Remove source field from creation endpoints

arkindex/documents/serializers/elements.py

@@ -338,12 +338,11 @@ class ElementCreateSerializer(ElementLightSerializer):
         help_text='Set the polygon linking this element to the image. '
                   '`image` must be set when this field is set. Defaults to a rectangle taking up the whole image.',
     )
-    source = DataSourceSlugField(tool_type=MLToolType.DLAnalyser, required=False)
     worker_version = serializers.PrimaryKeyRelatedField(queryset=WorkerVersion.objects.all(), required=False, allow_null=True)
 
     class Meta(ElementLightSerializer.Meta):
         model = Element
-        fields = ElementLightSerializer.Meta.fields + ('image', 'corpus', 'parent', 'polygon', 'source', 'worker_version')
+        fields = ElementLightSerializer.Meta.fields + ('image', 'corpus', 'parent', 'polygon', 'worker_version')
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -379,10 +378,6 @@ class ElementCreateSerializer(ElementLightSerializer):
             # will lead to many errors everywhere as this would create impossible polygons
             errors['image'].append('This image does not have valid dimensions.')
 
-        if data.get('source') and data.get('worker_version'):
-            errors['source'].append('You can only refer to a DataSource XOR a WorkerVersion on an element')
-            errors['worker_version'].append('You can only refer to a DataSource XOR a WorkerVersion on an element')
-
         if errors:
             raise ValidationError(errors)
         return data