fix: #187 provide eav value during field cleaning

eav/forms.py

@@ -32,6 +32,7 @@ class CSVFormField(forms.Field):
 
     def __init__(self, *args, **kwargs):
         kwargs.pop('max_length', None)
+        self.separator = kwargs.pop('separator', self.default_separator)
         super().__init__(*args, **kwargs)
 
     def to_python(self, value):
@@ -39,10 +40,10 @@ class CSVFormField(forms.Field):
             return []
         return [v.strip() for v in value.split(self.separator) if v]
 
-    def validate(self, value):
-        super().validate(value)
+    def validate(self, field_value):
+        super().validate(field_value)
         try:
-            isinstance(value.split(self.separator), list)
+            isinstance(field_value, list)
         except ValidationError:
             raise ValidationError(self.message, code=self.code)
 

eav/widgets.py

@@ -21,3 +21,21 @@ class CSVWidget(Textarea):
     def render(self, name, value, **kwargs):
         value = self.prep_value(value)
         return super().render(name, value, **kwargs)
+
+    def value_from_datadict(self, data, files, name):
+        """
+        Return the value of this widget or None.
+
+        Since we're only given the value of the entity name and the data dict
+        contains the '_eav_config_cls' (which we don't have access to) as the
+        key, we need to loop through each field checking if the eav attribute
+        exists with the given 'name'.
+        """
+        widget_value = None
+        for data_value in data:
+            try:
+                widget_value = getattr(data.get(data_value), name)
+            except AttributeError:
+                pass  # noqa: WPS420
+
+        return widget_value