1.18.1 Collection hierarchy
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A digital collection can contain several hierarchy levels of subcollections.
Each record can belong to any number of collections. It is also not possible to belong to a collection.
If a record is assigned to at least one collection, this information is stored in the DC (DigitalCollection) field of the index. The entries in this field always consist of a text string, which may be divided into several hierarchy levels for the collection by a separator:
The character string interpreted as a separator (in the above example, a period) can be changed individually for each hierarchical field using the following configuration element:
It should be noted that the names of the individual hierarchy levels themselves must not contain the separator character, since otherwise a subdivision also takes place in these places.
The translation of the example given above for an intuitive collection tree in the messages files looks as follows:
