def generate_instance_from_schema(cls, schema, saved_export=None):
"""Given an ExportDataSchema, this will generate an ExportInstance"""
if saved_export:
instance = saved_export
else:
instance = cls._new_from_schema(schema)
instance.name = instance.name or instance.defaults.get_default_instance_name(schema)
latest_app_ids_and_versions = get_latest_built_app_ids_and_versions(
schema.domain,
getattr(schema, 'app_id', None),
)
for group_schema in schema.group_schemas:
table = instance.get_table(group_schema.path) or TableConfiguration(
path=group_schema.path,
label=instance.defaults.get_default_table_name(group_schema.path),
selected=instance.defaults.default_is_table_selected(group_schema.path),
)
columns = []
for item in group_schema.items:
column = table.get_column(item.path) or ExportColumn.create_default_from_export_item(
table.path,
item,
latest_app_ids_and_versions,
)
# Ensure that the item is up to date
column.item = item
# Need to rebuild tags and other flags based on new build ids
column.update_properties_from_app_ids_and_versions(latest_app_ids_and_versions)
columns.append(column)
table.columns = columns
if not instance.get_table(group_schema.path):
instance.tables.append(table)
return instance
def test_get_latest_built_app_ids_and_versions_with_app_id(self):
build_ids_and_versions = get_latest_built_app_ids_and_versions(self.domain, self.apps[0].get_id)
self.assertEqual(build_ids_and_versions, {
self.apps[0].get_id: 12,
})
