@neo4j/graphql
Version:
A GraphQL to Cypher query execution layer for Neo4j and JavaScript GraphQL implementations
91 lines • 3.85 kB
JavaScript
"use strict";
/*
* 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.PropertyInputField = void 0;
const cypher_builder_1 = __importDefault(require("@neo4j/cypher-builder"));
const InputField_1 = require("./InputField");
/** Input field from a property,
* given an inputVariable it will generate a set operation from a property of that variable
*
* ```cypher
* CREATE (var0:Movie)
* SET
* this.id = var0.id
* ```
*/
class PropertyInputField extends InputField_1.InputField {
constructor({ attribute, attachedTo }) {
super(attribute.name, attachedTo);
this.attribute = attribute;
}
getChildren() {
return [];
}
getSetParams(queryASTContext, inputVariable) {
const target = this.getTarget(queryASTContext);
if (!inputVariable) {
throw new Error("Transpile Error: No input variable found");
}
const rightVariable = this.getVariablePath(queryASTContext, inputVariable);
const leftExpr = target.property(this.attribute.databaseName);
const rightExpr = this.coerceReference(rightVariable);
const setField = [leftExpr, rightExpr];
return [setField];
}
getVariablePath(queryASTContext, variable) {
const path = this.attachedTo === "node" ? "node" : "edge";
if (queryASTContext.relationship) {
return variable.property(path).property(this.attribute.name);
}
return variable.property(this.attribute.name);
}
coerceReference(variable) {
if (this.attribute.typeHelper.isSpatial()) {
if (!this.attribute.typeHelper.isList()) {
return cypher_builder_1.default.point(variable);
}
const comprehensionVar = new cypher_builder_1.default.Variable();
const mapPoint = cypher_builder_1.default.point(comprehensionVar);
return new cypher_builder_1.default.ListComprehension(comprehensionVar, variable).map(mapPoint);
}
if (this.attribute.typeHelper.isDateTime()) {
if (!this.attribute.typeHelper.isList()) {
return cypher_builder_1.default.datetime(variable);
}
const comprehensionVar = new cypher_builder_1.default.Variable();
const mapDateTime = cypher_builder_1.default.datetime(comprehensionVar);
return new cypher_builder_1.default.ListComprehension(comprehensionVar, variable).map(mapDateTime);
}
if (this.attribute.typeHelper.isTime()) {
if (!this.attribute.typeHelper.isList()) {
return cypher_builder_1.default.time(variable);
}
const comprehensionVar = new cypher_builder_1.default.Variable();
const mapTime = cypher_builder_1.default.time(comprehensionVar);
return new cypher_builder_1.default.ListComprehension(comprehensionVar, variable).map(mapTime);
}
return variable;
}
}
exports.PropertyInputField = PropertyInputField;
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