Classe « IndexModel »

Constructeur pymongo.IndexModel.__init__

Signature de la constructeur __init__

def __init__(self, keys, **kwargs) 

Description

__init__.__doc__

Create an Index instance.

        For use with :meth:`~pymongo.collection.Collection.create_indexes`.

        Takes either a single key or a list of (key, direction) pairs.
        The key(s) must be an instance of :class:`basestring`
        (:class:`str` in python 3), and the direction(s) must be one of
        (:data:`~pymongo.ASCENDING`, :data:`~pymongo.DESCENDING`,
        :data:`~pymongo.GEO2D`, :data:`~pymongo.GEOHAYSTACK`,
        :data:`~pymongo.GEOSPHERE`, :data:`~pymongo.HASHED`,
        :data:`~pymongo.TEXT`).

        Valid options include, but are not limited to:

          - `name`: custom name to use for this index - if none is
            given, a name will be generated.
          - `unique`: if ``True``, creates a uniqueness constraint on the index.
          - `background`: if ``True``, this index should be created in the
            background.
          - `sparse`: if ``True``, omit from the index any documents that lack
            the indexed field.
          - `bucketSize`: for use with geoHaystack indexes.
            Number of documents to group together within a certain proximity
            to a given longitude and latitude.
          - `min`: minimum value for keys in a :data:`~pymongo.GEO2D`
            index.
          - `max`: maximum value for keys in a :data:`~pymongo.GEO2D`
            index.
          - `expireAfterSeconds`: <int> Used to create an expiring (TTL)
            collection. MongoDB will automatically delete documents from
            this collection after <int> seconds. The indexed field must
            be a UTC datetime or the data will not expire.
          - `partialFilterExpression`: A document that specifies a filter for
            a partial index. Requires MongoDB >= 3.2.
          - `collation`: An instance of :class:`~pymongo.collation.Collation`
            that specifies the collation to use in MongoDB >= 3.4.
          - `wildcardProjection`: Allows users to include or exclude specific
            field paths from a `wildcard index`_ using the { "$**" : 1} key
            pattern. Requires MongoDB >= 4.2.
          - `hidden`: if ``True``, this index will be hidden from the query
            planner and will not be evaluated as part of query plan
            selection. Requires MongoDB >= 4.4.

        See the MongoDB documentation for a full list of supported options by
        server version.

        :Parameters:
          - `keys`: a single key or a list of (key, direction)
            pairs specifying the index to create
          - `**kwargs` (optional): any additional index creation
            options (see the above list) should be passed as keyword
            arguments

        .. versionchanged:: 3.11
           Added the ``hidden`` option.
        .. versionchanged:: 3.2
           Added the ``partialFilterExpression`` option to support partial
           indexes.

        .. _wildcard index: https://docs.mongodb.com/master/core/index-wildcard/#wildcard-index-core