def try_delete_property(self, key):
"""
Deletes a single metadata property.
Args:
key(string): Name of the metadata property
Returns:
pyshelf.metadata.result.Result
"""
result = Result()
if self.metadata.is_immutable(key):
result.add_error(ErrorCode.IMMUTABLE)
else:
del self.metadata[key]
self.write()
return result
def try_delete_property(self, key):
"""
Deletes a single metadata property.
Args:
key(string): Name of the metadata property
Returns:
pyshelf.metadata.result.Result
"""
result = Result()
if self.metadata.is_immutable(key):
result.add_error(ErrorCode.IMMUTABLE)
else:
del self.metadata[key]
self.write()
return result
def try_create_property(self, key, value):
"""
Creates a single metadata property. Will error if the
property already exists.
Args:
key(string)
value(schemas/metadata-property.json)
Returns:
pyshelf.metadata.result.Result
"""
result = Result()
if self.metadata.get(key):
result.add_error(ErrorCode.DUPLICATE)
else:
result = self._try_update_property_with_result(key, value, result)
return result
def try_create_property(self, key, value):
"""
Creates a single metadata property. Will error if the
property already exists.
Args:
key(string)
value(schemas/metadata-property.json)
Returns:
pyshelf.metadata.result.Result
"""
result = Result()
if self.metadata.get(key):
result.add_error(ErrorCode.DUPLICATE)
else:
result = self._try_update_property_with_result(key, value, result)
return result
