From 73a1637628021cf66a7e234bf6047fbae5893df0 Mon Sep 17 00:00:00 2001
From: Samuel Pietro <samuelpietro.b@gmail.com>
Date: Sat, 23 Nov 2024 22:26:16 -0300
Subject: [PATCH] [feature] Add support for FIND_IN_SET operator

---
 src/Medoo.php        |  8 ++++++++
 tests/SelectTest.php | 26 ++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/src/Medoo.php b/src/Medoo.php
index 5c9eb6ae..6447f991 100644
--- a/src/Medoo.php
+++ b/src/Medoo.php
@@ -1002,6 +1002,14 @@ protected function dataImplode(array $data, array &$map, string $conjunctor): st
                 } elseif ($operator === 'REGEXP') {
                     $stack[] = "{$column} REGEXP {$mapKey}";
                     $map[$mapKey] = [$value, PDO::PARAM_STR];
+                } elseif ($operator === 'FIND_IN_SET') {
+                    $mapKey = $this->mapKey();
+                    $stack[] = "FIND_IN_SET({$mapKey}, {$column})";
+                    if (is_array($value)) {
+                        $map[$mapKey] = [implode(',', $value), PDO::PARAM_STR];
+                    } else {
+                        $map[$mapKey] = [$value, PDO::PARAM_STR];
+                    }
                 } else {
                     throw new InvalidArgumentException("Invalid operator [{$operator}] for column {$column} supplied.");
                 }
diff --git a/tests/SelectTest.php b/tests/SelectTest.php
index 7da61586..2070c5d4 100644
--- a/tests/SelectTest.php
+++ b/tests/SelectTest.php
@@ -712,4 +712,30 @@ public function testSelectWithSingleCharacter($type)
             $this->database->queryString
         );
     }
+
+    /**
+     * @covers ::select()
+     * @covers ::selectContext()
+     * @covers ::isJoin()
+     * @covers ::columnMap()
+     * @covers ::columnPush()
+     * @dataProvider typesProvider
+     */
+    public function testFindInSet($type)
+    {
+        $this->setType($type);
+
+
+        $this->database->select("table", 'column', [
+            "column[FIND_IN_SET]" => ["values", "values_two"]
+        ]);
+
+        $this->assertQuery(
+            <<<EOD
+            SELECT "column" FROM "table" WHERE FIND_IN_SET('values,values_two', "column")
+            EOD,
+            $this->database->queryString
+        );
+    }
+
 }