Fix for potential bad episode airdates preventing SR from starting.

gui/slick/interfaces/default/home.tmpl

@@ -30,7 +30,7 @@
 #set $sql_statement += ' OR (status IN ' + status_quality + ') OR (status IN ' + status_download + '))) AS ep_total, '
 
 #set $sql_statement += ' (SELECT airdate FROM tv_episodes WHERE showid=tv_eps.showid AND airdate >= ' + $today + ' AND (status = ' + str($UNAIRED) + ' OR status = ' + str($WANTED) + ') ORDER BY airdate ASC LIMIT 1) AS ep_airs_next, '
-#set $sql_statement += ' (SELECT airdate FROM tv_episodes WHERE showid=tv_eps.showid AND airdate <> 1 AND status <> ' + str($UNAIRED) + ' ORDER BY airdate DESC LIMIT 1) AS ep_airs_prev '
+#set $sql_statement += ' (SELECT airdate FROM tv_episodes WHERE showid=tv_eps.showid AND airdate > 1 AND status <> ' + str($UNAIRED) + ' ORDER BY airdate DESC LIMIT 1) AS ep_airs_prev '
 #set $sql_statement += ' FROM tv_episodes tv_eps GROUP BY showid'
 
 #set $sql_result = $myDB.select($sql_statement)

sickbeard/databases/mainDB.py

@@ -38,6 +38,7 @@ class MainSanityCheck(db.DBSanityCheck):
         self.fix_unaired_episodes()
         self.fix_tvrage_show_statues()
         self.fix_episode_statuses()
+        self.fix_invalid_airdates()
 
     def fix_duplicate_shows(self, column='indexer_id'):
 
@@ -176,6 +177,20 @@ class MainSanityCheck(db.DBSanityCheck):
         else:
             logger.log(u"No MALFORMED episode statuses, check passed", logger.DEBUG)
 
+    def fix_invalid_airdates(self):
+
+        sqlResults = self.connection.select(
+            "SELECT episode_id, showid FROM tv_episodes WHERE airdate >= ? OR airdate < 1",
+            [datetime.date.max.toordinal()])
+
+        for bad_airdate in sqlResults:
+            logger.log(u"Bad episode airdate detected! episode_id: " + str(bad_airdate["episode_id"]) + " showid: " + str(
+                bad_airdate["showid"]), logger.DEBUG)
+            logger.log(u"Fixing bad episode airdate for episode_id: " + str(bad_airdate["episode_id"]))
+            self.connection.action("UPDATE tv_episodes SET airdate = '1' WHERE episode_id = ?", [bad_airdate["episode_id"]])
+
+        else:
+            logger.log(u"No bad episode airdates, check passed", logger.DEBUG)
 
 def backupDatabase(version):
     logger.log(u"Backing up database before upgrade")