In my login script when the username and password are both correct it must go to the next page (main/menu page) of the intel XDK.
My problem is how or what code can I use to call the next page whenever the username and password is correct (login successful)?
function validateForm() {
var formUsername = document.forms.login.username.value;
var formPassword = document.forms.login.password.value;
var MINLENGTH = 5;
// Validate username and password
if (formUsername === null || formUsername === "") {
alert("Username must be filled out");
}
else if (formPassword === null || formPassword === "") {
alert("Password must be filled out");
}
else if (formUsername.length < MINLENGTH || formPassword.length < MINLENGTH) {
alert("The minimum length of username and password at least " + MINLENGTH);
}
else if(formUsername == 'admin' && formPassword == 'admin'){
alert('welcome');
//this is where should i put the code to go at the next page of the XDK API.
return;
}
alert("Login failed!!!");
}
got it guys..
it will be.. like this ..
else if(formUsername == 'admin' && formPassword == 'admin'){
alert('welcome');
activated_page("#menu");
return;
}
Related
After a user sign in successfully, I want to use the User UID to verify the user has selected the right school, I have been able to achieve this task, but the problem is, I have to click the login button twice before an action takes effect.
var sbmit = document.getElementById("submit");
sbmit.onclick = function (e) {
var email = document.getElementById("email").value;
var password = document.getElementById("password").value;
var s = document.getElementById("school");
var school = s.options[s.selectedIndex].value;
e.preventDefault();
if (school == null || school == "") {
alert("Please select your school")
return false;
} else if (email == null || email == "") {
alert('email can\'t be empty')
return false;
} else if (password == null || password == "") {
alert("Password ca\'t be empty")
return false;
} else {
toggleSignIn();
//After signing in, use the user auth id to check if the user exist in the selected school
firebase.auth().onAuthStateChanged(user => {
if (user) {
ref = database.ref('/schools/')
userId = firebase.auth().currentUser.uid;
ref.child(school).orderByChild("AuthID").equalTo(userId).once("value", snapshot => {
if (snapshot.exists()) {
document.location.href = "/Result"
} else {
alert("You have selected the wrong school")
}
});
}
});
}
}
It is very unusual to have an onAuthStateChanged listener in a click handler like that. More likely you want something like:
...
} else {
toggleSignIn();
ref = database.ref('/schools/')
userId = firebase.auth().currentUser.uid;
ref.child(school).orderByChild("AuthID").equalTo(userId).once("value", snapshot => {
if (snapshot.exists()) {
document.location.href = "/Result"
} else {
alert("You have selected the wrong school")
}
});
}
By the way: if you can look up the school for the user with a query, is there any specific reason why you don't simply prepopulate that value for them in the form?
Your code has a flaw. onAuthStateChanged listener is attached every time the button is clicked. This could add multiple listeners and the same code triggered multiple times after each repeated click. onAuthStateChanged listener should be attached only once when the document is loaded. Your code should be something like:
var sbmit = document.getElementById("submit");
sbmit.onclick = function (e) {
var email = document.getElementById("email").value;
var password = document.getElementById("password").value;
var s = document.getElementById("school");
var school = s.options[s.selectedIndex].value;
e.preventDefault();
if (school == null || school == "") {
alert("Please select your school")
return false;
} else if (email == null || email == "") {
alert('email can\'t be empty')
return false;
} else if (password == null || password == "") {
alert("Password ca\'t be empty")
return false;
} else {
toggleSignIn();
}
}
document.onload = function () {
firebase.auth().onAuthStateChanged(user => {
if (user) {
ref = database.ref('/schools/')
userId = firebase.auth().currentUser.uid;
ref.child(school).orderByChild("AuthID").equalTo(userId).once("value", snapshot => {
if (snapshot.exists()) {
document.location.href = "/Result"
} else {
alert("You have selected the wrong school")
}
});
}
});
}
I assume toggleSignIn() function is used to sign in and will change the firebase AuthState on successful sign in.
Im trying to clear only the password and confirm password fields when those are not matched.
Im calling a function when the submit button is pressed which contains a password checking condition. How should I clear only password and confirmpassword inputs if that condition is true?
function checkmatch()
{
var name = $("#username").val();
var address = $("#address").val();
var email = $("#emailid").val();
var mobile = $("#phonenum").val();
var password = $("#newPwd").val();
var cnfirmPassword = $("#confirmPwd").val();
if(password != cnfirmPassword)
{
alert("Passwords do not match.");
return false;
}
else if((name==null || name == "") || (address==null || address == "") || (email==null || email == "") || (mobile=null || mobile == "") || (password==null || password == "") || (cnfirmPassword==null || cnfirmPassword == ""))
{
alert("Please fill all the required fields.");
return false;
}
else
{
$.ajax(
{
type: "POST",
url: "assmt1.php",
datatype: "html",
data: $("#fm1").serialize(),
success: function(response)
{
}
});
alert("Your form has been submitted. Thank you!");
}
}
Is this what you mean?
var password = $("#newPwd").val();
var cnfirmPassword = $("#confirmPwd").val();
if(password != cnfirmPassword)
{
alert("Passwords do not match.");
$("#newPwd").val('').focus(); ///this will not focus because of alert
$("#confirmPwd").val('');
return false;
}
All you need to do is call the same function you used to get the value.
Just pass empty string to val() like so:
$("#newPwd").val('');
$("#confirmPwd").val('');
I have added a loader on my phonegap app on login button it works. but when Some alert occurs like password mismatch or invalid user, The loader doesn't stops. I have added my loader on html page, and want to stop at my Authentication js page in which alerts box are there in my html page to hide on next page I am using
<script language="javascript" type="text/javascript">
$(document).ready(function() {
$('#loading').hide();
});
</script>
how to hide my loader on js page alerts
if(Server == "" || UserName == "" || UserPass == "")
{
if(Server == "")
{
alert("Please enter server address");
}
if(UserName == "")
{
alert("Please enter User Name");
}
if(UserPass == "")
{
alert("Please enter Password");
}
}
else
{
strUrl="https://" + Server + ":1000";
//alert("Test"+strUrl);
sessionStorage.setItem("Server",Server);
window.localStorage.setItem("serUrl", strUrl);
window.localStorage.setItem("serUrl", strUrl);
window.localStorage.setItem("Server", Server);
strSerUrl="http://" + Server + ":8888/";
//alert(strSerUrl);
window.localStorage.setItem("ServerUrl", strSerUrl);
var DivId=sessionStorage.getItem('DivId');
DivId=window.localStorage.getItem("DivId")
// alert(DivId);
Identifier=Identifier+"_"+DivId;
//alert("Create Session1"+Identifier);
window.localStorage.setItem("Identifier", Identifier);
sessionStorage.setItem("Identifier",Identifier);
//alert("above create session")
services.CreateSession(Identifier, SystemID, UserName, UserPass, ConnectionEstablished, AuthenticationFailed);
}
}
function ConnectionEstablished(ResponseData) {
if (ResponseData != "")
{
//alert("resp"+ResponseData)
AuthenticationSuccess(ResponseData);
}
else
alert("Username or Password is incorrect!");
}
you can make the following change to your function to make it work:
function ConnectionEstablished(ResponseData) {
if (ResponseData != "")
{
//alert("resp"+ResponseData)
AuthenticationSuccess(ResponseData);
}
else
{
$('#loading').hide(); //hide the loader!
alert("Username or Password is incorrect!");
}
}
Try if it works!
Problem: The first conditional statement else if was performed, But the next else if statement was not performed. It should performed if both username and password are empty. What did I missed?
$(document).ready(function(){
$("#submit").click(function(e){
var username = $("#username").val();
var password = $("#password").val();
if(username == ""){
alert("account id required");
}else if(password == ""){
alert("password required!");
}else if((username == "" || username == null) && (password == "" || password == null)){
alert("All fields of information is required!");
}else{
$.ajax({
type: "POST",
url: "checklogin.php",
data: "username="+username+"&password="+password,
success:function(data){
if(data == "success"){
window.location.href="main.php";
}else if(data == "unsuccess"){
alert("Invalid account id/password");
$("#username").val('');
$("#password").val('');
}
}
});
}
return false;
});
});
If, else if, else if, else.. In this hierarchy. Any one and only one block will execute.. If your intention is to execute the second else if .. Then make it if...
So your code should be like below.
if((username == "" || username == null) && (password == "" || password == null)){
alert("All fields of information is required!");
}
else{
if(username == ""){
alert("account id required");
}else if(password == ""){
alert("password required!");
}
}
You have to put the condition containing both username and password before the other ones.
if it gets inside an if statement it wont try with the next else, so if it performs the first else if, it won't check the next else if.
you need to do something like this
if(!username && !password){
alert("All fields of information is required!");
}else if(!username){
alert("account id required");
}else if(!password){
alert("password required!");
}else{
here the rest of your code
}
I am trying to use JavaScript to redirect to a PHP page on my site, however, when I do it, nothing happens, apart from the alert boxes if I do not fill in the parameters. Is there something I am doing wrong?
document.getElementById("submit").onclick = check;
function check()
{
if(document.getElementById("name").value == "")
alert("The field 'Name' is required.");
else if (document.getElementById("message").value == "")
alert("The field 'Message' is required");
else
window.location.href = "scripts/main/contact.php?msg=" + document.getElementById("message").value;
}
Your default form action takes place overriding your redirect. Return false from the handler to prevent it from taking place:
function check()
{
if(document.getElementById("name").value == "")
alert("The field 'Name' is required.");
else if (document.getElementById("message").value == "")
alert("The field 'Message' is required");
else
window.location.href = "scripts/main/contact.php?msg=" + document.getElementById("message").value;
return false; // <------ here
}