From b4758fb52b933c0eedc2f314ec9b5ea3fc3c8e29 Mon Sep 17 00:00:00 2001
From: Daniel Mach <daniel.mach@suse.com>
Date: Mon, 8 Sep 2025 09:53:47 +0200
Subject: [PATCH] Add BaseModel.from_string() and BaseModel.to_string() methods

---
 osc/util/models.py | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/osc/util/models.py b/osc/util/models.py
index 6f18faef..e87fb238 100644
--- a/osc/util/models.py
+++ b/osc/util/models.py
@@ -485,6 +485,26 @@ class BaseModel(metaclass=ModelMeta):
             # we prefer key ordering according to the fields in the model
             json.dump(self.dict(), f, sort_keys=False, indent=4)
 
+    @classmethod
+    def from_string(cls, text: str) -> "Self":
+        """
+        Load model from json string.
+        """
+        import json
+
+        data = json.loads(text)
+        obj = cls(**data)
+        return obj
+
+    def to_string(self) -> str:
+        """
+        Dump model to a json string.
+        """
+        import json
+
+        result = json.dumps(self.dict(), sort_keys=False, indent=4)
+        return result
+
     def do_snapshot(self):
         """
         Save ``self.dict()`` result as a new starting point for detecting changes in the object data.