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bgneal@820
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1 """Views for the bandmap application.
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bgneal@820
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2
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bgneal@820
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3 """
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bgneal@827
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4 import json
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bgneal@827
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5
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bgneal@820
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6 from django.contrib.auth.decorators import login_required
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bgneal@820
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7 from django.shortcuts import redirect, render
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bgneal@821
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8 from django.contrib import messages as django_messages
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bgneal@827
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9 from django.http import HttpResponse
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bgneal@827
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10 from django.template.loader import render_to_string
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bgneal@827
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11 from django.core.cache import cache
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bgneal@820
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12
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bgneal@820
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13 from bandmap.forms import BandForm
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bgneal@827
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14 from bandmap.models import BandEntry
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bgneal@820
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15
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bgneal@820
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16
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bgneal@821
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17 SUCCESS = "Successfully submitted {} for admin review. Thanks!"
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bgneal@821
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18
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bgneal@821
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19
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bgneal@820
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20 def map_view(request):
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bgneal@820
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21 return render(request, 'bandmap/map.html')
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bgneal@820
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22
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bgneal@820
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23
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bgneal@820
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24 @login_required
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bgneal@820
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25 def add_band(request):
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bgneal@820
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26 """
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bgneal@820
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27 Provides the ability for a user to submit a new band to the map.
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bgneal@820
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28
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bgneal@820
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29 """
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bgneal@820
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30 if request.method == 'POST':
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bgneal@820
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31 form = BandForm(request.POST)
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bgneal@820
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32 if form.is_valid():
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bgneal@820
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33 band = form.save(commit=False)
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bgneal@820
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34 band.user = request.user
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bgneal@820
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35 band.save()
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bgneal@821
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36 django_messages.success(request, SUCCESS.format(band.name))
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bgneal@825
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37 return redirect('bandmap-add')
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bgneal@820
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38 else:
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bgneal@820
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39 form = BandForm()
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bgneal@820
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40
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bgneal@820
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41 return render(request, 'bandmap/add.html', {
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bgneal@820
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42 'form': form,
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bgneal@820
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43 })
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bgneal@827
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44
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bgneal@827
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45
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bgneal@827
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46 def query(request):
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bgneal@827
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47 """Retrieves the band map entries and returns them as JSON.
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bgneal@827
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48
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bgneal@827
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49 """
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bgneal@827
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50 show_param = request.GET.get('show', 'all')
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bgneal@827
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51 if show_param not in ['all', 'active', 'inactive']:
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bgneal@827
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52 show_param = 'all'
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bgneal@827
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53
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bgneal@827
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54 # Do we have the results cached already?
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bgneal@827
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55 cache_key = 'bandmap-results-{}'.format(show_param)
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bgneal@827
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56 results = cache.get(cache_key)
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bgneal@827
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57 if results:
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bgneal@827
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58 return HttpResponse(results, content_type='application/json')
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bgneal@827
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59
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bgneal@827
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60 # Generate results
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bgneal@827
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61 qs = BandEntry.objects.filter(is_approved=True)
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bgneal@827
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62 if show_param == 'active':
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bgneal@827
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63 qs = qs.filter(is_active=True)
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bgneal@827
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64 elif show_param == 'inactive':
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bgneal@827
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65 qs = qs.filter(is_active=False)
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bgneal@827
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66
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bgneal@827
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67 bands = []
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bgneal@827
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68 for band in qs.iterator():
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bgneal@827
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69 bands.append({
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bgneal@827
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70 'name': band.name,
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bgneal@827
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71 'url': band.url,
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bgneal@827
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72 'lat': band.lat,
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bgneal@827
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73 'lon': band.lon,
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bgneal@827
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74 'note': render_to_string('bandmap/balloon.html', {'band': band}),
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bgneal@827
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75 })
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bgneal@827
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76 results = json.dumps(bands)
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bgneal@827
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77
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bgneal@827
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78 # Store in cache
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bgneal@827
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79 cache.set(cache_key, results, 300)
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bgneal@827
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80
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bgneal@827
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81 return HttpResponse(results, content_type='application/json')
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