"My Checks" page: show the number of failed checks in the page title.

hc/front/templatetags/hc_extras.py

@@ -73,3 +73,11 @@ def sortchecks(checks, key):
 @register.filter
 def trunc(s):
     return s[:150]
+
+
+@register.filter
+def num_down_title(num_down):
+    if num_down:
+        return "%d down – %s" % (num_down, settings.SITE_NAME)
+    else:
+        return settings.SITE_NAME

hc/front/views.py

@@ -24,7 +24,7 @@ from hc.front.forms import (AddWebhookForm, NameTagsForm,
                             TimeoutForm, AddUrlForm, AddEmailForm,
                             AddOpsGenieForm, CronForm, AddSmsForm)
 from hc.front.schemas import telegram_callback
-from hc.front.templatetags.hc_extras import sortchecks
+from hc.front.templatetags.hc_extras import num_down_title, sortchecks
 from hc.lib import jsonschema
 from pytz import all_timezones
 from pytz.exceptions import UnknownTimeZoneError
@@ -35,9 +35,10 @@ VALID_SORT_VALUES = ("name", "-name", "last_ping", "-last_ping", "created")
 
 
 def _tags_statuses(checks):
-    tags, down, grace = {}, {}, {}
+    tags, down, grace, num_down = {}, {}, {}, 0
     for check in checks:
         if check.get_status() == "down":
+            num_down += 1
             for tag in check.tags_list():
                 down[tag] = "down"
         elif check.in_grace_period():
@@ -49,7 +50,7 @@ def _tags_statuses(checks):
 
     tags.update(grace)
     tags.update(down)
-    return tags
+    return tags, num_down
 
 
 @login_required
@@ -61,12 +62,14 @@ def my_checks(request):
     checks = list(Check.objects.filter(user=request.team.user))
     sortchecks(checks, request.profile.sort)
 
-    pairs = list(_tags_statuses(checks).items())
+    tags_statuses, num_down = _tags_statuses(checks)
+    pairs = list(tags_statuses.items())
     pairs.sort(key=lambda pair: pair[0].lower())
 
     ctx = {
         "page": "checks",
         "checks": checks,
+        "num_down": num_down,
         "now": timezone.now(),
         "tags": pairs,
         "ping_endpoint": settings.PING_ENDPOINT,
@@ -93,7 +96,12 @@ def status(request):
             "last_ping": render_to_string("front/last_ping_cell.html", ctx)
         })
 
-    return JsonResponse({"details": details, "tags": _tags_statuses(checks)})
+    tags_statuses, num_down = _tags_statuses(checks)
+    return JsonResponse({
+        "details": details,
+        "tags": tags_statuses,
+        "title": num_down_title(num_down)
+    })
 
 
 def _welcome_check(request):

static/js/checks.js

@@ -297,6 +297,11 @@ $(function () {
                         this.setAttribute("class", "btn btn-xs " + status);
                     }
                 });
+
+                if (document.title != data.title) {
+                    document.title = data.title;
+                }
+
             }
         });
     }

templates/front/my_checks.html

@@ -1,8 +1,7 @@
 {% extends "base.html" %}
 {% load compress staticfiles hc_extras %}
 
-{% block title %}My Checks - {% site_name %}{% endblock %}
-
+{% block title %}{{ num_down|num_down_title }}{% endblock %}
 
 {% block content %}
 <div class="row">

templates/front/snippets/python_requests_fail.html

@@ -2,7 +2,7 @@
 <span class="n">URL</span> <span class="o">=</span> <span class="s2">&quot;{{ ping_url }}&quot;</span>
 
 <span class="k">def</span> <span class="nf">do_work</span><span class="p">():</span>
-    <span class="c1"># Do actual work here.</span>
+    <span class="c1"># Do your number crunching, backup dumping, newsletter sending work here.</span>
     <span class="c1"># Return a truthy value on success.</span>
     <span class="c1"># Return a falsy value or throw an exception on failure.</span>
     <span class="k">return</span> <span class="bp">True</span>

templates/front/snippets/python_requests_fail.txt

@@ -2,7 +2,7 @@ import requests
 URL = "PING_URL"
 
 def do_work():
-    # Do actual work here.
+    # Do your number crunching, backup dumping, newsletter sending work here.
     # Return a truthy value on success.
     # Return a falsy value or throw an exception on failure.
     return True