Adding code to draw graphs

sensor.py
    starting pygal graph draws
    not working

templates/
    removed references to login.html
    added place for graph to go

1 files changed, 9 insertions, 1 deletions

diff --git a/sensor.py b/sensor.py
index a0123d0..8d1e000 100644
--- a/sensor.py
+++ b/sensor.py
@@ -3,6 +3,7 @@ import sqlite3
 from flask import Flask, request, session, g, redirect, url_for, abort, render_template, flash
 from contextlib import closing
 from datetime import datetime
+import pygal
 
 # configuration
 DATABASE = '/tmp/sensors.db'
@@ -42,7 +43,14 @@ def teardown_request(exception):
 def show_entries():
     cur = g.db.execute('SELECT date, temperature, humidity, pressure FROM weather ORDER BY id desc')
     entries = [dict(date=row[0], temperature=row[1], humidity=row[2], pressure=row[3]) for row in cur.fetchall()]
-    return render_template('show_entries.html', weather=entries)
+
+    datetimeline = pygal.DateTimeLine(
+            x_label_rotation=30, truncate_label=-1,
+            x_value_formatter=lambda dt: dt.strftime('%d, %b %Y %I:%M %p')
+            )
+    datetimeline.add("Temp F", [(row[0], row[1]) for row in cur.fetchall()])
+
+    return render_template('show_entries.html', wgraph=datetimeline, weather=entries)
 
 # adding entries to database
 @app.route('/data', methods=['POST'])