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[ticket/14168] Further split up attachment delete class
PHPBB3-14168
This commit is contained in:
Marc Alexander
parent
4709c8a128
commit
ebfdd69525
@ -35,6 +35,27 @@ class delete
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/** @var array Attachement IDs */
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/** @var array Attachement IDs */
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protected $ids;
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protected $ids;
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/** @var string SQL ID string */
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private $sql_id;
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/** @var string SQL where string */
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private $sql_where = '';
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/** @var int Number of deleted items */
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private $num_deleted;
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/** @var array Post IDs */
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private $post_ids = array();
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/** @var array Message IDs */
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private $message_ids = array();
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/** @var array Topic IDs */
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private $topic_ids = array();
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/** @var array Info of physical file */
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private $physical = array();
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/**
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/**
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* Attachment delete class constructor
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* Attachment delete class constructor
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*
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*
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@ -66,31 +87,7 @@ class delete
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return false;
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return false;
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}
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}
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$sql_where = '';
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$this->set_sql_constraints($mode);
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switch ($mode)
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{
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case 'post':
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case 'message':
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$sql_id = 'post_msg_id';
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$sql_where = ' AND in_message = ' . ($mode == 'message' ? 1 : 0);
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break;
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case 'topic':
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$sql_id = 'topic_id';
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break;
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case 'user':
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$sql_id = 'poster_id';
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break;
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case 'attach':
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default:
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$sql_id = 'attach_id';
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break;
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}
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$post_ids = $message_ids = $topic_ids = $physical = array();
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/**
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/**
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* Perform additional actions before collecting data for attachment(s) deletion
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* Perform additional actions before collecting data for attachment(s) deletion
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@ -111,68 +108,10 @@ class delete
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extract($this->dispatcher->trigger_event('core.delete_attachments_collect_data_before', compact($vars)));
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extract($this->dispatcher->trigger_event('core.delete_attachments_collect_data_before', compact($vars)));
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// Collect post and topic ids for later use if we need to touch remaining entries (if resync is enabled)
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// Collect post and topic ids for later use if we need to touch remaining entries (if resync is enabled)
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$sql = 'SELECT post_msg_id, topic_id, in_message, physical_filename, thumbnail, filesize, is_orphan
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$this->collect_attachment_info($resync);
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FROM ' . ATTACHMENTS_TABLE . '
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WHERE ' . $this->db->sql_in_set($sql_id, $ids);
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$sql .= $sql_where;
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// Delete attachments from database
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$this->delete_attachments_from_db();
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$result = $this->db->sql_query($sql);
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while ($row = $this->db->sql_fetchrow($result))
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{
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// We only need to store post/message/topic ids if resync is enabled and the file is not orphaned
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if ($resync && !$row['is_orphan'])
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{
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if (!$row['in_message'])
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{
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$post_ids[] = $row['post_msg_id'];
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$topic_ids[] = $row['topic_id'];
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}
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else
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{
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$message_ids[] = $row['post_msg_id'];
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}
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}
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$physical[] = array('filename' => $row['physical_filename'], 'thumbnail' => $row['thumbnail'], 'filesize' => $row['filesize'], 'is_orphan' => $row['is_orphan']);
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}
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$this->db->sql_freeresult($result);
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/**
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* Perform additional actions before attachment(s) deletion
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*
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* @event core.delete_attachments_before
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* @var string mode Variable containing attachments deletion mode, can be: post|message|topic|attach|user
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* @var mixed ids Array or comma separated list of ids corresponding to the mode
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* @var bool resync Flag indicating if posts/messages/topics should be synchronized
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* @var string sql_id The field name to collect/delete data for depending on the mode
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* @var array post_ids Array with post ids for deleted attachment(s)
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* @var array topic_ids Array with topic ids for deleted attachment(s)
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* @var array message_ids Array with private message ids for deleted attachment(s)
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* @var array physical Array with deleted attachment(s) physical file(s) data
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* @since 3.1.7-RC1
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*/
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$vars = array(
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'mode',
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'ids',
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'resync',
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'sql_id',
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'post_ids',
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'topic_ids',
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'message_ids',
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'physical',
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);
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extract($this->dispatcher->trigger_event('core.delete_attachments_before', compact($vars)));
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// Delete attachments
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$sql = 'DELETE FROM ' . ATTACHMENTS_TABLE . '
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WHERE ' . $this->db->sql_in_set($sql_id, $ids);
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$sql .= $sql_where;
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$this->db->sql_query($sql);
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$num_deleted = $this->db->sql_affectedrows();
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/**
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/**
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* Perform additional actions after attachment(s) deletion from the database
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* Perform additional actions after attachment(s) deletion from the database
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@ -202,14 +141,265 @@ class delete
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);
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);
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extract($this->dispatcher->trigger_event('core.delete_attachments_from_database_after', compact($vars)));
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extract($this->dispatcher->trigger_event('core.delete_attachments_from_database_after', compact($vars)));
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if (!$num_deleted)
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if (!$this->num_deleted)
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{
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{
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return 0;
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return 0;
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}
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}
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// Delete attachments from filesystem
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// Delete attachments from filesystem
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$this->delete_attachments_from_filesystem();
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// If we do not resync, we do not need to adjust any message, post, topic or user entries
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if (!$resync)
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{
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return $this->num_deleted;
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}
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// No more use for the original ids
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unset($ids);
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// Now, we need to resync posts, messages, topics. We go through every one of them
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// Update post indicators for posts now no longer having attachments
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if (sizeof($this->post_ids))
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{
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// Just check which posts are still having an assigned attachment not orphaned by querying the attachments table
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$sql = 'SELECT post_msg_id
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FROM ' . ATTACHMENTS_TABLE . '
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WHERE ' . $this->db->sql_in_set('post_msg_id', $this->post_ids) . '
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AND in_message = 0
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AND is_orphan = 0';
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$result = $this->db->sql_query($sql);
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$remaining_ids = array();
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while ($row = $this->db->sql_fetchrow($result))
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{
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$remaining_ids[] = $row['post_msg_id'];
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}
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$this->db->sql_freeresult($result);
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// Now only unset those ids remaining
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$this->post_ids = array_diff($this->post_ids, $remaining_ids);
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if (sizeof($this->post_ids))
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{
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$sql = 'UPDATE ' . POSTS_TABLE . '
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SET post_attachment = 0
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WHERE ' . $this->db->sql_in_set('post_id', $this->post_ids);
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$this->db->sql_query($sql);
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}
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}
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// Update message table if messages are affected
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if (sizeof($this->message_ids))
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{
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// Just check which messages are still having an assigned attachment not orphaned by querying the attachments table
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$sql = 'SELECT post_msg_id
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FROM ' . ATTACHMENTS_TABLE . '
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WHERE ' . $this->db->sql_in_set('post_msg_id', $this->message_ids) . '
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AND in_message = 1
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AND is_orphan = 0';
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$result = $this->db->sql_query($sql);
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$remaining_ids = array();
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while ($row = $this->db->sql_fetchrow($result))
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{
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$remaining_ids[] = $row['post_msg_id'];
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}
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$this->db->sql_freeresult($result);
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// Now only unset those ids remaining
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$this->message_ids = array_diff($this->message_ids, $remaining_ids);
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if (sizeof($this->message_ids))
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{
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$sql = 'UPDATE ' . PRIVMSGS_TABLE . '
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SET message_attachment = 0
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WHERE ' . $this->db->sql_in_set('msg_id', $this->message_ids);
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$this->db->sql_query($sql);
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}
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}
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// Now update the topics. This is a bit trickier, because there could be posts still having attachments within the topic
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if (sizeof($this->topic_ids))
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{
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// Just check which topics are still having an assigned attachment not orphaned by querying the attachments table (much less entries expected)
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$sql = 'SELECT topic_id
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FROM ' . ATTACHMENTS_TABLE . '
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WHERE ' . $this->db->sql_in_set('topic_id', $this->topic_ids) . '
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AND is_orphan = 0';
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$result = $this->db->sql_query($sql);
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$remaining_ids = array();
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while ($row = $this->db->sql_fetchrow($result))
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{
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$remaining_ids[] = $row['topic_id'];
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}
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$this->db->sql_freeresult($result);
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// Now only unset those ids remaining
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$this->topic_ids = array_diff($this->topic_ids, $remaining_ids);
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if (sizeof($this->topic_ids))
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{
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$sql = 'UPDATE ' . TOPICS_TABLE . '
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SET topic_attachment = 0
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WHERE ' . $this->db->sql_in_set('topic_id', $this->topic_ids);
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$this->db->sql_query($sql);
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}
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}
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return $this->num_deleted;
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}
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/**
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* Set attachment IDs
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*
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* @param array $ids
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*
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* @return bool True if attachment IDs were set, false if not
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*/
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protected function set_attachment_ids($ids)
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{
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// 0 is as bad as an empty array
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if (empty($ids))
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{
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return false;
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}
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if (is_array($ids))
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{
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$ids = array_unique($ids);
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$this->ids = array_map('intval', $ids);
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}
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else
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{
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$this->ids = array((int) $ids);
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}
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return true;
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}
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/**
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* Set SQL constraints based on mode
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*
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* @param string $mode Delete mode; can be: post|message|topic|attach|user
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*/
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private function set_sql_constraints($mode)
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{
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switch ($mode)
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{
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case 'post':
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case 'message':
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$this->sql_id = 'post_msg_id';
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$this->sql_where = ' AND in_message = ' . ($mode == 'message' ? 1 : 0);
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break;
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case 'topic':
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$this->sql_id = 'topic_id';
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break;
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case 'user':
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$this->sql_id = 'poster_id';
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break;
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case 'attach':
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default:
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$this->sql_id = 'attach_id';
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break;
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}
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}
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/**
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* Collect info about attachment IDs
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*
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* @param bool $resync Whether topics/posts should be resynced after delete
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*/
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protected function collect_attachment_info($resync)
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{
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// Collect post and topic ids for later use if we need to touch remaining entries (if resync is enabled)
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$sql = 'SELECT post_msg_id, topic_id, in_message, physical_filename, thumbnail, filesize, is_orphan
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FROM ' . ATTACHMENTS_TABLE . '
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WHERE ' . $this->db->sql_in_set($this->sql_id, $this->ids);
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$sql .= $this->sql_where;
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$result = $this->db->sql_query($sql);
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while ($row = $this->db->sql_fetchrow($result))
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{
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// We only need to store post/message/topic ids if resync is enabled and the file is not orphaned
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if ($resync && !$row['is_orphan'])
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{
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if (!$row['in_message'])
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{
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$this->post_ids[] = $row['post_msg_id'];
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$this->topic_ids[] = $row['topic_id'];
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}
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else
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{
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$this->message_ids[] = $row['post_msg_id'];
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}
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}
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$this->physical[] = array('filename' => $row['physical_filename'], 'thumbnail' => $row['thumbnail'], 'filesize' => $row['filesize'], 'is_orphan' => $row['is_orphan']);
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}
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$this->db->sql_freeresult($result);
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// IDs should be unique
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$this->post_ids = array_unique($this->post_ids);
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$this->message_ids = array_unique($this->message_ids);
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$this->topic_ids = array_unique($this->topic_ids);
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}
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/**
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* Delete attachments from database table
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*/
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protected function delete_attachments_from_db()
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{
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/**
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* Perform additional actions before attachment(s) deletion
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*
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* @event core.delete_attachments_before
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* @var string mode Variable containing attachments deletion mode, can be: post|message|topic|attach|user
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* @var mixed ids Array or comma separated list of ids corresponding to the mode
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* @var bool resync Flag indicating if posts/messages/topics should be synchronized
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||||||
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* @var string sql_id The field name to collect/delete data for depending on the mode
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* @var array post_ids Array with post ids for deleted attachment(s)
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* @var array topic_ids Array with topic ids for deleted attachment(s)
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* @var array message_ids Array with private message ids for deleted attachment(s)
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* @var array physical Array with deleted attachment(s) physical file(s) data
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* @since 3.1.7-RC1
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*/
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$vars = array(
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'mode',
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'ids',
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'resync',
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'sql_id',
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'post_ids',
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'topic_ids',
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'message_ids',
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'physical',
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);
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extract($this->dispatcher->trigger_event('core.delete_attachments_before', compact($vars)));
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|
|
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// Delete attachments
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$sql = 'DELETE FROM ' . ATTACHMENTS_TABLE . '
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WHERE ' . $this->db->sql_in_set($this->sql_id, $this->ids);
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$sql .= $this->sql_where;
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$this->db->sql_query($sql);
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$this->num_deleted = $this->db->sql_affectedrows();
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}
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/**
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* Delete attachments from filesystem
|
||||||
|
*/
|
||||||
|
protected function delete_attachments_from_filesystem()
|
||||||
|
{
|
||||||
$space_removed = $files_removed = 0;
|
$space_removed = $files_removed = 0;
|
||||||
foreach ($physical as $file_ary)
|
|
||||||
|
foreach ($this->physical as $file_ary)
|
||||||
{
|
{
|
||||||
if (phpbb_unlink($file_ary['filename'], 'file', true) && !$file_ary['is_orphan'])
|
if (phpbb_unlink($file_ary['filename'], 'file', true) && !$file_ary['is_orphan'])
|
||||||
{
|
{
|
||||||
@ -261,138 +451,5 @@ class delete
|
|||||||
$this->config->increment('upload_dir_size', $space_removed * (-1), false);
|
$this->config->increment('upload_dir_size', $space_removed * (-1), false);
|
||||||
$this->config->increment('num_files', $files_removed * (-1), false);
|
$this->config->increment('num_files', $files_removed * (-1), false);
|
||||||
}
|
}
|
||||||
|
|
||||||
// If we do not resync, we do not need to adjust any message, post, topic or user entries
|
|
||||||
if (!$resync)
|
|
||||||
{
|
|
||||||
return $num_deleted;
|
|
||||||
}
|
|
||||||
|
|
||||||
// No more use for the original ids
|
|
||||||
unset($ids);
|
|
||||||
|
|
||||||
// Now, we need to resync posts, messages, topics. We go through every one of them
|
|
||||||
$post_ids = array_unique($post_ids);
|
|
||||||
$message_ids = array_unique($message_ids);
|
|
||||||
$topic_ids = array_unique($topic_ids);
|
|
||||||
|
|
||||||
// Update post indicators for posts now no longer having attachments
|
|
||||||
if (sizeof($post_ids))
|
|
||||||
{
|
|
||||||
// Just check which posts are still having an assigned attachment not orphaned by querying the attachments table
|
|
||||||
$sql = 'SELECT post_msg_id
|
|
||||||
FROM ' . ATTACHMENTS_TABLE . '
|
|
||||||
WHERE ' . $this->db->sql_in_set('post_msg_id', $post_ids) . '
|
|
||||||
AND in_message = 0
|
|
||||||
AND is_orphan = 0';
|
|
||||||
$result = $this->db->sql_query($sql);
|
|
||||||
|
|
||||||
$remaining_ids = array();
|
|
||||||
while ($row = $this->db->sql_fetchrow($result))
|
|
||||||
{
|
|
||||||
$remaining_ids[] = $row['post_msg_id'];
|
|
||||||
}
|
|
||||||
$this->db->sql_freeresult($result);
|
|
||||||
|
|
||||||
// Now only unset those ids remaining
|
|
||||||
$post_ids = array_diff($post_ids, $remaining_ids);
|
|
||||||
|
|
||||||
if (sizeof($post_ids))
|
|
||||||
{
|
|
||||||
$sql = 'UPDATE ' . POSTS_TABLE . '
|
|
||||||
SET post_attachment = 0
|
|
||||||
WHERE ' . $this->db->sql_in_set('post_id', $post_ids);
|
|
||||||
$this->db->sql_query($sql);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// Update message table if messages are affected
|
|
||||||
if (sizeof($message_ids))
|
|
||||||
{
|
|
||||||
// Just check which messages are still having an assigned attachment not orphaned by querying the attachments table
|
|
||||||
$sql = 'SELECT post_msg_id
|
|
||||||
FROM ' . ATTACHMENTS_TABLE . '
|
|
||||||
WHERE ' . $this->db->sql_in_set('post_msg_id', $message_ids) . '
|
|
||||||
AND in_message = 1
|
|
||||||
AND is_orphan = 0';
|
|
||||||
$result = $this->db->sql_query($sql);
|
|
||||||
|
|
||||||
$remaining_ids = array();
|
|
||||||
while ($row = $this->db->sql_fetchrow($result))
|
|
||||||
{
|
|
||||||
$remaining_ids[] = $row['post_msg_id'];
|
|
||||||
}
|
|
||||||
$this->db->sql_freeresult($result);
|
|
||||||
|
|
||||||
// Now only unset those ids remaining
|
|
||||||
$message_ids = array_diff($message_ids, $remaining_ids);
|
|
||||||
|
|
||||||
if (sizeof($message_ids))
|
|
||||||
{
|
|
||||||
$sql = 'UPDATE ' . PRIVMSGS_TABLE . '
|
|
||||||
SET message_attachment = 0
|
|
||||||
WHERE ' . $this->db->sql_in_set('msg_id', $message_ids);
|
|
||||||
$this->db->sql_query($sql);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// Now update the topics. This is a bit trickier, because there could be posts still having attachments within the topic
|
|
||||||
if (sizeof($topic_ids))
|
|
||||||
{
|
|
||||||
// Just check which topics are still having an assigned attachment not orphaned by querying the attachments table (much less entries expected)
|
|
||||||
$sql = 'SELECT topic_id
|
|
||||||
FROM ' . ATTACHMENTS_TABLE . '
|
|
||||||
WHERE ' . $this->db->sql_in_set('topic_id', $topic_ids) . '
|
|
||||||
AND is_orphan = 0';
|
|
||||||
$result = $this->db->sql_query($sql);
|
|
||||||
|
|
||||||
$remaining_ids = array();
|
|
||||||
while ($row = $this->db->sql_fetchrow($result))
|
|
||||||
{
|
|
||||||
$remaining_ids[] = $row['topic_id'];
|
|
||||||
}
|
|
||||||
$this->db->sql_freeresult($result);
|
|
||||||
|
|
||||||
// Now only unset those ids remaining
|
|
||||||
$topic_ids = array_diff($topic_ids, $remaining_ids);
|
|
||||||
|
|
||||||
if (sizeof($topic_ids))
|
|
||||||
{
|
|
||||||
$sql = 'UPDATE ' . TOPICS_TABLE . '
|
|
||||||
SET topic_attachment = 0
|
|
||||||
WHERE ' . $this->db->sql_in_set('topic_id', $topic_ids);
|
|
||||||
$this->db->sql_query($sql);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return $num_deleted;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Set attachment IDs
|
|
||||||
*
|
|
||||||
* @param array $ids
|
|
||||||
*
|
|
||||||
* @return bool True if attachment IDs were set, false if not
|
|
||||||
*/
|
|
||||||
protected function set_attachment_ids($ids)
|
|
||||||
{
|
|
||||||
// 0 is as bad as an empty array
|
|
||||||
if (empty($ids))
|
|
||||||
{
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (is_array($ids))
|
|
||||||
{
|
|
||||||
$ids = array_unique($ids);
|
|
||||||
$this->ids = array_map('intval', $ids);
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
$this->ids = array((int) $ids);
|
|
||||||
}
|
|
||||||
|
|
||||||
return true;
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
Loading…
x
Reference in New Issue
Block a user