@graphile/postgis
Version:
PostGIS support for PostGraphile
47 lines • 1.99 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const constants_1 = require("./constants");
const utils_1 = require("./utils");
const plugin = builder => {
builder.hook("GraphQLObjectType:fields", (fields, build, context) => {
const { scope: { isPgGISType, pgGISType, pgGISTypeDetails }, } = context;
if (!isPgGISType ||
!pgGISTypeDetails ||
pgGISTypeDetails.subtype !== constants_1.GIS_SUBTYPE.Polygon) {
return fields;
}
const { extend, getPostgisTypeByGeometryType, graphql: { GraphQLList }, } = build;
const { hasZ, hasM, srid } = pgGISTypeDetails;
const LineString = getPostgisTypeByGeometryType(pgGISType, constants_1.GIS_SUBTYPE.LineString, hasZ, hasM, srid);
return extend(fields, {
exterior: {
type: LineString,
resolve(data) {
return {
__gisType: utils_1.getGISTypeName(constants_1.GIS_SUBTYPE.LineString, hasZ, hasM),
__srid: data.__srid,
__geojson: {
type: "LineString",
coordinates: data.__geojson.coordinates[0],
},
};
},
},
interiors: {
type: new GraphQLList(LineString),
resolve(data) {
return data.__geojson.coordinates.slice(1).map((coord) => ({
__gisType: utils_1.getGISTypeName(constants_1.GIS_SUBTYPE.LineString, hasZ, hasM),
__srid: data.__srid,
__geojson: {
type: "LineString",
coordinates: coord,
},
}));
},
},
});
});
};
exports.default = plugin;
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