add comparison of datetime objects with strings

kontor-scripts/import.py

@@ -3,7 +3,7 @@ import data from json file to PostgreSQL
 """
 from argparse import ArgumentParser, ArgumentDefaultsHelpFormatter
 
-from datetime import datetime
+from datetime import datetime, date
 from typing import Any, AnyStr, Dict, List
 import os
 import json
@@ -62,13 +62,9 @@ def get_ids(items: List[Any]) -> List[AnyStr]:
 def update_item(db: Session, import_data: Dict[AnyStr, Any], item: Any, dry_run: bool, log):
     for (key, value) in import_data.items():
         existing_value = getattr(item, str(key))
-        update: bool = False
-        if isinstance(existing_value, datetime):
-            if str(existing_value) != str(value):
-                update = True
-        else:
-            if existing_value != value:
-                update = True
+        update: bool = has_changed(existing_value, value, log)
+        #if key == 'published_on':
+        #    log.info(f"{type(value)}:{value} != {type(existing_value)}:{existing_value} : {update}")
         if update:
             log.info(f"update {key}({existing_value}) with {value}")
             if not dry_run:
@@ -79,6 +75,24 @@ def update_item(db: Session, import_data: Dict[AnyStr, Any], item: Any, dry_run:
                 db.add(item)
                 db.commit()
 
+def has_changed(existing_data: Any, import_data: AnyStr, log) -> bool:
+    if existing_data is None and import_data == 'None':
+        return False
+    if isinstance(existing_data, str):
+        return existing_data != import_data
+    if isinstance(existing_data, date):
+        if len(import_data) > 19:
+            import_date = datetime.strptime(import_data, "%Y-%m-%d %H:%M:%S.%f")
+            log.debug(f"{type(existing_data)}:{existing_data} == {import_date} : {existing_data != import_date}")
+            return existing_data != import_date
+        if len(import_data) > 10:
+            import_date = datetime.strptime(import_data, "%Y-%m-%d %H:%M:%S")
+            log.debug(f"{type(existing_data)}:{existing_data} == {import_date} : {existing_data != import_date}")
+            return existing_data != import_date
+        return existing_data.strftime("%Y-%m-%d") != import_data
+    return existing_data != import_data
+
+
 def item_import(db: Session, import_data: Dict[AnyStr, Any], dry_run: bool, log):
     log.info(f"import {import_data}")
     if not dry_run: