fix empty cloze check

anki/collection.py

@@ -497,6 +497,12 @@ where c.nid = n.id and c.id in %s group by nid""" % ids2str(cids)):
             html = anki.template.render(format, fields)
             d[type] = runFilter(
                 "mungeQA", html, type, fields, model, data, self)
+            # empty cloze?
+            if type == 'q' and model['type'] == MODEL_CLOZE:
+                if not self.models._availClozeOrds(model, data[6], False):
+                    d['q'] += ("<p>" + _(
+                "Please edit this note and add some cloze deletions. (%s)") % (
+                "<a href=%s#cloze>%s</a>" % (HELP_SITE, _("help"))))
         return d
 
     def _qaData(self, where=""):

anki/models.py

@@ -532,7 +532,7 @@ select id from notes where mid = ?)""" % " ".join(map),
             avail.append(ord)
         return avail
 
-    def _availClozeOrds(self, m, flds):
+    def _availClozeOrds(self, m, flds, allowEmpty=True):
         sflds = splitFields(flds)
         map = self.fieldMap(m)
         ords = set()
@@ -544,7 +544,7 @@ select id from notes where mid = ?)""" % " ".join(map),
                 "{{c(\d+)::[^}]*?}}", sflds[ord])])
         if -1 in ords:
             ords.remove(-1)
-        if not ords:
+        if not ords and allowEmpty:
             # empty clozes use first ord
             return [0]
         return list(ords)

anki/template/template.py

@@ -4,7 +4,6 @@ import collections
 from anki.utils import stripHTML
 from anki.hooks import runFilter
 from anki.template import furigana; furigana.install()
-from anki.consts import HELP_SITE
 from anki.lang import _
 
 clozeReg = r"\{\{c%s::(.*?)(::(.*?))?\}\}"
@@ -198,11 +197,7 @@ class Template(object):
         reg = clozeReg
         m = re.search(reg%ord, txt)
         if not m:
-            # cloze doesn't exist; return whole text
-            return (txt + "<p><font size=2>" + _(
-                "No cloze deletions found; showing whole field. (%s)") % (
-                    "<a href=%s#cloze>%s</a>" % (HELP_SITE, _("help"))) +
-                    "</font>")
+            return ""
         # replace chosen cloze with type
         if type == "q":
             if m.group(3):