--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gpp/membermap/views.py	Mon Apr 06 02:43:12 2009 +0000
@@ -0,0 +1,108 @@
+"""
+Views for the membermap application.
+"""
+from django.shortcuts import render_to_response
+from django.template import RequestContext
+from django.http import HttpResponse
+from django.http import HttpResponseBadRequest
+from django.http import HttpResponseForbidden
+from django.views.decorators.http import require_POST
+
+from membermap.models import MapEntry
+from membermap.forms import MapEntryForm
+
+
+def index(request):
+    entry = None
+    if request.user.is_authenticated():
+        try:
+            entry = MapEntry.objects.get(user=request.user)
+        except MapEntry.DoesNotExist:
+            pass
+    if entry is not None:
+        form = MapEntryForm(initial={
+            'location': entry.location,
+            'message': entry.message})
+    else:
+        form = MapEntryForm()
+
+    return render_to_response('membermap/index.html', {
+        'form': form,
+        },
+        context_instance = RequestContext(request))
+
+
+def query(request):
+    """
+    This view is called by AJAX. If the user is logged in, return
+    a JSON object that consists of:
+        "users" : array of user objects
+        "recent" : array of usernames recently modified
+    """
+    if request.user.is_authenticated():
+        qs = MapEntry.objects.values_list('json', flat=True).order_by('user__username')
+        s = '{"users":[' + ','.join(qs) + '], "recent":['
+
+        names = MapEntry.objects.values_list('user__username', flat=True)[:10]
+        s += ','.join(['"%s"' % name for name in names])
+        s += ']}'
+        return HttpResponse(s, content_type='application/json')
+
+    return HttpResponseForbidden('You must be logged in.')
+
+
+@require_POST
+def add(request):
+    """
+    This view is called by AJAX to add/update the user to the map.
+    It returns the new JSON representation of the user.
+    """
+    if not request.user.is_authenticated():
+        return HttpResponseForbidden('You must be logged in.')
+
+    loc = request.POST.get('loc', None)
+    lat = request.POST.get('lat', None)
+    lon = request.POST.get('lon', None)
+    msg = request.POST.get('msg', '')
+
+    if loc is None or lat is None or lon is None:
+        return HttpResponseBadRequest('Missing parameters')
+
+    try:
+        lat = float(lat)
+        lon = float(lon)
+    except ValueError:
+        return HttpResponseBadRequest('Invalid lat/lon')
+
+    try:
+        entry = MapEntry.objects.get(user=request.user)
+    except MapEntry.DoesNotExist:
+        entry = MapEntry(user=request.user)
+
+    entry.location = loc
+    entry.lat = lat
+    entry.lon = lon
+    entry.message = msg
+    entry.save()
+
+    return HttpResponse(entry.json, content_type='application/json')
+
+
+@require_POST
+def delete(request):
+    """
+    This view is called by AJAX to delete the user from the map.
+    """
+    if not request.user.is_authenticated():
+        return HttpResponseForbidden('You must be logged in.')
+
+    try:
+        entry = MapEntry.objects.get(user=request.user)
+    except MapEntry.DoesNotExist:
+        pass
+    else:
+        entry.delete()
+
+    return HttpResponse('')
+
+# vim: ts=4 sw=4