def get_map_widget(self, db_field):
widget = super(GeoPortalAdmin, self).get_map_widget(db_field)
widget.params['map_info'] = self.map_info
widget.params['layers'] = utils.get_layers(self.layers)
widget.params['api_key'] = settings.GEOPORTAL_API_KEY
widget.params['feature_color'] = utils.DEFAULT_COLOR
widget.params['feature_opacity'] = utils.DEFAULT_OPACITY
return widget
def __init__(self, *args, **kwargs):
super(BaseWidget, self).__init__(*args, **kwargs)
attrs = kwargs.pop('attrs', {})
self.options = {
'width': attrs.pop('width', utils.DEFAULT_WIDTH),
'height': attrs.pop('height', utils.DEFAULT_HEIGHT),
'color': attrs.pop('color', utils.DEFAULT_COLOR),
'opacity': attrs.pop('opacity', utils.DEFAULT_OPACITY),
'default_zoom': attrs.pop('default_zoom', utils.DEFAULT_ZOOM),
'default_lon': attrs.pop('default_lon', utils.DEFAULT_LON),
'default_lat': attrs.pop('default_lat', utils.DEFAULT_LAT),
'layers': utils.get_layers(attrs.pop('layers', (('maps', 1),))),
'srid': attrs.pop('srid', 4326),
}
def render(self, context):
self.parse_options(self.args_)
# Generate a probably unique name for javascript variables -- in case
# there are several maps on a page
map_var = ''.join(random.sample('abcdefghijklmopqrstuvwxyz', 5))
map_var = 'map_' + map_var
# Field type
geo_field = self.geo_field.resolve(context)
ftype = geo_field.geom_type.upper()
is_collection = ftype in ('MULTIPOINT', 'MULTILINESTRING',
'MULTIPOLYGON', 'GEOMETRYCOLLECTION')
if is_collection:
if ftype == 'GEOMETRYCOLLECTION':
collection_type = 'Any'
else:
collection_type = OGRGeomType(ftype.replace('MULTI', ''))
else:
collection_type = 'None'
for (key, value) in self.options.items():
self.options[key] = value.resolve(context)
# Default options
if not 'width' in self.options:
self.options['width'] = getattr(settings,
'GEOPORTAL_DEFAULT_WIDTH',
utils.DEFAULT_WIDTH)
if not 'height' in self.options:
self.options['height'] = getattr(settings,
'GEOPORTAL_DEFAULT_HEIGHT',
utils.DEFAULT_HEIGHT)
if not 'color' in self.options:
self.options['color'] = getattr(settings,
'GEOPORTAL_DEFAULT_COLOR',
utils.DEFAULT_COLOR)
if not 'opacity' in self.options:
self.options['opacity'] = getattr(settings,
'GEOPORTAL_DEFAULT_OPACITY',
utils.DEFAULT_OPACITY)
self.options['opacity'] = str(self.options['opacity'])
self.check_booleans()
isolated_context = template.Context({
'options': self.options,
'api_key': settings.GEOPORTAL_API_KEY,
'map_var': map_var,
'is_point': ftype in ('POINT', 'MULTIPOINT'),
'is_linestring': ftype in ('LINESTRING', 'MULTILINESTRING'),
'is_polygon': ftype in ('POLYGON', 'MULTIPOLYGON'),
'is_collection': is_collection,
'collection_type': collection_type,
'layers': utils.get_layers((('maps', 1),)),
'default_lon': getattr(settings, 'GEOPORTAL_DEFAULT_LON',
utils.DEFAULT_LON),
'default_lat': getattr(settings, 'GEOPORTAL_DEFAULT_LAT',
utils.DEFAULT_LAT),
'default_zoom': getattr(settings, 'GEOPORTAL_DEFAULT_ZOOM',
utils.DEFAULT_ZOOM),
'point_zoom': getattr(settings, 'GEOPORTAL_POINT_ZOOM',
utils.POINT_ZOOM),
'srid': 4326,
'field_name': ftype.capitalize(),
'wkt': geo_field.wkt,
'wms_url': utils.WMS_URL,
})
loaded = template.loader.get_template('geoportal/map.html')
rendered = loaded.render(isolated_context)
if self.var_name is not None:
context[self.var_name] = map_var
return rendered
