soarjs/test/testJoin.js

A simple relational DB to entity mapper.

/*!
* soar
* authors: Ben Lue
* license: MIT License
* Copyright(c) 2015 Gocharm Inc.
*/
var  assert = require('assert'),
     path = require('path'),
     soar = require('../lib/soar.js');

//soar.setDebug( true );

before(function() {
    soar.config();
});

describe('Test table joins', function()  {

    it('Simple join', function(done) {
    	var  expr = soar.sqlTemplate('Person AS psn')
    					 .join({table: 'PsnLoc AS pl', onWhat: 'psn.psnID = pl.psnID'})
    					 .join({table: 'GeoLoc AS geo', onWhat: 'pl.geID=geo.geID'})
    					 .column(['psn.psnID', 'psn.name', 'latitude', 'longitude'])
    					 .filter({name: 'psn.psnID', op: '='})
    					 .value(),
    		 cmd = {
    		 	op: 'query',
    		 	expr: expr
    		 },
    		 query = {psnID: 1};

    	soar.execute(cmd, query, function(err, data) {
    		//console.log(JSON.stringify(data, null, 4));
    		assert.equal(data.name, 'John', 'wrong name');
    		assert.equal(data.latitude, 25.133398, 'wrong latitude');

    		done();
    	})
    });

    it('join with auto fill', function(done) {
        var  stemp = soar.sqlTemplate('Person AS psn')
                         .join({table: 'PsnLoc As pl', onWhat: 'psn.psnID=pl.psnID'})
                         .join({table: 'GeoLoc AS geo', onWhat: 'pl.geID=geo.geID'})
                         .column(['psn.name', 'geo.latitude']);

        var  cmd = {
                op: 'list',
                expr: stemp.value()
             };

        soar.execute(cmd, function(err, list) {
            //console.log( JSON.stringify(list, null, 4) );
            assert.equal(list.length, 2, '2 entries');
            done();
        });
    });
});