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database/migrations/2025_12_05_204650_add_unique_index_to_galleries_images_path.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('galleries', function (Blueprint $table) {
+            if (! Schema::hasColumn('galleries', 'images_path')) {
+                return;
+            }
+
+            $duplicates = DB::table('galleries')
+                ->select('images_path', DB::raw('COUNT(*) as aggregate'))
+                ->whereNotNull('images_path')
+                ->groupBy('images_path')
+                ->having('aggregate', '>', 1)
+                ->pluck('images_path')
+                ->all();
+
+            if (! empty($duplicates)) {
+                foreach ($duplicates as $path) {
+                    $idsToKeep = DB::table('galleries')
+                        ->where('images_path', $path)
+                        ->orderBy('id')
+                        ->limit(1)
+                        ->pluck('id');
+
+                    DB::table('galleries')
+                        ->where('images_path', $path)
+                        ->whereNotIn('id', $idsToKeep)
+                        ->delete();
+                }
+            }
+
+            $table->unique('images_path');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('galleries', function (Blueprint $table) {
+            if (! Schema::hasColumn('galleries', 'images_path')) {
+                return;
+            }
+
+            $table->dropUnique('galleries_images_path_unique');
+        });
+    }
+};