add global variables (#5027)

hobo/environment/models.py

@@ -1,13 +1,36 @@
 import datetime
 import urllib2
+import json
 
 from django.db import models
 from django.utils.timezone import now
 from django.utils.translation import ugettext_lazy as _
+from django.core.exceptions import ValidationError
 
 from .utils import Zone
 
 
+class Variable(models.Model):
+    name = models.CharField(max_length=100, verbose_name=_('name'),
+            unique=True)
+    value = models.TextField(verbose_name=_('value'),
+            blank=True,
+            help_text=_('start with [ or { for a JSON document'))
+
+    @property
+    def json(self):
+        if self.value and self.value[0] in '{[':
+            return json.loads(self.value)
+        return self.value
+
+    def clean(self):
+        if self.value and self.value[0] in '{[':
+            try:
+                json.loads(self.value)
+            except ValueError:
+                raise ValidationError('invalid JSON document')
+
+
 class ServiceBase(models.Model):
     class Meta:
         abstract = True

hobo/environment/templates/environment/home.html

@@ -15,6 +15,19 @@
     <button disabled="disabled">{% trans 'Save' %}</button>
   </form>
 
+  <h2>{% trans 'Variables' %}</h2>
+
+  <form class="small">
+    {% for variable in variables %}
+    <p>
+      <label class="update-variable" data-variable-id="{{ variable.id }}">{{ variable.name }}</label>
+      <input type="text" size="80" value="{{ variable.value }}" readonly>
+      <a href="delete-variable/{{ variable.id }}" class="delete-variable" title="{% trans 'Delete variable' %}"></a>
+    </p>
+    {% endfor %}
+    <button id="new-variable">{% trans 'Add new variable' %}</button>
+  </form>
+
   <h2>{% trans 'Services' %}</h2>
 
   <p>
@@ -77,6 +90,35 @@ jQuery.fn.extend({
 });
 
 $(function() {
+
+  $('#new-variable').click(function() {
+    $.get('new-variable', function(data) {
+      var form = $(data).find('form');
+      $(form).attr('action', 'new-variable');
+      $(form).dialog({modal: true, title: '{% trans "Add new variable" %}', width: 'auto'});
+    });
+    event.preventDefault();
+  });
+
+  $('.update-variable').click(function() {
+    var variable_id = $(this).data('variable-id');
+    $.get('update-variable/' + variable_id, function(data) {
+      var form = $(data).find('form');
+      $(form).attr('action', 'update-variable/' + variable_id);
+      $(form).dialog({modal: true, title: '{% trans "Update variable" %}', width: 'auto'});
+    });
+    event.preventDefault();
+  });
+
+  $('a.delete-variable').click(function() {
+    var url = $(this).attr('href');
+    $.get($(this).attr('href'), function(data) {
+      var form = $(data).find('form');
+      $(form).dialog({modal: true, title: '{% trans "Variable deletion" %}', width: 'auto'});f
+    });
+    event.preventDefault();
+  });
+
   $('#new-service').change(function() {
     var service_id = $(this).val();
     $.get('new-' + service_id, function(data) {

hobo/environment/templates/environment/variable_confirm_delete.html

@@ -0,0 +1,12 @@
+{% extends "hobo/base.html" %}
+{% load i18n  %}
+
+{% block content %}
+<form action="{% url 'delete-variable' object.id %}" method="post">
+  {% csrf_token %}
+  {% blocktrans with title=object.name %}
+  Are you sure you want to delete "{{ title }}"?
+  {% endblocktrans %}
+  <button class="enable-on-change">{% trans 'Delete' %}</button>
+</form>
+{% endblock %}

hobo/environment/templates/environment/variable_form.html

@@ -0,0 +1,21 @@
+{% extends "hobo/base.html" %}
+{% load i18n %}
+
+{% block appbar %}
+<h2>Variable</h2>
+<span><a href="./">{% trans 'Back to settings' %}</a></span>
+{% endblock %}
+
+{% block content %}
+
+    <form method="post" enctype="multipart/form-data">
+      <div id="form-content">
+        {% csrf_token %}
+        {{ form.as_p }}
+      </div>
+      {% block buttons %}
+      <button class="enable-on-change">{% trans 'Save' %}</button>
+      {% endblock %}
+    </form>
+
+{% endblock %}

hobo/environment/urls.py

@@ -4,6 +4,11 @@ from .views import *
 
 urlpatterns = patterns('',
     url(r'^$', HomeView.as_view(), name='environment-home'),
+    url(r'^new-variable$', VariableCreateView.as_view()),
+    url(r'^update-variable/(?P<pk>\w+)$', VariableUpdateView.as_view(),
+        name='update-variable'),
+    url(r'^delete-variable/(?P<pk>\w+)$', VariableDeleteView.as_view(),
+        name='delete-variable'),
     url(r'^check_operational/(?P<service>\w+)/(?P<slug>[\w-]+)$',
         operational_check_view, name='operational-check'),
     url(r'^new-(?P<service>\w+)$', ServiceCreateView.as_view()),

hobo/environment/views.py

@@ -7,7 +7,7 @@ from django.http import HttpResponse
 from django.views.generic.base import TemplateView
 from django.views.generic.edit import CreateView, UpdateView, DeleteView
 
-from .models import Authentic, Wcs, AVAILABLE_SERVICES
+from .models import Variable, Authentic, Wcs, AVAILABLE_SERVICES
 from . import forms, utils
 
 
@@ -23,12 +23,28 @@ class HomeView(TemplateView):
     def get_context_data(self, **kwargs):
         context = super(HomeView, self).get_context_data(**kwargs)
         context['url_template'] = settings.SERVICE_URL_TEMPLATE
+        context['variables'] = Variable.objects.all()
         context['available_services'] = [
                 AvailableService(x) for x in AVAILABLE_SERVICES]
         context['installed_services'] = utils.get_installed_services()
         return context
 
 
+class VariableCreateView(CreateView):
+    model = Variable
+    success_url = reverse_lazy('environment-home')
+
+
+class VariableUpdateView(UpdateView):
+    model = Variable
+    success_url = reverse_lazy('environment-home')
+
+
+class VariableDeleteView(DeleteView):
+    model = Variable
+    success_url = reverse_lazy('environment-home')
+
+
 class ServiceCreateView(CreateView):
     success_url = reverse_lazy('environment-home')
 
@@ -118,11 +134,19 @@ def operational_check_view(request, service, slug, **kwargs):
 
 def installed_services_json_view(request, **kwargs):
     response = HttpResponse(content_type='application/json')
-    json.dump([x.as_dict() for x in utils.get_installed_services()], response)
+    json.dump({
+        'services': [x.as_dict() for x in utils.get_installed_services()],
+        'variables': dict(((v.name, v.json)
+            for v in Variable.objects.all())),
+        }, response)
     return response
 
 
 def operational_services_json_view(request, **kwargs):
     response = HttpResponse(content_type='application/json')
-    json.dump([x.as_dict() for x in utils.get_operational_services()], response)
+    json.dump({
+        'services': [x.as_dict() for x in utils.get_operational_services()],
+        'variables': dict(((v.name, v.json)
+            for v in Variable.objects.all())),
+        }, response)
     return response

hobo/static/css/style.css

@@ -15,12 +15,13 @@ p.being-deployed {
   padding-left: 2em;
 }
 
-a.delete-service {
+a.delete-service, a.delete-variable {
   float: right;
   text-decoration: none;
 }
 
-a.delete-service:after {
+a.delete-service:after, a.delete-variable:after {
   font: normal 1.5em FontAwesome;
   content:"\f057";
-}
+}
+