fix error redirecting of image-register

After submitting the "image-register" form in cluster-guide page, page
redirects to the index page other than staying in cluster-guide page.
This patch fixes related issue. Now it will return to cluster-guide
page after registering image.

Closes-Bug: 1636880
Change-Id: I6a74e621a688f1021e14f888b1150a46119874a7

sahara_dashboard/content/data_processing/clusters/image_registry/views.py

@@ -95,6 +95,8 @@ class RegisterImageView(forms.ModalFormView):
 
     def get_context_data(self, **kwargs):
         context = super(RegisterImageView, self).get_context_data(**kwargs)
+        context['action_url'] = ('horizon:project'
+                                 ':data_processing.clusters:register')
         update_context_with_plugin_tags(self.request, context)
         return context
 

sahara_dashboard/content/data_processing/clusters/templates/cluster_wizard/cluster_guide.html

@@ -47,7 +47,7 @@
                     </div>
                     <div>
                         <a class="btn btn-default btn-small btn-create btn-inline ajax-modal"
-                            href="{% url 'horizon:project:data_processing.clusters:register'%}">
+                            href="{% url 'horizon:project:data_processing.clusters:image_register'%}">
                             <span class="fa fa-plus"></span> {% trans "Register Image" %}</a>
                     </div>
                 </div>

sahara_dashboard/content/data_processing/clusters/templates/image_registry/_register_image.html

@@ -4,7 +4,7 @@
 {% load i18n %}
 
 {% block form_id %}register_image_form{% endblock %}
-{% block form_action %}{% url 'horizon:project:data_processing.clusters:register' %}{% endblock %}
+{% block form_action %}{% url action_url %}{% endblock %}
 
 {% block modal-header %}{% trans "Register Image" %}{% endblock %}
 

sahara_dashboard/content/data_processing/clusters/urls.py

@@ -91,6 +91,9 @@ urlpatterns = [url(r'^$', views.IndexView.as_view(), name='index'),
                url(r'^cluster_guide/(?P<reset_cluster_guide>[^/]+)/$',
                    cluster_guide_views.ResetClusterGuideView.as_view(),
                    name='reset_cluster_guide'),
+               url(r'^image_register/$',
+                   cluster_guide_views.ImageRegisterView.as_view(),
+                   name='image_register'),
                url(r'^plugin_select$',
                    cluster_guide_views.PluginSelectView.as_view(),
                    name='plugin_select'),

sahara_dashboard/content/data_processing/clusters/wizard/views.py

@@ -22,6 +22,8 @@ from horizon import views as horizon_views
 from sahara_dashboard.api import sahara as saharaclient
 from sahara_dashboard.content.data_processing.utils \
     import helpers
+import sahara_dashboard.content. \
+    data_processing.clusters.image_registry.views as imgviews
 import sahara_dashboard.content.data_processing.clusters.wizard \
     .forms as wizforms
 
@@ -54,6 +56,17 @@ class ResetClusterGuideView(generic.RedirectView):
         return http.HttpResponseRedirect(reverse_lazy(self.pattern_name))
 
 
+class ImageRegisterView(imgviews.RegisterImageView):
+    success_url = reverse_lazy(
+        'horizon:project:data_processing.clusters:cluster_guide')
+
+    def get_context_data(self, **kwargs):
+        context = super(ImageRegisterView, self).get_context_data(**kwargs)
+        context['action_url'] = ('horizon:project'
+                                 ':data_processing.clusters:image_register')
+        return context
+
+
 class PluginSelectView(forms.ModalFormView):
     form_class = wizforms.ChoosePluginForm
     success_url = reverse_lazy(