user friendly settings assignment

[seanpearsonuk]

Covered in this discussion: #545

[seanpearsonuk]

Copied from the discussion:

This is the main capability to try to add

setup.models.energy.set_state(enabled=True, viscous_dissipation=False)
once that is done, adding the following could be relatively easy, but let's omit it from the initial work:

setup.models.energy(enabled=True, viscous_dissipation=False)
The code is in flobject.py. See set_state.

Take a look at this unit test:

def test_group():
    r = flobject.get_root(Proxy())
    r.g_1 = {"r_1": 3.2, "i_2": -3, "b_3": False, "s_4": "foo"}
    assert r.g_1() == {"r_1": 3.2, "i_2": -3, "b_3": False, "s_4": "foo"}
    r.g_1 = {"s_4": "bar"}
    assert r.g_1() == {"r_1": 3.2, "i_2": -3, "b_3": False, "s_4": "bar"}
    r.g_1.i_2 = 4
    assert r.g_1() == {"r_1": 3.2, "i_2": 4, "b_3": False, "s_4": "bar"}
    return True

Those assignments like r.g_1 = {"r_1": 3.2, "i_2": -3, "b_3": False, "s_4": "foo"} are going through set_state (in flobject.py). So one could actually add equivalent tests there that call set_state directly instead of direct assignment. Then, with those new tests in place, one can write a test that calls r.g_1.set_state(r_1=3.2, i_2=-3, b_3=False, s_4="foo") which, with the necessary changes in place in flobject.py, will produced the same result.