def apply_maps_to_modelform_fields(fields, maps, default_options=None,
default_template=None, default_field_class=None):
"""
Rearranges fields to match those defined in ``maps``. ``maps`` is a list
of [field_list, options_dict] pairs. For each pair, a new map field is
created that contans all the fields in ``field_list``.
"""
if default_field_class is None:
default_field_class = MapField
map_field_names = (name for name,field in fields.iteritems() if isinstance(field, (MapField, GeometryField)))
if not maps:
maps = [((name,),) for name in map_field_names]
elif isinstance(maps, dict):
maps = [[tuple(map_field_names), maps]]
default_options = utils.get_options(default_options)
initial_data_keymap = {}
for map_definition in maps:
field_list = map_definition[0]
if len(map_definition) > 1:
options = map_definition[1]
else:
options = {}
if len(map_definition) > 2:
template = map_definition[2]
else:
template = default_template
map_name = "_".join(field_list)
layer_fields = []
names = []
min_pos = 65535 # arbitrarily high number for field ordering
initial = []
for field_name in field_list:
min_pos = min(min_pos, fields.keyOrder.index(field_name))
field = fields.pop(field_name)
initial.append(field_name)
if not isinstance(field.widget, (Map, BaseVectorLayer)):
field.widget = EditableLayer(
options=utils.options_for_field(field))
layer_fields.append(field)
names.append(field_name)
if isinstance(field, MapField):
map_field = field
else:
map_opts = {}
map_opts.update(default_options)
map_opts.update(options or {})
map_field = default_field_class(layer_fields, map_opts, layer_names=names,
label=", ".join(forms.forms.pretty_name(f) for f in field_list),
template=template)
fields.insert(min_pos, map_name, map_field)
initial_data_keymap[map_name] = initial
return initial_data_keymap
def index(request):
return render_to_response("testolwidget/index.html", {
'map':
Map(
[
EditableLayer({
'geometry': ['point', 'linestring', 'polygon'],
'is_collection': True,
}),
], {
'default_lat': 42.360836996182,
'default_lon': -71.087611985694,
'default_zoom': 10,
'layers': ['osm.mapnik', 'google.physical'],
}),
},
context_instance=RequestContext(request))
def __init__(self, options=None, **kwargs):
kwargs['widget'] = kwargs.get('widget', EditableLayer(options))
super(EditableLayerField, self).__init__(**kwargs)