我想使用Meteor为表单创建自定义字段验证。我不想要一个打包的解决方案。
到目前为止,这是我的代码。
JavaScript的:
var errorState = new ReactiveVar;
Template.lottoForm.created = function() {
errorState.set('errors', {});
};
Template.lottoForm.events({
'blur input': function(e, t) {
e.preventDefault();
validate($(this));
}
});
Template.lottoForm.helpers({
errorClass: function (key) {
return errorState.get('errors')[key] ? 'has-error' : '';
}
});
Template.errorMsg.helpers({
errorMessages: function(key) {
return errorState.get('errors');
}
});
function throwError(message) {
errorState.set('errors', message)
return errorState.get('errors');
}
function validate(formField) {
$("input").each(function(index, element){
var fieldValue = $(element).val();
if(fieldValue){
if(isNaN(fieldValue) == true) {
throwError('Not a valid Number');
}
}
});
}
HTML:
<template name="lottoForm">
<form class="playslip form-inline" role="form">
<fieldset>
<div class="form-group {{errorClass 'ball0'}}">
<input type="text" class="input-block form-control" id="ball0" maxlength="2" name="ball0">
</div>
<div class="form-group {{errorClass 'ball1'}}">
<input type="text" class="input-block form-control" id="ball1" maxlength="2" name="ball1">
</div>
<div class="form-group {{errorClass 'ball2'}}">
<input type="text" class="input-block form-control" id="ball2" maxlength="2" name="ball2">
</div>
<div class="form-group {{errorClass 'ball3'}}">
<input type="text" class="input-block form-control" id="ball3" maxlength="2" name="ball3">
</div>
<div class="form-group {{errorClass 'ball4'}}">
<input type="text" class="input-block form-control" id="ball4" maxlength="2" name="ball4">
</div>
<div class="form-group {{errorClass 'ball5'}}">
<input type="text" class="input-block form-control" id="ball5" maxlength="2" name="ball5">
</div>
{{> errorMsg}}
<div class="play-btn">
<button type="submit" value="submit" class="btn btn-primary">Play Syndicate</button>
</div>
</fieldset>
</form>
</template
<template name="errorMsg">
<div class="errorMsg">
{{#if errorMessages}}
<div class="list-errors">
{{#each errorMessages}}
<div class="list-item">{{> fieldError}}</div>
{{/each}}
</div>
{{/if}}
</div>
</template>
<template name="fieldError">
<div class="alert alert-danger" role="alert">
{{errors}}
</div>
</template>
我也在控制台中收到此错误消息 - &#34;未捕获错误:{{#each}}目前只接受数组,游标或falsey值。&#34;
为什么我会收到此错误以及如何实施自定义验证?
答案 0 :(得分:0)
正如错误所述,#each模板函数必须传递正确的类型。你确定你的errorMessages助手正在返回一个数组吗?看起来你正在将它初始化为哈希。