Bible search fix:

* Add feedback
* cater for partial file-based bibles
* Prevent an uncaught exception

openlp/plugins/bibles/lib/db.py

@@ -29,8 +29,9 @@ import chardet
 import re
 
 from sqlalchemy import or_
-from PyQt4 import QtCore
+from PyQt4 import QtCore, QtGui
 
+from openlp.core.lib import translate
 from openlp.plugins.bibles.lib.models import *
 
 log = logging.getLogger(__name__)
@@ -312,6 +313,14 @@ class BibleDB(QtCore.QObject):
                     .order_by(Verse.verse)\
                     .all()
                 verse_list.extend(verses)
+            else:
+                log.debug(u'OpenLP failed to find book %s', book)
+                QtGui.QMessageBox.information(self.bible_plugin.media_item,
+                    translate(u'BibleDB', u'Book not found'),
+                    translate(u'BibleDB', u'The book you requested could not '
+                        u'be found in this bible.  Please check your spelling '
+                        u'and that this is a complete bible not just one '
+                        u'testament.'))
         return verse_list
 
     def verse_search(self, text):
@@ -383,4 +392,3 @@ class BibleDB(QtCore.QObject):
         log.debug(u'...............................Verses ')
         verses = self.session.query(Verse).all()
         log.debug(verses)
-