Add update workflow support

Partially implements blueprint mistral-dashboard-crud-operations

Change-Id: Idcd728fd5788ff126026628899c3c232eee8470f

mistraldashboard/api.py

@@ -110,6 +110,15 @@ def workflow_delete(request, workflow_name):
     return mistralclient(request).workflows.delete(workflow_name)
 
 
+def workflow_update(request, workflows_definition):
+    """Update workflow.
+
+    :param workflows_definition: Workflows definition
+    """
+
+    return mistralclient(request).workflows.update(workflows_definition)
+
+
 @handle_errors(_("Unable to retrieve workbooks."), [])
 def workbook_list(request):
     """Returns all workbooks."""

mistraldashboard/workflows/forms.py

@@ -143,3 +143,18 @@ class CreateForm(forms.SelfHandlingForm):
             msg = _('Failed to create workflow.')
             redirect = reverse('horizon:mistral:workflows:index')
             exceptions.handle(request, msg, redirect=redirect)
+
+
+class UpdateForm(CreateForm):
+
+    def handle(self, request, data):
+        try:
+            api.workflow_update(request, data['definition'])
+            msg = _('Successfully updated workflow.')
+            messages.success(request, msg)
+
+            return True
+        except Exception:
+            msg = _('Failed to update workflow.')
+            redirect = reverse('horizon:mistral:workflows:index')
+            exceptions.handle(request, msg, redirect=redirect)

mistraldashboard/workflows/tables.py

@@ -31,6 +31,14 @@ class CreateWorkflow(tables.LinkAction):
     icon = "plus"
 
 
+class UpdateWorkflow(tables.LinkAction):
+    name = "update"
+    verbose_name = _("Update Workflow")
+    url = "horizon:mistral:workflows:change_definition"
+    classes = ("ajax-modal",)
+    icon = "pencil"
+
+
 class DeleteWorkflow(tables.DeleteAction):
     @staticmethod
     def action_present(count):
@@ -103,5 +111,5 @@ class WorkflowsTable(tables.DataTable):
     class Meta:
         name = "workflows"
         verbose_name = _("Workflows")
-        table_actions = (CreateWorkflow, DeleteWorkflow)
+        table_actions = (CreateWorkflow, UpdateWorkflow, DeleteWorkflow)
         row_actions = (ExecuteWorkflow, DeleteWorkflow)

mistraldashboard/workflows/templates/workflows/_update.html

@@ -0,0 +1,6 @@
+{% extends "horizon/common/_modal_form.html" %}
+{% load i18n %}
+{% block modal-body-right %}
+  <h3>{% trans "Description:" %}</h3>
+  <p>{% trans "Update workflows with the provided definition." %}</p>
+{% endblock %}

mistraldashboard/workflows/templates/workflows/update.html

@@ -0,0 +1,7 @@
+{% extends 'base.html' %}
+{% load i18n %}
+{% block title %}{% trans "Update Workflow" %}{% endblock %}
+
+{% block main %}
+  {% include 'mistral/workflows/_update.html' %}
+{% endblock %}

mistraldashboard/workflows/urls.py

@@ -27,7 +27,11 @@ urlpatterns = patterns(
     url(r'^select_definition$',
         views.SelectDefinitionView.as_view(),
         name='select_definition'),
+    url(r'^change_definition$',
+        views.ChangeDefinitionView.as_view(),
+        name='change_definition'),
     url(r'^create$', views.CreateView.as_view(), name='create'),
+    url(r'^update$', views.UpdateView.as_view(), name='update'),
     url(WORKFLOWS % 'execute', views.ExecuteView.as_view(), name='execute'),
     url(WORKFLOWS % 'detail', views.DetailView.as_view(), name='detail'),
 )

mistraldashboard/workflows/views.py

@@ -94,6 +94,19 @@ class SelectDefinitionView(forms.ModalFormView):
         return kwargs
 
 
+class ChangeDefinitionView(SelectDefinitionView):
+    modal_header = _("Update Definition")
+    submit_url = reverse_lazy("horizon:mistral:workflows:change_definition")
+    success_url = reverse_lazy('horizon:mistral:workflows:update')
+    page_title = _("Update Definition")
+
+    def get_form_kwargs(self):
+        kwargs = super(ChangeDefinitionView, self).get_form_kwargs()
+        kwargs['next_view'] = UpdateView
+
+        return kwargs
+
+
 class CreateView(forms.ModalFormView):
     template_name = 'mistral/workflows/create.html'
     modal_header = _("Create Workflow")
@@ -111,3 +124,13 @@ class CreateView(forms.ModalFormView):
             initial['definition'] = self.kwargs['definition']
 
         return initial
+
+
+class UpdateView(CreateView):
+    template_name = 'mistral/workflows/update.html'
+    modal_header = _("Update Workflow")
+    form_id = "update_workflow"
+    form_class = mistral_forms.UpdateForm
+    submit_label = _("Update")
+    submit_url = reverse_lazy("horizon:mistral:workflows:update")
+    page_title = _("Update Workflow")