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Nik | Klampfradler authoredNik | Klampfradler authored
Registration and user invitations
In addition to central management of user accounts, AlekSIS allows self-registration by users. Registration can be either fully open, or based on personal invitations.
In a system handling ciritcal data, access control should be as tight as possible. However, there are scenarios where central account creation is not feasible, e.g. for optional guardian accounts. In such a scenario, the invitation system allows for processes like handing out invitation codes as a letter or through e-mail campaigns.
Configuration
Registration
Registration can be enabled via the configuration interface in frontend.
In the Authentication
tab, click the checkbox Enable signup
to enable
signup for everyone. A menu item will be added for public registration.
Warning
Do not enable this feature unless you intend to run a public AlekSIS instance.
Before enabling registration, you should consider restricting allowed usernames. By default, all ASCII characters are allowed in usernames. Often, it is advisable to not allow special characters. This often depends on the systems that will be linked to AlekSIS.
To restrict usernames to a certain format, a regular expression can be defined
in the Regular expression for allowed usernames
preference. For example, to
restrict the username to lower case letters and numbers, and beginning with a number,
the regex can be set to ``^[a-z][a-z0-9]+$`.
User invitations
In the same location as public registration, the invitation system can be enabled.
- Authentication
- Enable invitations: Click to enable invitations.
- Length of invite code: Length of invitation code packets, defaults to 5.
- Size of packets: Configure how many packets are generated, defaults to 3.
By default, an invitation code looks like the following:
abcde-abcde-abcde
.
A menu item will become available for users to enter their invitation code.
Usage
Invite by email or code
To invite a new user , visit the invitation page located at People → Invite
person
Here you are able to invite the user by email address or generate an invitation code.

This mechanism allows for registration of entirely new persons that do not exist in the system, e.g. if perosnal details are not known in advance.
Invite existing person
To invite an existing person, open the person in AlekSIS and click Invite
user
.
The invitation will be sent to the person's email address, and can only be used by this person. Upon registration, the new account will automatically be linked to the existing person.

Note
Before using this feature, make sure to read and understand :ref:`core-concept-person`.