ramjet.photometric_database.sql_metadata_lightcurve_collection¶

Classes¶

class SqlMetadataLightcurveCollection[source]¶

Bases: ramjet.photometric_database.lightcurve_collection.LightcurveCollection

Class for a lightcurve collection that stores its metadata in the SQL database.

__init__(self)[source]¶

Parameters:

label – The label corresponding to the lightcurves in the collection. function_to_get_paths – A function which returns an iterable of the lightcurve paths. function_to_load_times_and_fluxes_from_path – A function which, given a lightcurve path, will load the times and fluxes of the lightcurve. function_to_load_times_and_magnifications_from_path – A function which, given a lightcurve path, will load the times and magnifications of the lightcurve.

get_sql_query(self)[source]¶

Gets the SQL query for the database models for the lightcurve collection.

Returns:	The SQL query.

sql_count(self)[source]¶

Gets the count of the rows returned by the SQL query.

Returns:	The count.

get_path_from_model(self, model: MetadatabaseModel)[source]¶

Gets the lightcurve path from the SQL database model.

Returns:	The path to the lightcurve.

get_paths(self)[source]¶

Gets the paths for the lightcurves in the collection.

Returns:	An iterable of the lightcurve paths.

static order_by_uuid_with_random_start(select_query: Select, uuid_field: Field)[source]¶

Applies an “order by” on a query using a passed UUID field. The “order by” starts at a random UUID and then loops back to the minimum UUID include all entities.

Parameters:	select_query – The query to add the “order by” to. uuid_field – The UUID field to order on.
Returns:	The query updated to include the “order by”.

static order_by_dataset_split_with_random_start(select_query: Select, dataset_split_field: Field, available_dataset_splits: Union[List[int], None])[source]¶

Applies an “order by” on a query using a passed dataset_split field. The “order by” starts at a random dataset_split out of the passed available options, then loops back to the minimum dataset_split to include all entities.

Parameters:	select_query – The query to add the “order by” to. dataset_split_field – The dataset_split field to order on. available_dataset_splits – The available dataset_splits to start on.
Returns:	The query updated to include the “order by”.