From e35860a2b2ca314c6540c5600309bea97006709c Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sun, 10 Apr 2011 13:58:05 -0600
Subject: [PATCH] Fix #756807 (unhandled exception when creating catalogs in
 EPUB or MOBI format)

---
 src/calibre/gui2/catalog/catalog_epub_mobi.py |  5 +++-
 .../gui2/preferences/metadata_sources.py      | 29 ++++++++++++++++++-
 2 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/src/calibre/gui2/catalog/catalog_epub_mobi.py b/src/calibre/gui2/catalog/catalog_epub_mobi.py
index d5149569be..8af72e51c0 100644
--- a/src/calibre/gui2/catalog/catalog_epub_mobi.py
+++ b/src/calibre/gui2/catalog/catalog_epub_mobi.py
@@ -193,7 +193,10 @@ class PluginWidget(QWidget,Ui_Form):
         opts_dict['header_note_source_field'] = self.header_note_source_field_name
 
         # Append the output profile
-        opts_dict['output_profile'] = [load_defaults('page_setup')['output_profile']]
+        try:
+            opts_dict['output_profile'] = [load_defaults('page_setup')['output_profile']]
+        except:
+            opts_dict['output_profile'] = ['default']
         if False:
             print "opts_dict"
             for opt in sorted(opts_dict.keys()):
diff --git a/src/calibre/gui2/preferences/metadata_sources.py b/src/calibre/gui2/preferences/metadata_sources.py
index a912e6f956..66fd35e038 100644
--- a/src/calibre/gui2/preferences/metadata_sources.py
+++ b/src/calibre/gui2/preferences/metadata_sources.py
@@ -9,7 +9,7 @@ __docformat__ = 'restructuredtext en'
 
 from operator import attrgetter
 
-from PyQt4.Qt import (QAbstractTableModel, Qt)
+from PyQt4.Qt import (QAbstractTableModel, Qt, QAbstractListModel)
 
 from calibre.gui2.preferences import ConfigWidgetBase, test_widget
 from calibre.gui2.preferences.metadata_sources_ui import Ui_Form
@@ -125,6 +125,29 @@ class SourcesModel(QAbstractTableModel): # {{{
 
 # }}}
 
+class FieldsModel(QAbstractListModel): # {{{
+
+    def __init__(self, parent=None):
+        QAbstractTableModel.__init__(self, parent)
+
+        self.fields = []
+
+    def rowCount(self, parent=None):
+        return len(self.fields)
+
+    def initialize(self):
+        fields = set()
+        for p in all_metadata_plugins():
+            fields |= p.touched_fields
+        self.fields = []
+        for x in fields:
+            if not x.startswith('identifiers:'):
+                self.fields.append(x)
+        self.reset()
+
+
+# }}}
+
 class ConfigWidget(ConfigWidgetBase, Ui_Form):
 
     def genesis(self, gui):
@@ -139,6 +162,10 @@ class ConfigWidget(ConfigWidgetBase, Ui_Form):
         self.sources_view.setModel(self.sources_model)
         self.sources_model.dataChanged.connect(self.changed_signal)
 
+        self.fields_model = FieldsModel(self)
+        self.fields_view.setModel(self.fields_model)
+        self.fields_model.dataChanged.connect(self.changed_signal)
+
     def configure_plugin(self):
         pass