SearchLookup

This class provides a specialized lookup for full-text search operations by extending exact search vector functionality. It automatically handles the conversion of standard fields into search vectors using an optional configuration from the right-hand side of the expression. The class ensures that the left-hand side is compatible with search vector fields during query processing.

Attributes

Attribute	Type	Description
lookup_name	string = search	The identifier used in Django querysets to perform a full-text search operation, set to "search".

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Methods

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process_lhs()

@classmethod
def process_lhs(
    qn: django.db.models.sql.compiler.SQLCompiler,
    connection: django.db.backends.base.base.BaseDatabaseWrapper
) - > tuple

Processes the left-hand side of the search lookup, ensuring the field is cast to a SearchVectorField if it is not already one.

Parameters

Name	Type	Description
qn	django.db.models.sql.compiler.SQLCompiler	The SQL compiler instance used to generate the query string.
connection	django.db.backends.base.base.BaseDatabaseWrapper	The current database connection used to handle backend-specific SQL generation.

Returns

Type	Description
tuple	A tuple containing the SQL string for the left-hand side and the list of parameters to be bound to the query.

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