def csv2areas(csv_file='areas.csv', \
create_kinds=True, \
skip_first=False, \
prefix=None):
''' Creates Area objects from a CSV file.
FORMAT:
NAME | TYPE_SLUG | PARENT_ID '''
from simple_locations.models import Area, AreaType
try:
fhandler = open(csv_file)
except IOError:
print "Unable to open file %s" % csv_file
return None
for line in fhandler:
# skip header line?
if skip_first:
skip_first = False
continue
# retrieve raw data
data = line.strip().split(',')
name = data[0]
type_slug = data[1]
parent_id = data[2] or None
parent = None
try:
name = name.decode('utf-8')
except:
pass
# find or create AreaType
try:
kind = AreaType.objects.get(slug=type_slug)
except AreaType.DoesNotExist:
if create_kinds:
kind = AreaType(slug=type_slug, name=type_slug.title())
kind.save()
else:
raise
# find parent
if parent_id:
parent = Area.objects.get(id=int(parent_id))
print u"N: %(name)s - T: %(type)s - TS: %(type_slug)s - " \
"P: %(parent)s - PID: %(parent_id)s" % \
{'name': name, 'type': kind, 'type_slug': type_slug, \
'parent': parent, 'parent_id': parent_id}
area = Area(name=name, kind=kind, parent=parent)
area.save()
def add_location(req, parent_id=None):
nodes = Area.tree.all()
if req.method == "POST":
form = LocationForm(req.POST)
if form.is_valid():
name = form.cleaned_data["name"]
code = form.cleaned_data["code"]
lat = form.cleaned_data["lat"]
lon = form.cleaned_data["lon"]
target = form.cleaned_data["target"]
position = form.cleaned_data["position"]
kind = form.cleaned_data["kind"]
area = Area(name=name, code=code)
if lat and lon:
location = Point(latitude=lat, longitude=lon)
location.save()
area.location = location
try:
kind = get_object_or_404(AreaType, pk=int(kind))
area.kind = kind
except ValueError:
pass
area.save()
if form.cleaned_data["move_choice"]:
try:
Area.tree.move_node(area, target, position)
except InvalidMove:
pass
form = LocationForm()
return render_to_response(
"simple_locations/location_edit.html",
{"form": form, "nodes": nodes},
context_instance=RequestContext(req),
)
else:
form = LocationForm(req.POST)
return render_to_response(
"simple_locations/location_edit.html",
{"form": form, "nodes": nodes},
context_instance=RequestContext(req),
)
else:
if parent_id:
default_data = {}
parent = get_object_or_404(Area, pk=parent_id)
default_data["move_choice"] = True
default_data["target"] = parent.pk
default_data["position"] = "last-child"
form = LocationForm(default_data)
form._errors = ""
else:
form = LocationForm()
return render_to_response(
"simple_locations/location_edit.html", {"form": form, "nodes": nodes}, context_instance=RequestContext(req)
)