From f43178690703c9aa71c6ef8cafbd1c92383cc557 Mon Sep 17 00:00:00 2001
From: Bas van den Aakster <bvdaakster@gmail.com>
Date: Mon, 6 Oct 2025 23:48:23 +0200
Subject: [PATCH] Fix template relationship population in sendEmail and bump
 version to 0.4.18
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The sendEmail function now properly populates the template relationship field when using template-based emails. This ensures:
- Template relationship is set on the email document
- templateSlug field is auto-populated via beforeChange hook
- beforeSend hook has access to the full template relationship
- Proper record of which template was used for each email

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
---
 package.json     |  2 +-
 src/sendEmail.ts | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 52a6ea7..7409fb6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@xtr-dev/payload-mailing",
-  "version": "0.4.17",
+  "version": "0.4.18",
   "description": "Template-based email system with scheduling and job processing for PayloadCMS",
   "type": "module",
   "main": "dist/index.js",
diff --git a/src/sendEmail.ts b/src/sendEmail.ts
index 3b6d624..9768aad 100644
--- a/src/sendEmail.ts
+++ b/src/sendEmail.ts
@@ -50,6 +50,22 @@ export const sendEmail = async <TEmail extends BaseEmailDocument = BaseEmailDocu
   let emailData: Partial<TEmail> = { ...options.data } as Partial<TEmail>
 
   if (options.template) {
+    // Find the template document to get its ID for the relationship field
+    const templatesCollection = mailingConfig.collections.templates || 'email-templates'
+    const { docs: templateDocs } = await payload.find({
+      collection: templatesCollection as any,
+      where: {
+        slug: {
+          equals: options.template.slug,
+        },
+      },
+      limit: 1,
+    })
+
+    if (!templateDocs || templateDocs.length === 0) {
+      throw new Error(`Template not found: ${options.template.slug}`)
+    }
+
     const { html, text, subject } = await renderTemplate(
       payload,
       options.template.slug,
@@ -58,6 +74,7 @@ export const sendEmail = async <TEmail extends BaseEmailDocument = BaseEmailDocu
 
     emailData = {
       ...emailData,
+      template: templateDocs[0].id,
       subject,
       html,
       text,