Clean up files and correct mapper issues

Update Author Delete UI State

bzr-revno: 282

openlp/plugins/songs/forms/authorsform.py

@@ -40,7 +40,6 @@ class AuthorsForm(QDialog, Ui_AuthorsDialog):
         self.AuthorListView.setColumnHidden(0, True)
         self.AuthorListView.setColumnWidth(1, 300)
         self.AuthorListView.setHorizontalHeaderLabels(QtCore.QStringList([" ","Author"])) 
-        self.candelete = False
         self.currentrow = 0
         self.author = None
         
@@ -72,7 +71,6 @@ class AuthorsForm(QDialog, Ui_AuthorsDialog):
         """
         Delete the author is the Author is not attached to any songs
         """
-        if self.candelete == True:
         self.songmanager.delete_author(self.author.id)
         self.on_ClearButton_clicked()
         self.load_form()            
@@ -101,13 +99,14 @@ class AuthorsForm(QDialog, Ui_AuthorsDialog):
         self.FirstNameEdit.setText("")
         self.LastNameEdit.setText("")
         self.MessageLabel.setText("")
-        self.candelete = True
+        self.DeleteButton.setEnabled(True)                    
         self.author = None
     
     @pyqtSignature("QTableWidgetItem*")
     def on_AuthorListView_itemClicked(self, item):
         """
-        Slot documentation goes here.
+        An Author has been selected display it
+        If the author is attached to a Song prevent delete
         """
         self.currentrow = self.AuthorListView.currentRow()
         id = int(self.AuthorListView.item(self.currentrow, 0).text())
@@ -119,8 +118,7 @@ class AuthorsForm(QDialog, Ui_AuthorsDialog):
         songs = self.songmanager.get_song_authors_for_author(id)
         if len(songs) > 0:
             self.MessageLabel.setText("Author in use 'Delete' is disabled")
-            self.candelete = False
+            self.DeleteButton.setEnabled(False)
         else:
             self.MessageLabel.setText("Author is not used")
-            self.candelete = True
+            self.DeleteButton.setEnabled(True) 
-

openlp/plugins/songs/forms/editsongform.py

@@ -27,7 +27,7 @@ from songbookform import SongBookForm
 
 from editsongdialog import Ui_EditSongDialog
 
-from openlp.plugins.songs.lib.songtable import Author
+from openlp.plugins.songs.lib.songtable import *
 
 class EditSongForm(QWidget, Ui_EditSongDialog):
     """

openlp/plugins/songs/lib/songDBimpl.py

@@ -26,10 +26,11 @@ import string
 from sqlalchemy import  *
 from sqlalchemy.sql import select
 from sqlalchemy import create_engine
-from sqlalchemy.orm import scoped_session, sessionmaker, mapper, relation, clear_mappers
+from sqlalchemy.orm import scoped_session, sessionmaker
+
+from openlp.plugins.songs.lib.songtables import *
+from openlp.plugins.songs.lib.songclasses import *
 
-from openlp.plugins.songs.lib.tables import *
-from openlp.plugins.songs.lib.classes import *
 from openlp.core.utils import ConfigHelper
 
 class SongDBException(Exception):
@@ -37,17 +38,6 @@ class SongDBException(Exception):
 class SongInvalidDatabaseError(Exception):
     pass
     
-clear_mappers()  # some reason we need this
-mapper(Author, authors_table)
-mapper(Book, song_books_table)
-mapper(Song, songs_table,
-       properties={'authors': relation(Author, backref='songs',
-                                       secondary=authors_songs_table),
-                   'book': relation(Book, backref='songs'),
-                   'topics': relation(Topic, backref='songs',
-                                      secondary=songs_topics_table)})
-mapper(Topic, topics_table)        
-
 class SongDBImpl():
     global log     
     log=logging.getLogger("SongDBImpl")
@@ -118,7 +108,7 @@ class SongDBImpl():
         
     def delete_author(self, authorid):
         log.debug( "delete_author %s" ,  authorid) 
-#        metadata.bind.echo = True
+        metadata.bind.echo = True
 #        s = text (""" delete FROM authors where authorid = :i """)
 #        return self.db.execute(s, i=authorid)
         session = self.Session()
@@ -126,6 +116,7 @@ class SongDBImpl():
         session.delete(author)
         session.commit()
  
+        
     def update_author(self, authorid, author_name, first_name, last_name):
         log.debug( "update_author %s,%s,%s,%s" ,  authorid, author_name, first_name, last_name) 
         metadata.bind.echo = True

openlp/plugins/songs/lib/songclasses.py

@@ -16,6 +16,8 @@ You should have received a copy of the GNU General Public License along with
 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 Place, Suite 330, Boston, MA 02111-1307 USA
 """
+from sqlalchemy.orm import mapper, relation
+from openlp.plugins.songs.lib.tables import *
 
 class BaseModel(object):
     """
@@ -56,3 +58,14 @@ class Topic(BaseModel):
     Topic model
     """
     pass
+
+
+mapper(Author, authors_table)
+mapper(Book, song_books_table)
+mapper(Song, songs_table,
+       properties={'authors': relation(Author, backref='songs',
+                                       secondary=authors_songs_table),
+                   'book': relation(Book, backref='songs'),
+                   'topics': relation(Topic, backref='songs',
+                                      secondary=songs_topics_table)})
+mapper(Topic, topics_table)   

openlp/plugins/songs/lib/songtable.py

@@ -1,31 +0,0 @@
-"""
-OpenLP - Open Source Lyrics Projection
-Copyright (c) 2008 Raoul Snyman
-Portions copyright (c) 2008 Martin Thompson, Tim Bentley
-
-This program is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free Software
-Foundation; version 2 of the License.
-
-This program is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-PARTICULAR PURPOSE. See the GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along with
-this program; if not, write to the Free Software Foundation, Inc., 59 Temple
-Place, Suite 330, Boston, MA 02111-1307 USA
-"""
-class Author(object):
-    def __init__(self, authorname, first_name, last_name):
-        self.authorname =authorname
-        self.first_name =first_name
-        self.last_name =last_name                
-        
-    def __repr__(self):
-        return "<authormeta(%r,%r,%r)>"  %(self.authorname, self.first_name, self.last_name)
-        
-    def get_author(self):
-        return self.authorname, self.first_name, self.last_name
-        
-    def get_author_name(self):
-        return self.authorname

openlp/plugins/songs/songsplugin.py

@@ -26,7 +26,7 @@ from openlp.core.lib import Plugin,PluginUtils,  MediaManagerItem
 from forms import EditSongForm, OpenLPImportForm, OpenSongImportForm, \
                   OpenLPExportForm, OpenSongExportForm
 from openlp.plugins.songs.lib import SongManager
-from openlp.plugins.songs.lib.classes import *
+from openlp.plugins.songs.lib.songclasses import *
 
 class SongsPlugin(Plugin, PluginUtils):
     global log