From: Harishankar <v.harishankar@gmail.com>
Date: Thu, 2 Dec 2010 06:04:54 +0000 (+0530)
Subject: Added some error checks for sanity
X-Git-Url: https://harishankar.org/repos/?p=biaweb_qt.git;a=commitdiff_plain;h=3ded989fee52f6804d0f8b5b5c0847a9030c7f04;hp=3ded989fee52f6804d0f8b5b5c0847a9030c7f04

Added some error checks for sanity

Added some error checks for sanity.
* Check whether database is valid or not. If not valid, then
  simply reset current database to None so that no other dialog
  can be invoked.
* Check for articles existing before exporting. Makes no sense
  to create a website without any articles.
* Other checks to avoid exceptions when invalid database is
  loaded.
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