mirror of
https://github.com/silverstripe/silverstripe-blog
synced 2024-10-22 11:05:58 +02:00
307 lines
9.1 KiB
PHP
307 lines
9.1 KiB
PHP
<?php
|
|
|
|
/**
|
|
* @package blog
|
|
*/
|
|
|
|
/**
|
|
* Blog tree allows a tree of Blog Holders. Viewing branch nodes shows all blog entries from all blog holder children
|
|
*/
|
|
|
|
class BlogTree extends Page {
|
|
|
|
// Default number of blog entries to show
|
|
static $default_entries_limit = 10;
|
|
|
|
/**
|
|
* @var bool Include an automatic link to the rss feed for
|
|
* the browser. Disabling this will allow you to include your
|
|
* own feedburner link
|
|
*/
|
|
static $include_rss_link = true;
|
|
|
|
static $db = array(
|
|
'Name' => 'Varchar',
|
|
'InheritSideBar' => 'Boolean',
|
|
'LandingPageFreshness' => 'Varchar',
|
|
);
|
|
|
|
static $defaults = array(
|
|
'InheritSideBar' => True
|
|
);
|
|
|
|
static $has_one = array(
|
|
"SideBar" => "WidgetArea",
|
|
);
|
|
|
|
static $allowed_children = array(
|
|
'BlogTree', 'BlogHolder'
|
|
);
|
|
|
|
/*
|
|
* Finds the BlogTree object most related to the current page.
|
|
* - If this page is a BlogTree, use that
|
|
* - If this page is a BlogEntry, use the parent Holder
|
|
* - Otherwise, try and find a 'top-level' BlogTree
|
|
*/
|
|
static function current() {
|
|
$page = Director::currentPage();
|
|
|
|
// If we _are_ a BlogTree, use us
|
|
if ($page instanceof BlogTree) return $page;
|
|
|
|
// Or, if we a a BlogEntry underneath a BlogTree, use our parent
|
|
if ($page->is_a("BlogEntry")) {
|
|
$parent = $page->getParent();
|
|
if ($parent instanceof BlogTree) return $parent;
|
|
}
|
|
|
|
// Try to find a top-level BlogTree
|
|
if(defined('DB::USE_ANSI_SQL')) {
|
|
$top = DataObject::get_one('BlogTree', "\"ParentID\" = '0'");
|
|
} else {
|
|
$top = DataObject::get_one('BlogTree', 'ParentID = 0');
|
|
}
|
|
|
|
if ($top) return $top;
|
|
|
|
// Try to find any BlogTree that is not inside another BlogTree
|
|
foreach(DataObject::get('BlogTree') as $tree) {
|
|
if (!($tree->getParent() instanceof BlogTree)) return $tree;
|
|
}
|
|
|
|
// This shouldn't be possible, but assuming the above fails, just return anything you can get
|
|
return DataObject::get_one('BlogTree');
|
|
}
|
|
|
|
/* ----------- ACCESSOR OVERRIDES -------------- */
|
|
|
|
public function getLandingPageFreshness() {
|
|
$freshness = $this->getField('LandingPageFreshness');
|
|
// If we want to inherit freshness, try that first
|
|
if ($freshness == "INHERIT" && $this->getParent()) $freshness = $this->getParent()->LandingPageFreshness;
|
|
// If we don't have a parent, or the inherited result was still inherit, use default
|
|
if ($freshness == "INHERIT") $freshness = '';
|
|
return $freshness;
|
|
}
|
|
|
|
function SideBar() {
|
|
if ($this->InheritSideBar && $this->getParent()) {
|
|
if (method_exists($this->getParent(), 'SideBar')) return $this->getParent()->SideBar();
|
|
}
|
|
|
|
if($this->SideBarID){
|
|
return DataObject::get_by_id('WidgetArea', $this->SideBarID);
|
|
// @todo: This segfaults - investigate why then fix: return $this->getComponent('SideBar');
|
|
}
|
|
}
|
|
|
|
/* ----------- CMS CONTROL -------------- */
|
|
|
|
function getCMSFields() {
|
|
$fields = parent::getCMSFields();
|
|
$fields->addFieldToTab("Root.Content.Main", new TextField("Name", "Name of blog"));
|
|
$fields->addFieldToTab('Root.Content.Main', new DropdownField('LandingPageFreshness', 'When you first open the blog, how many entries should I show', array(
|
|
"" => "All entries",
|
|
"1 MONTH" => "Last month's entries",
|
|
"2 MONTH" => "Last 2 months' entries",
|
|
"3 MONTH" => "Last 3 months' entries",
|
|
"4 MONTH" => "Last 4 months' entries",
|
|
"5 MONTH" => "Last 5 months' entries",
|
|
"6 MONTH" => "Last 6 months' entries",
|
|
"7 MONTH" => "Last 7 months' entries",
|
|
"8 MONTH" => "Last 8 months' entries",
|
|
"9 MONTH" => "Last 9 months' entries",
|
|
"10 MONTH" => "Last 10 months' entries",
|
|
"11 MONTH" => "Last 11 months' entries",
|
|
"12 MONTH" => "Last year's entries",
|
|
"INHERIT" => "Take value from parent Blog Tree"
|
|
)));
|
|
|
|
$fields->addFieldToTab("Root.Content.Widgets", new CheckboxField("InheritSideBar", 'Inherit Sidebar From Parent'));
|
|
$fields->addFieldToTab("Root.Content.Widgets", new WidgetAreaEditor("SideBar"));
|
|
|
|
return $fields;
|
|
}
|
|
|
|
/* ----------- New accessors -------------- */
|
|
|
|
public function loadDescendantBlogHolderIDListInto(&$idList) {
|
|
if ($children = $this->AllChildren()) {
|
|
foreach($children as $child) {
|
|
if (in_array($child->ID, $idList)) continue;
|
|
|
|
if ($child instanceof BlogHolder) {
|
|
$idList[] = $child->ID;
|
|
}
|
|
else if ($child instanceof BlogTree) {
|
|
$child->loadDescendantBlogHolderIDListInto($idList);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Build a list of all IDs for BlogHolders that are children of us
|
|
public function BlogHolderIDs() {
|
|
$holderIDs = array();
|
|
$this->loadDescendantBlogHolderIDListInto($holderIDs);
|
|
return $holderIDs;
|
|
}
|
|
|
|
/**
|
|
* Get entries in this blog.
|
|
* @param string limit A clause to insert into the limit clause.
|
|
* @param string tag Only get blog entries with this tag
|
|
* @param string date Only get blog entries on this date - either a year, or a year-month eg '2008' or '2008-02'
|
|
* @param callback retrieveCallback A function to call with pagetype, filter and limit for custom blog sorting or filtering
|
|
* @param string $where
|
|
* @return DataObjectSet
|
|
*/
|
|
public function Entries($limit = '', $tag = '', $date = '', $retrieveCallback = null, $filter = '') {
|
|
$tagCheck = '';
|
|
$dateCheck = '';
|
|
|
|
if ($tag) {
|
|
$SQL_tag = Convert::raw2sql($tag);
|
|
if(defined('DB::USE_ANSI_SQL')) {
|
|
$tagCheck = "AND \"BlogEntry\".\"Tags\" LIKE '%$SQL_tag%'";
|
|
} else {
|
|
$tagCheck = "AND `BlogEntry`.Tags LIKE '%$SQL_tag%'";
|
|
}
|
|
}
|
|
|
|
if ($date) {
|
|
if(strpos($date, '-')) {
|
|
$year = (int) substr($date, 0, strpos($date, '-'));
|
|
$month = (int) substr($date, strpos($date, '-') + 1);
|
|
|
|
if($year && $month) {
|
|
if(defined('DB::USE_ANSI_SQL')) {
|
|
$dateCheck = "AND MONTH(\"BlogEntry\".\"Date\") = '$month' AND YEAR(\"BlogEntry\".\"Date\") = '$year'";
|
|
} else {
|
|
$dateCheck = "AND MONTH(`BlogEntry`.Date) = $month AND YEAR(`BlogEntry`.Date) = $year";
|
|
}
|
|
}
|
|
} else {
|
|
$year = (int) $date;
|
|
if($year) {
|
|
if(defined('DB::USE_ANSI_SQL')) {
|
|
$dateCheck = "AND YEAR(\"BlogEntry\".\"Date\") = '$year'";
|
|
} else {
|
|
$dateCheck = "AND YEAR(`BlogEntry`.Date) = $year";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Build a list of all IDs for BlogHolders that are children of us
|
|
$holderIDs = $this->BlogHolderIDs();
|
|
|
|
// If no BlogHolders, no BlogEntries. So return false
|
|
if (empty($holderIDs)) return false;
|
|
|
|
// Otherwise, do the actual query
|
|
if($filter) $filter .= ' AND ';
|
|
if(defined('DB::USE_ANSI_SQL')) {
|
|
$filter .= '"ParentID" IN (' . implode(',', $holderIDs) . ") $tagCheck $dateCheck";
|
|
} else {
|
|
$filter .= '`ParentID` IN (' . implode(',', $holderIDs) . ") $tagCheck $dateCheck";
|
|
}
|
|
|
|
if(defined('DB::USE_ANSI_SQL')) {
|
|
$order = '"BlogEntry"."Date" DESC';
|
|
} else {
|
|
$order = '`BlogEntry`.`Date` DESC';
|
|
}
|
|
|
|
// By specifying a callback, you can alter the SQL, or sort on something other than date.
|
|
if ($retrieveCallback) return call_user_func($retrieveCallback, 'BlogEntry', $filter, $limit, $order);
|
|
else return DataObject::get('BlogEntry', $filter, $order, '', $limit);
|
|
}
|
|
}
|
|
|
|
class BlogURL {
|
|
static function tag() {
|
|
if (Director::urlParam('Action') == 'tag') return Convert::raw2xml(Director::urlParam('ID'));
|
|
return '';
|
|
}
|
|
|
|
static function date() {
|
|
$year = Director::urlParam('Action');
|
|
$month = Director::urlParam('ID');
|
|
|
|
if ($month && is_numeric($month) && $month >= 1 && $month <= 12 && is_numeric($year)) {
|
|
return "$year-$month";
|
|
}
|
|
elseif (is_numeric($year)) {
|
|
return $year;
|
|
}
|
|
|
|
return '';
|
|
}
|
|
}
|
|
|
|
class BlogTree_Controller extends Page_Controller {
|
|
static $allowed_actions = array(
|
|
'index',
|
|
'rss',
|
|
);
|
|
|
|
function init() {
|
|
parent::init();
|
|
|
|
if(BlogTree::$include_rss_link) {
|
|
$this->IncludeBlogRSS();
|
|
}
|
|
|
|
Requirements::themedCSS("blog");
|
|
}
|
|
|
|
function BlogEntries($limit = null) {
|
|
if ($limit === null) $limit = BlogTree::$default_entries_limit;
|
|
|
|
// only use freshness if no action is present (might be displaying tags or rss)
|
|
if ($this->LandingPageFreshness && !$this->request->param('Action')) {
|
|
if(defined('DB::USE_ANSI_SQL')) {
|
|
$filter = "\"BlogEntry\".\"Date\" > NOW() - INTERVAL " . $this->LandingPageFreshness;
|
|
} else {
|
|
$filter = "`BlogEntry`.Date > NOW() - INTERVAL " . $this->LandingPageFreshness;
|
|
}
|
|
} else {
|
|
$filter = '';
|
|
}
|
|
|
|
$start = isset($_GET['start']) ? (int) $_GET['start'] : 0;
|
|
return $this->Entries("$start,$limit", BlogURL::tag(), BlogURL::date(), null, $filter);
|
|
}
|
|
|
|
function IncludeBlogRSS() {
|
|
// This will create a <link> tag point to the RSS feed
|
|
RSSFeed::linkToFeed($this->Link() . "rss", _t('BlogHolder.RSSFEED',"RSS feed of these blogs"));
|
|
}
|
|
|
|
/**
|
|
* Get the rss feed for this blog holder's entries
|
|
*/
|
|
function rss() {
|
|
global $project_name;
|
|
|
|
$blogName = $this->Name;
|
|
$altBlogName = $project_name . ' blog';
|
|
|
|
$entries = $this->Entries(20);
|
|
|
|
if($entries) {
|
|
$rss = new RSSFeed($entries, $this->Link(), ($blogName ? $blogName : $altBlogName), "", "Title", "ParsedContent");
|
|
$rss->outputToBrowser();
|
|
}
|
|
}
|
|
|
|
function defaultAction($action) {
|
|
// Protection against infinite loops when an RSS widget pointing to this page is added to this page
|
|
if(stristr($_SERVER['HTTP_USER_AGENT'], 'SimplePie')) return $this->rss();
|
|
|
|
return parent::defaultAction($action);
|
|
}
|
|
}
|
|
?>
|