basic support for bulk editing.

src/documents/bulk_edit.py

@@ -0,0 +1,39 @@
+from documents.models import Document
+
+
+methods_supported = [
+    "set_correspondent"
+]
+
+
+def validate_data(data):
+    if 'ids' not in data or not isinstance(data['ids'], list):
+        raise ValueError()
+    ids = data['ids']
+    if not all([isinstance(i, int) for i in ids]):
+        raise ValueError()
+    count = Document.objects.filter(pk__in=ids).count()
+    if not count == len(ids):
+        raise Document.DoesNotExist()
+
+    if 'method' not in data or not isinstance(data['method'], str):
+        raise ValueError()
+    method = data['method']
+    if method not in methods_supported:
+        raise ValueError()
+
+    if 'args' not in data or not isinstance(data['args'], list):
+        raise ValueError()
+    parameters = data['args']
+
+    return ids, method, parameters
+
+
+def perform_bulk_edit(data):
+    ids, method, args = validate_data(data)
+
+    getattr(__file__, method)(ids, args)
+
+
+def set_correspondent(ids, args):
+    print("WOW")