Passing extra variables to ad.html and consent.html: 2pts

It is often useful to pass extra variables to ad.html or consent.html, however this ability is not currently provided by Dallinger. The “/ad” route is long and complex, and finishes like this:

return render_template(
    "ad.html",
    recruiter=recruiter_name,
    hitid=hit_id,
    assignmentid=assignment_id,
    workerid=worker_id,
    mode=config.get("mode"),
    app_id=app_id,
)

We would like to be able to inject extra variables into this render_template call, with these variables being defined as a class attribute on the Experiment class (see extra_files for a similar approach. Likewise, we would like to be able to inject extra variables into the render_template call for consent.html.

[pmcharrison]

Thanks for checking, @jessesnyder! I agree, guess that’s it then 😃 Although, I still agree with @alecpm that it would be worth documenting if it’s not documented already.

[jessesnyder]

A @property decorator seems to work fine, so it sounds like we can close this issue(?)

Experiment class:

    @property
    def time(self):
        return "The time is now."

Template:

<h3>From injected experiment:</h3>
<pre>{{ experiment.time }}</pre>

Output: