Parsing Javascript values to Django views

Question

I am new to Django and I am just trying to figure it out and I did posted it in official Django google group but no answer. I am working with Google Map API in my Django template for GeoLocation and I intend to populate DB table dynamically after extracting information from JavaScript in my Django template. Following is the code:

var map, infoWindow;
  function initMap() {
    map = new google.maps.Map(document.getElementById('map'), {
      center: {lat: -34.397, lng: 150.644},
      zoom: 6
    });
    infoWindow = new google.maps.InfoWindow;

    // Try HTML5 geolocation.
    if (navigator.geolocation) {
      navigator.geolocation.getCurrentPosition(function(position) {
        var pos = {
          lat: position.coords.latitude,
          lng: position.coords.longitude
        };

        infoWindow.setPosition(pos);
        infoWindow.setContent('Location found.');
        infoWindow.open(map);
        map.setCenter(pos);
      }, function() {
        handleLocationError(true, infoWindow, map.getCenter());
      });
    } else {
      // Browser doesn't support Geolocation
      handleLocationError(false, infoWindow, map.getCenter());
    }
  }

  function handleLocationError(browserHasGeolocation, infoWindow, pos) {
    infoWindow.setPosition(pos);
    infoWindow.setContent(browserHasGeolocation ?
                          'Error: The Geolocation service failed.' :
                          'Error: Your browser doesn\'t support geolocation.');
    infoWindow.open(map);
  }

I need to save longitude and latitude with GeoLocation Info about the location in human readable format in my model. My Model is

class Address(models.Model):
   user = models.ForeignKey(settings.AUTH_USER_MODEL, models.CASCADE)
   latitude = models.CharField(max_length=10)
   longitude = models.CharField(max_length=10)
   address = models.CharField(max_length=100)
   .....

My form is:

class UserAddressForm(forms.ModelForm):
     class Meta:
            model = Address
            fields = ['latitude', 'longitude', 'address'}

I need to figure it out in my view how to do it. It will be great if someone can refer me to right direction because I am really having hard time to figure it out as newbie.

Sarath_Mj · Accepted Answer · 2018-02-13 05:39:40Z

1

i don't have enough reputation to comment that why i'm trying to answer what i understood from this, please don't mind

I faced the same issue when i was doing live Forex data streaming display. You can do one thing. What i did is reverse approach(i don't know exactly how to do this).

Write a python script using Google api to access to those details and collect it.
Store it in DB. then pass this data to template over Django-restframework
you will be able at access those data in js now.
You can make ajax call using set-interval function to make it refresh every interval. if you do this it will invoke your view function that every particular interval so it will be saved in db over model as well as displaying in template.

i hope it helps.

answered Feb 13, 2018 at 5:39

Sarath_Mj

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Sarath_Mj Over a year ago

i did not find any example, i tried my own and it worked. My goal was to scrape a data from truefx and dumb in db then displaying as table in template.

Sarath_Mj · Accepted Answer · 2018-02-14 05:19:04Z

def fx(request):
#template = loader.get_template('fx.html')
template = loader.get_template('fx.html')
fj = fxdata()
r0 = fj[0]
r1 = fj[1]
r2 = fj[2]
r3 = fj[3]
r4 = fj[4]
r5 = fj[5]
r6 = fj[6]


# context = {"Symbol": sym, "Time":time, "Ask":ask, "Bid":bid,"High":high,"low":low,"Close":close}
context = {"R0":r0, "R1":r1, "R2":r2, "R3":r3, "R4":r4, "R5":r5, "R6":r6}

for key, index in context.items():
    a=context[key]
    forex_instance = forex.objects.create(symbol=str(a[0]),datetime = str(a[1]), ask = float(a[2]), bid = float(a[3]), high = float(a[4]),low = float(a[5]), close=float(a[6]) )



html = template.render(context)
return HttpResponse(html)

In this view function fj = fxdata() return a scrape data and stored in db meanwhile i'm trying to display this data in my template so i used html = template.render(context) the context dictionary i passed to template over HttpResponse

Then I made a Ajax Call on the same template with setInterval using div id.

SO its started refreshing the templates. It call view function every time it refreshes. The data also keep storing in DB.

Then I used Django rest-framework to export this data into JS

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