@neo4j/graphql/dist/translate/where/create-where-predicate.js

A GraphQL to Cypher query execution layer for Neo4j and JavaScript GraphQL implementations

"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.createWhereNodePredicate = createWhereNodePredicate;
exports.createWhereEdgePredicate = createWhereEdgePredicate;
const cypher_builder_1 = __importDefault(require("@neo4j/cypher-builder"));
const RelationshipAdapter_1 = require("../../schema-model/relationship/model-adapters/RelationshipAdapter");
const QueryASTContext_1 = require("../queryAST/ast/QueryASTContext");
const QueryASTFactory_1 = require("../queryAST/factory/QueryASTFactory");
const is_interface_entity_1 = require("../queryAST/utils/is-interface-entity");
const wrap_subquery_in_calls_1 = require("../queryAST/utils/wrap-subquery-in-calls");
function createWherePredicate({ factory, queryASTContext, entityOrRel, whereInput, targetElement, targetEntity, }) {
    const filters = [];
    if (entityOrRel instanceof RelationshipAdapter_1.RelationshipAdapter) {
        filters.push(...factory.filterFactory.createEdgeFilters(entityOrRel, whereInput));
    }
    else if ((0, is_interface_entity_1.isInterfaceEntity)(entityOrRel)) {
        filters.push(...factory.filterFactory.createInterfaceNodeFilters({
            entity: entityOrRel,
            targetEntity,
            whereFields: whereInput,
        }));
    }
    else {
        filters.push(...factory.filterFactory.createNodeFilters(entityOrRel, whereInput));
    }
    const subqueries = (0, wrap_subquery_in_calls_1.wrapSubqueriesInCypherCalls)(queryASTContext, filters, [targetElement]);
    const predicates = filters.map((f) => f.getPredicate(queryASTContext));
    const extraSelections = filters.flatMap((f) => f.getSelection(queryASTContext));
    const preComputedSubqueries = [...extraSelections, ...subqueries];
    return {
        predicate: cypher_builder_1.default.and(...predicates),
        preComputedSubqueries: cypher_builder_1.default.utils.concat(...preComputedSubqueries),
    };
}
function createWhereNodePredicate({ targetElement, whereInput, context, entity, targetEntity, }) {
    const factory = new QueryASTFactory_1.QueryASTFactory(context.schemaModel);
    const queryASTEnv = new QueryASTContext_1.QueryASTEnv();
    const queryASTContext = new QueryASTContext_1.QueryASTContext({
        target: targetElement,
        env: queryASTEnv,
        neo4jGraphQLContext: context,
    });
    return createWherePredicate({
        factory,
        queryASTContext,
        entityOrRel: entity,
        whereInput,
        targetElement,
        targetEntity,
    });
}
function createWhereEdgePredicate({ targetElement, relationshipVariable, whereInput, context, relationship, }) {
    const factory = new QueryASTFactory_1.QueryASTFactory(context.schemaModel);
    const queryASTEnv = new QueryASTContext_1.QueryASTEnv();
    const queryASTContext = new QueryASTContext_1.QueryASTContext({
        target: targetElement,
        relationship: relationshipVariable,
        env: queryASTEnv,
        neo4jGraphQLContext: context,
    });
    return createWherePredicate({ factory, queryASTContext, entityOrRel: relationship, whereInput, targetElement });
}
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