Build sets/members support

waagsociety / citysdk-ld

CitySDK Linked Data API

MIT License

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Build sets/members support #6

Closed bertspaan closed 9 years ago

bertspaan commented 10 years ago

v0.9 had support for routes, objects which had one or more child objects. This is used for GTFS line/stop relationships, OSM relations and is useful for API users who want to add data to a set of objects.

Add API functions to support creating and deleting sets,
Add DB constraints to make sure objects cannot be deleted when still in a set,
Decide what happens to objects without data which are still in a set.

bertspaan commented 9 years ago

For GTFS, this is solved using virtual layers.

Other use cases, e.g. to group a set of objects, are currently not supported.