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Adds check whether username already exists

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Saptak S 2020-08-21 17:46:21 +05:30
parent e68266fe63
commit 00cd37bfd3
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4 changed files with 40 additions and 17 deletions
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39
share/static/js/chat.js
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@ -46,7 +46,7 @@ $(function () {
$('#username').on('keyup', function (event) {
if ($('#username').val() !== '' && $('#username').val() !== current_username) {
if (event.keyCode == 13) {
current_username = updateUsername(socket);
current_username = updateUsername(socket) || current_username;
}
}
});
@ -82,17 +82,20 @@ var emitMessage = function (socket) {
var updateUsername = function (socket) {
var username = $('#username').val();
socket.emit('update_username', { username: username });
$.ajax({
method: 'POST',
url: `http://${document.domain}:${location.port}/update-session-username`,
contentType: 'application/json',
dataType: 'json',
data: JSON.stringify({ 'username': username })
}).done(function (response) {
console.log(response);
});
return username;
if (!checkUsernameExists(username)) {
socket.emit('update_username', { username: username });
$.ajax({
method: 'POST',
url: `http://${document.domain}:${location.port}/update-session-username`,
contentType: 'application/json',
dataType: 'json',
data: JSON.stringify({ 'username': username })
}).done(function (response) {
console.log(response);
});
return username;
}
return false;
}
/************************************/
@ -110,6 +113,18 @@ var createUserListHTML = function (connected_users, current_user) {
return userListHTML;
}
var checkUsernameExists = function (username) {
$('#username-error').text('');
var userMatches = $('#user-list li').filter(function () {
return $(this).text() === username;
});
if (userMatches.length) {
$('#username-error').text('User with that username exists!');
return true;
}
return false;
}
var getScrollDiffBefore = function () {
return $('#chat').scrollTop() - ($('#chat')[0].scrollHeight - $('#chat')[0].offsetHeight);
}