Example #1
0
    def try_update(self, data):
        """
            Overwrites the metadata with the data provided.  The only
            caveat is that if you try to set metadata that is immutable
            it will be ignored.

            Args:
                data(schemas/metadata.json)

            Returns:
                pyshelf.metadata.result.Result
        """
        data = self.container.mapper.from_response(data)
        old_meta = copy.deepcopy(self.metadata)

        for key, val in old_meta.iteritems():
            new_meta = data.get(key)

            if new_meta:
                if not self.metadata.is_immutable(key):
                    self.metadata[key] = new_meta
                data.pop(key)
            else:
                if not self.metadata.is_immutable(key):
                    del self.metadata[key]

        if len(data) > 0:
            self.metadata.update(data)

        # assuming success if it hasn't thrown an exception
        self.write()
        return Result()
Example #2
0
    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
Example #3
0
    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
Example #4
0
    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
Example #5
0
    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
Example #6
0
    def try_update_property(self, key, value):
        """
            Updates a single metadata property

            Args:
                key(string)
                value(schemas/metadata-property.json)

            Returns:
                pyshelf.metadata.result.Result
        """
        result = Result()
        result = self._try_update_property_with_result(key, value, result)
        return result