@neo4j/cypher-builder
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A programmatic API for building Cypher queries for Neo4j
128 lines (127 loc) • 6.69 kB
JavaScript
;
/*
* Copyright (c) "Neo4j"
* Neo4j Sweden AB [http://neo4j.com]
*/
var __esDecorate = (this && this.__esDecorate) || function (ctor, descriptorIn, decorators, contextIn, initializers, extraInitializers) {
function accept(f) { if (f !== void 0 && typeof f !== "function") throw new TypeError("Function expected"); return f; }
var kind = contextIn.kind, key = kind === "getter" ? "get" : kind === "setter" ? "set" : "value";
var target = !descriptorIn && ctor ? contextIn["static"] ? ctor : ctor.prototype : null;
var descriptor = descriptorIn || (target ? Object.getOwnPropertyDescriptor(target, contextIn.name) : {});
var _, done = false;
for (var i = decorators.length - 1; i >= 0; i--) {
var context = {};
for (var p in contextIn) context[p] = p === "access" ? {} : contextIn[p];
for (var p in contextIn.access) context.access[p] = contextIn.access[p];
context.addInitializer = function (f) { if (done) throw new TypeError("Cannot add initializers after decoration has completed"); extraInitializers.push(accept(f || null)); };
var result = (0, decorators[i])(kind === "accessor" ? { get: descriptor.get, set: descriptor.set } : descriptor[key], context);
if (kind === "accessor") {
if (result === void 0) continue;
if (result === null || typeof result !== "object") throw new TypeError("Object expected");
if (_ = accept(result.get)) descriptor.get = _;
if (_ = accept(result.set)) descriptor.set = _;
if (_ = accept(result.init)) initializers.unshift(_);
}
else if (_ = accept(result)) {
if (kind === "field") initializers.unshift(_);
else descriptor[key] = _;
}
}
if (target) Object.defineProperty(target, contextIn.name, descriptor);
done = true;
};
var __runInitializers = (this && this.__runInitializers) || function (thisArg, initializers, value) {
var useValue = arguments.length > 2;
for (var i = 0; i < initializers.length; i++) {
value = useValue ? initializers[i].call(thisArg, value) : initializers[i].call(thisArg);
}
return useValue ? value : void 0;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Yield = void 0;
const Clause_1 = require("../clauses/Clause");
const WithCreate_1 = require("../clauses/mixins/clauses/WithCreate");
const WithMatch_1 = require("../clauses/mixins/clauses/WithMatch");
const WithMerge_1 = require("../clauses/mixins/clauses/WithMerge");
const WithReturn_1 = require("../clauses/mixins/clauses/WithReturn");
const WithUnwind_1 = require("../clauses/mixins/clauses/WithUnwind");
const WithWith_1 = require("../clauses/mixins/clauses/WithWith");
const WithDelete_1 = require("../clauses/mixins/sub-clauses/WithDelete");
const WithOrder_1 = require("../clauses/mixins/sub-clauses/WithOrder");
const WithSetRemove_1 = require("../clauses/mixins/sub-clauses/WithSetRemove");
const WithWhere_1 = require("../clauses/mixins/sub-clauses/WithWhere");
const Projection_1 = require("../clauses/sub-clauses/Projection");
const mixin_1 = require("../clauses/utils/mixin");
const Variable_1 = require("../references/Variable");
const as_array_1 = require("../utils/as-array");
const compile_cypher_if_exists_1 = require("../utils/compile-cypher-if-exists");
/** Yield statement after a Procedure CALL
* @see {@link https://neo4j.com/docs/cypher-manual/current/clauses/call/#call-call-a-procedure-call-yield-star | Cypher Documentation}
* @group Procedures
*/
let Yield = (() => {
let _classDecorators = [(0, mixin_1.mixin)(WithReturn_1.WithReturn, WithWhere_1.WithWhere, WithWith_1.WithWith, WithMatch_1.WithMatch, WithUnwind_1.WithUnwind, WithDelete_1.WithDelete, WithMerge_1.WithMerge, WithCreate_1.WithCreate, WithSetRemove_1.WithSetRemove, WithOrder_1.WithOrder)];
let _classDescriptor;
let _classExtraInitializers = [];
let _classThis;
let _classSuper = Clause_1.Clause;
var Yield = class extends _classSuper {
static { _classThis = this; }
static {
const _metadata = typeof Symbol === "function" && Symbol.metadata ? Object.create(_classSuper[Symbol.metadata] ?? null) : void 0;
__esDecorate(null, _classDescriptor = { value: _classThis }, _classDecorators, { kind: "class", name: _classThis.name, metadata: _metadata }, null, _classExtraInitializers);
Yield = _classThis = _classDescriptor.value;
if (_metadata) Object.defineProperty(_classThis, Symbol.metadata, { enumerable: true, configurable: true, writable: true, value: _metadata });
__runInitializers(_classThis, _classExtraInitializers);
}
projection;
constructor(yieldColumns) {
super();
const columns = (0, as_array_1.asArray)(yieldColumns);
this.projection = new YieldProjection(columns);
}
yield(...columns) {
this.projection.addYieldColumns(columns);
return this;
}
/** @internal */
getCypher(env) {
const yieldProjectionStr = this.projection.getCypher(env);
const deleteCypher = (0, compile_cypher_if_exists_1.compileCypherIfExists)(this.deleteClause, env, { prefix: "\n" });
const setCypher = this.compileSetCypher(env);
const orderByCypher = (0, compile_cypher_if_exists_1.compileCypherIfExists)(this.orderByStatement, env, { prefix: "\n" });
const whereStr = (0, compile_cypher_if_exists_1.compileCypherIfExists)(this.whereSubClause, env, {
prefix: "\n",
});
const nextClause = this.compileNextClause(env);
return `YIELD ${yieldProjectionStr}${whereStr}${setCypher}${deleteCypher}${orderByCypher}${nextClause}`;
}
};
return Yield = _classThis;
})();
exports.Yield = Yield;
class YieldProjection extends Projection_1.Projection {
constructor(columns) {
super([]);
this.addYieldColumns(columns);
}
addYieldColumns(columns) {
const parsedColumns = columns.map((c) => this.parseYieldColumn(c));
this.addColumns(parsedColumns);
}
parseYieldColumn(input) {
if (input === "*")
return input;
if (typeof input === "string")
return this.createVariableForStrings(input);
if (Array.isArray(input)) {
return [this.createVariableForStrings(input[0]), input[1]];
}
return input;
}
createVariableForStrings(rawVar) {
if (typeof rawVar === "string")
return new Variable_1.NamedVariable(rawVar);
return rawVar;
}
}