silverstripe-blog/code/widgets/BlogArchiveWidget.php

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<?php
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if(!class_exists('Widget')) {
return;
}
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/**
* @method Blog Blog()
*
* @property string $ArchiveType
* @property int $NumberToDisplay
*/
class BlogArchiveWidget extends Widget {
/**
* @var string
*/
private static $title = 'Archive';
/**
* @var string
*/
private static $cmsTitle = 'Archive';
/**
* @var string
*/
private static $description = 'Displays an archive list of posts.';
/**
* @var array
*/
private static $db = array(
'NumberToDisplay' => 'Int',
'ArchiveType' => 'Enum("Monthly,Yearly", "Monthly")',
);
/**
* @var array
*/
private static $defaults = array(
'NumberOfMonths' => 12,
);
/**
* @var array
*/
private static $has_one = array(
'Blog' => 'Blog',
);
/**
* {@inheritdoc}
*/
public function getCMSFields() {
$self = &$this;
$this->beforeUpdateCMSFields(function ($fields) use ($self) {
$type = $self->dbObject('ArchiveType')->enumValues();
foreach($type as $k => $v) {
$type[$k] = _t('BlogArchiveWidget.' . ucfirst(strtolower($v)), $v);
}
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$fields->merge(array(
DropdownField::create('BlogID', _t('BlogArchiveWidget.Blog', 'Blog'), Blog::get()->map()),
DropdownField::create('ArchiveType', _t('BlogArchiveWidget.ArchiveType', 'ArchiveType'), $type),
NumericField::create('NumberToDisplay', _t('BlogArchiveWidget.NumberToDisplay', 'No. to Display'))
));
});
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return parent::getCMSFields();
}
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/**
* Returns a list of months where blog posts are present.
*
* @return DataList
*/
public function getArchive() {
$query = $this->Blog()->getBlogPosts()->dataQuery();
if($this->ArchiveType == 'Yearly') {
$query->groupBy('DATE_FORMAT(PublishDate, "%Y")');
} else {
$query->groupBy('DATE_FORMAT(PublishDate, "%Y-%M")');
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}
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$posts = $this->Blog()->getBlogPosts()->setDataQuery($query);
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if($this->NumberToDisplay > 0) {
$posts = $posts->limit($this->NumberToDisplay);
}
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$archive = new ArrayList();
if($posts->count() > 0) {
foreach($posts as $post) {
/**
* @var BlogPost $post
*/
if($this->ArchiveType == 'Yearly') {
$year = date('Y', strtotime($post->PublishDate));
$month = null;
$title = $year;
} else {
$year = date('Y', strtotime($post->PublishDate));
$month = date('m', strtotime($post->PublishDate));
$title = date('F Y', strtotime($post->PublishDate));
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}
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$archive->push(new ArrayData(array(
'Title' => $title,
'Link' => Controller::join_links($this->Blog()->Link('archive'), $year, $month)
)));
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}
}
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return $archive;
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}
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}
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class BlogArchiveWidget_Controller extends Widget_Controller {
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}