我有一个名为EventPage
的页面,我通过模型管理员管理。还使用目录管理器:https://github.com/littlegiant/silverstripe-catalogmanager
问题是我需要能够导出所有过期事件(以及所有字段)。
我在'EndDate' => 'Date',
上有一个EventPage
字段。
所以我想只在我的CSV导出中显示EventPages,其中EndDate是GreaterThanOrEqual到今天的日期,例如Expired。
以下内容会生成一个CSV导出按钮,但目前它正在导出所有字段,因为我想过滤它,所以我们只显示过期的事件。
我该怎么做?
<?php
class EventAdmin extends CatalogPageAdmin {
public $showImportForm = false;
private static $managed_models = array(
'EventPage',
'EventCategory',
'EventSubmission',
);
private static $url_segment = 'events';
private static $menu_title = 'Events';
public function getEditForm($id = null, $fields = null) {
$form = parent::getEditForm($id, $fields);
$gridFieldName = 'EventPage';
$gridField = $form->Fields()->fieldByName($gridFieldName);
if ($gridField) {
$gridField->getConfig()->addComponent(new GridFieldExportButton());
}
return $form;
}
}
答案 0 :(得分:3)
我们可以创建自定义导出按钮,以在导出项目列表之前对其进行过滤。
首先,我们创建一个扩展GridFieldExportExpiredEventsButton
的{{1}}。这是当前SilverStripe 3.5 GridFieldExportButton
函数的完整副本,但在generateExportFileData
列表中添加了filterByCallback
,以过滤具有$items
的项目。
EndDate < date('Y-m-d')
我们添加的用于过滤导出项的额外行是:
class GridFieldExportExpiredEventsButton extends GridFieldExportButton {
public function getHTMLFragments($gridField) {
$button = new GridField_FormAction(
$gridField,
'export',
'Export expired events',
'export',
null
);
$button->setAttribute('data-icon', 'download-csv');
$button->addExtraClass('no-ajax action_export');
$button->setForm($gridField->getForm());
return array(
$this->targetFragment => '<p class="grid-csv-button">' . $button->Field() . '</p>',
);
}
public function generateExportFileData($gridField) {
$separator = $this->csvSeparator;
$csvColumns = $this->getExportColumnsForGridField($gridField);
$fileData = '';
$member = Member::currentUser();
if($this->csvHasHeader) {
$headers = array();
// determine the CSV headers. If a field is callable (e.g. anonymous function) then use the
// source name as the header instead
foreach($csvColumns as $columnSource => $columnHeader) {
$headers[] = (!is_string($columnHeader) && is_callable($columnHeader)) ? $columnSource : $columnHeader;
}
$fileData .= "\"" . implode("\"{$separator}\"", array_values($headers)) . "\"";
$fileData .= "\n";
}
//Remove GridFieldPaginator as we're going to export the entire list.
$gridField->getConfig()->removeComponentsByType('GridFieldPaginator');
$items = $gridField->getManipulatedList();
$items = $items->filterByCallback(function($item) {
// The following line modifies what items are filtered. Change this to change what items are filtered
return $item->EndDate < date('Y-m-d');
});
// @todo should GridFieldComponents change behaviour based on whether others are available in the config?
foreach($gridField->getConfig()->getComponents() as $component){
if($component instanceof GridFieldFilterHeader || $component instanceof GridFieldSortableHeader) {
$items = $component->getManipulatedData($gridField, $items);
}
}
foreach($items->limit(null) as $item) {
if(!$item->hasMethod('canView') || $item->canView($member)) {
$columnData = array();
foreach($csvColumns as $columnSource => $columnHeader) {
if(!is_string($columnHeader) && is_callable($columnHeader)) {
if($item->hasMethod($columnSource)) {
$relObj = $item->{$columnSource}();
} else {
$relObj = $item->relObject($columnSource);
}
$value = $columnHeader($relObj);
} else {
$value = $gridField->getDataFieldValue($item, $columnSource);
if($value === null) {
$value = $gridField->getDataFieldValue($item, $columnHeader);
}
}
$value = str_replace(array("\r", "\n"), "\n", $value);
$columnData[] = '"' . str_replace('"', '""', $value) . '"';
}
$fileData .= implode($separator, $columnData);
$fileData .= "\n";
}
if($item->hasMethod('destroy')) {
$item->destroy();
}
}
return $fileData;
}
}
更改此项以更改导出的项目列表。我将此设置为仅返回过去具有return $item->EndDate < date('Y-m-d');
的项目。根据需要进行更改。
然后我们将此导出按钮添加到事件模型admin中的网格字段:
EndDate
答案 1 :(得分:1)
这最初是两个答案......
您是否看过GridFieldExportButton
课程?
构造函数
/**
* @param string $targetFragment The HTML fragment to write the button into
* @param array $exportColumns The columns to include in the export
*/
public function __construct($targetFragment = "after", $exportColumns = null) {
$this->targetFragment = $targetFragment;
$this->exportColumns = $exportColumns;
}
所以你应该能够将$exportColumns
作为参数传递。
在您的代码中
if ($gridField) {
$gridField->getConfig()->addComponent(new GridFieldExportButton("after", ["field1", "field2"]));
}
或 - 更好的解决方案
您可以在EventPage
上定义摘要字段
private static $summary_fields = ["FIeld1", "Field2"];
然后确保你的同花顺,它应该用作田地。
所以在这种情况下,我认为你应该创建一个扩展GridFieldExportButton
(可能称为EventPageCSVExportButton
或其他东西)的新类,并覆盖你想要的方法。在你的情况下,它可能是generateExportFileData()
,只需在循环中检查并排除你不想要的数据。
然后在EventAdmin中使用该新类。
答案 2 :(得分:0)
您是否看过GridFieldExportButton
课程?
构造函数
/**
* @param string $targetFragment The HTML fragment to write the button into
* @param array $exportColumns The columns to include in the export
*/
public function __construct($targetFragment = "after", $exportColumns = null) {
$this->targetFragment = $targetFragment;
$this->exportColumns = $exportColumns;
}
所以你应该能够将$exportColumns
作为参数传递。
在您的代码中
if ($gridField) {
$gridField->getConfig()->addComponent(new GridFieldExportButton("after", ["field1", "field2"]));
}
或 - 更好的解决方案
您可以在EventPage
上定义摘要字段
private static $summary_fields = ["FIeld1", "Field2"];
然后确保你的同花顺,它应该用作田地。