@neo4j/graphql
Version:
A GraphQL to Cypher query execution layer for Neo4j and JavaScript GraphQL implementations
67 lines • 2.6 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.
*/
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.CypherPropertySort = void 0;
const cypher_builder_1 = __importDefault(require("@neo4j/cypher-builder"));
const Sort_1 = require("./Sort");
class CypherPropertySort extends Sort_1.Sort {
constructor({ attribute, direction, cypherOperation, }) {
super();
this.attribute = attribute;
this.direction = direction;
this.cypherOperation = cypherOperation;
}
getChildren() {
return [];
}
print() {
return `${super.print()} <${this.attribute.name}>`;
}
getFieldName() {
return this.attribute.name;
}
getSortFields(context, _variable, _sortByDatabaseName = true) {
// sort variable could be defined by the the CypherPropertySort as well as by the CypherScalarOperation
const projectionVar = context.getScopeVariable(this.attribute.name);
return [[projectionVar, this.direction]];
}
getProjectionField(context) {
// sort variable could be defined by the the CypherPropertySort as well as by the CypherScalarOperation
const projectionVar = context.getScopeVariable(this.attribute.name);
return {
[this.attribute.databaseName]: projectionVar,
};
}
getSubqueries(context) {
const scope = context.getTargetScope();
if (scope.has(this.attribute.name)) {
return [];
}
const returnVariable = new cypher_builder_1.default.Variable();
const sortContext = context.setReturn(returnVariable);
const { clauses: subqueries } = this.cypherOperation.transpile(sortContext);
return subqueries;
}
}
exports.CypherPropertySort = CypherPropertySort;
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