Show the number of CFs a patch has been on

Per discussions at the developer meeting, show the number of CFs a patch
has been on, and make it possible to sort on this value.

Author: mhagander

pgcommitfest/commitfest/templates/commitfest.html

@@ -65,6 +65,7 @@ <h3>{{p.is_open|yesno:"Active patches,Closed patches"}}</h3>
    <th>Author</th>
    <th>Reviewers</th>
    <th>Committer</th>
+   <th>{%if p.is_open%}<a href="#" style="color:#333333;" onclick="return sortpatches(3);">Num cfs</a>{%if sortkey == 3%}<div style="float:right;"><i class="glyphicon glyphicon-arrow-down"></i></div>{%endif%}{%else%}Num cfs{%endif%}</th>
    <th>{%if p.is_open%}<a href="#" style="color:#333333;" onclick="return sortpatches(1);">Latest activity</a>{%if sortkey == 1%}<div style="float:right;"><i class="glyphicon glyphicon-arrow-down"></i></div>{%endif%}{%else%}Latest activity{%endif%}</th>
    <th>{%if p.is_open%}<a href="#" style="color:#333333;" onclick="return sortpatches(2);">Latest mail</a>{%if sortkey == 2%}<div style="float:right;"><i class="glyphicon glyphicon-arrow-down"></i></div>{%endif%}{%else%}Latest mail{%endif%}</th>
 {%if user.is_staff%}
@@ -86,6 +87,7 @@ <h3>{{p.is_open|yesno:"Active patches,Closed patches"}}</h3>
    <td>{{p.author_names|default:''}}</td>
    <td>{{p.reviewer_names|default:''}}</td>
    <td>{{p.committer|default:''}}</td>
+   <td>{{p.num_cfs}}</td>
    <td style="white-space: nowrap;">{{p.modified|date:"Y-m-d"}}<br/>{{p.modified|date:"H:i"}}</td>
    <td style="white-space: nowrap;">{{p.lastmail|date:"Y-m-d"}}<br/>{{p.lastmail|date:"H:i"}}</td>
 {%if user.is_staff%}

pgcommitfest/commitfest/views.py

@@ -159,6 +159,8 @@ def commitfest(request, cfid):
 			ordering = ['-is_open', 'modified', 'created',]
 		elif sortkey==2:
 			ordering = ['-is_open', 'lastmail', 'created',]
+		elif sortkey==3:
+			ordering = ['-is_open', '-num_cfs', 'modified', 'created']
 		else:
 			sortkey=0
 	else:
@@ -173,6 +175,7 @@ def commitfest(request, cfid):
 		'author_names':"SELECT string_agg(first_name || ' ' || last_name || ' (' || username || ')', ', ') FROM auth_user INNER JOIN commitfest_patch_authors cpa ON cpa.user_id=auth_user.id WHERE cpa.patch_id=commitfest_patch.id",
 		'reviewer_names':"SELECT string_agg(first_name || ' ' || last_name || ' (' || username || ')', ', ') FROM auth_user INNER JOIN commitfest_patch_reviewers cpr ON cpr.user_id=auth_user.id WHERE cpr.patch_id=commitfest_patch.id",
 		'is_open':'commitfest_patchoncommitfest.status IN (%s)' % ','.join([str(x) for x in PatchOnCommitFest.OPEN_STATUSES]),
+		'num_cfs': 'SELECT count(1) FROM commitfest_patchoncommitfest pcf WHERE pcf.patch_id=commitfest_patch.id',
 	}).order_by(*ordering))
 
 	# Generate patch status summary.