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Thoth storages definitions and rules for query name convention in Thoth

  • objects can be identified with Tuple of strings containing attribute values of the object or by a single string matching the only attribute we are interested in. E.g. Python package is an object made of a Tuple(name, version, url)

  • python_package used in query is equivalent to python_package_version_entity looking at Thoth Knowledge Graph schema.

  • attribute_name is the attribute of the object we want to use to group results.

  • The model which are referring to users are identified with External in the Thoth Knowledge Graph schema. The flag is_external needs to be included in the query when we want to query for an object.

  • All queries with output different from int shall have start_offset=0, count=_DEFAULT_COUNT, for pagination purposes.

  • distinct is a flag introduced to have distinct values in the query result.

  • Filters can have a default value of None which will disable them.

  • Keep Python package tuples positional arguments.

Query Name Template in Thoth

Type TemplateQuery Output
1 get_<objects>_all() Get all records of an entity and each record output will have attributes which depend on the entity (no constraint on that), therefore we can have string or a Tuple of strings in the List. List[Any]
2 get_<objects>_all_<attribute_filter>() It’s an extension of Type 1. Get all records of an entity grouped by an attribute of the entity and each record output will have attributes which depend on the entity (no constraint on that), therefore we can have string or a Tuple of strings in the List. Dict[str, List[Any]]
3 get_<objects>_count() Get number of records count of an entity. The entity can be identified with Tuple of strings containing attributes values of the entity. It depends on what we mean by the entity (e.g. Python Package is a Tuple(name, version, url). Dict[str, int] or Dict[List[Any], int]]
4 get_<objects>_per_<attribute_filter>() Get records count of an entity. The entity can be identified with Tuple of strings containing attributes values of the entity. It depends on what we mean by the entity (e.g. Python Package is a Tuple(name, version, url). Dict[str, List[Any]]
5 get_<objects>_count_per_<attribute_filter>() It’s a particular case of type 3. Get number of records count of an entity grouped by an attribute value. The entity can be identified with Tuple of strings containing attributes values of the entity except the attribute used to group. It depends on what we mean by the entity (e.g. Python Package entity grouped by url will have a Tuple(name, version). Dict[str, Dict[List[Any], int]] or Dict[str, Dict[str, int]]
6 get_<objects>_count_all() Count all records for a specific entity. int
7 get_<object>() Get a specific record according to the input parameters in the function.. Dict[str,Any] or List[str]
8 <object>_exists() Query to check if a specific record with specific attributes exists in the database. bool
9 has_<object><statement>() Query to check if a specific record has a specific value of an attribute. bool
10 is_<object><flag/statement> Returns boolean value indicating the value of the flag or statement. bool
11 update_<objects>_on_<attribute_filter>() Update a particular object's attribute, selecting it based on a unique constraint. bool