def createGraph(self):
db = DBConnector()
temperatureData = db.getTemperatureGraphData()
x = [] # times
y = [] # temps
for i in range(len(temperatureData) - 1, -1, -1):
x.append(temperatureData[i][0].strftime(
self.const.TEMPERATURE_GRAPH_DATE_FORMAT))
y.append(temperatureData[i][1])
figure(num=None,
figsize=(16, 9),
dpi=100,
facecolor='w',
edgecolor='k')
plt.plot(x, y)
plt.xlabel("Time")
plt.ylabel("Temperature")
plt.title('Temperature over time')
logging.info('Save historic data graph for temperature')
plt.savefig(self.const.TEMPERATURE_GRAPH_FILENAME)
