Jan 10, 2022 · Dec 1, 2021 · Dec 1, 2021 · Dec 1, 2021 · Dec 1, 2021 · Dec 14, 2021
diff --git a/tests/test_queries.py b/tests/test_queries.py
    assert hash(query) != hash(where('value'))


 def test_callable_in_path_with_map():
    double = lambda x: x + x
    query = Query().value.map(double) == 10
    assert query({'value': 5})
    assert not query({'value': 10})


 def test_eq():
    query = Query().value == 1
    assert query({'value': 1})
diff --git a/tinydb/queries.py b/tinydb/queries.py
            try:
                # Resolve the path
                for part in self._path:
                    value = value[part]
                    if isinstance(part, str):
                        value = value[part]
                    else:
                        value = part(value)
            except (KeyError, TypeError):
                return False
            else:
            ()
        )

    def map(self, fn: Callable[[Any], Any]) -> 'Query':
        """
        Add a function to the query path. Similar to __getattr__ but for
        arbitrary functions.
        """
        query = type(self)()

        # Now we add the callable to the query path ...
        query._path = self._path + (fn,)

        # ... and update the query hash
        query._hash = ('path', query._path)

        return query

 def where(key: str) -> Query:
    """
Original file line number	Diff line number	Diff line change
Expand Up		@@ -35,6 +35,13 @@ def test_path_and():
		assert hash(query) != hash(where('value'))


		def test_callable_in_path_with_map():
		double = lambda x: x + x
		query = Query().value.map(double) == 10
		assert query({'value': 5})
		assert not query({'value': 10})


		def test_eq():
		query = Query().value == 1
		assert query({'value': 1})
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -218,7 +218,10 @@ def runner(value):
		try:
		# Resolve the path
		for part in self._path:
		value = value[part]
		if isinstance(part, str):
		value = value[part]
		else:
		value = part(value)
		except (KeyError, TypeError):
		return False
		else:
Expand DownExpand Up		@@ -487,6 +490,20 @@ def noop(self) -> QueryInstance:
		()
		)

		def map(self, fn: Callable[[Any], Any]) -> 'Query':
		"""
		Add a function to the query path. Similar to __getattr__ but for
		arbitrary functions.
		"""
		query = type(self)()

		# Now we add the callable to the query path ...
		query._path = self._path + (fn,)

		# ... and update the query hash
		query._hash = ('path', query._path)

		return query

		def where(key: str) -> Query:
		"""
Expand Down