Dynamic default value for select list I am trying to make a reservation system for equipment in a laboratory.
People reserve equipment by creating "reservation" nodes that are tagged with the taxonomy term "Equipment".
In the "create reservation page" the referenced taxonomy field is a dropdown list.

On the other hand I have a table view with all the equipment with its corresponding taxonomy term. 
I would like to have in a third column a link to the "create reservation page" and  I would like that in the "create reservation page"  the corresponding taxonomy term in the dropdown list is already selected.
Any idea how to succeed?
The Prepopulate module allows you to construct a special URL inside your table view that, when clicked, will prepopulate the correct taxonomy term on the "Create reservation page".

The special URL will looking something like this:

http://www.example.com/node/add/reservation?edit[field_equipment_term_reference]=123


You need to:


Download and install the Prepopulate Drupal module.
In your table view, add the Taxonomy Term ID field (if not already added).
In your table view, add a Global Text custom field.
In the Global Text field config screen, specify the text "create reservation page" and then expand the rewriting section, and turn the field into a link, with link destination of node/add/reservation?edit[field_equipment_term_reference]=[tid].


Please note:


the [tid] is the substitution token from the field added in step 2.
replace field_equipment_term_reference with the real machine name of the taxonomy term reference field you're using on the Reservation node.