1 files changed, 100 insertions, 0 deletions
diff --git a/maintenance/storage/resolveStubs.php b/maintenance/storage/resolveStubs.php
new file mode 100644
index 00000000..e93d5c97
--- /dev/null
+++ b/maintenance/storage/resolveStubs.php
@@ -0,0 +1,100 @@
+<?php
+
+define( 'REPORTING_INTERVAL', 100 );
+
+if ( !defined( 'MEDIAWIKI' ) ) {
+	$optionsWithArgs = array( 'm' );
+
+	require_once( '../commandLine.inc' );
+	require_once( 'includes/ExternalStoreDB.php' );
+
+	resolveStubs();
+}
+
+/**
+ * Convert history stubs that point to an external row to direct
+ * external pointers
+ */
+function resolveStubs() {
+	$fname = 'resolveStubs';
+
+	$dbr =& wfGetDB( DB_SLAVE );
+	$dbw =& wfGetDB( DB_MASTER );
+	$maxID = $dbr->selectField( 'text', 'MAX(old_id)', false, $fname );
+	$blockSize = 10000;
+	$numBlocks = intval( $maxID / $blockSize ) + 1;
+
+	for ( $b = 0; $b < $numBlocks; $b++ ) {
+		wfWaitForSlaves( 5 );
+		
+		printf( "%5.2f%%\n", $b / $numBlocks * 100 );
+		$start = intval($maxID / $numBlocks) * $b + 1;
+		$end = intval($maxID / $numBlocks) * ($b + 1);
+		$stubs = array();
+		$flagsArray = array();
+
+		
+		$res = $dbr->select( 'text', array( 'old_id', 'old_text', 'old_flags' ),
+			"old_id>=$start AND old_id<=$end " .
+			# Using a more restrictive flag set for now, until I do some more analysis -- TS
+			#"AND old_flags LIKE '%object%' AND old_flags NOT LIKE '%external%' ".
+			
+			"AND old_flags='object' " .
+			"AND old_text LIKE 'O:15:\"historyblobstub\"%'", $fname );
+		while ( $row = $dbr->fetchObject( $res ) ) {
+			resolveStub( $row->old_id, $row->old_text, $row->old_flags );
+		}
+		$dbr->freeResult( $res );
+
+		
+	}
+	print "100%\n";
+}
+
+/**
+ * Resolve a history stub
+ */
+function resolveStub( $id, $stubText, $flags ) {
+	$fname = 'resolveStub';
+
+	$stub = unserialize( $stubText );
+	$flags = explode( ',', $flags );
+
+	$dbr =& wfGetDB( DB_SLAVE );
+	$dbw =& wfGetDB( DB_MASTER );
+
+	if ( strtolower( get_class( $stub ) ) !== 'historyblobstub' ) {
+		print "Error found object of class " . get_class( $stub ) . ", expecting historyblobstub\n";
+		return;
+	}
+
+	# Get the (maybe) external row
+	$externalRow = $dbr->selectRow( 'text', array( 'old_text' ),
+		array( 'old_id' => $stub->mOldId, "old_flags LIKE '%external%'" ),
+		$fname
+	);
+
+	if ( !$externalRow ) {
+		# Object wasn't external
+		return;
+	}
+
+	# Preserve the legacy encoding flag, but switch from object to external
+	if ( in_array( 'utf-8', $flags ) ) {
+		$newFlags = 'external,utf-8';
+	} else {
+		$newFlags = 'external';
+	}
+
+	# Update the row
+	$dbw->update( 'text',
+		array( /* SET */
+			'old_flags' => $newFlags,
+			'old_text' => $externalRow->old_text . '/' . $stub->mHash
+		),
+		array( /* WHERE */
+			'old_id' => $id
+		), $fname
+	);
+}
+?>