From 347cd33e139864f2140fc65dd04d68bd49874ac2 Mon Sep 17 00:00:00 2001
From: Bas van den Aakster <bvdaakster@gmail.com>
Date: Sun, 14 Sep 2025 10:22:34 +0200
Subject: [PATCH] Fix model overwrite error when plugin is initialized multiple
 times

- Filter out existing collections with same slugs before adding plugin collections
- Prevents 'Cannot overwrite model once compiled' errors in Next.js apps
- Fixes issue during hot reload and multiple getPayload() calls
- Bump version to 0.1.19
---
 package.json         | 2 +-
 src/payload-types.ts | 5 +++++
 src/plugin.ts        | 7 ++++++-
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/package.json b/package.json
index 1d3c761..8448d49 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@xtr-dev/payload-mailing",
-  "version": "0.1.18",
+  "version": "0.1.19",
   "description": "Template-based email system with scheduling and job processing for PayloadCMS",
   "type": "module",
   "main": "dist/index.js",
diff --git a/src/payload-types.ts b/src/payload-types.ts
index 08838c9..2f762f5 100644
--- a/src/payload-types.ts
+++ b/src/payload-types.ts
@@ -143,6 +143,10 @@ export interface Email {
    * Sender email address (optional, uses default if not provided)
    */
   from?: string | null;
+  /**
+   * Sender display name (optional, e.g., "John Doe" for "John Doe <john@example.com>")
+   */
+  fromName?: string | null;
   /**
    * Reply-to email address
    */
@@ -336,6 +340,7 @@ export interface EmailsSelect<T extends boolean = true> {
   cc?: T;
   bcc?: T;
   from?: T;
+  fromName?: T;
   replyTo?: T;
   subject?: T;
   html?: T;
diff --git a/src/plugin.ts b/src/plugin.ts
index a447526..89ce6b6 100644
--- a/src/plugin.ts
+++ b/src/plugin.ts
@@ -74,10 +74,15 @@ export const mailingPlugin = (pluginConfig: MailingPluginConfig) => (config: Con
     }),
   } satisfies CollectionConfig
 
+  // Filter out any existing collections with the same slugs to prevent duplicates
+  const existingCollections = (config.collections || []).filter(
+    (collection) => collection.slug !== templatesSlug && collection.slug !== emailsSlug
+  )
+
   return {
     ...config,
     collections: [
-      ...(config.collections || []),
+      ...existingCollections,
       templatesCollection,
       emailsCollection,
     ],