From c5b2f181774edfad7f063ead619118ef867f37c3 Mon Sep 17 00:00:00 2001
From: Warren Chen <warrenchen@innovedus.com>
Date: Thu, 12 Feb 2026 12:06:04 +0900
Subject: [PATCH] Add GA4 integration with measurement ID and context processor

---
 innovedus_cms/mysite/context_processors.py | 7 +++++++
 innovedus_cms/mysite/settings/base.py      | 4 ++++
 innovedus_cms/mysite/templates/base.html   | 9 +++++++++
 3 files changed, 20 insertions(+)
 create mode 100644 innovedus_cms/mysite/context_processors.py

diff --git a/innovedus_cms/mysite/context_processors.py b/innovedus_cms/mysite/context_processors.py
new file mode 100644
index 0000000..ee31c19
--- /dev/null
+++ b/innovedus_cms/mysite/context_processors.py
@@ -0,0 +1,7 @@
+from django.conf import settings
+
+
+def ga4(request):
+    return {
+        "ga4_measurement_id": getattr(settings, "GA4_MEASUREMENT_ID", ""),
+    }
diff --git a/innovedus_cms/mysite/settings/base.py b/innovedus_cms/mysite/settings/base.py
index e040ad4..4b43aa4 100644
--- a/innovedus_cms/mysite/settings/base.py
+++ b/innovedus_cms/mysite/settings/base.py
@@ -26,6 +26,9 @@ def env_list(name, default):
     return default
 
 
+GA4_MEASUREMENT_ID = os.environ.get("GA4_MEASUREMENT_ID", "").strip()
+
+
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/5.2/howto/deployment/checklist/
 
@@ -87,6 +90,7 @@ TEMPLATES = [
                 "django.contrib.messages.context_processors.messages",
                 "wagtail.contrib.settings.context_processors.settings",
                 "home.context_processors.navigation_pages",
+                "mysite.context_processors.ga4",
             ],
         },
     },
diff --git a/innovedus_cms/mysite/templates/base.html b/innovedus_cms/mysite/templates/base.html
index a406f9a..f34b3cf 100644
--- a/innovedus_cms/mysite/templates/base.html
+++ b/innovedus_cms/mysite/templates/base.html
@@ -17,6 +17,15 @@
         <meta name="description" content="{{ page.search_description }}" />
         {% endif %}
         <meta name="viewport" content="width=device-width, initial-scale=1" />
+        {% if ga4_measurement_id %}
+        <script async src="https://www.googletagmanager.com/gtag/js?id={{ ga4_measurement_id }}"></script>
+        <script>
+            window.dataLayer = window.dataLayer || [];
+            function gtag(){dataLayer.push(arguments);}
+            gtag('js', new Date());
+            gtag('config', '{{ ga4_measurement_id }}');
+        </script>
+        {% endif %}
 
         {# Force all links in the live preview panel to be opened in a new tab #}
         {% if request.in_preview_panel %}