tg-knex-query-resolver/scratch/test-query-builder.js

TeselaGen's Knex based query resolver

//Client Side
const QueryBuilder = require('tg-client-query-builder');

const fse = require('fs-extra');
const path = require('path');

//Server Side
const parseQuery = require('../query-parser');
const resolveQuery = require('../query-resolver');

const sqlFormatter = require('sql-formatter');

const log = require('../log');

var qb = new QueryBuilder();

var qry = qb.filter('Author')
            .whereAll({
                firstName: "Adam",
                lastName: "Thomas"
            }, {
                city: "Carmel"
            }, {
                id: qb.related("Post.Author_id")
                        .whereAll({
                            likes: qb.greaterThan(10)
                        }),

                Group_id: qb.related("Group.id")
                            .whereAll({
                                groupType: qb.inList(['admin', 'supervisor'])
                            })
            },
            {
                id: qb.related("AuthorRole.Author_id")
                        .whereAll({
                            Role_id: qb.related("Role.id")
                                       .whereAll({
                                           name: 'Super-Author'
                                       })
                        })
                
                
            }, 
            {
                AuthorType_code: qb.notRelated("AuthorType.code")
                      .whereAll({
                            name: 'Retired'
                       }, {
                           name: 'Deceased'
                       })
            })
            .andWhereAny({
                state: 'IN',
                country: 'USA'
            }, {
                zipCode: '46032'
            }, {
                age: qb.greaterThan(30)
            });

var qryJson = qry.toJSON();
log(qryJson);

var parsedQuery = parseQuery(qryJson);
log(parsedQuery);

var knex = require('knex')({ client: 'pg' });

var qb = resolveQuery(knex, parsedQuery);
var sql = qb.toSQL();
log(sql);

var sqlStr = qb.toString();
log(sqlFormatter.format(sqlStr));

fse.outputFileSync(path.join(__dirname, 'example1.txt'), sqlStr);