Source code for heat.db.sqlalchemy.filters

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import six

[docs]def exact_filter(query, model, filters): """Applies exact match filtering to a query. Returns the updated query. Modifies filters argument to remove filters consumed. :param query: query to apply filters to :param model: model object the query applies to, for IN-style filtering :param filters: dictionary of filters; values that are lists, tuples, sets, or frozensets cause an 'IN' test to be performed, while exact matching ('==' operator) is used for other values """ filter_dict = {} if filters is None: filters = {} for key, value in six.iteritems(filters): if isinstance(value, (list, tuple, set, frozenset)): column_attr = getattr(model, key) query = query.filter(column_attr.in_(value)) else: filter_dict[key] = value if filter_dict: query = query.filter_by(**filter_dict) return query
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