColumns = null) {
$this->targetFragment = $targetFragment;
$this->printColumns = $printColumns;
}
/**
* Place the print button in a <p> tag below the field
*
* @param GridField
*
* @return array
*/
public function getHTMLFragments($gridField) {
$button = new GridField_FormAction(
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$gridField,
'print',
_t('TableListField.Print', 'Print'),
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'print',
null
);
$button->setAttribute('data-icon', 'grid_print');
$button->addExtraClass('gridfield-button-print');
$button->addExtraClass('font-icon-print');
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return array(
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$this->targetFragment => '<p class="grid-print-button">' . $button->Field() . '</p>',
);
}
/**
* Print is an action button.
*
* @param GridField
*
* @return array
*/
public function getActions($gridField) {
return array('print');
}
/**
* Handle the print action.
*
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* @param GridField $gridField
* @param string $actionName
* @param array $arguments
* @param array $data
* @return DBHTMLText
*/
public function handleAction(GridField $gridField, $actionName, $arguments, $data) {
if($actionName == 'print') {
return $this->handlePrint($gridField);
}
}
/**
* Print is accessible via the url
*
* @param GridField
* @return array
*/
public function getURLHandlers($gridField) {
return array(
'print' => 'handlePrint',
);
}
/**
* Handle the print, for both the action button and the URL
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*
* @param GridField $gridField
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* @param HTTPRequest $request
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* @return DBHTMLText
*/
public function handlePrint($gridField, $request = null) {
set_time_limit(60);
Requirements::clear();
Requirements::css(ltrim(FRAMEWORK_DIR . '/admin/client/dist/styles/GridField_print.css', '/'));
if($data = $this->generatePrintData($gridField)){
return $data->renderWith(get_class($gridField)."_print");
}
return null;
}
/**
* Return the columns to print
*
* @param GridField
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*
* @return array
*/
protected function getPrintColumnsForGridField(GridField $gridField) {
if($this->printColumns) {
return $this->printColumns;
}
/** @var GridFieldDataColumns $dataCols */
$dataCols = $gridField->getConfig()->getComponentByType('SilverStripe\\Forms\\GridField\\GridFieldDataColumns');
if($dataCols) {
return $dataCols->getDisplayFields($gridField);
}
return DataObject::singleton($gridField->getModelClass())->summaryFields();
}
/**
* Return the title of the printed page
*
* @param GridField
*
* @return array
*/
public function getTitle(GridField $gridField) {
$form = $gridField->getForm();
$currentController = $gridField->getForm()->getController();
$title = '';
if(method_exists($currentController, 'Title')) {
$title = $currentController->Title();
} else {
if ($currentController->Title) {
$title = $currentController->Title;
} elseif ($form->getName()) {
$title = $form->getName();
}
}
if($fieldTitle = $gridField->Title()) {
if($title) {
$title .= " - ";
}
$title .= $fieldTitle;
}
return $title;
}
/**
* Export core.
*
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* @param GridField $gridField
* @return ArrayData
*/
public function generatePrintData(GridField $gridField) {
$printColumns = $this->getPrintColumnsForGridField($gridField);
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$header = null;
if($this->printHasHeader) {
$header = new ArrayList();
foreach($printColumns as $field => $label){
$header->push(new ArrayData(array(
"CellString" => $label,
)));
}
}
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$items = $gridField->getManipulatedList();
$itemRows = new ArrayList();
/** @var DataObject $item */
foreach($items->limit(null) as $item) {
$itemRow = new ArrayList();
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foreach($printColumns as $field => $label) {
$value = $gridField->getDataFieldValue($item, $field);
if($item->escapeTypeForField($field) != 'xml') {
$value = Convert::raw2xml($value);
}
$itemRow->push(new ArrayData(array(
"CellString" => $value,
)));
}
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$itemRows->push(new ArrayData(array(
"ItemRow" => $itemRow
)));
if ($item->hasMethod('destroy')) {
$item->destroy();
}
}
$ret = new ArrayData(array(
"Title" => $this->getTitle($gridField),
"Header" => $header,
"ItemRows" => $itemRows,
"Datetime" => DBDatetime::now(),
"Member" => Member::currentUser(),
));
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return $ret;
}
/**
* @return array
*/
public function getPrintColumns() {
return $this->printColumns;
}
/**
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* @param array $cols
* @return $this
*/
public function setPrintColumns($cols) {
$this->printColumns = $cols;
return $this;
}
/**
* @return boolean
*/
public function getPrintHasHeader() {
return $this->printHasHeader;
}
/**
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* @param bool $bool
* @return $this
*/
public function setPrintHasHeader($bool) {
$this->printHasHeader = $bool;
return $this;
}
}