new ModelRoot class

[DirkEilander]

Kind of request

Changing existing functionality

Enhancement Description

Currently the Model._root is a Path instance and a separate property from the Model._write and Model._read properties and methods which are derived from the read/writing mode and used by Model._assert_read_mode and Model._assert_write_mode methods. The Model.set_root method sets both the root and the mode and creates a folder structure based on the Models._FOLDERS class property.

These methods could be combined into a single ModelRoot class, which might be a good starting point to improve the read/write behavior together with #671 In addition I think we should leave the setting up of a folder structure to write methods and only create a model root folder when setting a new root as not all folders are used by each instance of a model and this behavior is rather unclear.

Use case

This mainly targets better code structure. See #671 for an example

Additional Context

No response

[savente93]

@DirkEilander Now that #788 and #786 are merged can we close this issue or is still more necessary?