jaydata indexedDb joined database -
i have created sample database , test scripts it. database structure is:
i have created jsfiddle it: fiddle click buttons except stress test on top, click tests.
the problem is, works provider websql, fails on provider indexeddb. downloaded pro packages , makes test 3 work partially still fails on test 2 completely. problem found when query database join relation(ex: employees in department.id 1) indexeddb cannot process request.
how can circumvent situation?
whole code is:
index.html:
<!doctype html> <html> <head> <meta charset="utf-8"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script> <script src="jaydatapro/jaydata.min.js"></script> <script src="jaydatapro/jaydataproviders/indexeddbproprovider.min.js"></script> <script src="jaydatapro/jaydataproviders/sqliteproprovider.min.js"></script> <script src="jaydatapro/jaydataproviders/webapiprovider.min.js"></script> <script src="jaydatapro/jaydataproviders/yqlprovider.min.js"></script> <script src="sampledatabase.js"></script> <script src="test.js"></script> <title>jaydata test</title> </head> <body> <div> <h3>database generation</h3> <div> <button onclick="testadddepartments(5);">add departments</button> </div> <div> <button onclick="addemployeelist(testemployeelist(1,100),1);"> employees 1</button> <button onclick="addemployeelist(testemployeelist(101,100),2);">employees 2</button> <button onclick="addemployeelist(testemployeelist(201,100),3);">employees 3</button> <button onclick="addemployeelist(testemployeelist(301,100),4);">employees 4</button> <button onclick="addemployeelist(testemployeelist(401,100),5);">employees 5</button> </div> <div> <button onclick="addstocklist(teststocklist(1,400),1);"> stocks 1</button> <button onclick="addstocklist(teststocklist(401,400),2);"> stocks 2</button> <button onclick="addstocklist(teststocklist(801,400),3);"> stocks 3</button> <button onclick="addstocklist(teststocklist(1201,400),4);"> stocks 4</button> <button onclick="addstocklist(teststocklist(1601,400),5);"> stocks 5</button> </div> <div> <button onclick="addstocklist(teststocklist(2001,5000),2);"> stress test test 3</button> </div> </div> <div> <h3>queries</h3> <button onclick="testsearchemployeename1()">test 1</button> <button onclick="testsearchemployeename2()">test 2</button> <button onclick="testsearchemployeename3()">test 3</button> </div> <div> <h3>results</h3> <p id='result'>result</p> </div> </body> </html> sampledatabase.js:
/* x database database name company company has 3 tables: =departments -id(key,computed) -departmentname(string,required) =employees -id(key,computed) -name(string,required) =stocks -id(key,computed) -description(string) -numitems(int,required) employee connected department stock connected department department has list of stocks , employees do: -insert websql , indexeddb translations document */ $data.entity.extend("org.employee",{ id: {key: true, type: "integer", computed: true}, name: {type: "string", required: true}, department: {type: "org.department", inverseproperty: "employees"} }); $data.entity.extend("org.stock",{ id: {key: true, type: "integer", computed: true}, description: {type: "string"}, numitems: {type: "integer", required: true}, department: {type: "org.department", inverseproperty: "stocks"} }); $data.entity.extend("org.department",{ id: {key: true, type: "integer", computed: true}, departmentname: {type: "string", required: true}, employees:{type: array, elementtype: "org.employee", inverseproperty:"department"}, stocks:{type: array, elementtype: "org.stock", inverseproperty:"department"} }); $data.entitycontext.extend("company",{ employees: {type: $data.entityset, elementtype: org.employee}, departments: {type: $data.entityset, elementtype: org.department}, stocks: {type: $data.entityset, elementtype: org.stock} }); var x= new company({ provider: "indexeddb", databasename: "db", version: 1, dbcreation: $data.storageproviders.dbcreationtype.dropallexistingtables }); function addemployee(emp,department) { x.departments.first( function(it){ return it.id==department.valueof() }, {emp:emp,department:department}, function(dep){ x.departments.attach(dep); emp.department=dep; x.employees.add(emp); x.employees.savechanges(); } ); } function removeemployee(emp_id) { x.employees.first( function(res){ return res.id==emp_id.valueof(); }, {emp_id:emp_id}, function(emp) { x.employees.remove(emp); x.employees.savechanges(); } ); } function changeemployeename(emp_id,new_name) { x.employees.first( function(res){ return res.id==emp_id.valueof(); }, {emp_id:emp_id,new_name:new_name}, function(emp) { x.employees.attach(emp); emp.name=new_name; x.employees.savechanges(); } ); } function removedepartment(dep_id) { x.employees.filter( function(res){ return res.department.id==dep_id }, {dep_id:dep_id} ).foreach( function(it){ x.employees.remove(it) }); x.employees.savechanges(); x.departments.first( function(it) { return it.id==dep_id; }, {dep_id:dep_id}, function(dep) { x.departments.remove(dep); x.departments.savechanges(); } ); } function addstock(stock,department) { x.departments.first( function(it){ return it.id==department.valueof()}, {emp:emp,department:department}, function(dep){ x.departments.attach(dep); stock.department=dep; x.stocks.add(stock); x.stocks.savechanges(); }); } function addemployeelist(list,department) { x.departments.first( function(it){return it.id==department.valueof()}, {department:department,list:list}, function(dep){ (var = 0; < list.length; i++) { list[i].department=dep; }; x.departments.attach(dep); x.employees.addmany(list); x.employees.savechanges(); }); } function addstocklist(list,department) { x.departments.first( function(it){return it.id==department.valueof()}, {department:department,list:list}, function(dep){ (var = 0; < list.length; i++) { list[i].department=dep; }; x.departments.attach(dep); x.stocks.addmany(list); x.stocks.savechanges(); }); } test.js:
//testing script function testadddepartments(number) //number of departments { var dep='department'; (var = 1; <= number.valueof(); i++) { var temp=dep+i.tostring(); x.departments.add({departmentname:temp}); }; x.departments.savechanges(); } function testemployeelist(start,number) { emp_list=new array(); var emp='employee'; (var = start.valueof(); < start.valueof()+number.valueof(); i++) { var temp=emp+i.tostring(); emp_list.push({name:temp}); }; return emp_list; } function teststocklist(start,number) { stock_list=new array(); var stock='stock'; (var = start.valueof(); < start.valueof()+number.valueof(); i++) { var temp=stock+i.tostring(); var num=math.floor((math.random()*1000)+1); stock_list.push({description:temp,numitems:num}); }; return stock_list; } /*function testsearchemployeename(number,limit) { var start= new date().gettime(); var emp='employee'; (var = 1; <= number.valueof(); i++) { num=math.floor((math.random()*limit.valueof())+1); search=emp+num.tostring(); x.employees.filter( function(res) { return res.name==search; }). foreach( function(it) { console.log(it.name); }); }; var elapsed=new date().gettime()-start; console.log("searching database "+number.tostring()+ " entries took "+elapsed.tostring()+" milliseconds"); } */ //static tests function testsearchemployeename1() { var start= new date().gettime(); x.employees.filter( function(res) { return res.name=='employee43'; },{start:start}). toarray(function(it){ var elapsed=new date().gettime()-start; var res="query "+it.length.tostring()+" result took "+ elapsed.tostring()+" milliseconds"; document.getelementbyid('result').innerhtml = res; },{start:start} ); } function testsearchemployeename2() { var start= new date().gettime(); x.employees.filter( function(res) { return res.department.id==1; },{start:start}). toarray(function(it){ var elapsed=new date().gettime()-start; var res="query "+it.length.tostring()+" results took "+ elapsed.tostring()+" milliseconds"; document.getelementbyid('result').innerhtml = res; },{start:start} ); } function testsearchemployeename3() { var start= new date().gettime(); x.stocks.filter( function(res) { return res.numitems>258 || res.department.id<3; },{start:start}). toarray(function(it){ var elapsed=new date().gettime()-start; var res="query "+it.length.tostring()+" results took "+ elapsed.tostring()+" milliseconds"; document.getelementbyid('result').innerhtml = res; },{start:start} ); }
according provider feature matrix, include() , complex type mapping features aren't implemented yet indexeddb, means cannot have navigation properties in indexeddb, in sqlite/websql. can propose feature @ user voice page.
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