Add settings for the cookie page and the digital emissions page (#287)

* Add settings for the cookie page and the digital emissions page

Author: helenb

tbx/core/context_processors.py

@@ -1,8 +1,16 @@
 from django.conf import settings
 
+from tbx.core.models import ImportantPageSettings
+
 
 def global_vars(request):
     return {
         "GOOGLE_TAG_MANAGER_ID": getattr(settings, "GOOGLE_TAG_MANAGER_ID", None),
         "SEO_NOINDEX": settings.SEO_NOINDEX,
+        "COOKIE_POLICY_PAGE": ImportantPageSettings.for_request(
+            request
+        ).cookie_policy_page,
+        "CARBON_EMISSIONS_PAGE": ImportantPageSettings.for_request(
+            request
+        ).carbon_emissions_page,
     }

tbx/core/migrations/0035_add_important_page_settings.py

@@ -0,0 +1,60 @@
+# Generated by Django 4.2.11 on 2024-07-22 13:39
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("wagtailcore", "0091_remove_revision_submitted_for_moderation"),
+        ("torchbox", "0034_add_earth_colour_theme"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="ImportantPageSettings",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "carbon_emissions_page",
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.SET_NULL,
+                        related_name="+",
+                        to="wagtailcore.page",
+                    ),
+                ),
+                (
+                    "cookie_policy_page",
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.SET_NULL,
+                        related_name="+",
+                        to="wagtailcore.page",
+                    ),
+                ),
+                (
+                    "site",
+                    models.OneToOneField(
+                        editable=False,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to="wagtailcore.site",
+                    ),
+                ),
+            ],
+            options={
+                "abstract": False,
+            },
+        ),
+    ]

tbx/core/models.py

@@ -247,3 +247,27 @@ class MainMenu(BaseSiteSetting):
     panels = [
         FieldPanel("menu"),
     ]
+
+
+@register_setting
+class ImportantPageSettings(BaseSiteSetting):
+    cookie_policy_page = models.ForeignKey(
+        "wagtailcore.Page",
+        blank=True,
+        null=True,
+        on_delete=models.SET_NULL,
+        related_name="+",
+    )
+
+    carbon_emissions_page = models.ForeignKey(
+        "wagtailcore.Page",
+        blank=True,
+        null=True,
+        on_delete=models.SET_NULL,
+        related_name="+",
+    )
+
+    panels = [
+        FieldPanel("cookie_policy_page"),
+        FieldPanel("carbon_emissions_page"),
+    ]

tbx/project_styleguide/templates/patterns/molecules/carbon-impact/carbon-impact.html

@@ -1,8 +1,14 @@
+{% load wagtailcore_tags %}
+
 <div class="grid footer__carbon-impact-container" data-page-carbon>
     <div class="grid__carbon-impact">
         <div class="footer__carbon-impact">
             <p class="footer__carbon-impact-text">Loading the site homepage emits just <span>0.07g of CO2</span> per view.</p>
-            <p class="footer__carbon-impact-text"><a href="/about/digital-emissions/" class="footer__carbon-impact-link">Find out more about our carbon impact</a></p>
+            {% if CARBON_EMISSIONS_PAGE %}
+                <p class="footer__carbon-impact-text">
+                    <a href="{% pageurl CARBON_EMISSIONS_PAGE %}" class="footer__carbon-impact-link">Find out more about our carbon impact</a>
+                </p>
+            {% endif %}
         </div>
     </div>
 </div>

tbx/project_styleguide/templates/patterns/molecules/cookie-message/cookie-message.html

@@ -1,7 +1,8 @@
+{% load wagtailcore_tags %}
 <div data-cookie-message class="cookie-message {{ classes }}">
     <div class="cookie-message__container grid">
         <div class="cookie-message__message grid__cookie-message">
-            <p>We use cookies to measure how you use the website. We want our site to be easy for you to use; understanding how you interact with it helps us know that. <a aria-label="Find out more about how we use cookies" href="/cookies/" class="cookie-message__link">Find out more</a>.</p>
+            <p>We use cookies to measure how you use the website. We want our site to be easy for you to use; understanding how you interact with it helps us know that. {% if COOKIE_POLICY_PAGE %}<a aria-label="Find out more about how we use cookies" href="{% pageurl COOKIE_POLICY_PAGE %}" class="cookie-message__link">Find out more</a>{% endif %}.</p>
         </div>
         <div class="cookie-message__action grid__cookie-message">
             {# ids are needed by GTM #}