Enable server to alternatively output response ctx as JSON, for debugging and testing...

[plomtask] / plomtask / versioned_attributes.py

diff --git a/plomtask/versioned_attributes.py b/plomtask/versioned_attributes.py
index d3c364942e3d76edf0eb9618df8366866c603709..b7e54e287f9844fe9cc910dcf53ac15cc1a8421e 100644 (file)
--- a/plomtask/versioned_attributes.py
+++ b/plomtask/versioned_attributes.py
@@ -19,6 +19,20 @@ class VersionedAttribute:
         self.default = default
         self.history: dict[str, str | float] = {}
 
+    def __hash__(self) -> int:
+        history_tuples = tuple((k, v) for k, v in self.history.items())
+        hashable = (self.parent.id_, self.table_name, self.default,
+                    history_tuples)
+        return hash(hashable)
+
+    @property
+    def as_dict(self) -> dict[str, object]:
+        """Return self as (json.dumps-coompatible) dict."""
+        d = {'parent_process_id': self.parent.id_,
+             'table_name': self.table_name,
+             'history': self.history}
+        return d
+
     @property
     def _newest_timestamp(self) -> str:
         """Return most recent timestamp."""