environment_sensors/sensors/collector/views.py

from datetime import datetime, timedelta
from django.shortcuts import render
from . import plot

def index_view(request):
    start_time = datetime.now() - timedelta(hours=24)
    plot_temp = plot.temperature(start_time)
    plot_humidity = plot.humidity(start_time)
    plot_pressure = plot.pressure(start_time)
    return render(request, "collector/index.html",
                  context={'plot_temp': plot_temp,
                           'plot_humidity': plot_humidity,
                           'plot_pressure': plot_pressure})


def history_view(request, hours):
    start_time = datetime.now() - timedelta(hours=hours)
    plot_temp = plot.temperature(start_time)
    plot_humidity = plot.humidity(start_time)
    plot_pressure = plot.pressure(start_time)
    return render(request, "collector/index.html",
                  context={'plot_temp': plot_temp,
                           'plot_humidity': plot_humidity,
                           'plot_pressure': plot_pressure})
fix the plots The date was validated when the application startet not everytime the view was called. This commit moves the date calculation to the view. 2019-10-23 10:28:03 +02:00			`from datetime import datetime, timedelta`
move to django I thought it might be a good idea to use Flask and Peewee for this little project. However the overhead to learn this frameworks is bigger than I thought. I therefore switch to django which is a framework I already know. 2019-10-13 20:35:48 +02:00			`from django.shortcuts import render`
create a view to display the charts 2019-10-20 21:39:03 +02:00			`from . import plot`
move to django I thought it might be a good idea to use Flask and Peewee for this little project. However the overhead to learn this frameworks is bigger than I thought. I therefore switch to django which is a framework I already know. 2019-10-13 20:35:48 +02:00
create a view to display the charts 2019-10-20 21:39:03 +02:00			`def index_view(request):`
fix the plots The date was validated when the application startet not everytime the view was called. This commit moves the date calculation to the view. 2019-10-23 10:28:03 +02:00			`start_time = datetime.now() - timedelta(hours=24)`
			`plot_temp = plot.temperature(start_time)`
			`plot_humidity = plot.humidity(start_time)`
			`plot_pressure = plot.pressure(start_time)`
create a view to display the charts 2019-10-20 21:39:03 +02:00			`return render(request, "collector/index.html",`
			`context={'plot_temp': plot_temp,`
			`'plot_humidity': plot_humidity,`
			`'plot_pressure': plot_pressure})`
add a view which accepts hours as arguments This views allows to select various timeranges which the site then can display. 2019-10-24 22:35:12 +02:00

			`def history_view(request, hours):`
			`start_time = datetime.now() - timedelta(hours=hours)`
			`plot_temp = plot.temperature(start_time)`
			`plot_humidity = plot.humidity(start_time)`
			`plot_pressure = plot.pressure(start_time)`
			`return render(request, "collector/index.html",`
			`context={'plot_temp': plot_temp,`
			`'plot_humidity': plot_humidity,`
			`'plot_pressure': plot_pressure})`