gntools.common.const module

Module with specific GEONIS-related constants. All GPF constants are imported as well, which means that this module basically extends the gpf.common.const module.

This module also contains GEONIS definition mappings (GNTABLES and GNFIELDS, for example). These mappings are stored as dictionary structures. Mapping structures determine which Python Definition property/attribute is mapped to what GEONIS definition (e.g. table or field name). When a language-based or custom override is available, the definition override is looked up in the definition table for a certain solution, which is stored in the database. If this table does not exist, or no override was found, the default (German) value is returned instead.

A mapping should always have the following dictionary structure:

mapping_name = {
  solution_name1: {
      code_property_name1: (definition_table_property_name, default_definition_value),
      code_property_name2: (..., ...),
      ...
  },
  solution_name2: {
      ...
  }
}

If no definition table property name (i.e. lookup key) is available, it should be set to None. Default definition values should always have a value, so that any failed lookup immediately returns this value.