[#56] Avoid empty list in spatial resolution

ckanext/dcat/profiles/base.py

@@ -713,7 +713,7 @@ def _read_list_value(self, value):
         # List of values
         if isinstance(value, list):
             items = value
-        elif isinstance(value, str):
+        elif value and isinstance(value, str):
             try:
                 items = json.loads(value)
                 if isinstance(items, ((int, float, complex))):

ckanext/dcat/validators.py

@@ -86,7 +86,7 @@ def _scheming_multiple_number(key, data, errors, context):
             return
 
         value = data[key]
-        if value is not missing:
+        if value and value is not missing:
 
             if not isinstance(value, list):
                 if isinstance(value, str) and value.startswith("["):