I want to provide the user with a dropdown for a belongs_to field, and have the user's action of just changing the selected value in the dropdown to change the value of the field; I don't want them to have to pick a dropdown value, then click Add Existing. In fact I just want the dropdown to be the field; but today, in a belongs_to situation, you have a field with text, and a dropdown below it and the Add Existing link--and clicknig Add Existing puts the value of the dropdown into the text field. It feels way too indirect.
Is there a way to merge those three ideas into one field--a single dropdown? The dropdown then shows the value and also allows you to change it; and if you change it, then you changed the value (provided you click 'Update' at the bottom, of course)
I'm aware of column_show_add_existing -- that's not what I'm looking for. If you set that to false, then the dropdown next to 'Add Existing' is removed altogether, and the user is just left with a free-formed text field.
There is still the challenge of adding new values to that dropdown... but let me wave that away for a second... is what I'm asking clear?
Thanks for any help!