Import all calendars associated with an online account

Workaround

You can add your Google calendars as CalDAV calenendars.

No luck with calDAV implementation

For the calDAV implementation, I use the private address offered by the google calendar, but once I include it and restart maya, it displays a message saying 'Permission denied'.
The current process that I follow using one google account but with multiple calendars:
- Under the menu for calendar type I choose calDAV
- Then give it a generic name like 'Google calendar 2'
- Check for 'Keep a copy locally'
- For the URL, I provide the whole link that is given selecting the XML option in Private Address under the Google calendar settings
- Then check the option for 'Use a secure connection'
- For user, I put my username (e.g. user33, which is part of the google account: <email address hidden>)
- And for email, well, my email (e.g. <email address hidden>)

I also have tried:
For the user part, my full google email (e.g. <email address hidden>).
This lead me to the same error

It's now possible via Pantheon Online Accounts

Either I didn't get the update, or the plug for it is not working. Maya is not being detected as a application for the Google account that I included.
Screenshot included.

You need to install some packages :
evolution-data-server-pantheon-online-accounts
evolution-data-server-google2
evolution-data-server-outlook

Fresh install Freya (0.3)

- Maya still imports only the one default calendar from google and not all the calendars of the user

- in which repositories "evolution-data-server-pantheon-online-accounts, evolution-data-server-google2, evolution-data-server-outlook" are supposed to be found ?

- Maya does not use Oauth/token for connecting to google-account So I had to lower security level of my google account for allowing less secure app's - which sounds bad.

Some progress in my own branch: https://code.launchpad.net/~almamu/maya/fix-1356869
Actually it supports more than one calendar by google account BUT you need to add every calendar you need manually. The calendar id can be found in the settings of the calendar you want to add.

Actually the online-accounts solution worked for me after installing / replacing a few packages:

sudo apt-get remove evolution-data-server-online-accounts
sudo apt-get install switchboard-plug-online-accounts evolution-data-server-pantheon-online-accounts evolution-data-server-google2 evolution-data-server-outlook

Restarted switchboard, went to online account settings and added a google account (googl+ icon).

Rebooted to make sure all evolution data server things got started correctly (overly careful. but elementaryos on an ssd boots just so fast...).

All my google calendars did show up in maya.

Hello Timo,

I'd like to try your solution but here is the "answer" of apt-get :

Aucune version du paquet switchboard-plug-online-accounts n'est disponible, mais il existe dans la base
de données. Cela signifie en général que le paquet est manquant, qu'il est devenu obsolète
ou qu'il n'est disponible que sur une autre source

E: Le paquet « switchboard-plug-online-accounts » n'a pas de version susceptible d'être installée
E: Impossible de trouver le paquet evolution-data-server-pantheon-online-accounts
E: Impossible de trouver le paquet evolution-data-server-google2
E: Impossible de trouver le paquet evolution-data-server-outlook

So did you activate some specific repositories or any backport channel or something ?

Added to elementary-desktop dependencies

Followed the steps in #8 (need to add the daily PPA to get the dependencies) but it still only syncs my main google calendar :((

I am on Loki and when I add my google account in Maya, it only grabs my default calendar. When I go to Online Accounts, I don't see an option to add my google account. I also don't see evolution-data-google2 or evolution-data-outlook in the repos.