Enhancement
Restrict the input completer to instances of a certain type
Issue description
Currently the input completer is searching over all topics in the store. In many cases the input completer would need to search only over instances of a certain type. In the create topic dialog the type field should only suggest topic types. Same goes for the occurrence dialog.
This would in a later stage also make it possible to offer the user a stronger ontological guidance by restricting role types to certain topic types, e.g. only people can marry people.
Developer comments
All input completers in the Wiki and the Editor are now restricted to their respective type *with the exception of occurrence type* which somehow was forgotten. It will be covered in the next release.
The only input completers that require to refer to a topic and are not restricted are the player ones. This would also be the place to incorporate *a stronger ontological guidance*, where a role type can be restricted to a range and only instances of that range are suggested. This would make it necessary to create a range association which, for performace reasons, would have to be mirror in a database table.
This concept was actually present *in the very first version of Topincs*, which was presented at the TMRA 2005. It was dropped because, there is no standard range relation in the TMDM and such a relation might lead to validation problems.
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