Silverstripe Snippets

_config.php

<?php

// Set default cache length in seconds
HTTP::set_cache_age( 60 );

// Disable cache per page
HTTP::set_cache_age( 0 );

// Set default cache lifetime in seconds
SS_Cache::set_cache_lifetime('all', 600, 1);

// Set template partial caching in seconds
SS_Cache::set_cache_lifetime('cacheblock', 120, 2);

// Change order of comment listings
PageCommentInterface::$order_comments_by = '"Created" ASC';

// Put in site config
Security::set_login_recording(true);

other.php

<?php

function SearchTest() {

		// Search for all news posts that have the announcements or reviews category
		$criteria = array( 
			'Categories.URLSegment' => array('announcements','reviews'),
		);
		$search = new SearchContext(
			'NewsPost',
			array(),
			array(
				'Categories.URLSegment' => new ExactMatchFilter('Categories.URLSegment'),
			)
		);
		return $search->getResults($criteria);

		// Basic search on Title
		$criteria = array( 
			'Title' => $_GET['title'],
		);
		$search = new SearchContext(
			'NewsPost',
			array(),
			array(
				'Title' => new ExactMatchFilter('Title')
			)
		);
		return $search->getResults($criteria);

}

Page.php

<?php

// A new page type
class Page extends SiteTree {

	static $icon = array('/site/icons/page.png?','file');
	// Or if you have icons in multiple states:
	// static $icon = '/site/icons/page';

	// Allowed child types
	// static $allowed_children = array('MyPage');

	// Default child type
	static $default_child = "Page";

	// Can exist at the root of the site?
	static $can_be_root = true;

	// Extensions
	static $extensions = array();

	/*
	static $many_many = array(
		'FeaturePanels' => 'FeatureLinkPanel'
	);
	*/

	/*
	static $db = array(
		'NewField' =>'Boolean'
	);
	static $defaults = array(
		'NewField' => '1'
	);
	*/

	public function canCreate() {
		// Only allow one page of this type
		// return !DataObject::get_one($this->class);

		return parent::canCreate();
	}

	public function canDelete() {

		// Don't allow deletion
		// return false;

		return parent::canDelete();
	}

	/**
	*  Customise the CMS field
	*
	*  @return FieldsSet
	*/
	public function getCMSFields(){
		$fields = parent::getCMSFields();
		return $fields;
	}

	/**
	 * Return classes for the body
	 *
	 * @return string The HTML metatags
	 */
	public function BodyClasses() {

		$classes = array();

		// Get each of the page types
		$className = get_class($this);
		$classes []= 'type'. strtolower(preg_replace('~([A-Z])~','-$1',$className));
		while( ($className = get_parent_class($className)) && $className != 'SiteTree' ) {
			$classes []= 'subtype'. strtolower(preg_replace('~([A-Z])~','-$1',$className));
		}

		// Add a page ID
		$page = $this;
		$classes []= 'page-id-'.$page->ID;

		// Find the section by looping through the parents
		while( true ) {
			$newpage = $page->Parent;
			if( $newpage ) {
				$page = $newpage;
			} else {
				$classes []= 'section-'.$page->URLSegment;
				break;
			}
		}

		return implode(' ',$classes);

	}

	/**
	 * Return the title
	 *
	 * @return string The HTML metatags
	 */
	function MetaTitle(){
		if($this->MetaTitle && $this->MetaTitle != $this->Title) {
			return $this->MetaTitle;
		} else {
			return $this->getSiteConfig()->Title . ' - ' . $this->Title;
		}

	}

	/**
	 * Return the title, description, keywords and language metatags.
	 *
	 * @todo Move <title> tag in separate getter for easier customization and more obvious usage
	 *
	 * @param boolean|string $includeTitle Show default <title>-tag, set to false for custom templating
	 * @param boolean $includeTitle Show default <title>-tag, set to false for
	 *                              custom templating
	 * @return string The HTML metatags
	 */
	public function MetaTags($includeTitle = false, $indent="\t" ) {
		$tags = array();

		if($includeTitle === true || $includeTitle == 'true') {
			$tags []= "<title>" . $this->MetaTitle() . "</title>";
		}

		// Keywords
		if( $this->MetaKeywords ) {
			$tags []= '<meta name="keywords" content="' . Convert::raw2att($this->MetaKeywords) . '">';
		}

		// Description
		if( $this->MetaKeywords ) {
			$tags []= '<meta name="description" content="' . Convert::raw2att($this->MetaDescription) . '">';
		}

		if( $this->ExtraMeta ) {
			$tags []= $this->ExtraMeta;
		}

		$tags = implode("\n".$indent,$tags);
		$this->extend('MetaTags', $tags);
		return $tags;
	}

	/**
	 * Return an array of opengraph metadata elements
	 *
	 * @return string The HTML metatags
	 */
	protected function OpenGraphMetaTagElements() {

		$tags = array();

		$tags['site_name'] = $this->getSiteConfig()->Title;
		$tags['title'] = $this->MetaTitle();
		$tags['description'] = $this->MetaDescription ? $this->MetaDescription : $this->getSiteConfig()->SiteDescription;
		$tags['type'] = 'article';

		// Get default image from Site Config
		if( $siteImage = $this->getSiteConfig()->SiteImage() ) {
			$siteImageUrl = $siteImage->URL('opengraph');
			$tags['image'] = $siteImageUrl;
		}

		if( $this->has_one('Image') ) {
			$iconsize = 'opengraph';
			if($iconsize && $img = $this->Image()) {
				$tags['image'] = $img->URL($iconsize);
			}
		}

		$tags['url'] = $this->AbsoluteLink();
		return $tags;

	}

	/**
	 * Return the open graph tags
	 *
	 * @return string The HTML metatags
	 */
	public function OpenGraphMetaTags( $indent="\t" ) {

		$tags = $this->OpenGraphMetaTagElements();

		if( !is_array($tags) ) {
			return '';
		}

		$output = array();
		foreach( $tags as $key => $val ) {
			$output []= '<meta property="og:'.$key.'" content="' . Convert::raw2att($val) . '">';
		}
		$tags = implode("\n".$indent,$output);
		return $tags;

	}

	/**
	* Adds first/last/start/end class to a list item.
	*
	* Sometimes you need to:
	* Lay out a load of thumbnails in a grid.
	* Style only the first or last elements in a vertical/horizontal list of items
	*
	* You can do this using nth-child pseudoselectors, but it is dangerous.
	*
	* Instead, on any list of elements:
	*
	* add a _first_ class to the very first one
	* add a _last_ class to the very last one
	* add a _start_ class to the first item on a row (e.g. every 4th item, starting with the first one)
	* add an _end_ class to the last item on a row (e.g. every 4th item, starting with the fourth one)
	*
	* @param $rowLength length of each row
	* @return string list class
	*/
	public function ListClass( $rowLength ) {
		$classes = array();

		// first
		if ($this->iteratorPos == 0) {
			$classes[] = 'first';
		}

		// last
		if($this->iteratorPos == $this->iteratorTotalItems - 1) {
			$classes[] = 'last';
		}

		// start
		if ($this->iteratorPos % $rowLength == 0) {
			$classes[] = 'start';
		}

		// end
		if ($this->iteratorPos % $rowLength == $rowLength - 1) {
			$classes[] = 'end';
		}

		$html = join(' ', $classes);
		return $html;
	}

	/**
	* Return the value of the current environment
	*/
	public function Environment() {
		$val = Director::get_environment_type() or $val = 'live';
		return $val;
	}

}

Site_Controller.php

<?php

// Put in Site_Controller, call to flip between SSL and non-SSL pages
protected function _checkSSL() {
	$needSSL = $inSSL = $destURL = false;
	$inSSL = ( isset($_SERVER['SSL']) || (isset($_SERVER['HTTPS']) &amp;&amp; $_SERVER['HTTPS'] == 'on') ) ? true : false;

	// Get static $ssl_actions and see if we need to switch in or out of SSL
	if($all_ssl_actions = Object::combined_static($this, 'ssl_actions') and is_array($all_ssl_actions) ) {
		$action = $this->getRequest()->latestParam('Action'); //  $this->getAction() always empty??
		if( in_array($action,$all_ssl_actions) or
			(in_array('index',$all_ssl_actions) and is_null($action) )	) {
			$needSSL = true;
		}
	}

	if( $needSSL and !$inSSL ){
		$destURL = str_replace('http:','https:', Director::absoluteURL($_SERVER['REQUEST_URI']));
	} elseif( !$needSSL and $inSSL ) {
		$destURL = str_replace('https:','http:', Director::absoluteURL($_SERVER['REQUEST_URI']));
	}

	if( $destURL ) {
		header("Location: $destURL", true, 301);
		die('<h1>Your browser is not accepting header redirects</h1><p>Please <a href="'.$destURL.'">click here</a>');
	}
}

Template.ss

// Caching lists
<% cached 'child-pages', Aggregate(Children).Max(LastEdited) %>
<% cached unless CurrentUser %>