@neo4j/graphql
Version:
A GraphQL to Cypher query execution layer for Neo4j and JavaScript GraphQL implementations
207 lines • 8.63 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 __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.RelationshipAdapter = void 0;
const typescript_memoize_1 = require("typescript-memoize");
const constants_1 = require("../../../constants");
const AttributeAdapter_1 = require("../../attribute/model-adapters/AttributeAdapter");
const UnionEntityAdapter_1 = require("../../entity/model-adapters/UnionEntityAdapter");
const get_entity_adapter_1 = require("../../utils/get-entity-adapter");
const string_manipulation_1 = require("../../utils/string-manipulation");
const RelationshipOperations_1 = require("./RelationshipOperations");
class RelationshipAdapter {
constructor(relationship, sourceAdapter) {
this.attributes = new Map();
const { name, type, args, attributes = new Map(), source, target, direction, isList, queryDirection, nestedOperations, aggregate, isNullable, description, annotations, propertiesTypeName, firstDeclaredInTypeName, originalTarget, } = relationship;
this.name = name;
this.type = type;
this.args = args;
if (sourceAdapter) {
this.source = sourceAdapter;
}
else {
this.source = (0, get_entity_adapter_1.getEntityAdapter)(source);
}
this.direction = direction;
this.isList = isList;
this.queryDirection = queryDirection;
this.nestedOperations = new Set(nestedOperations);
this.aggregate = aggregate;
this.isNullable = isNullable;
this.rawEntity = target;
this.initAttributes(attributes);
this.description = description;
this.annotations = annotations;
this.propertiesTypeName = propertiesTypeName;
this.firstDeclaredInTypeName = firstDeclaredInTypeName;
this.rawOriginalTargetEntity = originalTarget;
if (relationship.getSiblings()) {
this.siblings = relationship.getSiblings();
}
}
get operations() {
if (!this._operations) {
return new RelationshipOperations_1.RelationshipOperations(this);
}
return this._operations;
}
get singular() {
if (!this._singular) {
this._singular = (0, string_manipulation_1.singular)(this.name);
}
return this._singular;
}
get plural() {
if (!this._plural) {
this._plural = (0, string_manipulation_1.plural)(this.name);
}
return this._plural;
}
initAttributes(attributes) {
for (const [attributeName, attribute] of attributes.entries()) {
const attributeAdapter = new AttributeAdapter_1.AttributeAdapter(attribute);
this.attributes.set(attributeName, attributeAdapter);
}
}
findAttribute(name) {
return this.attributes.get(name);
}
/**
* @returns the direction to use in the CypherBuilder
**/
getCypherDirection() {
if (this.queryDirection === "UNDIRECTED") {
return "undirected";
}
return this.cypherDirectionFromRelDirection();
}
cypherDirectionFromRelDirection() {
return this.direction === "IN" ? "left" : "right";
}
// construct the target entity only when requested
get target() {
if (!this._target) {
this._target = (0, get_entity_adapter_1.getEntityAdapter)(this.rawEntity);
}
return this._target;
}
get originalTarget() {
if (!this.rawOriginalTargetEntity) {
return;
}
return (0, get_entity_adapter_1.getEntityAdapter)(this.rawOriginalTargetEntity);
}
isReadable() {
return this.annotations.selectable?.onRead !== false;
}
isFilterableByValue() {
return this.annotations.filterable?.byValue !== false;
}
// this.aggregate refers to the @relationship.aggregate argument and does not have effect on the aggregation filters
isFilterableByAggregate() {
if (this.target instanceof UnionEntityAdapter_1.UnionEntityAdapter) {
return false;
}
return this.annotations.filterable?.byAggregate !== false;
}
isCreatable() {
return this.annotations.settable?.onCreate !== false;
}
isUpdatable() {
return this.annotations.settable?.onUpdate !== false;
}
shouldGenerateFieldInputType() {
return (this.nestedOperations.has(constants_1.RelationshipNestedOperationsOption.CONNECT) ||
this.nestedOperations.has(constants_1.RelationshipNestedOperationsOption.CREATE));
}
shouldGenerateUpdateFieldInputType(ifUnionRelationshipTargetEntity) {
if (this.target instanceof UnionEntityAdapter_1.UnionEntityAdapter) {
if (!ifUnionRelationshipTargetEntity) {
throw new Error("Expected member entity");
}
}
return this.nestedOperations.size > 0;
}
get hasNonNullCreateInputFields() {
return this.createInputFields.some((property) => property.typeHelper.isRequired());
}
get hasCreateInputFields() {
return this.createInputFields.length > 0;
}
get hasUpdateInputFields() {
return this.updateInputFields.length > 0;
}
get hasAnyProperties() {
return this.propertiesTypeName !== undefined;
}
/**
* Categories
* = a grouping of attributes
* used to generate different types for the Entity that contains these Attributes
*/
get aggregableFields() {
return Array.from(this.attributes.values()).filter((attribute) => attribute.isAggregableField());
}
get aggregationWhereFields() {
return Array.from(this.attributes.values()).filter((attribute) => attribute.isAggregationWhereField());
}
get createInputFields() {
return Array.from(this.attributes.values()).filter((attribute) => attribute.isCreateInputField());
}
get updateInputFields() {
return Array.from(this.attributes.values()).filter((attribute) => attribute.isUpdateInputField());
}
get sortableFields() {
return Array.from(this.attributes.values()).filter((attribute) => attribute.isSortableField());
}
get whereFields() {
return Array.from(this.attributes.values()).filter((attribute) => attribute.isWhereField());
}
get temporalFields() {
return Array.from(this.attributes.values()).filter((attribute) => attribute.typeHelper.isTemporal());
}
getPopulatedByFields(operation) {
switch (operation) {
case "CREATE":
return Array.from(this.attributes.values()).filter((attribute) => attribute.populatedByCreateIsGenerated());
case "UPDATE":
return Array.from(this.attributes.values()).filter((attribute) => attribute.populatedByUpdateIsGenerated());
default:
throw new Error("Invalid operation");
}
}
get subscriptionConnectedRelationshipFields() {
return Array.from(this.attributes.values()).filter((attribute) => attribute.isSubscriptionConnectedRelationshipField());
}
}
exports.RelationshipAdapter = RelationshipAdapter;
__decorate([
(0, typescript_memoize_1.Memoize)()
], RelationshipAdapter.prototype, "target", null);
__decorate([
(0, typescript_memoize_1.Memoize)()
], RelationshipAdapter.prototype, "originalTarget", null);
//# sourceMappingURL=RelationshipAdapter.js.map