Temporary fix for missing coverart for seasons from ttvdb.py

If ttvdb.py does not return any coverart for specific seasons,
use the global coverart from series and patch the xml output.

mythtv/programs/scripts/metadata/Television/ttvdb.py

@@ -2154,6 +2154,18 @@ def displaySeriesXML(tvdb_api, series_season_ep):
 
     tvdbQueryXslt = etree.XSLT(etree.parse(u'%s%s' % (tvdb_api.baseXsltDir, u'tvdbVideo.xsl')))
     items = tvdbQueryXslt(allDataElement)
+
+    # temporary fix for missing coverart: use global coverart from series
+    if len(items.xpath("//image[@type='coverart']")) == 0:
+        for el in allDataElement.iter("series"):
+            glob_poster = el.find("poster")
+            if glob_poster is not None:
+                glob_url = glob_poster.text
+                glob_thumb = glob_url.replace("posters", "_cache/posters")
+                glob_coverart = etree.Element("image", type = "coverart", url = glob_url, thumb = glob_thumb)
+                items.find("item").find("images").append(glob_coverart)
+                break
+
     if items.getroot() is not None:
         if len(items.xpath('//item')):
             sys.stdout.write(etree.tostring(items, encoding='UTF-8', method="xml", xml_declaration=True, pretty_print=True, ))