From f5d6a36574b7ddf5e1a00395f553a0f872fb9f16 Mon Sep 17 00:00:00 2001
From: Ian Ker-Seymer <ian.kerseymer@shopify.com>
Date: Mon, 17 Mar 2025 17:43:57 -0400
Subject: [PATCH] Stringify properties before filtering (#1929)

---
 lib/liquid/standardfilters.rb            |  4 +++-
 test/integration/standard_filter_test.rb | 13 +++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/lib/liquid/standardfilters.rb b/lib/liquid/standardfilters.rb
index 618cd71b..63d080dd 100644
--- a/lib/liquid/standardfilters.rb
+++ b/lib/liquid/standardfilters.rb
@@ -979,8 +979,10 @@ module Liquid
     attr_reader :context
 
     def filter_array(input, property, target_value, default_value = [], &block)
-      ary = InputIterator.new(input, context)
+      property = Liquid::Utils.to_s(property)
+      return default_value if property.empty?
 
+      ary = InputIterator.new(input, context)
       return default_value if ary.empty?
 
       block.call(ary) do |item|
diff --git a/test/integration/standard_filter_test.rb b/test/integration/standard_filter_test.rb
index ef127832..913dfa25 100644
--- a/test/integration/standard_filter_test.rb
+++ b/test/integration/standard_filter_test.rb
@@ -1061,6 +1061,19 @@ class StandardFiltersTest < Minitest::Test
     assert_template_result(expected_output, template, { "array" => array })
   end
 
+  def test_where_with_non_string_property
+    array = [
+      { "handle" => "alpha", "{}" => true },
+      { "handle" => "beta", "{}" => false },
+      { "handle" => "gamma", "{}" => false },
+      { "handle" => "delta", "{}" => true },
+    ]
+    template = "{{ array | where: some_property, true | map: 'handle' | join: ' ' }}"
+    expected_output = "alpha delta"
+
+    assert_template_result(expected_output, template, { "array" => array, "some_property" => {} })
+  end
+
   def test_where_string_keys
     input = [
       "alpha", "beta", "gamma", "delta"