[Info] Persistent storage and global variables in apps

[liran]

So from what your say:
if I have:

load_file.py:

x=3

descriptor.xml:

<startWindow>load_file<startWindow>

main.xml:

x # -> 3

other.xml:

x # -> 3

So this is a good way to share Python variables, right ? For all of them (the ones I need to be shared) to be at load_file.py ?

[bartsidee]

Yes that is correct

You can launch a window from load_file.py using the api command mc.activatewindow(14000)

You can even import those globals to another py module, to do that place in the module on top

[liran]

Thanks !

[bartsidee]

Update:
Here an example to prevent cross imports:

load_file.py

import os
import sys

# SET APP WIDE GLOBAL VARS
CWD  = os.getcwd().replace(";","")
X      = 5


# Init App
if ( __name__ == "__main__" ):
   import external
   mc.ActivateWindow(15000)
   APP = external.load()

external.py

from load_file import *

class load():
    def __init__(self):
       #Your Code

Note that you want to prevent a cross import so 'load_file' imports 'external' and 'external' import 'load_file' etc. To prevent this you introduce the following code:
if ( __name__ == "__main__" ):
This is only executed if the file is launched directly (as main), but not on an import, thus preventing the execution of the code below it. Now you can call variable X from both the module and all the windows, but you can only call APP from your windows, but not from your module external as it is called after the main check.

[Razorax]

Hi. Old thread, but I have some new questions.

I use mc.GetApp().GetLocalConfig() for storing/retrieving some state information.

This seems to work fine on Boxee under windows (settings are shared between windows, and shared between sessions).

Unfortunately, when I try running the same code on BB, state seems to be only partly sharede between windows, and cleaned between sessions (invocations of the addon).

Has anyone else been experiencing this? Does anyone know how to get BB to actually store the values... persistently?

[Xienixs]

As I am working with large XML files dragged from the internet I dont want to spam the host with to many requests. For that I store the XML files, however when I try this:

<![CDATA[mc.ShowDialogNotification('File is being generated!')
f = open('test_variable','w')
f.write('Exists')
f.close()]]>

It works fine and creates a file. But it is located in /Home/name/ as I use ubuntu 11.10. Why is it not stored in the directory where the script is being called? I would assume this would either be .boxee/UserData/apps/myapp/ or ......./myapp/skin/Boxee Skin NG/720p/main.xml

Why is this? As when running in future prospects on different OS's it would be nice to have it in the boxee directory.

Found a solution:

<![CDATA[import os
mc.ShowDialogNotification('File is being generated!')
dir = mc.GetApp().GetAppMediaDir()
if os.path.isdir(dir+'/storage/') == False:
os.mkdir(dir+'/storage/')
f = open(dir+'/storage/test_variable','w')
f.write('Exists')
f.close()]]>

Not sure if this is insanely crazy though... or is this a good approach?