More informative error messages from the Add-API

[SouthEndMusic]

When using the Add-API, I encountered the following errors messages in which inclusion of the node type would be helpful.

• When trying to add a node of a particular type with an ID that already exists:

ValueError: Node IDs have to be unique, but node_id=3 already exists.

Source:

Ribasim/python/ribasim/ribasim/config.py

Lines 124 to 128 in e0dd9cf

	node_id = node.node_id
	if self.node.df is not None and node_id in self.node.df["node_id"].to_numpy():
	raise ValueError(
	f"Node IDs have to be unique, but {node_id=} already exists."
	)

• When trying to add an edge with a node that does not exist:

IndexError: Node does not contain node_id: [4]

Source:

Ribasim/python/ribasim/ribasim/input_base.py

Lines 349 to 351 in e0dd9cf

	if missing.size > 0:
	raise IndexError(f"{tablename} does not contain node_id: {missing}")