$fld_timestamp = false, $fld_title = false, $fld_ids = false,
$fld_sizes = false;
+ /**
+ * Generates and outputs the result of this query based upon the provided parameters.
+ */
public function execute() {
+ /* Initialize vars */
$limit = $prop = $namespace = $show = $dir = $start = $end = null;
+
+ /* Get the parameters of the request. */
extract($this->extractRequestParams());
+ /* Build our basic query. Namely, something along the lines of:
+ * SELECT * from recentchanges WHERE rc_timestamp > $start
+ * AND rc_timestamp < $end AND rc_namespace = $namespace
+ * AND rc_deleted = '0'
+ */
$this->addTables('recentchanges');
$this->addWhereRange('rc_timestamp', $dir, $start, $end);
$this->addWhereFld('rc_namespace', $namespace);
if (!is_null($show)) {
$show = array_flip($show);
- if ((isset ($show['minor']) && isset ($show['!minor'])) || (isset ($show['bot']) && isset ($show['!bot'])) || (isset ($show['anon']) && isset ($show['!anon'])))
+
+ /* Check for conflicting parameters. */
+ if ((isset ($show['minor']) && isset ($show['!minor']))
+ || (isset ($show['bot']) && isset ($show['!bot']))
+ || (isset ($show['anon']) && isset ($show['!anon']))) {
+
$this->dieUsage("Incorrect parameter - mutually exclusive values may not be supplied", 'show');
+ }
+ /* Add additional conditions to query depending upon parameters. */
$this->addWhereIf('rc_minor = 0', isset ($show['!minor']));
$this->addWhereIf('rc_minor != 0', isset ($show['minor']));
$this->addWhereIf('rc_bot = 0', isset ($show['!bot']));
$this->addWhereIf('rc_user != 0', isset ($show['!anon']));
}
+ /* Add the fields we're concerned with to out query. */
$this->addFields(array (
'rc_timestamp',
'rc_namespace',
'rc_moved_to_title'
));
+ /* Determine what properties we need to display. */
if (!is_null($prop)) {
$prop = array_flip($prop);
+ /* Set up internal members based upon params. */
$this->fld_comment = isset ($prop['comment']);
$this->fld_user = isset ($prop['user']);
$this->fld_flags = isset ($prop['flags']);
$this->fld_title = isset ($prop['title']);
$this->fld_ids = isset ($prop['ids']);
$this->fld_sizes = isset ($prop['sizes']);
-
+
+ /* Add fields to our query if they are specified as a needed parameter. */
$this->addFieldsIf('rc_id', $this->fld_ids);
$this->addFieldsIf('rc_cur_id', $this->fld_ids);
$this->addFieldsIf('rc_this_oldid', $this->fld_ids);
$this->addFieldsIf('rc_new_len', $this->fld_sizes);
}
+ /* Specify the limit for our query. It's $limit+1 because we (possibly) need to
+ * generate a "continue" parameter, to allow paging. */
$this->addOption('LIMIT', $limit +1);
+
+ /* Specify the index to use in the query as rc_timestamp, instead of rc_revid (default). */
$this->addOption('USE INDEX', 'rc_timestamp');
$data = array ();
$count = 0;
+
+ /* Perform the actual query. */
$db = $this->getDB();
$res = $this->select(__METHOD__);
-
+
+ /* Iterate through the rows, adding data extracted from them to our query result. */
while ($row = $db->fetchObject($res)) {
if (++ $count > $limit) {
// We've reached the one extra which shows that there are additional pages to be had. Stop here...
break;
}
+ /* Extract the data from a single row. */
$vals = $this->extractRowInfo($row);
+
+ /* Add that row's data to our final output. */
if($vals)
$data[] = $vals;
}
+
$db->freeResult($res);
+ /* Format the result */
$result = $this->getResult();
$result->setIndexedTagName($data, 'rc');
$result->addValue('query', $this->getModuleName(), $data);
}
+ /**
+ * Extracts from a single sql row the data needed to describe one recent change.
+ *
+ * @param $row The row from which to extract the data.
+ * @return An array mapping strings (descriptors) to their respective string values.
+ * @access private
+ */
private function extractRowInfo($row) {
+ /* If page was moved somewhere, get the title of the move target. */
$movedToTitle = false;
if (!empty($row->rc_moved_to_title))
$movedToTitle = Title :: makeTitle($row->rc_moved_to_ns, $row->rc_moved_to_title);
+ /* Determine the title of the page that has been changed. */
$title = Title :: makeTitle($row->rc_namespace, $row->rc_title);
+
+ /* Our output data. */
$vals = array ();
$type = intval ( $row->rc_type );
default: $vals['type'] = $type;
}
+ /* Create a new entry in the result for the title. */
if ($this->fld_title) {
ApiQueryBase :: addTitleInfo($vals, $title);
if ($movedToTitle)
ApiQueryBase :: addTitleInfo($vals, $movedToTitle, "new_");
}
+ /* Add ids, such as rcid, pageid, revid, and oldid to the change's info. */
if ($this->fld_ids) {
$vals['rcid'] = intval($row->rc_id);
$vals['pageid'] = intval($row->rc_cur_id);
$vals['old_revid'] = intval( $row->rc_last_oldid );
}
+ /* Add user data and 'anon' flag, if use is anonymous. */
if ($this->fld_user) {
$vals['user'] = $row->rc_user_text;
if(!$row->rc_user)
$vals['anon'] = '';
}
+ /* Add flags, such as new, minor, bot. */
if ($this->fld_flags) {
if ($row->rc_bot)
$vals['bot'] = '';
$vals['minor'] = '';
}
+ /* Add sizes of each revision. (Only available on 1.10+) */
if ($this->fld_sizes) {
$vals['oldlen'] = intval($row->rc_old_len);
$vals['newlen'] = intval($row->rc_new_len);
}
-
+
+ /* Add the timestamp. */
if ($this->fld_timestamp)
$vals['timestamp'] = wfTimestamp(TS_ISO_8601, $row->rc_timestamp);
+ /* Add edit summary / log summary. */
if ($this->fld_comment && !empty ($row->rc_comment)) {
$vals['comment'] = $row->rc_comment;
}