I'm controlling the GPIO pins on a raspberryPi that is running a Django web
app. I have a form with only one button that is "On" or "off", it writes
this to a database. The Button's value has to display the current status
"On" or"off".
So I need to be able to update the value of the button in the form, without
reloading the entire page.
I have jquery, so I'm trying to figure out how to use it in conjunction
with the Django View to get this done. Here is my View.py and
control_page.html
I am a novice in Programming so don't be afraid to dumb it down....
@login_required
def control_page(request):
if request.method == 'POST':
pin1 = Pin.objects.get(pinID=1)
if 'pin1Status' in request.POST:
if pin1.pinStatus == 'hi':
pin1.pinStatus = 'low'
else:
pin1.pinStatus = 'hi'
pin1.save()
variables = RequestContext(request, {'pin1': pin1})
return render_to_response('control_page.html', variables)
else:
pin1 = Pin.objects.get(pinID=1)
variables = RequestContext(request, {'pin1': pin1})
return render_to_response('control_page.html', variables)
{% extends "base.html" %}
{% block external %}
<script type="text/javascript" src="/media/jquery.js"></script>
<script type="text/javascript" src="/media/jquery_ui.js"></script>
<script type="text/javascript" src="/media/gpio.js"></script>
{% endblock %}
{% block title %}Control Panel{% endblock %}
{% block head %}
{% endblock %}
{% block content %}
<div id="gpio_results">
<form id="gpio_form" method="post" action="." >
{% csrf_token %}
<p>{{ pin1.pinDescription}} {{ pin1.pinDirection}}
<input type="submit" name="pin{{ pin1.pinID }}Status" id="{{ pin1.pinID
}}" value="{{ pin1.pinStatus }}" />
</form>
</div>
<iframe src="http://192.168.137.96:8081"; scrolling="no" width="275"
height="220" frameboarder="0">
<p>iframes are not supported by your browser.<p>
</iframe>
{% endblock %}
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