How to manage groups in the Groups module

EMu has always enabled users to assign a name to a group of records and subsequently retrieve that group. Users have also been able to add records to a group, allowing a complex set of records to be assembled over time. Information about a group is stored in the egroups table, but until EMu 3.2.04 this table was hidden from users and maintained via the EMu client: when a user adds to or saves a group, the egroups table is adjusted automatically.

The Groups module was added to EMu with EMu version 3.2.04. Now, as well as using the Tools>Group set of menu commands to manage groups, users have the option to insert, update and delete groups using a familiar module interface.

Three types of groups are supported:

• Static - a list of record IRNs
• Terms - a list of columns and associated query terms
• Query - a TexQL statement

Group permissions use Record Level Security to determine which operations are available for which users. The creator of a group, or someone with permission to alter security settings, can assign other users the permission to manipulate the group. Available permissions are:

• display - a user can retrieve the group
• edit - a user can add or replace records in the group
• delete - a user can delete the group