Develop Reference

increment a counter after each ajax insert then show it as a message

I am using Ajax for inserting data into MySQL with PHP, see my code below:
var c = 0;//initialize counter
function add(){
for (var i = 0; i < 10; i++) {
$.ajax({
type: "POST",
url: "insert.php",
data: {
id: id,
name: name,
email: email,
},
dataType: "json",
success: function (res) {
c++;//increment counter
},
});
}
alert(c);//display counter
}
what I want to do is show the alert (number of times the insert operation is done) after the for loop ends. I have did it like above code it does not work. it always shows zero.
Is there any way to done the same functionality?

this way works.
var c = 0;
async function add() {
for (var i = 0; i < 10; i++) {
await $.ajax({
type: "POST",
url: "https://upwork.codefusiontm.com/stack/002",
data: {
id: "id",
name: "name",
email: "email",
},
dataType: "json",
success: function (res) {
c++;//increment counter
},
});
}
}
$(() => {
add().then(() => {
console.log("=>",c)
})
})
You need to use promisse with the use of async and wait. You use async and create the add method as async
async function add() {
After that, you add await in $.ajax because only in this way ajax will only increment c++ only after the POST returns, this has to be done because you start several POST within the for, and so have to wait for the completion of each to be able to increment correctly.
await $.ajax({
In conclusion, you can finally get the value of variable c
$(() => {
add().then(() => {
console.log("=>",c)
})
})
Don't forget, the method call has to be made within document.ready
$(() => {
})

Consider the following.
var c = 0; //initialize counter
function add() {
for (var i = 0; i < 10; i++) {
$.ajax({
type: "POST",
url: "insert.php",
data: {
id: id,
name: name,
email: email,
},
dataType: "json",
success: function(res) {
c++;
if (i == 10) {
alert(c); //display counter
}
},
});
}
}
When you perform the last loop, i will be 9 and then incremented to 10. So we can check if i is equal to 10, and then we know the loop has ran the last time.

ajax loading before document despite using when().then() function with leaflet JS

Here is what the console reads:
Uncaught TypeError: Cannot read property 'addTo' of undefined
I am currently working with leaflet JS and before the page loads, there is quite a number of Ajax calls going on so that the website can render the acquired data for the user.
I have used two particular methods to synchronize certain ajax calls which rely on the previous. One method is passing the next ajax call into the complete function, whilst another is the when().then() function
The objective with the function below, which is called with the window.onload method, is to determine the users location using the javascript navigator, set the map, and proceed with the ajax calls as mentioned above.
$(window).on('load', function() {
//Pre-loader Jquery
if ($('#preloader').length) {
$('#preloader').delay(200).fadeOut('slow', function() {
$(this).remove();
});
}
//Determine users location, initiate leaflet map, synchornised ajax calls to retreive country core information
navigator.geolocation.getCurrentPosition((success) => {
const crd = success.coords;
onLoadLat = crd.latitude;
onLoadLng = crd.longitude;
currentMap = L.map('map').setView([onLoadLat, onLoadLng], 5);
mapTileLayer.addTo(currentMap);
$.ajax({
url: "libs/php/openCage.php",
type: "POST",
dataType: "JSON",
data: {
latLng: onLoadLat + "+" + onLoadLng
},
success: function(data, textStatus, jqXHRs) {
iso_a2 = data["results"][0]["components"]["ISO_3166-1_alpha-2"];
},
complete: function() {
//Retreive GeoJson file, mark polygon and set initial map for to reflect user location
$.ajax({
url: "libs/php/getCountryBorder.php",
type: "POST",
dataType: "JSON",
data: {
countryCode: iso_a2
},
success: function(geoData, txtSt, jq) {
//Reference details of existing country for further API's and functionality
nameOfCountry = geoData["properties"]["name"];
//Use the index to target the array and create polygon border on map
targetMapData = L.geoJSON(geoData, {
style: borderStyle
});
targetMapData.addTo(currentMap);
currentMap.fitBounds(targetMapData.getBounds(), {
padding: [50, 50],
});
},
complete: function() {
$.ajax({
url: "libs/php/keyCountryInfo.php",
type: "POST",
dataType: "JSON",
data: {
country_code: iso_a2
},
success: function(data, textStatus, jqXHR) {
capitalCity = data["capital"];
currencyCode = data.currencies[0].code;
coordinates = [...data.latlng];
$("#timezoneList").empty();
$("#countryName").text(data["name"]);
$("#region").text(data["region"]);
$("#sub-region").text(data["subregion"]);
$("#countryFlag").attr("src", data["flag"]);
$("#population").text(numeral(data["population"]).format(0, 0));
$("#capital").text(data["capital"]);
$("#timezoneList").text(data["timezones"][0]);
},
complete: function() {
$.when(**getPopularCities()**, getCityWeatherList(), getWikiEntries(onLoadLat, onLoadLng), getGeoNameId(), getCountryImages(), getPublicHolidays(), getLatestExchange(), populateSelect()).
then(function(data, textStatus, jqXHR) {
infoEasyBtn.addTo(currentMap);
wikiEasyBtn.addTo(currentMap);
currencyEasyBtn.addTo(currentMap);
covidEasyBtn.addTo(currentMap);
newsEasyBtn.addTo(currentMap);
weatherEasyBtn.addTo(currentMap);
airportMarkers.addTo(currentMap);
cityMarkers.addTo(currentMap);
siblingMarkers.addTo(currentMap);
});
}
})
}
})
}
})
})
});
within the onload function above, is the getPopularCities() method, which is where the issue is. I have set markers to be shown on the map, but there is one group of markers which do not load, from within that function
Get Popular Cities Method
function getPopularCities() {
let cityPopulation = [];
cityMarkers = new L.MarkerClusterGroup();
if (mainLayer) {
currentMap.removeControl(mainLayer);
}
$.ajax({
url: "libs/php/getCountryCities.php",
type: "POST",
dataType: "JSON",
data: {
getCountryIso: iso_a2
},
success: function(success, textStatus, jqXHRs) {
$("#top10CityTable").empty();
let cityList = success["cities"]; //grab all the cities from the response
//create an array in global variable named cityPopulation, to contain all the markers
cityList.sort((a, b) => {
if (a["population"] > b["population"]) {
return -1
} else {
return 1
}
})
cityList.forEach((element, index) => {
let formatedPop = numeral(element["population"]).format(0, 0);
//depending on how many citys have returned, title the heading accordingly
if (cityList.length < 10) {
$("#top10CityHeading").text("Major Cities")
}
if (cityList.length >= 10) {
$("#top10CityHeading").text("Top 10 Most Populated Cities");
}
//stop index at 9 to get data of top 10 most populated cities for modal section
if (index <= 9) {
$("#top10CityTable").append(`<tr><td>${element["name"]}</td><td>${formatedPop}</td></tr>`)
}
cityMarkers.addLayer(L.marker([element["latitude"], element["longitude"]], {
icon: populatedCities
}).bindPopup(`<h3>${element["name"]}</h3></br>Population: ${formatedPop}`));
})
//create a new overlay prop/value pairing in the global overlays variable
overlays["Major Cities"] = cityMarkers;
},
error: function(text, xh, errorThrown) {
console.log(errorThrown);
},
complete: function() {
let siblingsMapArr = [];
siblingMarkers = new L.MarkerClusterGroup();
$.ajax({
url: "libs/php/getCountrySiblings.php",
type: "POST",
dataType: "JSON",
data: {
countryGeoId: geoNameId
},
success: function(success, textStatus, jqXHRs) {
$("#countrySiblings").empty();
let siblingsArr = success["geonames"];
siblingsArr.sort((a, b) => {
if (a["population"] > b["population"]) {
return -1
} else {
return 1
}
})
let top10Sib = siblingsArr.slice(0, 10);
top10Sib.forEach((element, index) => {
let formatedPop = numeral(element["population"]).format(0, 0);
let rank = index + 1;
siblingMarkers.addLayer(L.marker([element["lat"], element["lng"]], {
icon: citySiblings
}).bindPopup(`<h3>${rank}. ${element["countryName"]}</h3><br/>Population: ${formatedPop}`));
$("#countrySiblings").append(`
<tr>
<td>${element["countryName"]}</td>
<td>${formatedPop}</td>
<td>${element["lat"]} / ${element["lng"]}</td>
</tr>`)
})
overlays["Top 10 Siblings (By Population)"] = siblingMarkers;
},
complete: function(success, data, jq) {
$.ajax({
url: "libs/php/getAirports.php",
type: "POST",
dataType: "JSON",
data: {
countryCode: iso_a2
},
success: function(success, txtStatus, jqXHR) {
let airportsArr = [];
airportMarkers = new L.MarkerClusterGroup();
const airportsList = success["data"];
airportsList.forEach((element) => {
airportMarkers.addLayer(L.marker([element["location"]["latitude"], element["location"]["longitude"]], {
icon: airportIcon
}).bindPopup(`<h3>${element["name"]["original"]}</h3></br>ICAO: ${element["icao"]}</br>Elevation: ${element["elevationFeet"]}<br/>Classification: ${element["classification"]}`));
})
overlays["Airports"] = airportMarkers;
mainLayer = L.control.layers(baseMaps, overlays);
mainLayer.addTo(currentMap);
airportMarkers.addTo(currentMap);
cityMarkers.addTo(currentMap);
siblingMarkers.addTo(currentMap);
}
})
}
})
}
})
}
The markers saved in the variable airportMarkers and cityMarkers appear on the map as well as the leaflet control panel, but the siblings markers do not.
So Im guessing the safe bet is that it is not bringing the data back in time before the page loads? Does anyone have a solution for this or perhaps I have done something wrong in my code?

How can I console "Sucess" present on $.ajax?

How can I show "success" up on Console screen? In a nutshell, I want to show on Console the erros that I forced to happen in a register formulary.
function getRoot() {
var root = "http://" + document.location.hostname + "/login_AMUBA/";
return root;
}
$("#formCadastro").on("submit", function (event) {
event.preventDefault();
var dados = $(this).serialize();
function response() {
return $.ajax({
url: getRoot() + 'controllers/controllerCadastro',
type: 'post',
dataType: 'json',
data: dados,
success: function (response) {
console.log(response);
}
});
}
if (response) {
console.log(success);<--Here
}
});
Finally, the final function (on a php file) should show the error(errors) on console screen, but only "else" works (when it is not commented)
public function validateFinalCad($arrVar)
{
if (count($this->getErro()) > 0) {
$arrResponse = [
"retorno" => "erro",
"erros" => $this->getErro()
];
} else {
/*$this->cadastro->insertCad($arrVar);*/
}
return json_encode($arrResponse);
}

Function is returning value before running inner actions

Using SharePoint's PreSaveAction() that fires when the Save button is clicked, I am trying to run checks and manipulate fields before the form is saved. If PreSaveAction() returns true, the form will be saved and closed.
function PreSaveAction() {
var options = {
"url": "https://example.com/_api/web/lists/getbytitle('TestList')/items",
"method": "GET",
"headers": {
"Accept": "application/json; odata=verbose"
}
}
$.ajax(options).done(function (response) {
var actualHours = response.d.results[0].ActualHours
var personalHours = $("input[title$='Personal Hours']").val();
var regex = /^\d*\.?\d+$/ // Forces digit after decimal point
if (personalHours && regex.test(personalHours)) { // Run if input is not blank and passes RegEx
if (response.d.results[0].__metadata.etag.replace(/"/g, "") == $("td .ms-descriptiontext")[0].innerText.replace("Version: ", "").split('.')[0]) {
// Run if item's data from REST matches version shown in form
addChildItem(id, title, personalHours, actualHours)
}
}
});
return true; // firing before request above begins
}
The function is returning as true before running the jQuery AJAX call which runs addChildItem() that manipulates fields within the form and posts relevant data to a separate list.
function addChildItem(id, title, personalHours, actualHours) {
$.ajax({
method: "POST",
url: "https://example.com/_api/web/lists/getbytitle('ChildList')/items",
data: JSON.stringify({
__metadata: {
'type': 'SP.Data.ChildListListItem'
},
ParentID: id,
Title: title,
HoursWorked: personalHours
}),
contentType: "application/json;odata=verbose",
headers: {
"Accept": "application/json; odata=verbose",
},
success: function (data) {
console.log("success", data);
var actualHoursNum = Number(actualHours);
var personalHoursNum = Number(personalHours);
$("input[title$='Actual Hours']").val(actualHoursNum + personalHoursNum);
$("input[title$='Personal Hours']").val('');
// Input is getting cleared on save but shows previous number when form is opened again
},
error: function (data) {
console.log("error", data);
}
});
}
This is causing the form to accept the field value manipulations but only after the save and before the automatic closure of the form.
I need PreSaveAction() to wait until after addChildItem() is successful to return true but I'm not sure how to do this. I have tried using a global variable named returnedStatus that gets updated when addChildItem() is successful but the return value in PreSaveAction() still gets looked at before the jQuery AJAX call is ran.
How can I solve this?

I got a similar case by setting async: false to add user to group in PreSaveAction.
Original thread
<script language="javascript" type="text/javascript">
function PreSaveAction() {
var check = false;
var controlName = 'MultiUsers';
// Get the people picker object from the page.
var peoplePickerDiv = $("[id$='ClientPeoplePicker'][title='" + controlName + "']");
var peoplePickerEditor = peoplePickerDiv.find("[title='" + controlName + "']");
var peoplePicker = SPClientPeoplePicker.SPClientPeoplePickerDict[peoplePickerDiv[0].id];
if (!peoplePicker.IsEmpty()) {
if (peoplePicker.HasInputError) return false; // if any error
else if (!peoplePicker.HasResolvedUsers()) return false; // if any invalid users
else if (peoplePicker.TotalUserCount > 0) {
// Get information about all users.
var users = peoplePicker.GetAllUserInfo();
for (var i = 0; i < users.length; i++) {
console.log(users[i].Key);
var requestUri = _spPageContextInfo.webAbsoluteUrl + "/_api/web/sitegroups(22)/users";
$.ajax({
url: requestUri,
type: "POST",
async: false,
data: JSON.stringify({ '__metadata': { 'type': 'SP.User' }, 'LoginName': '' + users[i].Key + '' }),
headers: {
"accept": "application/json;odata=verbose",
"content-type": "application/json;odata=verbose",
"X-RequestDigest": $("#__REQUESTDIGEST").val()
},
success: function(data) {
console.log('User Added');
check = true;
},
error: function (error) {
console.log(JSON.stringify(error));
check = false;
}
});
}
}
} else {
console.log('No user');
}
return check;
}
</script>

How do I get the right $.ajax data type

could you please help with this. I have the following javascript:
$('form').click(function (e)
{
if (e.target.getAttribute('id') === 'SubmitAddLevel')
{
var parent = $('#' + e.target.getAttribute('attr')),
var Data = [];
parent.find('.input').children().each(function (i, e)
{
Data.push(e.getAttribute('id') + ":" + e.value);
console.log(Data);
});
$.ajax({
type: "POST",
url: 'AjaxControls.aspx/CreateUserLevel',
//data: Data, //.join(','),
dataType: "text",
contentType: "application/json; charset=utf-8",
//error: function (er) { alert(er); },
success: function (response)
{
if (response.d === "true")
{
$("#ErrorDivAddLevel").html('Level created successfully!').fadeIn('slow');
}
else
{
$("#SuccessDivAddLevel").html('Level creation failed!').fadeIn('slow');
}
},
});
}
The result of 'Data' I got on the console is :["LevelNameAddLevel:Admin", "PriviledgeIDAddLevels:|1|2|3|4|5|6|7|"]. How do I convert this to what ajax will pass to my web menthod?
Here is the web method
<WebMethod(EnableSession:=True)>
Public Shared Function CreateUserLevel(userLevel As String, userPriviledges As String) As String
return "true"
end function

I think your Data should look something more like this:
[{"LevelNameAddLevel":"Admin"}, {"PriviledgeIDAddLevels":"|1|2|3|4|5|6|7|"}]
So you have key / value pairs inside of an array. In the request, you should then be able to fetch the data via the keys in the request.
But I'm not quite sure what this is supposed to mean : "|1|2|3|4|5|6|7|"