my controller action:
[HttpPost]
public ActionResult AddPointAndCopyOtherSongToPlaylist(int id)
{
if (CheckIfAddPointToSelf(User.Identity.Name, id))
{
var song = repository.GetSong(id);
foreach (var item in song.Points)
{
if (User.Identity.Name == item.UsernameGavePoint)
{
var data1 = 1;
return Json(new {data1}, JsonRequestBehavior.AllowGet);
}
}
var originalSong = repository.GetSong(id);
var newSong = new Song();
newSong.UserName = User.Identity.Name;
newSong.Title = originalSong.Title;
newSong.YoutubeLink = originalSong.YoutubeLink;
newSong.GenreId = 38;
newSong.Date = DateTime.Now;
repository.AddSong(newSong);
var point = new Point();
point.UsernameGotPoint = originalSong.UserName;
point.UsernameGavePoint = User.Identity.Name;
point.Date = DateTime.Now;
point.Score = 1;
point.OtherSongId = id;
repository.AddPoint(point);
repository.Save();
int data = 2;
//process here
return Json(new { data }, JsonRequestBehavior.AllowGet);
}
else
{
return null;
}
}
based on different scenarios I want to return a javascript and somehow notify the client of what was returned and based in the result do something in the success part of my ajax call:
$.ajax({
beforeSend: function () { ShowAjaxLoader(); },
url: "/Home/AddPointAndCopyOtherSongToPlaylist/",
type: "POST",
data: { id: songId },
success: function (data,one) {
if (data && !one) {
HideAjaxLoader(), ShowMsg("Song Added Successfully");
}
else if(!data) {
HideAjaxLoader(), ShowMsg("you cannot add your own songs");
}
else if (data && one) {
HideAjaxLoader(), ShowMsg("You cannot add the same song twice");
}
},
error: function () { HideAjaxLoader(), ShowMsg("Song could not be added, please try again") }
});
});
I tried many different variations but I think i need something like data.property1 returned and in the client to check if that property exists or soemthing like that.. please help
You need to return your status code within the object.
return Json( new { data1 = "Some Other Data", status = 1} );
Then in your success handler check data.status.
if (data.status === 1) {
alert(data.data1);
}
Related
I want to put a condition if the user want to add a second appointment he receives an alert
function SaveEvent(data) {
$.ajax({
type: "POST",
url: '/home/SaveEvent',
data: data,
success: function (data) {
if (data.status) {
//Refresh the calender
FetchEventAndRenderCalendar();
$('#myModalSave').modal('hide');
}
},
error: function () {
alert('Failed');
}
})
}
})
this is my code in controller :
public JsonResult SaveEvent(Event e)
{
var status = false;
if (e.EventID > 0)
{
//Update the event
var v = db.Events.Where(a => a.EventID == e.EventID).FirstOrDefault();
if (v != null)
{
v.EventTitle = e.EventTitle;
v.StartDate = e.StartDate;
v.EndDate = e.EndDate;
v.EventDescription = e.EventDescription;
v.EventID = e.EventID;
v.ThemeColor = e.ThemeColor;
}
else
db.Events.Add(e);
db.SaveChanges();
status = true;
}
i want to make the user add one time his event and receive an alert i try but not work
I think i can help:
if(Session["appointment"] != "ok")<>
{
if (e.EventID > 0)
{
//Update the event
var v = db.Events.Where(a => a.EventID == e.EventID).FirstOrDefault();
if (v != null)
{
v.EventTitle = e.EventTitle;
v.StartDate = e.StartDate;
v.EndDate = e.EndDate;
v.EventDescription = e.EventDescription;
v.EventID = e.EventID;
v.ThemeColor = e.ThemeColor;
}
else
db.Events.Add(e);
db.SaveChanges();
Session["appointment"] = "ok";
return JSON(new{appointment="ok"});
}
}else
{
return JSON(new {appointment="no-good");
}
and controller:
function SaveEvent(data)
{
$.ajax({
type: "POST",
url: '/home/SaveEvent',
data: data,
success: function(data) {
if (data.appointment == "ok")
{
//Refresh the calender
FetchEventAndRenderCalendar();
$('#myModalSave').modal('hide');
}
else { your msg error here }
},
error: function() {
alert('Failed');
}
})
}
})
dont not forget Session.Clear();
as the user logs out
trying to implement country state dropdown in mvc but couldn't..
conotroller :-
[HttpGet]
public ActionResult GetCities(int StateId)
{
Business.Services.City cityService = new Business.Services.City();
List<Business.Models.City> stateList = cityService.GetCityByStateId(StateId);
//var jsonSerialiser = new JavaScriptSerializer();
//var json = jsonSerialiser.Serialize(stateList);
return Json(new { stateList }, JsonRequestBehavior.AllowGet);
}
method:
public List<Models.City> GetCityByStateId(int StateId)
{
try
{
var list = new List<SelectListItem>();
Collection<DBParameters> parameters = new Collection<DBParameters>();
parameters.Add(new DBParameters() { Name = "StateId", DBType = DbType.Int32, Value = StateId });
var city = this.ExecuteProcedure<Models.City>("GetCityByState", parameters).ToList();
//if (city != null && city.Count > 0)
//{
// list = city.Select(x => new SelectListItem { Text = x.CityName, Value = x.StateId.ToString() }).ToList();
//}
return city;
}
catch (Exception ex)
{
throw;
}
}
change event:
$('.ddlstate').change(function () {
debugger;
$.ajax({
url: '#Url.Action("GetCities", "User")',
type: "GET",
data: { StateId: $(this).val() },
dataType: "json",
success: function (result) {
debugger;
//alert(result.stateList[0].CityId);
$.each(result.stateList, function () {
debugger;
$('.cityddl').append($("<option></option>").val(CityId).html(CityName));
});
},
error: function (result, status, jQxhr) {
alert("Error: " + result + "-" + status + "-" + jQxhr);
}
});
});
i get count of the citites in method and controller but when i run project and change state dropdown i got blank city dropdown. what is wrong?
It looks like you're missing a couple of things in the $.each() call.
You should pass the JSON result from the ajax call to the $.each
You also need to provide a parameter to the callback function so that the callback function has something to work with
It could look something like this:
$.each(result.stateList, function(index, city) {
$('.cityddl').append($("<option></option>").val(city.CityId).html(city.CityName));
});
I'm saving some objects into tables on my Parse Data. But I need to add a constraint or make sure that the data i'm trying to insert is unique. I'm using something like the following code. But i want to guarantee that the eventId (that I'm getting from facebook API) is unique in my tables, so i don't have any redundant information. What is the best way to make it work?
var Event = Parse.Object.extend("Event");
var event = new Event();
event.set("eventId", id);
event.set("eventName", name);
event.save(null, {
success: function(event) {
console.log('New object created with objectId: ' + event.eventId);
},
error: function(event, error) {
console.log('Failed to create new object, with error code: ' + error.message);
}
});
Update:
I'm calling it inside a httpRequest. The following is pretty much what I have and I cant figure out just how to call a beforeSave inside it.
Parse.Cloud.define("hello", function(request, response) {
var query = new Parse.Query("Location");
query.find({
success: function(results) {
console.log(results);
var totalResults = results.length;
var completedResults = 0;
var completion = function() {
response.success("Finished");
};
for (var i = 0; i < totalResults; ++i){
locationId = results[i].get("locationFbId");
Parse.Cloud.httpRequest({
url: 'https://graph.facebook.com/v2.2/'+locationId+'/events?access_token='+accessToken,
success: function(httpResponse) {
console.log(httpResponse.data);
console.log("dsa"+locationId);
for (var key in httpResponse.data) {
var obj = httpResponse.data[key];
for (var prop in obj) {
var eventObj = obj[prop];
if (typeof(eventObj) === 'object' && eventObj.hasOwnProperty("id")) {
var FbEvent = Parse.Object.extend("FbEvent");
var fbEvent = new FbEvent();
fbEvent.set("startDate",eventObj["start_time"]);
fbEvent.set("locationFbId", locationId);
fbEvent.set("fbEventId", eventObj["id"]);
fbEvent.set("fbEventName", eventObj["name"]);
Parse.Cloud.beforeSave("FbEvent", function(request, response) {
var query = new Parse.Query("FbEvent");
query.equalTo("fbEventId", request.params.fbEventId);
query.count({
success: function(number) {
if(number>0){
response.error("Event not unique");
} else {
response.success();
}
},
error: function(error) {
response.error(error);
}
});
});
}
}
}
completedResults++;
if (completedResults == totalResults) {
completion();
}
},
error:function(httpResponse){
completedResults++;
if (completedResults == totalResults)
response.error("Failed to login");
}
});
}
},
error: function() {
response.error("Failed on getting locationId");
}
});
});
So this is occurring in Cloud Code correct? (Im assuming since this is Javascript)
What you could do is create a function that occurs before each "Event" object is saved and run a query to make sure that the event is unique (query based off of "eventId" key, not objectId since the id comes from Facebook). If the event is unique, return response.success(), otherwise return response.error("Event not unique")
EX:
Parse.Cloud.beforeSave("Event", function(request, response) {
if(request.object.dirty("eventId")){
var query = var new Parse.Query("Event");
query.equalTo("eventId", request.object.eventId);
query.count({
success: function(number) {
if(number>0){
response.error("Event not unique");
} else {
response.success();
}
},
error: function(error) {
response.error(error);
}
});
} else {
response.success();
}
});
Parse.Cloud.define("hello", function(request, response) {
var query = new Parse.Query("Location");
query.find({
success: function(results) {
console.log(results);
var totalResults = results.length;
var completedResults = 0;
var completion = function() {
response.success("Finished");
};
for (var i = 0; i < totalResults; ++i){
locationId = results[i].get("locationFbId");
Parse.Cloud.httpRequest({
url: 'https://graph.facebook.com/v2.2/'+locationId+'/events?access_token='+accessToken,
success: function(httpResponse) {
console.log(httpResponse.data);
console.log("dsa"+locationId);
for (var key in httpResponse.data) {
var obj = httpResponse.data[key];
for (var prop in obj) {
var eventObj = obj[prop];
if (typeof(eventObj) === 'object' && eventObj.hasOwnProperty("id")) {
var FbEvent = Parse.Object.extend("FbEvent");
var fbEvent = new FbEvent();
fbEvent.set("startDate",eventObj["start_time"]);
fbEvent.set("locationFbId", locationId);
fbEvent.set("fbEventId", eventObj["id"]);
fbEvent.set("fbEventName", eventObj["name"]);
// Our beforeSave function is automatically called here when we save it (this will happen every time we save, so we could even upgrade our method as shown in its definition above)
fbEvent.save(null, {
success: function(event) {
console.log('New object created with objectId: ' + event.eventId);
},
error: function(event, error) {
console.log('Failed to create new object, with error code: ' + error.message);
}
});
}
}
}
completedResults++;
if (completedResults == totalResults) {
completion();
}
},
error:function(httpResponse){
completedResults++;
if (completedResults == totalResults)
response.error("Failed to login");
}
});
}
},
error: function() {
response.error("Failed on getting locationId");
}
});
});
This can also be accomplished before ever calling the save by querying and only saving if the query returns with a number == 0.
Summary: For those joining later, what we are doing here is checking to see if an object is unique (this time based on key eventId, but we could use any key) by overriding Parse's beforeSave function. This does mean that when we save our objects (for the first time) we need to be extra sure we have logic to handle the error that the object is not unique. Otherwise this could break the user experience (you should have error handling that doesn't break the user experience anyway though).
I am facing a strange issue while writing a Breeze.js with Durandal SPA (largely based on John Papa's Great SPA Jumpstart (https://github.com/johnpapa/PluralsightSpaJumpStartFinal) training ), the issue when a try to make the same server API call multiple times consecutively the server is hit only once and one the second call it seems I get cached data (call doesn't even hit server), this can be replicated in Jumpstart sample too, below is the modified code to replicate this on Jumpstart
var activate = function () {
for (var i = 0 ; i < 2 ; i++) {
datacontext.getSessionPartials(sessions, true);
}
};
var activate = function () {
for (var i = 0 ; i < 2 ; i++)
{
datacontext.getSpeakerPartials(speakers, true);
}
};
Edit- Updated with the complete code :
Code of my Viewmodel
define(['services/datacontext'], function (datacontext) {
var speakers = ko.observableArray();
var activate = function () {
for (var i = 0 ; i < 2 ; i++)
{
datacontext.getSpeakerPartials(speakers, true);
}
};
var refresh = function () {
return datacontext.getSpeakerPartials(speakers, true);
};
var vm = {
activate: activate,
speakers: speakers,
title: 'Speakers',
refresh: refresh
};
return vm;
});
Below is code of my datacontext/service :
define([
'durandal/system',
'services/model',
'config',
'services/logger',
'services/breeze.partial-entities'],
function (system, model, config, logger, partialMapper) {
var EntityQuery = breeze.EntityQuery;
var manager = configureBreezeManager();
var orderBy = model.orderBy;
var entityNames = model.entityNames;
var getSpeakerPartials = function (speakersObservable, forceRemote) {
if (!forceRemote) {
var p = getLocal('Persons', orderBy.speaker);
if (p.length > 0) {
speakersObservable(p);
return Q.resolve();
}
}
var query = EntityQuery.from('Speakers')
.select('id, firstName, lastName, imageSource')
.orderBy(orderBy.speaker);
return manager.executeQuery(query)
.then(querySucceeded)
.fail(queryFailed);
function querySucceeded(data) {
var list = partialMapper.mapDtosToEntities(
manager, data.results, entityNames.speaker, 'id');
if (speakersObservable) {
speakersObservable(list);
}
log('Retrieved [Speaker] from remote data source',
data, true);
}
};
var getSessionPartials = function (sessionsObservable, forceRemote) {
if (!forceRemote) {
var s = getLocal('Sessions', orderBy.session);
if (s.length > 3) {
// Edge case
// We need this check because we may have 1 entity already.
// If we start on a specific person, this may happen. So we check for > 2, really
sessionsObservable(s);
return Q.resolve();
}
}
var query = EntityQuery.from('Sessions')
.select('id, title, code, speakerId, trackId, timeSlotId, roomId, level, tags')
.orderBy('timeSlotId, level, speaker.firstName');
return manager.executeQuery(query)
.then(querySucceeded)
.fail(queryFailed);
function querySucceeded(data) {
var list = partialMapper.mapDtosToEntities(
manager, data.results, entityNames.session, 'id');
if (sessionsObservable) {
sessionsObservable(list);
}
log('Retrieved [Sessions] from remote data source',
data, true);
}
};
var getSessionById = function(sessionId, sessionObservable) {
// 1st - fetchEntityByKey will look in local cache
// first (because 3rd parm is true)
// if not there then it will go remote
return manager.fetchEntityByKey(
entityNames.session, sessionId, true)
.then(fetchSucceeded)
.fail(queryFailed);
// 2nd - Refresh the entity from remote store (if needed)
function fetchSucceeded(data) {
var s = data.entity;
return s.isPartial() ? refreshSession(s) : sessionObservable(s);
}
function refreshSession(session) {
return EntityQuery.fromEntities(session)
.using(manager).execute()
.then(querySucceeded)
.fail(queryFailed);
}
function querySucceeded(data) {
var s = data.results[0];
s.isPartial(false);
log('Retrieved [Session] from remote data source', s, true);
return sessionObservable(s);
}
};
var cancelChanges = function() {
manager.rejectChanges();
log('Canceled changes', null, true);
};
var saveChanges = function() {
return manager.saveChanges()
.then(saveSucceeded)
.fail(saveFailed);
function saveSucceeded(saveResult) {
log('Saved data successfully', saveResult, true);
}
function saveFailed(error) {
var msg = 'Save failed: ' + getErrorMessages(error);
logError(msg, error);
error.message = msg;
throw error;
}
};
var primeData = function () {
var promise = Q.all([
getLookups(),
getSpeakerPartials(null, true)])
.then(applyValidators);
return promise.then(success);
function success() {
datacontext.lookups = {
rooms: getLocal('Rooms', 'name', true),
tracks: getLocal('Tracks', 'name', true),
timeslots: getLocal('TimeSlots', 'start', true),
speakers: getLocal('Persons', orderBy.speaker, true)
};
log('Primed data', datacontext.lookups);
}
function applyValidators() {
model.applySessionValidators(manager.metadataStore);
}
};
var createSession = function() {
return manager.createEntity(entityNames.session);
};
var hasChanges = ko.observable(false);
manager.hasChangesChanged.subscribe(function(eventArgs) {
hasChanges(eventArgs.hasChanges);
});
var datacontext = {
createSession: createSession,
getSessionPartials: getSessionPartials,
getSpeakerPartials: getSpeakerPartials,
hasChanges: hasChanges,
getSessionById: getSessionById,
primeData: primeData,
cancelChanges: cancelChanges,
saveChanges: saveChanges
};
return datacontext;
//#region Internal methods
function getLocal(resource, ordering, includeNullos) {
var query = EntityQuery.from(resource)
.orderBy(ordering);
if (!includeNullos) {
query = query.where('id', '!=', 0);
}
return manager.executeQueryLocally(query);
}
function getErrorMessages(error) {
var msg = error.message;
if (msg.match(/validation error/i)) {
return getValidationMessages(error);
}
return msg;
}
function getValidationMessages(error) {
try {
//foreach entity with a validation error
return error.entitiesWithErrors.map(function(entity) {
// get each validation error
return entity.entityAspect.getValidationErrors().map(function(valError) {
// return the error message from the validation
return valError.errorMessage;
}).join('; <br/>');
}).join('; <br/>');
}
catch (e) { }
return 'validation error';
}
function queryFailed(error) {
var msg = 'Error retreiving data. ' + error.message;
logError(msg, error);
throw error;
}
function configureBreezeManager() {
breeze.NamingConvention.camelCase.setAsDefault();
var mgr = new breeze.EntityManager(config.remoteServiceName);
model.configureMetadataStore(mgr.metadataStore);
return mgr;
}
function getLookups() {
return EntityQuery.from('Lookups')
.using(manager).execute()
.then(processLookups)
.fail(queryFailed);
}
function processLookups() {
model.createNullos(manager);
}
function log(msg, data, showToast) {
logger.log(msg, data, system.getModuleId(datacontext), showToast);
}
function logError(msg, error) {
logger.logError(msg, error, system.getModuleId(datacontext), true);
}
//#endregion
});
Below is the code for BreezeController/WebApi
namespace CodeCamper.Controllers
{
[BreezeController]
public class BreezeController : ApiController
{
readonly EFContextProvider<CodeCamperDbContext> _contextProvider =
new EFContextProvider<CodeCamperDbContext>();
[HttpGet]
public string Metadata()
{
return _contextProvider.Metadata();
}
[HttpPost]
public SaveResult SaveChanges(JObject saveBundle)
{
return _contextProvider.SaveChanges(saveBundle);
}
[HttpGet]
public object Lookups()
{
var rooms = _contextProvider.Context.Rooms;
var tracks = _contextProvider.Context.Tracks;
var timeslots = _contextProvider.Context.TimeSlots;
return new {rooms, tracks, timeslots};
}
[HttpGet]
public IQueryable<Session> Sessions()
{
return _contextProvider.Context.Sessions;
}
[HttpGet]
public IQueryable<Person> Persons()
{
return _contextProvider.Context.Persons;
}
[HttpGet]
public IQueryable<Person> Speakers()
{
return _contextProvider.Context.Persons
.Where(p => p.SpeakerSessions.Any());
}
}
}
Please help/advise.
I get server error:status of 500 when I try to send 2 parameters to my action in a controller with jquery ajax, dont know why?
this is the jquery code:
$(".genreLinks").click(function () {
var genreId = $(this).attr("name");
var songId = $("#hiddenRank").val();
$.ajax({
beforeSend: function () { ShowAjaxLoader(); },
url: "/Home/AddPointAndCopyTopTenFavToPlaylist/",
type: "POST",
data: { id: songId, genre: genreId },
success: function (data) {
if (data.status === 1) {
HideAjaxLoader(), ShowMsg("Song Added Successfully")
}
else if (data.status === 4) {
HideAjaxLoader(), ShowMsg("you cannot add your own songs");
}
else if (data.status === 3) {
HideAjaxLoader(), ShowMsg("Cannot add the song. The song was most likely modified or Deleted, we advise you to refresh the page");
}
else if (data.status === 2) {
HideAjaxLoader(), ShowMsg("You cannot add the same song twice");
}
},
error: function () { HideAjaxLoader(), ShowMsg("Song could not be added, please try again") }
});
});
controller's action code that accepts two parameters from my request:
[HttpPost]
public ActionResult AddPointAndCopyTopTenFavToPlaylist(int id, int genre)
{
var song = repository.GetTopTenFav(id);
if (song != null)
{
if (!(song.UserName.ToLower() == User.Identity.Name.ToLower()))
{
foreach (var item in song.Points)
{
if (User.Identity.Name.ToLower() == item.UsernameGavePoint.ToLower())
{
return Json(new { status = 2 }, JsonRequestBehavior.AllowGet);
}
}
var newSong = new Song();
newSong.UserName = User.Identity.Name;
newSong.Title = song.Title;
newSong.YoutubeLink = song.YoutubeLink;
newSong.GenreId = genre;
newSong.Date = DateTime.Now;
repository.AddSong(newSong);
var point = new Point();
point.UsernameGotPoint = song.UserName;
point.UsernameGavePoint = User.Identity.Name;
point.Date = DateTime.Now;
point.Score = 1;
point.TopTenFavId = id;
repository.AddPoint(point);
repository.Save();
return Json(new { status = 1 }, JsonRequestBehavior.AllowGet);
}
else
{
return Json(new { status = 4 }, JsonRequestBehavior.AllowGet);
}
}
else
{
return Json(new { status = 3 }, JsonRequestBehavior.AllowGet);
}
}
I have also registered my new route:
routes.MapRoute(
"AddPoint", // Route name
"{controller}/{action}/{songId},{genreId}", // URL with parameters
new { controller = "Home", action = "", songId = UrlParameter.Optional, genreId = UrlParameter.Optional } // Parameter defaults
);