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lib/functions/st_within.ex
# SPDX-FileCopyrightText: 2025 ash_neo4j contributors <https://github.com/diffo-dev/ash_neo4j/graphs.contributors>
#
# SPDX-License-Identifier: MIT
defmodule AshNeo4j.Functions.StWithin do
@moduledoc """
`st_within(a, b)` — true if `a` is contained by `b`. Argument-flipped
`st_contains`. Mirrors ash_geo / PostGIS `ST_Within`.
Place
|> Ash.Query.filter(st_within(location, ^search_box))
|> Ash.read!()
`evaluate/1` delegates to `StContains` with arguments swapped. No Cypher
pushdown in this slice — the predicate evaluates in memory via
`Ash.Filter.Runtime`. For pushdown shape, use `st_contains(^box, location)`
directly (the pushdown path expects the container property on the LHS).
"""
use Ash.Query.Function, name: :st_within, predicate?: true
def args, do: [[:any, :any]]
def returns, do: [:boolean]
def evaluate(%{arguments: [a, b]}) do
AshNeo4j.Functions.StContains.evaluate(%{arguments: [b, a]})
end
end