Make it possible to get a RedPage-Object by pageid

When working on redfams it is necessary to have information about redpage

Related Task: [https://fs.golderweb.de/index.php?do=details&task_id=26 FS#26]

lib/redpage.py

@@ -39,19 +39,22 @@ class RedPage:
     Class for handling redundance discussion pages and archives
     """
 
-    def __init__( self, page, archive=False ):
+    def __init__( self, page=None, pageid=None, archive=False ):
         """
         Generate a new RedPage object based on the given pywikibot page object
 
-        @param    page    page    Pywikibot/MediaWiki page object for page
+        @param  page  Pywikibot/MediaWiki page object for page
+        @type  page  pywikibot.Page
+        @param  pageid  MW-Pageid for related page
+        @type  pageid  int
         """
 
         # Safe the pywikibot page object
         self.page = page
+        self.pageid = pageid
         self._archive = archive
 
         self.__handle_db( )
-
         self.is_page_changed()
 
         self._parsed = None
@@ -62,7 +65,16 @@ class RedPage:
         """
 
         # We need a connection to our mysqldb
-        self.__mysql = MysqlRedPage( self.page._pageid )
+        if self.page:
+            self.__mysql = MysqlRedPage( self.page._pageid )
+            self.pageid = self.page._pageid
+        elif self.pageid:
+            self.__mysql = MysqlRedPage( self.pageid )
+            self.page = pywikibot.Page( pywikibot.Site(),
+                                        self.__mysql.data['page_title'] )
+            self.page.exists()
+        else:
+            raise ValueError( "Page NOR pagid provided!" )
 
         if not self.__mysql.data:
             self.__mysql.add_page( self.page.title(), self.page._revid )