Add ability to delete unused metapackages

app/blueprints/admin/admin.py

@@ -150,6 +150,16 @@ def admin_page():
 			else:
 				flash("No downloads to create", "danger")
 
+			return redirect(url_for("admin.admin_page"))
+
+		elif action == "delmetapackages":
+			query = MetaPackage.query.filter(~MetaPackage.dependencies.any(), ~MetaPackage.packages.any())
+			count = query.count()
+			query.delete(synchronize_session=False)
+			db.session.commit()
+
+			flash("Deleted " + str(count) + " unused meta packages", "success")
+			return redirect(url_for("admin.admin_page"))
 		else:
 			flash("Unknown action: " + action, "danger")
 

app/blueprints/metapackages/__init__.py

@@ -24,7 +24,10 @@ from app.models import *
 
 @bp.route("/metapackages/")
 def list_all():
-	mpackages = MetaPackage.query.order_by(db.asc(MetaPackage.name)).all()
+	mpackages = db.session.query(MetaPackage, func.count(MetaPackage.id)) \
+			.select_from(MetaPackage).outerjoin(MetaPackage.packages) \
+			.order_by(db.asc(MetaPackage.name)) \
+			.group_by(MetaPackage.id).all()
 	return render_template("meta/list.html", mpackages=mpackages)
 
 @bp.route("/metapackages/<name>/")

app/templates/admin/list.html

@@ -25,15 +25,17 @@
 					<input type="hidden" name="csrf_token" value="{{ csrf_token() }}" />
 					<div class="row px-3">
 						<select name="action" class="custom-select col">
-							<option value="delstuckreleases" selected>Delete stuck releases</option>
-							<option value="checkreleases">Validate all Zip releases</option>
+							<option value="cleanuploads" selected>Delete unreachable uploads</option>
+							<option value="delmetapackages">Delete unused meta packages</option>
+							<option value="delstuckreleases">Delete stuck releases</option>
 							<option value="reimportpackages">Reimport meta</option>
+							<option value="recalcscores">Recalculate package scores</option>
+							<option value="div">------</option>
+							<option value="checkreleases">Validate all Zip releases</option>
 							<option value="importmodlist">Import forum topics</option>
 							<option value="importforeign">Import foreign release downloads</option>
-							<option value="recalcscores">Recalculate package scores</option>
 							<option value="checkusers">Check forum users</option>
 							<option value="importscreenshots">Import screenshots from VCS</option>
-							<option value="cleanuploads">Delete unreachable uploads</option>
 						</select>
 						<input type="submit" value="Perform" class="col-sm-auto btn btn-primary ml-2" />
 					</div>

app/templates/meta/list.html

@@ -5,11 +5,36 @@ Meta Packages
 {% endblock %}
 
 {% block content %}
-	<ul>
-		{% for meta in mpackages %}
-			<li><a href="{{ url_for('metapackages.view', name=meta.name) }}">{{ meta.name }}</a> ({{ meta.packages.filter_by(soft_deleted=False, approved=True).all() | count }} packages)</li>
+	<div class="list-group">
+		<div class="list-group-item">
+			<div class="row text-muted">
+				<div class="col-sm">
+					{{ _("Name") }}
+				</div>
+
+				<div class="col-sm-1 text-center">
+					{{ _("Packages") }}
+				</div>
+			</div>
+		</div>
+
+		{% for pair in mpackages %}
+			{% set meta = pair[0] %}
+			{% set count = pair[1] %}
+			<a class="list-group-item list-group-item-action"
+					href="{{ url_for('metapackages.view', name=meta.name) }}">
+				<div class="row">
+					<div class="col-sm">
+						{{ meta.name }}
+					</div>
+
+					<div class="col-sm-1 text-center">
+						{{ count }}
+					</div>
+				</div>
+			</a>
 		{% else %}
 			<li><i>No meta packages found.</i></li>
 		{% endfor %}
-	</ul>
+	</div>
 {% endblock %}