@neo4j/graphql
Version:
A GraphQL to Cypher query execution layer for Neo4j and JavaScript GraphQL implementations
55 lines • 2.54 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.default = createConnectionWhereAndParams;
const cypher_builder_1 = __importDefault(require("@neo4j/cypher-builder"));
const compile_cypher_1 = require("../../utils/compile-cypher");
const build_clause_1 = require("../utils/build-clause");
const create_connection_operation_1 = require("./property-operations/create-connection-operation");
function createConnectionWhereAndParams({ whereInput, context, node, nodeVariable, relationship, relationshipVariable, parameterPrefix, }) {
const nodeRef = new cypher_builder_1.default.NamedNode(nodeVariable);
const edgeRef = new cypher_builder_1.default.NamedVariable(relationshipVariable);
const { predicate: andOp, preComputedSubqueries } = (0, create_connection_operation_1.createConnectionWherePropertyOperation)({
context,
whereInput,
edgeRef,
targetNode: nodeRef,
node,
edge: relationship,
});
let subquery = "";
const whereCypher = new cypher_builder_1.default.Raw((env) => {
const cypher = andOp ? env.compile(andOp) : "";
if (preComputedSubqueries) {
subquery = (0, compile_cypher_1.compileCypher)(preComputedSubqueries, env);
}
return [cypher, {}];
});
// NOTE: the following prefix is just to avoid collision until this is refactored into a single cypher ast
const result = (0, build_clause_1.buildClause)(whereCypher, {
context,
prefix: `${parameterPrefix.replace(/\./g, "_").replace(/\[|\]/g, "")}_${nodeVariable}`,
});
return { cypher: result.cypher, subquery, params: result.params };
}
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