* Skip google analytics when ga_tracking_id is nil
This commit involves short-circuiting Google Analytics calls when the
Forem has not configured a `Settings::General.ga_tracking_id`. Note,
depending on your local `.env` file (or configured ENV variables) you
may have a `GA_TRACKING_ID` value set; I did, it was set to "Optional"
which overrode the database setting.
We set the HTML data properites in two places: [admin.html.erb][1] and
[application.html.erb][2].
In addition, I'm short-circuiting the local fallback analytics call (via
[Stacato][https://github.com/tpitale/staccato]). My understanding of
Stacato, based on a cursory read, requires a Google Analytics Tracking
ID to work.
And last, we have a one off of javascript for Google Analytics tracking.
This closes#15962.
[1]:528bd2baa6/app/views/layouts/admin.html.erb (L31)
[2]:528bd2baa6/app/views/layouts/application.html.erb (L55)
How to test?
- Check your .env file to see if you have set GA_TRACKING_ID. If so,
unset it.
- Start with a fresh Forem instance.
- Open your browser and open the developer tools to inspect the Network
activity.
- Open the homepage of your local Forem instance (http://localhost:3000)
- Filter your Network results for analytics. You shouldn't see any.
Also, make sure you're disabling any blockers you might have as that
influences things.
* Commenting out GA_TRACKING_ID
Related to https://github.com/forem/forem/pull/15967
* Favor empty GA_TRACKING_ID env variable
bde5064c9c