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Python helpers._index_list方法代码示例

本文整理汇总了Python中pymongo.helpers._index_list方法的典型用法代码示例。如果您正苦于以下问题:Python helpers._index_list方法的具体用法?Python helpers._index_list怎么用?Python helpers._index_list使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在pymongo.helpers的用法示例。


在下文中一共展示了helpers._index_list方法的4个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: sort

# 需要导入模块: from pymongo import helpers [as 别名]
# 或者: from pymongo.helpers import _index_list [as 别名]
def sort(self, key_or_list, direction=None):
        """Sorts this cursor's results.

        Pass a field name and a direction, either
        :data:`~pymongo.ASCENDING` or :data:`~pymongo.DESCENDING`::

            for doc in collection.find().sort('field', pymongo.ASCENDING):
                print(doc)

        To sort by multiple fields, pass a list of (key, direction) pairs::

            for doc in collection.find().sort([
                    ('field1', pymongo.ASCENDING),
                    ('field2', pymongo.DESCENDING)]):
                print(doc)

        Beginning with MongoDB version 2.6, text search results can be
        sorted by relevance::

            cursor = db.test.find(
                {'$text': {'$search': 'some words'}},
                {'score': {'$meta': 'textScore'}})

            # Sort by 'score' field.
            cursor.sort([('score', {'$meta': 'textScore'})])

            for doc in cursor:
                print(doc)

        Raises :class:`~pymongo.errors.InvalidOperation` if this cursor has
        already been used. Only the last :meth:`sort` applied to this
        cursor has any effect.

        :Parameters:
          - `key_or_list`: a single key or a list of (key, direction)
            pairs specifying the keys to sort on
          - `direction` (optional): only used if `key_or_list` is a single
            key, if not given :data:`~pymongo.ASCENDING` is assumed
        """
        self.__check_okay_to_chain()
        keys = helpers._index_list(key_or_list, direction)
        self.__ordering = helpers._index_document(keys)
        return self 
开发者ID:jruaux,项目名称:mongodb-monitoring,代码行数:45,代码来源:cursor.py

示例2: __init__

# 需要导入模块: from pymongo import helpers [as 别名]
# 或者: from pymongo.helpers import _index_list [as 别名]
def __init__(self, keys, **kwargs):
        """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.

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

        .. note:: `partialFilterExpression` requires server version **>= 3.2**

        :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:: 3.2
            Added partialFilterExpression to support partial indexes.
        """
        keys = _index_list(keys)
        if "name" not in kwargs:
            kwargs["name"] = _gen_index_name(keys)
        kwargs["key"] = _index_document(keys)
        self.__document = kwargs 
开发者ID:jruaux,项目名称:mongodb-monitoring,代码行数:58,代码来源:operations.py

示例3: sort

# 需要导入模块: from pymongo import helpers [as 别名]
# 或者: from pymongo.helpers import _index_list [as 别名]
def sort(self, key_or_list: Union[str, List[tuple]], direction: Optional[int] = None) -> 'Cursor':
        """Sorts this cursor's results.

        Pass a field name and a direction, either
        :data:`~pymongo.ASCENDING` or :data:`~pymongo.DESCENDING`::

            async for doc in collection.find().sort('field', pymongo.ASCENDING):
                print(doc)

        To sort by multiple fields, pass a list of (key, direction) pairs::

            async for doc in collection.find().sort([
                    ('field1', pymongo.ASCENDING),
                    ('field2', pymongo.DESCENDING)]):
                print(doc)

        Beginning with MongoDB version 2.6, text search results can be
        sorted by relevance::

            cursor = db.test.find(
                {'$text': {'$search': 'some words'}},
                {'score': {'$meta': 'textScore'}})

            # Sort by 'score' field.
            cursor.sort([('score', {'$meta': 'textScore'})])

            async for doc in cursor:
                print(doc)

        Raises :class:`~pymongo.errors.InvalidOperation` if this cursor has
        already been used. Only the last :meth:`sort` applied to this
        cursor has any effect.

        :Parameters:
          - `key_or_list`: a single key or a list of (key, direction)
            pairs specifying the keys to sort on
          - `direction` (optional): only used if `key_or_list` is a single
            key, if not given :data:`~pymongo.ASCENDING` is assumed
        """
        self.__check_okay_to_chain()
        keys = helpers._index_list(key_or_list, direction)
        self.__ordering = helpers._index_document(keys)
        return self 
开发者ID:ZeoAlliance,项目名称:aiomongo,代码行数:45,代码来源:cursor.py

示例4: __init__

# 需要导入模块: from pymongo import helpers [as 别名]
# 或者: from pymongo.helpers import _index_list [as 别名]
def __init__(self, keys, **kwargs):
        """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.
          - `collation`: An instance of `~pymongo.collation.Collation` that
            specifies the collation to use in MongoDB >= 3.4.

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

        .. note:: `partialFilterExpression` requires server version **>= 3.2**

        :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:: 3.2
            Added partialFilterExpression to support partial indexes.
        """
        keys = _index_list(keys)
        if "name" not in kwargs:
            kwargs["name"] = _gen_index_name(keys)
        kwargs["key"] = _index_document(keys)
        collation = validate_collation_or_none(kwargs.pop('collation', None))
        self.__document = kwargs
        if collation is not None:
            self.__document['collation'] = collation 
开发者ID:Fretice,项目名称:flask-zhenai-mongo-echarts,代码行数:63,代码来源:operations.py


注:本文中的pymongo.helpers._index_list方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。