def get_investor_filter(self, investors):
"""
Get investor filter
:param investors:
:return:
"""
return Filter(variable='_id', operator='in', value=investors)
def set_country_region_filter(self, data):
filter_values = {}
# Country or region filter set?
if data.get('country', None) or data.get('region', None):
stored_filters = self.request.session.get('filters', {})
if not stored_filters:
stored_filters = {}
if data.get('country', None):
filter_values['variable'] = 'target_country'
filter_values['operator'] = 'is'
filter_values['value'] = data.get('country')
try:
country = Country.objects.defer('geom').get(
pk=data.get('country'))
filter_values['display_value'] = country.name
except:
pass
filter_values['name'] = 'country'
filter_values['label'] = _('Target country')
data.pop('country')
elif data.get('region', None):
filter_values['variable'] = 'target_region'
filter_values['operator'] = 'is'
filter_values['value'] = data.get('region')
try:
region = Region.objects.get(pk=data.get('region'))
filter_values['display_value'] = region.name
except:
pass
filter_values['name'] = 'region'
filter_values['label'] = str(_('Target region'))
data.pop('region')
# Remove existing target country/region filters
filters = filter(lambda f: f.get('name') in ('country', 'region'),
stored_filters.values())
for stored_filter in list(filters):
stored_filters.pop(stored_filter['name'], None)
if filter_values:
# Set filter
new_filter = Filter(variable=filter_values['variable'],
operator=filter_values['operator'],
value=filter_values['value'],
name=filter_values.get('name', None),
label=filter_values['label'],
display_value=filter_values.get(
'display_value', None))
stored_filters[new_filter.name] = new_filter
self.request.session['filters'] = stored_filters
else:
self.remove_country_region_filter()
def load_filters_from_url(self, exclude=[]):
'''
Read any querystring param filters. Preset filters not allowed.
'''
if self.request:
variables = self.request.GET.getlist('variable')
operators = self.request.GET.getlist('operator')
values = self.request.GET.getlist('value')
else:
variables = []
operators = []
values = []
combined = zip(variables, operators, values)
filters = {
f[0]: Filter(f[0], f[1], f[2])
for f in combined if f[0] not in exclude
}
return filters
def get_investor_filter(self, investors):
return Filter(variable='operational_stakeholder',
operator='in',
value=investors)
def post(self, request, *args, **kwargs):
"""
Set or remove filters to/from current session cookie.
Used within the filter section of map, data and chart views.
"""
# TODO: make this a PATCH, and more RESTful.
# TODO: use a serializer for param parsing
stored_filters = self.get_object()
# TODO: This works, but it's not very standard DRF.
# Maybe convert to using the POST body for args in future?
request_data = request.query_params.copy()
request_data.update(request.data)
action = request_data.get('action', 'nothing').lower()
name = request_data.get('name', None)
if not name:
name = 'filter_%i' % (len(request.session.get('filters', [])) + 1)
if action == 'set':
if 'preset' in request_data:
# Check for duplicates
for filter_name, stored_filter in stored_filters.items():
if stored_filter.get('preset_id',
'') == request_data['preset']:
return Response(stored_filters)
new_filter = PresetFilter(request_data['preset'], name=name)
else:
try:
variable = request_data['variable']
operator = request_data['operator']
value = request_data['value']
display_value = request_data.get('display_value', None)
except KeyError as err:
raise serializers.ValidationError(
{err.args[0]: _("This field is required.")})
# Check for duplicates
for filter_name, stored_filter in stored_filters.items():
if (stored_filter.get('variable', '') == variable
and stored_filter.get('operator', '') == operator
and stored_filter.get('value', '') == value):
return Response(stored_filters)
label = get_field_label(variable)
new_filter = Filter(variable=variable,
operator=operator,
value=value,
label=label,
name=name,
display_value=display_value)
stored_filters[new_filter.name] = new_filter
elif action == 'remove':
try:
del stored_filters[name]
# Default filter?
if 'default_preset' in name:
# Convert default filters to custom filters
stored_filters = dict((k.replace('default_', ''), v)
for k, v in stored_filters.items())
# Disable default filters
request.session['set_default_filters'] = False
except KeyError:
pass
elif action == 'set_default_filters':
request.session[
'set_default_filters'] = 'set_default_filters' in request_data
request.session['filters'] = stored_filters
return Response(stored_filters)
def to_filter(self):
return Filter(self.variable,
self.operator,
self.parsed_value,
str(self),
key=self.key)