/**
* Insert a new revision into the database, returning the new revision ID
* number on success and dies horribly on failure.
*
* @param Database $dbw
* @return int
*/
function insertOn(&$dbw)
{
global $wgDefaultExternalStore;
$fname = 'Revision::insertOn';
wfProfileIn($fname);
$data = $this->mText;
$flags = Revision::compressRevisionText($data);
# Write to external storage if required
if ($wgDefaultExternalStore) {
if (is_array($wgDefaultExternalStore)) {
// Distribute storage across multiple clusters
$store = $wgDefaultExternalStore[mt_rand(0, count($wgDefaultExternalStore) - 1)];
} else {
$store = $wgDefaultExternalStore;
}
require_once 'ExternalStore.php';
// Store and get the URL
$data = ExternalStore::insert($store, $data);
if (!$data) {
# This should only happen in the case of a configuration error, where the external store is not valid
throw new MWException("Unable to store text to external storage {$store}");
}
if ($flags) {
$flags .= ',';
}
$flags .= 'external';
}
# Record the text (or external storage URL) to the text table
if (!isset($this->mTextId)) {
$old_id = $dbw->nextSequenceValue('text_old_id_val');
$dbw->insert('text', array('old_id' => $old_id, 'old_text' => $data, 'old_flags' => $flags), $fname);
$this->mTextId = $dbw->insertId();
}
# Record the edit in revisions
$rev_id = isset($this->mId) ? $this->mId : $dbw->nextSequenceValue('rev_rev_id_val');
$dbw->insert('revision', array('rev_id' => $rev_id, 'rev_page' => $this->mPage, 'rev_text_id' => $this->mTextId, 'rev_comment' => $this->mComment, 'rev_minor_edit' => $this->mMinorEdit ? 1 : 0, 'rev_user' => $this->mUser, 'rev_user_text' => $this->mUserText, 'rev_timestamp' => $dbw->timestamp($this->mTimestamp), 'rev_deleted' => $this->mDeleted), $fname);
$this->mId = !is_null($rev_id) ? $rev_id : $dbw->insertId();
wfProfileOut($fname);
return $this->mId;
}
