AJAX проверка логина при регистрации
рейтинг: 5.5/10, голосов: 4
Для того чтобы сделать AJAX проверку понадобиться серверная часть PHP и клиентская JavaScript. Файлы ядра Joomla при этом затрагиваться не будут. Данный пример рассматривается на стандартном шаблоне Beez 2.0, поэтому он может не работать на других шаблонах. Но суть останется та же.
Серверная часть
Для проверки существования логина пользователя нужно делать запрос в БД. Для этого можно использовать свой контроллер. Так как этот пример будет рассматривать стандартную регистрацию, соответственно контроллер должен быть в компоненте «com_users». Создадим файл со следующим содержанием:
<?php
defined('_JEXEC') or die;
jimport('joomla.application.component.controller');
/**
* Класс для AJAX проверок
*
* @package Joomla.Site
* @subpackage com_users
* @since 1.7
*/
class UsersControllerCheck extends JController
{
/**
* Метод проверки имени пользователя
*/
public function name()
{
// проверка значения сессии
JRequest::checkToken('get') or jexit(JText::_('JINVALID_TOKEN'));
$name = JRequest::getVar('name', null, 'GET');
if ($name) {
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->select('id');
$query->from('#__users');
$query->where('username = '. $db->quote($name));
$db->setQuery($query);
if ($db->loadResult()) {
die('логин занят');
} else {
die('логин свободен');
}
}
}
}
В этом файле собственно и будет происходить проверка логина пользователя. На вход должны поступать две переменные — имя пользователя и значение сессии. Остается написать клиентскую часть, которая будет отправлять эти данные.
Клиентская часть
В данном примере будет рассмотрен пример на mootools. Переопределите макет регистрации «components/com_users/views/registration/tmpl/default.php» в шаблоне и добавьте в него следующий JavaScript:
<script type="text/javascript">
<!--
window.addEvent("domready", function(){
document.id("jform_username").addEvent("blur", function(){
//проверка на корректность заполнения поля
//стандартная валидация добавляет class invalid,
//если поле заполнено неправильно.
var regex=/invalid/g;
if (regex.test(this.get('class')) || this.value.length < 2) return;
//получаем значение сессии из формы
//Элемент с именем сессии
//В данном случае это будет последний input в div-e
var form = this.getParent('form');
var inputs = form.getChildren('div input');
var s = inputs[inputs.length-1].name;
//удаляем элемент если установлен
if(this.getNext('span')) this.getNext('span').destroy();
//создаем новый элемент
var myElement = new Element('span', {'style':'margin-left:10px'});
myElement.inject(this, 'after');
//создаем AJAX запрос
var myRequest = new Request({
url: 'index.php?option=com_users&task=check.name&format=raw',
method: 'get',
onRequest: function(){
myElement.set('text', 'проверка логина');
myElement.addClass('ajax-loader');
},
onSuccess: function(responseText){
myElement.removeClass('ajax-loader');
myElement.set('text', responseText);
if (responseText == 'логин занят') {
myElement.getPrevious('input').addClass('invalid');
}
},
onFailure: function(){
myElement.set('text', 'Запрос не удался');
}
});
//посылаем запрос с данными
myRequest.send('name='+this.value+'&'+s+'=1')
})
})
//-->
</script>
Для «прелооадера» AJAX, загрузите какую-нибудь картинку в директорию «images» в шаблоне, например «ajax-loader.gif». И добавьте в свой файл стилей CSS, примерно следующие строки:
.ajax-loader {background:url(../images/ajax-loader.gif) no-repeat left;padding-left:20px;}
По желанию, этот пример можно подкорректировать под свои нужды шаблона, путем небольшой правки JS и CSS.
После этих манипуляций при регистрации пользователя, в форме регистрации должны добавиться изменения. А именно, после того как фокус уйдет с поля «Логин» в форме, данное поле не будет пустым и будет соответствовать требованиям стандартной JS проверки. Рядом с этим полем появиться новый элемент «span». В котором будет отображаться результат проверки логина пользователя.
Кинулся попробовать, но с ходу не получилось. Можно по подробнее описать действия?
пишет запрос не удался.
That is a good tip particularly to those fresh to the blogosphere.
Simple but very precise info… Many thanks
for sharing this one. A must read post!
Organic search site visitors іs distinct.
Ranking hіgh in the search engines іs tough.
Copyright © ALTA Language Services, Inc.
Подготовка сайта поддержки и посадочных страниц.
Проверить скорость загрузки Вашего сайта.
I pay a quick visit each day some sites and information sites
to read articles or reviews, however this web site provides feature based
articles.
Hi! I could have sworn I've been to this website before but after reading through
some of the post I realized it's new to me. Anyhow, I'm
definitely delighted I found it and I'll be book-marking and checking back often!
Hi everybody, here every one is sharing these kinds of familiarity, thus it's pleasant
to read this website, and I used to go to see this web site everyday.
Thank you for the good writeup. It in fact was a amusement account
it. Look advanced to more added agreeable from you!
However, how can we communicate?
Our high-class escorts supply a variety of solutions.
A?l attractive escort girls Paris аre discreet and expert.
These escort girls are incredible and damn attractive.
I do not even know how I ended up here, but I
thought this post was good. I don't know who you are but certainly you are going to a famous blogger
if you aren't already ;) Cheers!
Why users still make use of to read news papers when in this technological globe all
is available on web?
Hello, I log on to your blogs daily. Your writing style is witty, keep up the good work!
If you are going for best contents like I do, only go to see this web site every day because it provides feature contents, thanks
Si ya sabes qual tu negocio necesita el posicionamiento web,
y quieres saber c?mo trabajamos en Tu Posicionamiento
Web, haz click aqu? y rellena el formulario.
Thank you for sharing your info. I really appreciate your efforts and I
am waiting for your next write ups thanks once again.
Hello everyone, it's my first pay a visit at this website,
and article is in fact fruitful for me, keep up posting such content.
Greetings! Very useful advice within this article! It's the little changes that produce the largest changes.
Many thanks for sharing!
Hey there! Someone in my Myspace group shared this website with us so I came to take a look.
I'm definitely loving the information. I'm bookmarking and
will be tweeting this to my followers! Outstanding blog
and excellent design and style.
My brother suggested I might like this web site.
He was entirely right. This post truly made my day.
You cann't imagine simply how much time I had spent for
this info! Thanks!
Howdy very cool blog!! Man .. Excellent .. Wonderful ..
I will bookmark your blog and take the feeds also?
I'm happy to search out so many helpful information right here within the post,
we want develop more strategies in this regard, thanks for
sharing. . . . . .
Awesome! Its genuinely amazing paragraph, I have got much
clear idea regarding from this post.
I blog frequently and I seriously appreciate your content.
This great article has really peaked my interest.
I am going to bookmark your site and keep checking for new details about once a
week. I opted in for your Feed too.
Just desire to say your article is as amazing. The clearness in your post
is simply excellent and i can assume you are an expert on this subject.
Well with your permission allow me to grab your
RSS feed to keep up to date with forthcoming post.
Thanks a million and please carry on the gratifying
work.
What's up i am kavin, its my first time to
commenting anyplace, when i read this post i thought i
could also create comment due to this sensible post.
I have been exploring for a bit for any high-quality
articles or blog posts in this sort of house . Exploring in Yahoo I
finally stumbled upon this site. Studying this info So i'm glad to convey that I've a very good
uncanny feeling I came upon exactly what I needed. I so much for sure will make certain to do not overlook this
site and provides it a glance regularly.
It's hard to come by knowledgeable people on this subject, however, you seem
like you know what you're talking about! Thanks
l.a.dd.e.rsuq.xx3.kz/go.php?url=https://original.directory/listings/part-time/hard-money-loan-example-for-dummies.html
sonneck-wetter.de/template/plugins/windDirection/redirect.php?url=metaverseihale.com/apartment/5-attractive-ways-to-improve-your-hard-money-loan-calculator-abilities.html
Hi there this is kinda of off topic but I was wanting to know if blogs use WYSIWYG editors or if you have to manually code with HTML.
I'm starting a blog soon but have no coding experience so I wanted to get guidance from someone with experience.
Any help would be greatly appreciated!
https://listaus.ukkos.org/rovaniemi/exceptional-website-hard-money-loans-for-bad-credit-will-show-you-how-to-get-there.html
https://just-jobs.co.uk/audio/the-basics-of-best-hard-money-lenders-revealed.html
https://lensoh.com/bbs/board.php?bo_table=free&wr_id=121516
https://classifieds.miisbotswana.com/housing/find-out-how-to-slap-down-a-how-do-hard-money-loans-work.html
enterline.co.kr/bbs/board.php?bo_table=free&wr_id=28678
https://nacele-romania.ro/openclass/nacele-electrice/if-you-don-t-hard-money-loan-requirements-now-you-may-hate-yourself-later.html
Spot on with this write-up, I actually believe this web site needs far more attention. I'll probably be
back again to read through more, thanks for the information!
https://wiki.isefs.uni-due.de/index.php?title=Rumors_Lies_And_Hard_Money_Loans_For_Bad_Credit
https://wiki.isefs.uni-due.de/index.php?title=How_Five_Issues_Will_Change_The_Way_In_Which_You_Method_Best_Hard_Money_Lenders
https://wiki.volleyball-bayern.de/index.php?title=Being_A_Star_In_Your_Business_Is_A_Matter_Of_Best_Hard_Money_Lenders
https://wiki.revolutionot.com/wiki/User:ImogeneVancouver
korjobs.com/HRForms/2079441
https://wiki.volleyball-bayern.de/index.php?title=Are_You_Able_To_Spot_The_A_30_Year_Hard_Money_Loans_Professional
I'm really enjoying the design and layout of your blog.
It's a very easy on the eyes which makes it much more pleasant
for me to come here and visit more often. Did you hire out a developer to create your theme?
Excellent work!
https://class.xmap.africa/apartment/want-extra-inspiration-with-hard-money-loan-requirements-learn-this.html
https://lagaoo.dribrahimmasoodi.com/au-pair/every-thing-it-s-worthwhile-to-find-out-about-hard-money-loans-for-bad-credit.html
https://call.ebimarketing.com/au-pair/the-ulitmate-hard-money-loan-requirements-trick-1.html
https://listaus.ukkos.org/kirkkonummi/what-are-how-do-hard-money-loans-work.html
https://lagaoo.dribrahimmasoodi.com/tv/find-out-how-to-win-associates-and-affect-people-with-hard-money-loan-requirements.html
mkuc.org/xe/index.php?mid=comm_3&document_srl=3144070
An outstanding share! I've just forwarded this onto a colleague who had been conducting a little research on this.
And he in fact ordered me lunch simply because I discovered it for him...
lol. So let me reword this.... Thank YOU for the meal!!
But yeah, thanx for spending time to talk about this matter here on your
web page.
https://a1seodirectory.com/text-analysis-tools-websites/prime-10-best-hard-money-lenders-florida.html
https://lastc411.com/au-pair/exhausting-cash-lenders-what-they-re-the-rates-and-more.html
https://ad.gedamarket.com/english/congratulations-your-hard-money-loan-example-is-about-to-cease-being-related.html
https://class.xmap.africa/other-languages/best-hard-money-lenders-with-out-driving-yourself-loopy.html
https://pinoymeta.com/languages/fears-of-an-expert-30-year-hard-money-loans.html
https://lagaoo.dribrahimmasoodi.com/au-pair/the-basics-of-hard-money-loans-for-beginners-which-you-can-benefit-from-beginning-today.html
Этот вывод я хотел протолкнуть вам в
головы.
SLOT ??????? ?????????????????? ????slot?????????? ????????????????????????????????????????????????????????????? ??????????????????????????? 2022 ??????????????????????
SLOT ??????????????????? SLOT ??????? ?????????????????? ????????????????????????????
???????????????? ?????????? ????????????????????????????????????????????? ???????????SLOT ONLINE????????????????? SLOT ????????? ???????????????????????????? SLOT DEMO ??????????????????????????? USER ?????? SLOT ??????? ??????????????????
???????????????????? SLOT?????????????????????????? ?????????????? ???????????????????????????????????????????????????????????????????????????????????? ??????????????????????
???????????? ??????????????????????????? slot????????????? ???????????? ??????? ???????????????????????????????????????????????????
???????? ?????????????????????????????????????????????????????????????? ?????????????????? ???SLOT ONLINE ?????????????????????????????????????????????????????? ??????????????????????????????? slot ??????? ???????????? ???????????????? ????????????? ???????????? ?????????????????????????? ?????? ???????????????????????? ??????????????????? ???? ????????????????????????????????????????? ??????????????????????????????????? ??????????????????????????? ?????????????? ????????????????????????????????? ??????????????????? ?????????????????????????????????? ??????????????????? ???1??????????????? SLOT ?????????????????????????????????????????????????????? ??????????????????????????? ???????????? ????????????????????????????? ?????????????? ??????????????????????????????? ???????????????????????????????????????????????????????????????????????????????????????????????? ??????????????????? ???????????? ??????????????????????????????????????????? ???????????????
SLOT ONLINE ??????? ???????? ?????????????
????????? ??????????????????????? 15 ????????????????????????????????????????????????????????????????????????????????? pg
slot ??????? , XO SLOT ??????? , ??????? ?????JOKER ,
SUPER SLOT ???????? , AMB SLOT ???????? , pragmatic ???????? ?????????????????????????? ????????????????????
SLOT ????????????????????????????????????? ??????? ???????????????????? ??????????????????
?? ????????? ?????????????????????? 24 ??.
????????????? ??? ??????????????? ?????????????????????????????????? ?????????????? slot ?????????????????
??????????????????? ?????????????????? ????????????????????????????????????????? SLOT ?????????? SLOT ONLINE,????????????? ,
?????????????? , ROULETTE ,
LOTTERY , BLACKJACK , POKER , ????????? ?????????????????????? ?????????????????????????????? 200 ????????????????????????????? 2 ????????????????????????????????? ????????????????????
???????????? ?????????????????????????????????????????????????????????????????????????????????? 24
??.
????????????
?????? ?????? ????? ??? ?????? ?????? ??? ???????????? ????? ?????? ?????? ????? ??? ?????? ?????? ??? ?????? ?????? ?????
?????? ?????? ????? ??? ?????? ?????? ???
?????? ?????? ????? ?????? ?????? ????? ??? ?????? ??????
??? ?????? ?????? ????? ?????? ?????? ????? ??? ?????? ??????
??? ?????? ?????? ????? ?????? ?????? ????? ??? ?????? ?????? ???
?????? ?????? ????? ?????? ?????? ????? ??? ?????? ?????? ??? ??????
?????? ????? ?????? ?????? ????? ??? ?????? ?????? ??? ?????? ?????? ????? ?????? ?????? ?????
??? ?????? ?????? ??? ?????? ?????? ????? ?????? ?????? ????? ??? ?????? ?????? ??? ??????
???????????