Added team invitations

src/pretix/control/templates/pretixcontrol/auth/invite.html

@@ -0,0 +1,31 @@
+{% extends "pretixcontrol/auth/base.html" %}
+{% load bootstrap3 %}
+{% load staticfiles %}
+{% load i18n %}
+{% block content %}
+	<form class="form-signin" action="" method="post">
+        <h3>{% trans "Accept an invitation" %}</h3>
+        <p>
+            {% url "control:auth.login" as loginurl %}
+            {% blocktrans trimmed with login_href='href="'|add:loginurl|add:'"'|safe %}
+                If you already have an account on this site with a different email address, you can
+                <a {{ login_href }}>log in</a> first and then click this link again to accept the
+                invitation with your existing account.
+            {% endblocktrans %}
+        </p>
+		{% bootstrap_form_errors form type='all' layout='inline' %}
+		{% csrf_token %}
+		{% bootstrap_field form.email %}
+		{% bootstrap_field form.password %}
+        {% bootstrap_field form.password_repeat %}
+		<div class="form-group buttons">
+            <a href="{% url "control:auth.login" %}" class="btn btn-link">
+                &laquo; {% trans "Login" %}
+            </a>
+
+			<button type="submit" class="btn btn-primary">
+				{% trans "Register" %}
+			</button>
+		</div>
+	</form>
+{% endblock %}

src/pretix/control/templates/pretixcontrol/email/invitation.txt

@@ -0,0 +1,16 @@
+{% load i18n %}{% blocktrans with url=url|safe %}Hello,
+
+you have been invited to the team of an event that uses pretix for their
+ticket sales.
+
+Event: {{ event }}
+
+If you want to join that team, just click on the following link:
+{{ url }}
+
+If you do not want to join, you can safely ignore or delete this email.
+
+Best regards,
+
+Your pretix team
+{% endblocktrans %}

src/pretix/control/templates/pretixcontrol/event/permissions.html

@@ -26,7 +26,16 @@
                     <tbody>
                         {% for form in formset %}
                             <tr>
-                                <td>{{ form.id }}{{ form.instance.user }}</td>
+                                <td>
+                                    {{ form.id }}
+                                    {% if form.instance.user %}
+                                        {{ form.instance.user }}
+                                    {% else %}
+                                        {{ form.instance.invite_email }}
+                                        <span class="fa fa-envelope-o" data-toggle="tooltip"
+                                            title="{% trans "invited, pending response" %}"></span>
+                                    {% endif %}
+                                </td>
                                 <td>{{ form.can_change_settings }}</td>
                                 <td>{{ form.can_change_items }}</td>
                                 <td>{{ form.can_view_orders }}</td>
@@ -37,6 +46,19 @@
                                 <td>{{ form.DELETE }}</td>
                             </tr>
                         {% endfor %}
+                    </tbody>
+                    <tfoot>
+                        <tr>
+                            <td colspan="9">
+                                <strong>{% trans "Adding a new user" %}</strong><br>
+                                {% blocktrans trimmed %}
+                                    To add a new user, you can enter their email address here. If they already have a
+                                    pretix account, they will immediately be added to the event. Otherwise, they will
+                                    be sent an email with an invitation.
+                                {% endblocktrans %}
+                            </td>
+
+                        </tr>
                         <tr>
                             <td>
                                 <div class="row-fluid">
@@ -53,7 +75,7 @@
                             <td>{{ add_form.can_change_vouchers }}</td>
                             <td>{{ add_form.can_view_vouchers }}</td>
                         </tr>
-                    </tbody>
+                    </tfoot>
                 </table>
             </div>
 		</fieldset>