Dear Galaxy user,
I'm working on a interface where the user can choose multiple data files using
<param name="data_selection" type="data" multiple="true" />. Although I didn't
find details about this in the manual, it does work.
The next step in the interface are two select boxes (<param type="select"
dynamic_options="copy_selected_data_names(data_selection)" />) which allow
further selection on the data chosen in "data_selection".
I created a small python script that copies the entries selected in
"data_selection" as follows:
items = 
if(DataToolParameter_multiple_object != NULL):
if(type(DataToolParameter_multiple_object) == type()):
## If it is a list
for g in DataToolParameter_multiple_object:
## If it isn't a list
I noticed that once only one single object is selected, the DataToolParameter
returns directly one HistoryDatasetAssociation object. Once several are
selected, it returns a list with HistoryDatasetAssociation objects. I think
this is not correct; the DataToolParameter is a object where multple is set to
"true" so it should always return a list even if none or 1 object is selected.
Nevertheless, this part of the code works. However, the update of the
dynamic_options="copy_selected_data_names(data_selection)" only takes place
whenever new objects (in repeat blocks) are added or removed elsewhere in the
interface. Thus, the copying of the content doesn't take place when the
selection has changed.
My question is: is there a way to make dynamic_options="" update whenever the
selection in "data_selection" has changed?
I checked the code and I found some variables in the DataToolParameter class
that may have something to do with it:
self.refresh_on_change = False
self.refresh_on_change_values = 
But I'm not able to solve the puzzle on my own. Is there anyone who can help in
this direction? Thanks in advance!
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