Minor fix to 'last changed' field, simplify template and logic

backend/backend.py

@@ -76,8 +76,6 @@ def _jinja2_filter_datetime(watch_obj, format="%Y-%m-%d %H:%M:%S"):
 
 @app.template_filter('format_timestamp_timeago')
 def _jinja2_filter_datetimestamp(timestamp, format="%Y-%m-%d %H:%M:%S"):
-    if timestamp == 0:
-        return 'Not yet'
     return timeago.format(timestamp, time.time())
     # return timeago.format(timestamp, time.time())
     # return datetime.datetime.utcfromtimestamp(timestamp).strftime(format)

backend/fetch_site_status.py

@@ -113,10 +113,10 @@ class perform_site_check():
             fetched_md5 = hashlib.md5(stripped_text_from_html.encode('utf-8')).hexdigest()
 
 
-            if self.current_md5 != fetched_md5:
+            if self.current_md5 != fetched_md5: # could be None or False depending on JSON type
 
                 # Don't confuse people by updating as last-changed, when it actually just changed from None..
-                if self.datastore.get_val(self.uuid, 'previous_md5') is not None:
+                if self.datastore.get_val(self.uuid, 'previous_md5'):
                     self.update_obj["last_changed"] = self.timestamp
 
                 self.update_obj["previous_md5"] = fetched_md5

backend/templates/watch-overview.html

@@ -53,7 +53,12 @@
                     {% endif %}
                 </td>
                 <td>{{watch|format_last_checked_time}}</td>
-                <td>{{watch.last_changed|format_timestamp_timeago}}</td>
+                <td>{% if watch.history|length >= 2 and watch.last_changed %}
+                        {{watch.last_changed|format_timestamp_timeago}}
+                    {% else %}
+                        Not yet
+                    {% endif %}
+                </td>
                 <td><a href="/api/checknow?uuid={{ watch.uuid}}{% if request.args.get('tag') %}&tag={{request.args.get('tag')}}{% endif %}" class="pure-button button-small pure-button-primary">Recheck</a>
                     <a href="/edit?uuid={{ watch.uuid}}" class="pure-button button-small pure-button-primary">Edit</a>
                     {% if watch.history|length >= 2 %}