Merge branch 'statusnetworkapi' into 1.0.x

[quix0rs-gnu-social.git] / classes / File.php

diff --git a/classes/File.php b/classes/File.php
index 499c8d72c392f9225cf11e3ed009b40272802506..36ffff585c58c6f3b56762bde062847e14b8572b 100644 (file)
--- a/classes/File.php
+++ b/classes/File.php
@@ -55,14 +55,20 @@ class File extends Memcached_DataObject
         return 'http://www.facebook.com/login.php' === $url;
     }
 
-    function getAttachments($post_id) {
-        $query = "select file.* from file join file_to_post on (file_id = file.id) join notice on (post_id = notice.id) where post_id = " . $this->escape($post_id);
-        $this->query($query);
+    /**
+     * Get the attachments for a particlar notice.
+     *
+     * @param int $post_id
+     * @return array of File objects
+     */
+    static function getAttachments($post_id) {
+        $file = new File();
+        $query = "select file.* from file join file_to_post on (file_id = file.id) where post_id = " . $file->escape($post_id);
+        $file = Memcached_DataObject::cachedQuery('File', $query);
         $att = array();
-        while ($this->fetch()) {
-            $att[] = clone($this);
+        while ($file->fetch()) {
+            $att[] = clone($file);
         }
-        $this->free();
         return $att;
     }
 
@@ -116,10 +122,24 @@ class File extends Memcached_DataObject
     }
 
     /**
+     * Go look at a URL and possibly save data about it if it's new:
+     * - follow redirect chains and store them in file_redirection
+     * - look up oEmbed data and save it in file_oembed
+     * - if a thumbnail is available, save it in file_thumbnail
+     * - save file record with basic info
+     * - optionally save a file_to_post record
+     * - return the File object with the full reference
+     *
      * @fixme refactor this mess, it's gotten pretty scary.
-     * @param bool $followRedirects
+     * @param string $given_url the URL we're looking at
+     * @param int $notice_id (optional)
+     * @param bool $followRedirects defaults to true
+     *
+     * @return mixed File on success, -1 on some errors
+     *
+     * @throws ServerException on some errors
      */
-    function processNew($given_url, $notice_id=null, $followRedirects=true) {
+    public function processNew($given_url, $notice_id=null, $followRedirects=true) {
         if (empty($given_url)) return -1;   // error, no url to process
         $given_url = File_redirection::_canonUrl($given_url);
         if (empty($given_url)) return -1;   // error, no url to process
@@ -398,4 +418,58 @@ class File extends Memcached_DataObject
     {
         return File_thumbnail::staticGet('file_id', $this->id);
     }
+
+    /**
+     * Blow the cache of notices that link to this URL
+     *
+     * @param boolean $last Whether to blow the "last" cache too
+     *
+     * @return void
+     */
+
+    function blowCache($last=false)
+    {
+        self::blow('file:notice-ids:%s', $this->url);
+        if ($last) {
+            self::blow('file:notice-ids:%s;last', $this->url);
+        }
+        self::blow('file:notice-count:%d', $this->id);
+    }
+
+    /**
+     * Stream of notices linking to this URL
+     *
+     * @param integer $offset   Offset to show; default is 0
+     * @param integer $limit    Limit of notices to show
+     * @param integer $since_id Since this notice
+     * @param integer $max_id   Before this notice
+     *
+     * @return array ids of notices that link to this file
+     */
+
+    function stream($offset=0, $limit=NOTICES_PER_PAGE, $since_id=0, $max_id=0)
+    {
+        $stream = new FileNoticeStream($this);
+        return $stream->getNotices($offset, $limit, $since_id, $max_id);
+    }
+
+    function noticeCount()
+    {
+        $cacheKey = sprintf('file:notice-count:%d', $this->id);
+        
+        $count = self::cacheGet($cacheKey);
+
+        if ($count === false) {
+
+            $f2p = new File_to_post();
+
+            $f2p->file_id = $this->id;
+
+            $count = $f2p->count();
+
+            self::cacheSet($cacheKey, $count);
+        } 
+
+        return $count;
+    }
 }