Add welcome email, send email when user is created

bothub/authentication/models.py

@@ -9,6 +9,7 @@
 from django.template.loader import render_to_string
 from django.conf import settings
 from django.core.exceptions import ValidationError
+from django.dispatch import receiver
 
 
 user_nickname_re = _lazy_re_compile(r'^[-a-zA-Z0-9_]+\Z')
@@ -101,6 +102,21 @@ class Meta:
     def token_generator(self):
         return PasswordResetTokenGenerator()
 
+    def send_welcome_email(self):
+        context = {
+            'name': self.name,
+        }
+        send_mail(
+            _('Welcome to Bothub'),
+            render_to_string(
+                'authentication/emails/welcome.txt',
+                context),
+            None,
+            [self.email],
+            html_message=render_to_string(
+                'authentication/emails/welcome.html',
+                context))
+
     def make_password_reset_token(self):
         return self.token_generator.make_token(self)
 
@@ -126,3 +142,9 @@ def send_reset_password_email(self):
 
     def check_password_reset_token(self, token):
         return self.token_generator.check_token(self, token)
+
+
+@receiver(models.signals.post_save, sender=User)
+def send_welcome_email(instance, created, **kwargs):
+    if created:
+        instance.send_welcome_email()

bothub/authentication/templates/authentication/emails/welcome.html

@@ -0,0 +1,18 @@
+{% extends 'bothub/emails/base.html' %}
+
+{% load staticfiles i18n %}
+
+{% block before-content %}
+<tr>
+    <td align="center" style="padding-top: 20px;">
+        <img src="{% static 'authentication/emails/welcome.png' %}" alt="{% trans 'Welcome to Bothub' %}" width="100%" style="max-width: 388px; display: block;" />
+        <h1 style="font-size: 24px;">{% trans 'Welcome to Bothub' %}</h1>
+    </td>
+</tr>
+{% endblock %}
+
+{% block main-content %}
+    <p style="margin: 32px 0; text-align: center;"><b>{% blocktrans %}Hello, {{ name }}!{% endblocktrans %}</b></p>
+    <p align="justify">{% trans 'You\'ve successfully signed up for Bothub and now you can start creating, improving and translating bots on the platform.' %}</p>
+    <p align="justify">{% trans 'We are happy to have you with us and hope you enjoy Bothub.' %}</p>
+{% endblock %}

bothub/authentication/templates/authentication/emails/welcome.txt

@@ -0,0 +1,5 @@
+{% load i18n %}{% trans 'Welcome to Bothub' %}
+
+{% blocktrans %}Hello, {{ name }}!{% endblocktrans %}
+{% trans 'You\'ve successfully signed up for Bothub and now you can start creating, improving and translating bots on the platform.' %}
+{% trans 'We are happy to have you with us and hope you enjoy Bothub.' %}

bothub/urls.py

@@ -1,11 +1,30 @@
 from django.contrib import admin
 from django.urls import path, include
+from django.conf import settings
 from rest_framework.documentation import include_docs_urls
 
 from bothub.api.routers import router as bothub_api_routers
 
+
 urlpatterns = [
     path('api/', include(bothub_api_routers.urls)),
     path('docs/', include_docs_urls(title='API Documentation')),
     path('admin/', admin.site.urls),
 ]
+
+if settings.DEBUG:
+    def render_template(template_name, **kwargs):
+        def wrapper(request):
+            from django.shortcuts import render
+            return render(request, template_name, kwargs)
+        return wrapper
+
+    urlpatterns += [
+        path('emails/', include([
+            path(
+                'welcome/',
+                render_template(
+                    'authentication/emails/welcome.html',
+                    name='Douglas')),
+        ])),
+    ]