Getting filename and value from FileInput in the same time

[angels_demos]

Hi all!
I have a bokeh app using FileInput. However when i tried to get filename and value cannot getting the filename because of the problem i mentioned below.

Basic code:

fn=[]

def get_filename(attr, old, new):
    global fn
    fn.append(new)
    print(new + " is selected")

def upload_file(attr, old, new):
    # some codes
    print("--------")
    print(fn)

file_input = FileInput(name="fileinput", accept=".csv")
file_input.on_change('filename', get_filename)
file_input.on_change('value', upload_file)

and it returns:

[]
filename.csv is selected

It’s because upload_file function start first somehow. It shouldn’t be. Do you know guys the reason or any method to get filename and value from FileInput in the same time? I tried couple of things but everytime upload_file function is the first one to start, so i cannot getting the filename in that function.

[Bryan]

A combined event is still an open issue:

[FEATURE] where there are multiple related properties that might need to be responded to as a group, respond to them only after all are guaranteed to be updated

For now you can simply have one callback for value that also accesses the filename (since it will be set by that point).

[angels_demos]

@Bryan yes i’m using that way for now but I don’t like it thank you! I hope soon we could get that feature.