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The SortOptions Class

Class SortExpression represents a multi-dimensional sort of Documents.

The following code shows how to sort documents based on product rating in descending order and then cheapest product within similarly rated products, sorting at most 1000 documents:

     SortOptions(expressions=[
         SortExpression(expression='rating',
             direction=SortExpression.DESCENDING, default_value=0),
         SortExpression(expression='price + tax',
             direction=SortExpression.ASCENDING, default_value=999999.99)],
         limit=1000)

SortOptions is defined in the google.appengine.api.search module.

  1. Constructor
  2. Properties:

Constructor

The constructor for class SortOptions is defined as follows:

class SortOptions ( expressions = None , match_scorer = None , limit = 1000 )

Sort documents according to the specified options.

Arguments

expressions

An iterable of SortExpression representing a multi-dimensional sort of Documents.

match_scorer

A match scorer specification which may be used to score documents or in a SortExpression combined with other features.

limit

The limit on the number of documents to score. It is advisable to set this limit on large indexes.

Result value

A new instance of class SortOptions .

Exceptions

TypeError

If any of the parameters have an invalid type, or an unknown attribute is passed.

ValueError

If any parameter has an invalid value.

Properties

An instance of class SortOptions has the following properties:

expressions

Returns a list of SortExpression specifying a multi-dimensional sort.

match_scorer

Returns a match scorer used to score documents.

limit

Returns the limit on the number of documents to score.

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