Events¶

An event links actors and places to a unit of description — and does so with a role and a date. That is what distinguishes it from keyword indexing: «engraver» or «transfer» is a statement about what someone did, not merely that this person occurs.

flowchart TD
    VE[Unit of description]
    AE[Anton event]
    ET[Event type]
    DT[Date]  
    AC[Actor]
    PL[Place]

    VE -.->|has| AE
    AE --> ET
    AE --> DT
    AE -.-> AC
    AE -.-> PL

    %% Styling
    classDef verzeichnung fill:#ffddaa,stroke:#133253,stroke-width:4px
    classDef antonevent fill:#e1f5fe,stroke:#01579b,stroke-width:3px
    classDef core fill:#c8e6c9,stroke:#1b5e20,stroke-width:2px
    classDef entity fill:#f3e5f5,stroke:#4a148c,stroke-width:2px

    class VE verzeichnung
    class AE antonevent
    class ET,DT core
    class AC,PL entity

An event consists of an event type, a date from and to (each with «ca.»), an actor, a place and a comment.

Event types¶

The event type is the role. The following are available by default:

Which of these appear in the form depends on the form set — a photographic archive needs different roles from a collection of prints. Some archives additionally maintain «loan».

Recording¶

Each event type forms its own row in the form. Several events are possible per type — the blue + button on the right adds another, the red ✕ removes one.

For the date, a from field and a to field are available with day, month and year, each with a ca. checkbox for approximate information. Individual components may be left empty. The to=from button adopts the start date as the end date — practical for points in time.

Actor and place are set via selection lists with a search. The + beside them creates a new actor or a new place without leaving the form.

All information apart from the type is optional — an event may therefore also exist without an actor or without a date. That is rarely sensible: an event with neither says nothing.

The Creation Date event type¶

A central event type is creation. The creation date is the basis for calculating the protection periods. Furthermore, the creation date is automatically rolled up through the archival arrangement, so that superordinate units of description automatically show the minimum and maximum of all creation dates of their descendants.