Method: Returns comma separated ids of excluded products, based on query arguments from the user.

Method: Returns comma separated ids of included categories, based on query arguments from the user.

Method: Returns comma separated ids of included coupons, based on query arguments from the user.

Method: Returns comma separated ids of excluded coupons, based on query arguments from the user.

Method: Returns comma separated ids of included orders, based on query arguments from the user.

Method: Generates a virtual table given a list of IDs.

Method: Returns a comma separated list of the fields in the `query_args`, if there aren’t, returns `report_columns` keys.

Method: Returns a comma separated list of the field names prepared to be used for a selection after a join with `default_results`.

Method: Fills ORDER BY clause of SQL request based on user supplied parameters.

Method: Fills FROM and WHERE clauses of SQL request for ‘Intervals’ section of data response based on user supplied parameters.