这段代码中 before/after/success/error 事件应该放在哪里?
这些 ajax 事件不应该放在这段代码中,因为它们无法绑定到原始的 DOM 元素上。你需要将它们放在原始的 JS 中,只有这样才能将这些元素绑定到发送请求的 DOM 元素上。
#app/assets/javascripts/application.js
$(document).on("ajax:success", "#element", function() {
});
这里有一个不错的资源供您参考:
rails3 rails.js and jquery catching success and failure of ajax requests。
后端:
如果你要处理后端的处理代码,你需要使用某种验证来确定应该发生什么:
def new
@order = Order.new
@product = Product.find(params[:product])
respond_to do |format|
format.html
format.js { @state = "success" }
end
end
(function(){
<% if @state && @state == "success" %>
var $modalWindow = ...
$modalWindow.html("<%= j render('form') %>");
<% else %>
alert ("not successful");
<% end %>
}());
前端:
如果您想在前端处理ajax请求,最好这样做:
#app/assets/javascripts/application.js
$(document).on("ajax:success", "#element", function(){
});
插件
我目前还没有任何文档:
(function( $ ){
$.fn.leanModal = function(options) {
var defaults = {
overlay: 0.5,
overlay_color: "#000",
closeButton: null,
delay: null,
drag: ".modal_title",
removeModal: null,
autoLoad: null,
ajax: false
};
var xhr;
var plugin = this;
var options = $.extend(defaults, options);
plugin.init = function() {
if(options.autoLoad){
$.extend(options, {modal_id: $(this)});
create();
}else{
return this.each(function() {
$(this).click(function(e) {
e.preventDefault();
var href = $(this).attr("href");
var image = CheckImg(href);
var random = Math.floor(Math.random()*90000) + 10000;
var extras = (options.ajax || image) ? {modal_id: "#modal_" + random, ajax: href.replace(/\/$/, '')} : {modal_id: href};
$.extend(options, extras);
create();
});
});
}
}
var create = function() {
if(options.ajax){
load();
switch (true) {
case CheckImg(options.ajax):
append("img", options.modal_id.substring(1), options.ajax);
show();
break;
default:
fetch(options.ajax, function(data){
append("modal", options.modal_id.substring(1), options.ajax, data);
show();
}, function(xhr, text_status, error_thrown){
load();
alert("Sorry, there was an error!");
});
break;
}
}else{
show();
}
}
var fetch = function(link, success, error) {
xhr =
$.ajax({
url: link,
success: function(data) { success(data); },
error: function(data) { error(data); }
});
}
var olay = function(modal_id, removeModal, closeButton, ajax) {
var overlay = document.createElement("div");
overlay.setAttribute("id", "lean_overlay");
document.body.appendChild(overlay);
overlay.onclick = function() { close(modal_id, removeModal, $(closeButton), ajax); return false; };
}
var show = function() {
var id = options.modal_id
var removeModal = options.removeModal
var closeButton = options.closeButton
var drag = options.drag
var ajax = options.ajax
var opacity = options.overlay
olay(id, removeModal, closeButton, ajax);
var modal = $(id);
var overlay = $("#lean_overlay");
var disp = "test";
if (closeButton) {
$(closeButton).css("z-index", "900");
$(closeButton).on("click", function (e) {
e.preventDefault();
close(id, removeModal, $(closeButton));
return false;
});
}
if (ajax) {
modal.waitUntilExists(function() {
load();
display($("#lean_overlay"), options.overlay_color, $(options.modal_id), options.overlay, options.drag);
})
} else { display($("#lean_overlay"), options.overlay_color, $(options.modal_id), options.modal, options.overlay, options.drag); }
}
var close = function(modal, removeModal, closeButton, ajax) {
if(ajax){
if (xhr) { xhr.abort(); }
load(true);
}
$("#lean_overlay").fadeOut(150, function(){
$(this).remove();
if(closeButton) {
closeButton.off("click");
closeButton.removeAttr('style');
}
});
$(modal).fadeOut(150, function(){
if (removeModal) {
$(this).remove();
}
});
}
plugin.init();
};
var CheckImg = function(url) { if(url) { return(url.match(/\.(jpeg|jpg|gif|png)/) != null); }}
var append = function(type, id, src, data) {
var style = element = type;
if (type == "modal") {
var style = "ajax";
var element = "div";
}
var el = document.createElement(element);
el.setAttribute("id", id);
el.setAttribute("src", src);
el.className = 'modal ' + style;
if (data) { el.innerHTML = data; }
document.body.appendChild(el);
}
var display = function(overlay, overlay_color, modal, opacity, drag) {
overlay.css({
"display": "block",
"background": overlay_color,
opacity: 0
});
modal.css({
"display": "block",
"position": "fixed",
"opacity": 0,
"z-index": 10200,
"left": 0,
"right": 0,
"top": 0,
"bottom": 0,
"margin": "auto"
});
overlay.fadeTo(150, opacity);
modal.fadeTo(200, 1);
if(drag.length > 0) { modal.draggable({ handle: drag }); }
}
var load = function(close) {
if (close) { $(document).ajax_load({close: true}); } else { $(document).ajax_load(); }
}
})( jQuery );
用法。
var load = function() {
$('a[rel*=LeanModal]').leanModal({
overlay: 0.9,
removeModal: true,
closeButton: ".title .close"
ajax: true,
drag: ".title"
});
}
$(document).on("ready page:load", load);
/Overlay
position: fixed
z-index: 1500
top: 0px
left: 0px
height: 100%
width: 100%
display: none
&:hover
cursor: pointer
// Modal
.modal
//styling here
<%= link_to "test_ajax", ajax_path, rel: "LeanModal" %>
layout Proc.new {|controller| controller.request.xhr? ? false : "application" }
$(document)
-- 如果您委托给发起请求的元素,则不需要使用它 - https://learn.jquery.com/events/event-delegation/ - Richard Peck