2021-12-04 - Sorry the Gramps wiki is currently being upgraded to a newer software version. Please check back after the 2021-12-06.
Gramps Data Model
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Gramps data model (v4.1)
Gramps uses the pickle module to serialise object hierarchies and store them in the database.
Details of the pickle module can be found here:
Below is a diagram of the Gramps data model (v4.1). As of October 2020, this model is reported to be valid for the v5.1 of Gramps. However, there is a minor `PlaceName` objects change in 4.2 to contain a string, language code and date range.
Primary objects are coloured blue. Secondary objects are coloured black. The dotted lines enclose object hierarchies that are stored in the database tables.
- Prgrammer's Introduction to the Gramps database API
- Gramps data model - discussion
- GEPS_013: Gramps Django Webapp:Model overview
- 10851 : Gramps Data Model - Polish Version - Gramps 5.0.0