Object

Field type object. What is stored is a reference to another object: the literature record in which a work is documented, the group a sheet belongs to, the original of a copy. The target remains a record of its own with its own fields, often in another project, such as a literature project. Data entry from the cataloguer’s side is described under Object .

Parameters

JSON
{
  "target_project_id": 12,
  "label_field": "Titel",
  "link_type": "documented_in"
}

The search covers the inventory number, the title field and the object ID. The object you are currently working on does not appear in the selection.

Because the configuration runs through the project hooks , the target project can be overridden per project, for example when an exhibition cites from a literature project of its own:

JSON
{ "target_project_id": 12, "label_field": "Titel", "hooks": { "134": { "target_project_id": 15 } } }

Field points to a link

The field details maintain the link type in a section of its own, Field points to a link, not under Parameters. You choose one type for all projects; per project you can set a different one or leave it at Same as all projects. The types themselves are described under Link types .

A target of another object type or from another project is saved; saving then reports a warning. Without a link type, the field remains a plain reference, with no inverse on the target.

Subfields

Available everywhere as Feldname~unterfeld: in filters, in the Excel export and in Word templates:

In the export the values are read in the target project. If a target is in another project, they come from its home project, otherwise from the readable project with the lowest ID. A filter on a subfield, on the other hand, searches only the target project: it does not match targets from other projects, even if the export shows their values.

Permissions

Title and inventory number only appear if you may read the target object, that is, if you have read access to one of its projects. Otherwise the field shows only #⟨Objekt-ID⟩ (the object ID), and the subfields stay empty in the export. A target you cannot read cannot be entered. See Permission model .

Formatting

The field type brings two formattings that cite:

Neither is preselected anywhere, because the field type also serves for references without literature (group of objects, part of). In templates they are called Literatur#citation_short and Literatur#citation_full. The Citation style on the field applies as long as the view or the export does not choose one of its own; the order of precedence is described under Citation style . See also Formatting .

When another field type fits