RubyonRails中的JavaScript表单验证——让JS正常工作,但我应该把它放在哪里?
我用Ruby为研究生班的最后一个项目创建了一个房地产计算器。该项目将在24小时内(周一)完成,因此我非常感谢您的帮助 该应用程序运行良好,但我需要使用JS添加客户端表单验证。我让JS在基本html表单中正常工作,但现在我需要将此JS功能应用到我们小组在Ruby on Rails环境中使用的表单中 我不确定如何准确地合并这两个表单,以及将JS放在何处,以便init函数不会相互覆盖或导致错误。我假设所有的JS代码都在App/assets/javascript文件夹中,但我有点困惑JS如何正确链接到我创建的每个表单,因为我必须为三个表单执行此操作,因为我有三个实体:投资者实体、房地产实体和抵押贷款实体 我在本地为这三个实体中的每一个进行了所有JS验证,并在下面粘贴了一个抵押。当我在本地创建和测试JS验证时,它们都在各自独立的文件夹中,但在ruby git repo上,我认为所有JS代码都以某种方式共享同一个JS文件夹。。。我还不太了解RoR中的JS,但我假设assets/JS文件夹中的所有JS都是活动的 我很担心,因为如果我将所有JS验证代码都放在该文件夹中,或者将其合并到一个文件中,那么如果所有三个实体都使用相同的名称(“initPage”)调用一个函数,会不会发生冲突 所以。。。六羟甲基三聚氰胺六甲醚。。我想如果我将initPage()重命名为3个单独的函数,如下所示:RubyonRails中的JavaScript表单验证——让JS正常工作,但我应该把它放在哪里?,javascript,jquery,ruby-on-rails,ruby,validation,Javascript,Jquery,Ruby On Rails,Ruby,Validation,我用Ruby为研究生班的最后一个项目创建了一个房地产计算器。该项目将在24小时内(周一)完成,因此我非常感谢您的帮助 该应用程序运行良好,但我需要使用JS添加客户端表单验证。我让JS在基本html表单中正常工作,但现在我需要将此JS功能应用到我们小组在Ruby on Rails环境中使用的表单中 我不确定如何准确地合并这两个表单,以及将JS放在何处,以便init函数不会相互覆盖或导致错误。我假设所有的JS代码都在App/assets/javascript文件夹中,但我有点困惑JS如何正确链接到我
- 初始投资公司()
- 初始化页面()
- initPropertyPage()
- 选项1)将其合并到一个custom.js文件中,并将initPage重命名为三个单独的函数。。或
- 选项2)将js文件分开,并根据调用的表单分别调用它们
- 选项3)选择其他方式…
- 选项4)在期末考试前一天,从短码头上长距离步行
你可以试着在客户端进行一次lok验证。它不再被维护,但它应该使您的生活更轻松,而无需编写任何额外的js 我懒得读你所有的代码,但我建议你使用jQuery,这样你就可以删除所有这些废话。
<% provide(:title, 'Create mortgage') %>
<div class="container">
<div class="page-header">
<h1>Create mortgage</h1>
</div>
<div class="row">
<%= render 'layouts/sidebar' %>
<div class="col-md-9">
<%= form_for(@mortgage) do |f| %>
<%= render 'shared/error_messages', object: f.object %>
<div class="col-md-12">
<div class="col-md-6">
<fieldset class="property_create_group">
<label for="mortgage_name">Mortgage name</label>
<%= f.text_field :name, :class => "form-control" %>
</fieldset>
</div>
<div class="col-md-2 clear-both1">
<fieldset class="property_create_group">
<label for="mortgage_amount">Amount</label>
<%= f.number_field :amount, :class => "form-control" %>
</fieldset>
</div>
<div class="col-md-2">
<fieldset class="property_create_group">
<label for="mortgage_terms">Term (yr)</label>
<%= f.number_field :terms, :class => "form-control" %>
</fieldset>
</div>
<div class="col-md-2">
<fieldset class="property_create_group">
<label for="mortgage_interestRate">Interest</label>
<%= f.number_field :interestRate, :class => "form-control" %>
</fieldset>
</div>
</div>
<div class="col-md-4 col-md-offset-1">
<%= f.submit "Create mortgage", class: "btn btn-large btn-success" %>
</div>
<% end %>
</div><!-- /col-md-9-->
</div><!-- /row-->
</div><!-- /container-->
<head>
<link rel="stylesheet" type="text/css" href="css/forms.css" />
<script src="scripts/utils.js" type="text/javascript"></script>
<script src="scripts/mortgage.js" type="text/javascript"></script>
</head>
<body>
<div id="content">
<form action="#" method="post">
<fieldset><label for="mname">Mortgage name</label>
<input name="mname" id="mname" type="text" /></fieldset>
<fieldset><label for="amount">Amount</label>
<input name="amount" id="amount" type="text" /></fieldset>
<fieldset><label for="terms">Terms</label>
<input name="terms" id="terms" type="text" /></fieldset>
<fieldset><label for="interestRate">Interest Rate</label>
<input name="interestRate" id="interestRate" type="text" /></fieldset>
<input type="submit" id="createMortgage" value="Create Mortgage" disabled="disabled" />
</fieldset>
</form>
</div>
</body>
</html>
window.onload = initPage;
var warnings = {
"mname" : {
"required": "Please enter a name for your mortgage.",
"err" : 0
},
"amount" : {
"required": "Please enter the amount of the mortgage.",
"numbers" : "Only numbers are allowed in the mortgage amount.",
"err" : 0
},
"terms" : {
"required": "Please enter the terms (in years) of the mortgage. ",
"numbers" : "Only numbers (in years) can be given for the mortgage terms.",
"err" : 0
},
"interestRate" : {
"required": "Please enter the amount of the interest rate.",
"numbers" : "Only numbers are allowed in the interest rate.",
"err" : 0
}
}
function initPage() {
addEventHandler(document.getElementById("mname"), "blur", fieldIsFilled);
addEventHandler(document.getElementById("amount"), "blur", fieldIsFilled);
addEventHandler(document.getElementById("amount"), "blur", fieldIsNumbers);
addEventHandler(document.getElementById("terms"), "blur", fieldIsFilled);
addEventHandler(document.getElementById("terms"), "blur", fieldIsNumbers);
addEventHandler(document.getElementById("interestRate"), "blur", fieldIsFilled);
addEventHandler(document.getElementById("interestRate"), "blur", fieldIsNumbers);
}
function fieldIsFilled(e) {
var me = getActivatedObject(e);
if (me.value == "") {
warn(me, "required");
} else {
unwarn(me, "required");
}
}
function fieldIsLetters(e) {
var me = getActivatedObject(e);
var nonAlphaChars = /[^a-zA-Z]/;
if (nonAlphaChars.test(me.value)) {
warn(me, "letters");
} else {
unwarn(me, "letters");
}
}
function fieldIsNumbers(e) {
var me = getActivatedObject(e);
var nonNumericChars = /[^0-9]/;
if (nonNumericChars.test(me.value)) {
warn(me, "numbers");
} else {
unwarn(me, "numbers");
}
}
function warn(field, warningType) {
var parentNode = field.parentNode;
var warning = eval('warnings.' + field.id + '.' + warningType);
if (parentNode.getElementsByTagName('p').length == 0) {
var p = document.createElement('p');
field.parentNode.appendChild(p);
var warningNode = document.createTextNode(warning);
p.appendChild(warningNode);
} else {
var p = parentNode.getElementsByTagName('p')[0];
p.childNodes[0].nodeValue = warning;
}
document.getElementById("createMortgage").disabled = true;
}
function unwarn(field, warningType) {
if (field.parentNode.getElementsByTagName("p").length > 0) {
var p = field.parentNode.getElementsByTagName("p")[0];
var currentWarning = p.childNodes[0].nodeValue;
var warning = eval('warnings.' + field.id + '.' + warningType);
if (currentWarning == warning) {
field.parentNode.removeChild(p);
}
}
var fieldsets =
document.getElementById("content").getElementsByTagName("fieldset");
for (var i=0; i<fieldsets.length; i++) {
var fieldWarnings = fieldsets[i].getElementsByTagName("p").length;
if (fieldWarnings > 0) {
document.getElementById("createMortgage").disabled = true;
return;
}
}
document.getElementById("createMortgage").disabled = false;
}
function createRequest() {
try {
request = new XMLHttpRequest();
} catch (tryMS) {
try {
request = new ActiveXObject("Msxml2.XMLHTTP");
} catch (otherMS) {
try {
request = new ActiveXObject("Microsoft.XMLHTTP");
} catch (failed) {
request = null;
}
}
}
return request;
}
function getActivatedObject(e) {
var obj;
if (!e) {
// early version of IE
obj = window.event.srcElement;
} else if (e.srcElement) {
// IE 7 or later
obj = e.srcElement;
} else {
// DOM Level 2 browser
obj = e.target;
}
return obj;
}
function addEventHandler(obj, eventName, handler) {
if (document.attachEvent) {
obj.attachEvent("on" + eventName, handler);
} else if (document.addEventListener) {
obj.addEventListener(eventName, handler, false);
}
}