@neo4j/graphql
Version:
A GraphQL to Cypher query execution layer for Neo4j and JavaScript GraphQL implementations
56 lines • 2.4 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.getResolveTreeByFieldName = getResolveTreeByFieldName;
exports.getAliasedResolveTreeByFieldName = getAliasedResolveTreeByFieldName;
exports.generateResolveTree = generateResolveTree;
exports.generateMissingOrAliasedFields = generateMissingOrAliasedFields;
const utils_1 = require("../../utils/utils");
/** Finds a resolve tree of selection based on field name */
function getResolveTreeByFieldName({ fieldName, selection, }) {
return Object.values(selection).find((resolveTree) => resolveTree.name === fieldName);
}
/** Finds an aliased resolve tree of selection based on field name */
function getAliasedResolveTreeByFieldName({ fieldName, selection, }) {
return Object.values(selection).find((resolveTree) => resolveTree.name === fieldName && resolveTree.alias !== fieldName);
}
/** Generates a field to be used in creating projections */
function generateResolveTree({ name, alias, args = {}, fieldsByTypeName = {}, }) {
return {
[name]: {
name,
alias: alias ?? name,
args,
fieldsByTypeName,
},
};
}
/** Generates missing fields based on an array of fieldNames */
function generateMissingOrAliasedFields({ fieldNames, selection, }) {
return (0, utils_1.removeDuplicates)(fieldNames).reduce((acc, fieldName) => {
const exists = getResolveTreeByFieldName({ fieldName, selection });
const aliased = getAliasedResolveTreeByFieldName({ fieldName, selection });
if (!exists || aliased) {
return { ...acc, ...generateResolveTree({ name: fieldName }) };
}
return acc;
}, {});
}
//# sourceMappingURL=resolveTree.js.map