def update_from_json(self, json_str): import json data = json.loads(json_str) for cat, values in data.items(): if cat in self._metadata: self._metadata[cat].update(values) else: self._metadata[cat] = values meta = GlobalMetadata() meta.set("project", "name", "Neon_Dreams") meta.set("user", "role", "TD Artist") print(meta.get("project", "name")) 3. If you meant a short poetic / conceptual piece about global metadata Global Metadata DAT In the silent rows of a table DAT, the world’s context waits – compact, exact. A single key can shift a render’s fate, or map a scene from abstract to exact.
class GlobalMetadata: """ A singleton-style metadata store with validation, versioning, and export to JSON. """ _instance = None _metadata = {} def __new__(cls): if cls._instance is None: cls._instance = super().__new__(cls) cls._instance._metadata = { "system": "version": "1.0.0", "environment": "production" , "project": {}, "user": {} } return cls._instance global metadata dat
def set(self, category, key, value, validate=None): if category not in self._metadata: self._metadata[category] = {} if validate and not validate(value): raise ValueError(f"Invalid value for key: value") self._metadata[category][key] = value default=None): return self._metadata.get(category
It sounds like you’re asking for a piece related to — likely in the context of TouchDesigner (where .dat is a text or table DAT operator) or a broader data management / pipeline concept. indent=2) def get_all(self): return self._metadata
def get(self, category, key, default=None): return self._metadata.get(category, {}).get(key, default)
def export_json(self): import json return json.dumps(self._metadata, indent=2)
def get_all(self): return self._metadata