added a statistic for lectures per semester

stats.py

@@ -10,6 +10,7 @@ def stats():
 
 statsqueries = {}
 statsqueries['course_count'] = "SELECT count(id) as count, semester FROM courses GROUP BY semester;"
+statsqueries['lectures_count'] = "SELECT count(lectures.id) as count, semester FROM lectures JOIN courses on courses.id=lectures.course_id GROUP BY semester;"
 
 @app.route('/stats/data/<dataname>')
 @app.route('/stats/data/<dataname>/<parameter>')

templates/stats.html

@@ -13,7 +13,8 @@
 			<h1 class="panel-title">Statistiken</h1>
 		</div>
 		<div class="panel-body">
-			<div id="tester" style="width:600px;height:600px;"></div>
+			<div class="row col-xs-12">
+				<div id="coursespersemester" style="height:600px;" class="col-xs-6" ></div>
 				<script>
 					$.ajax({
 						method: "GET",
@@ -21,24 +22,46 @@
 						dataType: "json",
 						error: moderator.api.handleapierror,
 						success: function (data) {
-						var semester = [];
-						var y = [];
+							var trace = {"y": [], "x": [], "type": "scatter"};
 							for (var i=0; i < data.length; i++) {
 								if (data[i].semester != "") {
-								semester.push(data[i].semester);
-								y.push(data[i].count);
+									trace.x.push(data[i].semester)
+									trace.y.push(data[i].count)
 								}
 							}
-						var trace = {"y": y, "x": semester, "type": "scatter"};
 							var layout = {
 								"title": 'Veranstaltungen pro Semester',
 								"showlegend": false
 							};
-						Plotly.newPlot('tester', [trace], layout, { "showLink": false, "modeBarButtonsToRemove": ['sendDataToCloud','hoverCompareCartesian'], "displaylogo": false});
+							Plotly.newPlot('coursespersemester', [trace], layout, { "modeBarButtonsToRemove": ['sendDataToCloud','hoverCompareCartesian'], "displaylogo": false});
+						}
+					});
+				</script>
+				<div id="lecturespersemester" style="height:600px" class="col-xs-6"></div>
+				<script>
+					$.ajax({
+						method: "GET",
+						url: "/stats/data/lectures_count",
+						dataType: "json",
+						error: moderator.api.handleapierror,
+						success: function (data) {
+							var trace = {"y": [], "x": [], "type": "scatter"};
+							for (var i=0; i < data.length; i++) {
+								if (data[i].semester != "") {
+									trace.x.push(data[i].semester)
+									trace.y.push(data[i].count)
+								}
+							}
+							var layout = {
+								"title": 'Aufnahmen pro Semester',
+								"showlegend": false
+							};
+							Plotly.newPlot('lecturespersemester', [trace], layout, { "modeBarButtonsToRemove": ['sendDataToCloud','hoverCompareCartesian'], "displaylogo": false});
 						}
 					});
 				</script>
 			</div>
+	i	</div>
 	</div>
 </div>
 {% endblock %}