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from django.contrib.gis.geos import Point
from rest_framework import pagination, serializers
from rest_framework_gis import serializers as gis_serializers
from rest_framework_gis.fields import GeometrySerializerMethodField
from .models import (
BoxedLocation,
GeometryModel,
LineStringModel,
Location,
MultiLineStringModel,
MultiPointModel,
MultiPolygonModel,
Nullable,
PointModel,
PolygonModel,
)
__all__ = [
'LocationGeoSerializer',
'PaginatedLocationGeoSerializer',
'LocationGeoFeatureSerializer',
'LocationGeoFeatureSlugSerializer',
'LocationGeoFeatureFalseIdSerializer',
'LocationGeoFeatureNoIdSerializer',
'LocatedFileGeoFeatureSerializer',
'BoxedLocationGeoFeatureSerializer',
'LocationGeoFeatureBboxSerializer',
'LocationGeoFeatureMethodSerializer',
'NoneGeoFeatureMethodSerializer',
'PointSerializer',
'ChildPointSerializer',
'ListChildPointSerializer',
'LineStringSerializer',
'PolygonSerializer',
'MultiPolygonSerializer',
'MultiLineStringSerializer',
'MultiPointSerializer',
'GeometrySerializerMethodFieldSerializer',
'GeometrySerializer',
'BoxedLocationGeoFeatureWithBBoxGeoFieldSerializer',
]
class LocationGeoSerializer(serializers.ModelSerializer):
"""location geo serializer"""
details = serializers.HyperlinkedIdentityField(view_name='api_location_details')
class Meta:
model = Location
fields = '__all__'
class PaginatedLocationGeoSerializer(pagination.PageNumberPagination):
page_size_query_param = 'limit'
page_size = 40
max_page_size = 10000
class LocationGeoFeatureSerializer(gis_serializers.GeoFeatureModelSerializer):
"""location geo serializer"""
details = serializers.HyperlinkedIdentityField(
view_name='api_geojson_location_details'
)
fancy_name = serializers.SerializerMethodField()
def get_fancy_name(self, obj):
return 'Kool %s' % obj.name
class Meta:
model = Location
geo_field = 'geometry'
fields = '__all__'
class LocationGeoFeatureSlugSerializer(LocationGeoFeatureSerializer):
"""use slug as id attribute"""
class Meta:
model = Location
geo_field = 'geometry'
id_field = 'slug'
fields = ('name', 'slug', 'timestamp')
class LocationGeoFeatureFalseIdSerializer(LocationGeoFeatureSerializer):
"""id attribute set as False"""
class Meta:
model = Location
geo_field = 'geometry'
id_field = False
fields = '__all__'
class LocationGeoFeatureNoIdSerializer(LocationGeoFeatureSerializer):
"""
id attribute left out, issue #82
see: https://github.com/openwisp/django-rest-framework-gis/issues/82
"""
class Meta:
model = Location
geo_field = 'geometry'
fields = ('name',)
class LocationGeoFeatureWritableIdSerializer(LocationGeoFeatureSerializer):
"""default id attribute"""
class Meta:
model = Location
geo_field = 'geometry'
fields = ('id', 'name', 'timestamp')
id = serializers.CharField()
class LocatedFileGeoFeatureSerializer(gis_serializers.GeoFeatureModelSerializer):
"""located file geo serializer"""
details = serializers.HyperlinkedIdentityField(
view_name='api_geojson_located_file_details'
)
fancy_name = serializers.SerializerMethodField()
file = serializers.FileField(allow_empty_file=True)
def get_fancy_name(self, obj):
return 'Nice %s' % obj.name
class Meta:
model = Location
geo_field = 'geometry'
exclude = []
class BoxedLocationGeoFeatureSerializer(gis_serializers.GeoFeatureModelSerializer):
"""location geo serializer"""
details = serializers.HyperlinkedIdentityField(
view_name='api_geojson_boxedlocation_details'
)
class Meta:
model = BoxedLocation
geo_field = 'geometry'
bbox_geo_field = 'bbox_geometry'
fields = ['name', 'details', 'id', 'timestamp']
class LocationGeoFeatureBboxSerializer(gis_serializers.GeoFeatureModelSerializer):
class Meta:
model = Location
geo_field = 'geometry'
auto_bbox = True
exclude = []
class LocationGeoFeatureMethodSerializer(gis_serializers.GeoFeatureModelSerializer):
new_geometry = gis_serializers.GeometrySerializerMethodField()
def get_new_geometry(self, obj):
if obj.name.startswith('hidden'):
return Point(0.0, 0.0)
else:
return obj.geometry
class Meta:
model = Location
geo_field = 'new_geometry'
exclude = []
class NoneGeoFeatureMethodSerializer(gis_serializers.GeoFeatureModelSerializer):
new_geometry = gis_serializers.GeometrySerializerMethodField()
def get_new_geometry(self, obj):
return None
class Meta:
model = Location
geo_field = 'new_geometry'
fields = ['name', 'slug', 'id']
class NoGeoFeatureMethodSerializer(gis_serializers.GeoFeatureModelSerializer):
class Meta:
model = Nullable
geo_field = None
fields = ['name', 'slug', 'id']
class PointSerializer(gis_serializers.GeoFeatureModelSerializer):
class Meta:
model = PointModel
geo_field = 'location'
fields = '__all__'
class ChildPointSerializer(serializers.Serializer):
point = PointSerializer()
class ListChildPointSerializer(serializers.Serializer):
points = PointSerializer(many=True)
class LineStringSerializer(gis_serializers.GeoFeatureModelSerializer):
class Meta:
model = LineStringModel
geo_field = 'points'
fields = '__all__'
class PolygonSerializer(gis_serializers.GeoFeatureModelSerializer):
class Meta:
model = PolygonModel
geo_field = 'polygon'
fields = '__all__'
class PolygonModelSerializer(serializers.ModelSerializer):
class Meta:
model = PolygonModel
fields = '__all__'
class MultiPolygonSerializer(gis_serializers.GeoFeatureModelSerializer):
class Meta:
model = MultiPolygonModel
geo_field = 'polygon'
fields = '__all__'
class MultiLineStringSerializer(gis_serializers.GeoFeatureModelSerializer):
class Meta:
model = MultiLineStringModel
geo_field = 'points'
fields = '__all__'
class MultiPointSerializer(gis_serializers.GeoFeatureModelSerializer):
class Meta:
model = MultiPointModel
geo_field = 'points'
fields = '__all__'
auto_bbox = True
class GeometrySerializer(gis_serializers.GeoFeatureModelSerializer):
class Meta:
model = GeometryModel
geo_field = 'points'
fields = '__all__'
auto_bbox = True
class GeometrySerializerMethodFieldSerializer(PointSerializer):
other_point = GeometrySerializerMethodField()
@staticmethod
def get_other_point(obj):
return Point(obj.location.lat / 2, obj.location.lon / 2)
class Meta:
model = Location
geo_field = 'other_point'
fields = '__all__'
class BoxedLocationGeoFeatureWithBBoxGeoFieldSerializer(
BoxedLocationGeoFeatureSerializer
):
class Meta(BoxedLocationGeoFeatureSerializer.Meta):
fields = BoxedLocationGeoFeatureSerializer.Meta.fields + [
BoxedLocationGeoFeatureSerializer.Meta.bbox_geo_field
]
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