[英]Validate date values in Meteor AutoForm SimpleSchema
I have the following Schema: 我有以下架构:
Dates.attachSchema(new SimpleSchema({
description: {
type: String,
label: "Description",
max: 50
},
start: {
type: Date,
autoform: {
afFieldInput: {
type: "bootstrap-datepicker"
}
}
},
end: {
type: Date,
autoform: {
afFieldInput: {
type: "bootstrap-datepicker"
}
}
}
}));
How can I validate that the end
date is not before start
? 如何在
start
之前验证end
日期? I am using MomentJS to handle date types, however my main problem is how I can access other attributes in the custom
function. 我使用MomentJS来处理日期类型,但我的主要问题是我如何访问
custom
函数中的其他属性。
For instance: 例如:
end: {
type: Date,
autoform: {
afFieldInput: {
type: "bootstrap-datepicker"
}
},
custom: function() {
if (moment(this.value).isBefore(start)) return "badDate";
}
}
How can I access start
? 我怎样才能访问
start
?
Furthermore, how can I validate if the start
+ end
date combination is unique , meaning there is no document saved in my database which has the exact same start
and end
date? 此外,如何验证
start
日期和end
日期组合是否唯一 ,这意味着我的数据库中没有保存的文档具有完全相同的start
日期和end
日期?
For the inter-field communication, you can do: 对于现场间通信,您可以:
end: {
type: Date,
autoform: {
afFieldInput: {
type: "bootstrap-datepicker"
}
},
custom: function() {
// get a reference to the fields
var start = this.field('start');
var end = this;
// Make sure the fields are set so that .value is not undefined
if (start.isSet && end.isSet) {
if (moment(end.value).isBefore(start.value)) return "badDate";
}
}
}
You should of course declare the badDate
error first 您当然应该首先声明
badDate
错误
SimpleSchema.messages({
badDate: 'End date must be after the start date.',
notDateCombinationUnique: 'The start/end date combination must be unique'
})
Regarding the uniqueness, first of all simple schema itself does not provide uniqueness check. 关于唯一性,首先简单模式本身不提供唯一性检查。 You should add
aldeed:collection2
for that. 你应该添加
aldeed:collection2
。
Furthermore, collection2 is capable of checking only a single field uniqueness. 此外,collection2只能检查单个字段唯一性。 To accomplish compound indexes, you should use the
ensureIndex
syntax 要完成复合索引,应使用
ensureIndex
语法
Dates._ensureIndex( { start: 1, end: 1 }, { unique: true } )
Even after this, you will not be able to see the error from this compound index on your form because autoform needs to be aware that such error is existing. 即使在此之后,您也无法在表单上看到此复合索引的错误,因为autoform需要知道存在此类错误。
AutoForm.hooks({
NewDatesForm: { // Use whatever name you have given your form
before: {
method: function(doc) {
var form = this;
// clear the error that gets added on the previous error so the form can proceed the second time
form.removeStickyValidationError('start');
return doc;
}
},
onSuccess: function(operation, result, template) {
if (result) {
// do whatever you want if the form submission is successful;
}
},
onError: function(operation, error) {
var form = this;
if (error) {
if (error.reason && error.reason.indexOf('duplicate key error')) {
// We add this error to the first field so it shows up there
form.addStickyValidationError('start', 'notDateCombinationUnique'); // of course you have added this message to your definition earlier on
AutoForm.validateField(form.formId, 'start');
}
}
}
}
});
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