a simple grid view (a slice showed only as a querygrid)

as e.g. http://localhost:8080/trash/simplegrid/ple.inria.f14#
— requires to enable trash in myslice/{settings.py,urls.py} though

diff --git a/trash/simplegridview.py b/trash/simplegridview.py
new file mode 100644 (file)
index 0000000..f0f2391
--- /dev/null
+++ b/trash/simplegridview.py
@@ -0,0 +1,84 @@
+# just one instance of QueryGrid, nothing more, nothing less
+from django.views.generic.base import TemplateView
+from django.template import RequestContext
+from django.shortcuts import render_to_response
+
+from manifold.core.query import Query, AnalyzedQuery
+
+from unfold.page import Page
+
+from ui.topmenu import topmenu_items, the_user
+
+from plugins.querygrid import QueryGrid
+
+class SimpleGridView (TemplateView):
+
+    def get (self, request, slicename='ple.inria.f14'):
+
+        page=Page(request)
+        page.expose_js_metadata()
+        metadata = page.get_metadata()
+        resource_md = metadata.details_by_object('resource')
+        resource_fields = [column['name'] for column in resource_md['column']]
+
+        main_query = Query.get('slice').filter_by('slice_hrn', '=', slicename)
+        main_query.select(
+                'slice_hrn',
+                'resource.hrn', 'resource.hostname', 'resource.type', 
+                'resource.network_hrn',
+                'lease.urn',
+                'user.user_hrn',
+                #'application.measurement_point.counter'
+        )
+        # for internal use in the querygrid plugin;
+        # needs to be a unique column present for each returned record
+        main_query_key = 'hrn'
+    
+        query_resource_all = Query.get('resource').select(resource_fields)
+        
+        aq = AnalyzedQuery(main_query, metadata=metadata)
+        page.enqueue_query(main_query, analyzed_query=aq)
+        page.enqueue_query(query_resource_all)
+
+        sq_resource    = aq.subquery('resource')
+
+        resources_as_list = QueryGrid( 
+            page       = page,
+            domid      = 'resources-list',
+            title      = 'List view',
+            # this is the query at the core of the slice list
+            query      = sq_resource,
+            query_all  = query_resource_all,
+            # safer to use 'hrn' as the internal unique key for this plugin
+            id_key     = main_query_key,
+            checkboxes = True,
+            datatables_options = { 
+                'iDisplayLength': 25,
+                'bLengthChange' : True,
+                'bAutoWidth'    : True,
+                },
+            )
+
+        # variables that will get passed to the view-unfold1.html template
+        template_env = {}
+        
+        # define 'unfold_main' to the template engine - the main contents
+        template_env [ 'unfold_main' ] = resources_as_list.render(request)
+    
+        # more general variables expected in the template
+        template_env [ 'title' ] = 'simple %(slicename)s'%locals()
+        # the menu items on the top
+        template_env [ 'topmenu_items' ] = topmenu_items('Slice', request) 
+        # so we can sho who is logged
+        template_env [ 'username' ] = the_user (request) 
+    
+        # don't forget to run the requests
+        page.expose_queries ()
+
+        # the prelude object in page contains a summary of the requirements() for all plugins
+        # define {js,css}_{files,chunks}
+        prelude_env = page.prelude_env()
+        template_env.update(prelude_env)
+        result=render_to_response ('view-unfold1.html',template_env,
+                                   context_instance=RequestContext(request))
+        return result

diff --git a/trash/urls.py b/trash/urls.py
index 0c344ed..a1041cc 100644 (file)
--- a/trash/urls.py
+++ b/trash/urls.py
@@ -1,8 +1,12 @@
 from django.conf.urls           import patterns, include, url
 
-urlpatterns = patterns('',
-                       url(r'^tab/?$',          'trash.sampleviews.tab_view'),
-                       (r'^scroll/?$',          'trash.sampleviews.scroll_view'),
-                       (r'^plugin/?$',          'trash.pluginview.test_plugin_view'),
-                       (r'^dashboard/?$',       'trash.dashboard.dashboard_view'),
+import trash.simplegridview
+
+urlpatterns = patterns(
+    '',
+    url(r'^tab/?$',          'trash.sampleviews.tab_view'),
+    url(r'^scroll/?$',          'trash.sampleviews.scroll_view'),
+    url(r'^plugin/?$',          'trash.pluginview.test_plugin_view'),
+    url(r'^dashboard/?$',       'trash.dashboard.dashboard_view'),
+    url(r'^simplegrid/(?P<slicename>[\w\.]+)/?$', trash.simplegridview.SimpleGridView.as_view()),
 )