@ptc-org/nestjs-query-graphql
Version:
Nestjs graphql query adapter
55 lines • 2.73 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ReferencesRelationsResolver = exports.ReferencesRelationMixin = void 0;
const tslib_1 = require("tslib");
const graphql_1 = require("@nestjs/graphql");
const common_1 = require("../../common");
const decorators_1 = require("../../decorators");
const resolver_interface_1 = require("../resolver.interface");
const helpers_1 = require("./helpers");
const pluckFields = (dto, fieldMap) => {
const partial = {};
Object.keys(fieldMap).forEach((relationField) => {
const dtoField = fieldMap[relationField];
partial[relationField] = dto[dtoField];
});
return partial;
};
const allFieldsAreNull = (fields) => {
return Object.values(fields).reduce((previousNull, value) => previousNull && (value === null || value === undefined), true);
};
const ReferencesMixin = (DTOClass, reference) => (Base) => {
var _a;
const commonResolverOpts = (0, helpers_1.removeRelationOpts)(reference);
const relationDTO = reference.DTO;
const { baseNameLower, baseName } = (0, common_1.getDTONames)(relationDTO, { dtoName: reference.dtoName });
let ReadOneMixin = class ReadOneMixin extends Base {
[_a = `${baseNameLower}Reference`](dto) {
const fields = pluckFields(dto, reference.keys);
if (allFieldsAreNull(fields)) {
return null;
}
// eslint-disable-next-line @typescript-eslint/naming-convention
return { __typename: baseName, ...fields };
}
};
tslib_1.__decorate([
(0, decorators_1.ResolverField)(baseNameLower, () => relationDTO, { nullable: reference.nullable, complexity: reference.complexity }, commonResolverOpts),
tslib_1.__param(0, (0, graphql_1.Parent)()),
tslib_1.__metadata("design:type", Function),
tslib_1.__metadata("design:paramtypes", [Object]),
tslib_1.__metadata("design:returntype", Object)
], ReadOneMixin.prototype, _a, null);
ReadOneMixin = tslib_1.__decorate([
(0, graphql_1.Resolver)(() => DTOClass, { isAbstract: true })
], ReadOneMixin);
return ReadOneMixin;
};
const ReferencesRelationMixin = (DTOClass, references) => (Base) => {
const flattened = (0, helpers_1.flattenRelations)(references);
return flattened.reduce((RB, a) => ReferencesMixin(DTOClass, a)(RB), Base);
};
exports.ReferencesRelationMixin = ReferencesRelationMixin;
const ReferencesRelationsResolver = (DTOClass, references) => (0, exports.ReferencesRelationMixin)(DTOClass, references)(resolver_interface_1.BaseServiceResolver);
exports.ReferencesRelationsResolver = ReferencesRelationsResolver;
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