@neo4j/graphql
Version:
A GraphQL to Cypher query execution layer for Neo4j and JavaScript GraphQL implementations
67 lines • 3.36 kB
JavaScript
;
/*
* Copyright (c) "Neo4j"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.withConnectionObjectType = withConnectionObjectType;
const graphql_1 = require("graphql");
const PageInfo_1 = require("../../graphql/objects/PageInfo");
const InterfaceEntityAdapter_1 = require("../../schema-model/entity/model-adapters/InterfaceEntityAdapter");
const UnionEntityAdapter_1 = require("../../schema-model/entity/model-adapters/UnionEntityAdapter");
const RelationshipAdapter_1 = require("../../schema-model/relationship/model-adapters/RelationshipAdapter");
function withConnectionObjectType({ relationshipAdapter, composer, }) {
const typeName = relationshipAdapter.operations.connectionFieldTypename;
if (composer.has(typeName)) {
return composer.getOTC(typeName);
}
const connectionObjectType = composer.getOrCreateOTC(typeName);
if (relationshipAdapter.isReadable()) {
connectionObjectType.addFields({
edges: withRelationshipObjectType({ relationshipAdapter, composer }).NonNull.List.NonNull,
totalCount: new graphql_1.GraphQLNonNull(graphql_1.GraphQLInt),
pageInfo: new graphql_1.GraphQLNonNull(PageInfo_1.PageInfo),
});
}
const isTargetUnion = relationshipAdapter.target instanceof UnionEntityAdapter_1.UnionEntityAdapter;
const isSourceInterface = relationshipAdapter.source instanceof InterfaceEntityAdapter_1.InterfaceEntityAdapter;
if (relationshipAdapter.aggregate && !isTargetUnion && !isSourceInterface) {
const connectionObjectType = composer.getOrCreateOTC(typeName);
connectionObjectType.addFields({
aggregate: composer.getOTC(relationshipAdapter.operations.getAggregateFieldTypename()).NonNull,
});
}
return connectionObjectType;
}
function withRelationshipObjectType({ relationshipAdapter, composer, }) {
const typeName = relationshipAdapter.operations.relationshipFieldTypename;
if (composer.has(typeName)) {
return composer.getOTC(typeName);
}
const relationshipObjectType = composer.createObjectTC({
name: typeName,
fields: { cursor: new graphql_1.GraphQLNonNull(graphql_1.GraphQLString), node: `${relationshipAdapter.target.name}!` },
});
// TODO: RelationshipDeclarationAdapter is handled by doForRelationshipDeclaration - improve
if (relationshipAdapter instanceof RelationshipAdapter_1.RelationshipAdapter && relationshipAdapter.hasAnyProperties) {
relationshipObjectType.addFields({
properties: composer.getOTC(relationshipAdapter.propertiesTypeName).NonNull,
});
}
return relationshipObjectType;
}
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