fix for #67

modules/builder.py

@@ -54,10 +54,7 @@ class CollectionBuilder:
                             if template["default"]:
                                 if isinstance(template["default"], dict):
                                     for dv in template["default"]:
-                                        if template["default"][dv]:
                                         default[dv] = template["default"][dv]
-                                        else:
-                                            raise Failed(f"Collection Error: template default sub-attribute {dv} is blank")
                                 else:
                                     raise Failed("Collection Error: template sub-attribute default is not a dictionary")
                             else:
@@ -75,12 +72,15 @@ class CollectionBuilder:
                                             txt = txt.replace("<<collection_name>>", str(self.name))
                                         for dm in default:
                                             if f"<<{dm}>>" in txt:
+                                                if default[dm] is None:
+                                                    raise Failed(f"template default {dm} is blank")
                                                 txt = txt.replace(f"<<{dm}>>", str(default[dm]))
                                         if txt in ["true", "True"]:                     return True
                                         elif txt in ["false", "False"]:                 return False
                                         else:
                                             try:                                            return int(txt)
                                             except ValueError:                              return txt
+                                    try:
                                         if isinstance(template[m], dict):
                                             attr = {}
                                             for sm in template[m]:
@@ -103,6 +103,8 @@ class CollectionBuilder:
                                                     attr.append(replace_txt(li))
                                         else:
                                             attr = replace_txt(template[m])
+                                    except Failed:
+                                        continue
                                     self.data[m] = attr
                                 else:
                                     raise Failed(f"Collection Error: template attribute {m} is blank")