Assign values to Constants from SESSION_CONFIGS

[Bhagya Gunawardena]

Hello all,

I have a similar question as in the tread "SESSION_CONFIG to Constants" and checked the link mentioned in the answer. If I'm not mistaken, in "random_num_rounds" app, we set num_rounds to a larger number and display pages conditionally (based on random numbers). Is there a way where the experimenter set a fixed number of rounds (or set a value of any other variable) in session config and use it as a constant? For example, can I assign the value of "num_seq" and "num_rounds_per_seq" in the following code in the session config, so I can change the number of rounds when starting a session without changing the original code? (I'm using self format) 

class Constants(BaseConstants):

    name_in_url = 'New_Stages'

    players_per_group = None

    num_seq = 3

    num_rounds_per_seq = 10

    num_rounds = num_seq * num_rounds_per_seq

Thank you,

Bhagya 

[Olaf Ghanizadeh]

I don't think you can access it in Constants, but you can access it in the subsession like this:

subsession.session.config['num_seq']

[Bhagya Gunawardena]

Thank you for your reply.

 Yes, I tried self.session.config. The problem I have (in addition to the above) is that my main application has several rounds (which I wanted to change through session config) and I want to refer to the number of rounds the main app had in another app. Currently what I do is define a new constant in the following app and explicitly assign the number of rounds in the main app manually. But, I would like to change this value only at one point and then access that value through all the apps. (So if I want to change the number of rounds in the main app, I only have to change one point.)