ftw.participation

With ftw.participation users can invite other users to a participate in a area (e.g. Workspace) of a Plone installation.

A privileges user is able to invite another person by going to the invite view and entering the e-mail address of the other person. The person receives a email with a link to the Plone installation where he / she can log in with a existing user or create a new one. On the invitations view he / she can now accept or deny the invitation. When the invitation is accepted the user gets the configured privileges on the context where he / she is invited.

The invitations are stored in a special container in the annotations of the plone site root.

Each invitation has its own unique id, which is used in the URL sent to the invited person. When the plone site is accessed using this link the invitation is assigned to the users session. That's why he can accept the invitation although he may be logged in with another user ID.

Activating

First you need to import the generic setup profile, which adds some actions, a browser layer and other stuff.

For activating the participation on a folderish content object give it the Interface ftw.participation.interfaces.IParticipationSupport which enables the participation on this context. This adds a new action "Manage participants" on this context and you can invite other people.

A invited person will receive a e-mail containing a link to the platform, containing the invitation id. After registering / logging in there is a new action "My invitations" in the user menu, where the user can accept or reject the invitation.

Using Quotas

Providing the interface ftw.participation.interfaces.IParticipationQuotaSupport adds a "Maximum amount of participaants" field to the schema which defines how many other users can be invited.

When a quota is set the user can only invite that amount of user to this context. There is a validator on the invitation form which ensures that the quota will not be crossed.

When setting the quota to 5 it is only possible to invite 4 other users because the first participant is the owner, which usually already exists. Inviting the same user multiple times counts also multiple times, but the invitor is able to retract the invitation on the "My invitations" view.

Customizing email messages

If a person is invitied to a context he gets a e-mail notification. If this person accepts or rejects the invitation the inviter is notified by e-mail. Those e-mails are multipart emails containing a HTML part and a plaintext fallback part.

The messages may be customized eather by overwriting the translations or by customizing the mail templates in ftw.participation.browser.

Installing

Just add ftw.participation to the eggs in your buildout configuration:

[instance]
eggs +=
    ftw.participation

Install the generic setup profile.

Events

ftw.participation.events.IInvitationCreatedEvent: An invitation was created.
ftw.participation.events.IInvitationAcceptedEvent: An invitation was accepted.
ftw.participation.events.IInvitationRejectedEvent: An invitation was rejected.
ftw.participation.events.IInvitationRetractedEvent: An invitation was retracted.
ftw.participation.events.IRolesChangedEvent: The roles of a participant was changed.
ftw.participation.events.ILocalRoleRemoved: A local role was removed.