@neo4j/cypher-builder
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A programmatic API for building Cypher queries for Neo4j
79 lines (78 loc) • 3.79 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 __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;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
var Unwind_1;
Object.defineProperty(exports, "__esModule", { value: true });
exports.Unwind = void 0;
const __1 = __importDefault(require(".."));
const compile_cypher_if_exists_1 = require("../utils/compile-cypher-if-exists");
const Clause_1 = require("./Clause");
const WithCreate_1 = require("./mixins/clauses/WithCreate");
const WithMatch_1 = require("./mixins/clauses/WithMatch");
const WithMerge_1 = require("./mixins/clauses/WithMerge");
const WithReturn_1 = require("./mixins/clauses/WithReturn");
const WithWith_1 = require("./mixins/clauses/WithWith");
const WithDelete_1 = require("./mixins/sub-clauses/WithDelete");
const WithOrder_1 = require("./mixins/sub-clauses/WithOrder");
const WithSetRemove_1 = require("./mixins/sub-clauses/WithSetRemove");
const Projection_1 = require("./sub-clauses/Projection");
const mixin_1 = require("./utils/mixin");
/**
* @see {@link https://neo4j.com/docs/cypher-manual/current/clauses/unwind/ | Cypher Documentation}
* @group Clauses
*/
let Unwind = Unwind_1 = class Unwind extends Clause_1.Clause {
constructor(projection) {
super();
this.projection = new Projection_1.Projection([projection]);
}
unwind(clauseOrColumn) {
if (clauseOrColumn instanceof Unwind_1) {
this.addNextClause(clauseOrColumn);
return clauseOrColumn;
}
else {
const newUnwind = new __1.default.Unwind(clauseOrColumn);
this.addNextClause(newUnwind);
return newUnwind;
}
}
/** @internal */
getCypher(env) {
const projectionStr = this.projection.getCypher(env);
const deleteCypher = (0, compile_cypher_if_exists_1.compileCypherIfExists)(this.deleteClause, env, { prefix: "\n" });
const setCypher = this.compileSetCypher(env);
const orderCypher = (0, compile_cypher_if_exists_1.compileCypherIfExists)(this.orderByStatement, env, { prefix: "\n" });
const nextClause = this.compileNextClause(env);
return `UNWIND ${projectionStr}${setCypher}${deleteCypher}${orderCypher}${nextClause}`;
}
};
exports.Unwind = Unwind;
exports.Unwind = Unwind = Unwind_1 = __decorate([
(0, mixin_1.mixin)(WithWith_1.WithWith, WithDelete_1.WithDelete, WithMatch_1.WithMatch, WithReturn_1.WithReturn, WithSetRemove_1.WithSetRemove, WithCreate_1.WithCreate, WithMerge_1.WithMerge, WithOrder_1.WithOrder)
], Unwind);