From a0580ad085c2a20134599c1388d3bd376bcb3346 Mon Sep 17 00:00:00 2001
From: Lewis Dale <lewis.dale@fortacode.co.uk>
Date: Sun, 27 Aug 2023 22:03:56 +0100
Subject: [PATCH] Enforce uniqueness

---
 src/Lib/SqliteImageDb.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Lib/SqliteImageDb.php b/src/Lib/SqliteImageDb.php
index e25a0a8..23958f3 100644
--- a/src/Lib/SqliteImageDb.php
+++ b/src/Lib/SqliteImageDb.php
@@ -24,6 +24,9 @@ class SqliteImageDb implements ImageDb {
             quality INTEGER NULLABLE,
             content TEXT NOT NULL
         )');
+
+        // Create a unique index on the path and params
+        $this->db->exec('CREATE UNIQUE INDEX IF NOT EXISTS images_path_width_height_quality ON images (path, width, height, quality)');
     }
 
     public function findImage(string $path, ResizeParams $params): Image | null {