QueryTransformer#

class langchain.chains.query_constructor.parser.QueryTransformer(
*args: Any,
allowed_comparators: Sequence[Comparator] | None = None,
allowed_operators: Sequence[Operator] | None = None,
allowed_attributes: Sequence[str] | None = None,
**kwargs: Any,
)[source]#

Transform a query string into an intermediate representation.

Methods

__init__(*args[, allowed_comparators, ...])

args(*items)

date(item)

datetime(item)

false()

float(item)

func_call(func_name, args)

int(item)

list(item)

program(*items)

string(item)

transform(tree)

Transform the given tree, and return the final result

true()

Parameters:

  • args (Any)

  • allowed_comparators (Sequence[Comparator] | None)

  • allowed_operators (Sequence[Operator] | None)

  • allowed_attributes (Sequence[str] | None)

  • kwargs (Any)

__init__(
*args: Any,
allowed_comparators: Sequence[Comparator] | None = None,
allowed_operators: Sequence[Operator] | None = None,
allowed_attributes: Sequence[str] | None = None,
**kwargs: Any,
)[source]#
Parameters:

  • args (Any)

  • allowed_comparators (Sequence[Comparator] | None)

  • allowed_operators (Sequence[Operator] | None)

  • allowed_attributes (Sequence[str] | None)

  • kwargs (Any)

args(*items: Any) → tuple[source]#
Parameters:

items (Any)

Return type:

tuple

date(
item: Any,
) → ISO8601Date[source]#
Parameters:

item (Any)

Return type:

ISO8601Date

datetime(
item: Any,
) → ISO8601DateTime[source]#
Parameters:

item (Any)

Return type:

ISO8601DateTime

false() → bool[source]#
Return type:

bool

float(item: Any) → float[source]#
Parameters:

item (Any)

Return type:

float

func_call(
func_name: Any,
args: list,
) → FilterDirective[source]#
Parameters:

  • func_name (Any)

  • args (list)

Return type:

FilterDirective

int(item: Any) → int[source]#
Parameters:

item (Any)

Return type:

int

list(item: Any) → list[source]#
Parameters:

item (Any)

Return type:

list

program(*items: Any) → tuple[source]#
Parameters:

items (Any)

Return type:

tuple

string(item: Any) → str[source]#
Parameters:

item (Any)

Return type:

str

transform(
tree: Tree[_Leaf_T],
) → _Return_T#

Transform the given tree, and return the final result

Parameters:

tree (Tree[_Leaf_T])

Return type:

_Return_T

true() → bool[source]#
Return type:

bool