Breeze无法识别的正则表达式服务器端
问题描述:
我使用Durandal/Breeze/Knockout开发项目。现在,我需要用正则表达式来验证我的视图上的输入字段。Breeze无法识别的正则表达式服务器端
我第一次尝试是在我的实体框架模型,这样插入数据注释服务器端:
public class Transport
{
[Key]
public int Id { get; set; }
[Required, RegularExpression(@"^\d{2}\.\d{3}$")]
public string AffairNumber { get; set; }
...
然后客户端,我为解析这些注释和插入验证这样的功能:
var addValidationRules = function(entity) {
var entityType = entity.entityType;
if (entityType) {
for (var i = 0; i < entityType.dataProperties.length; i++) {
var property = entityType.dataProperties[i];
var propertyName = property.name;
var propertyObject = entity[propertyName];
var validators = [];
for (var u = 0; u < property.validators.length; u++) {
var validator = property.validators[u];
var nValidator = {
propertyName: propertyName,
validator: function (val, other) {
var error = this.innerValidator.validate(val, { displayName: this.propertyName });
this.message = error ? error.errorMessage : "";
return error === null;
},
message: "",
innerValidator: validator
};
validators.push(nValidator);
}
propertyObject.extend({
validation: validators
});
}
for (var i = 0; i < entityType.foreignKeyProperties.length; i++) {
var property = entityType.foreignKeyProperties[i];
var propertyName = property.name;
var propertyObject = entity[propertyName];
var validators = [];
for (var u = 0; u < property.validators.length; u++) {
var validator = property.validators[u];
var nValidator = {
propertyName: propertyName,
validator: function (val, other) {
var error = this.innerValidator.validate(val, { displayName: this.propertyName });
this.message = error ? error.errorMessage : "";
return error === null;
},
message: "",
innerValidator: validator
};
validators.push(nValidator);
}
propertyObject.extend({
validation: validators
});
if (!property.isNullable) {
//Bussiness Rule: 0 is not allowed for required foreign keys
propertyObject.extend({ notEqual: 0 });
}
}
}
log('Validation rules added', entity, false);
};
这个函数被调用每一个实体,我想验证这样的:
function transportInitializer(transport) {
addValidationRules(transport);
};
此解决方案仅适用于Required
之类的基本验证,但对于正则表达式验证则不起作用。
我实际的解决办法是“扩展”我的观察特性affairNumber
有这样一个规律:
transport.affairNumber.extend({
pattern: {
message: 'The affair number must be correctly formatted',
params: '^\\d{2}\\.\\d{3}$'
}
});
所以当不正确的值在我输入时输入的验证失败。我对此解决方案非常满意,因为我更喜欢在我的实体框架模型(服务器端)上设置验证,而不是在客户端重复验证。
我的问题:Breeze是否允许我验证我的正则表达式检索的服务器端?我忽略了另一个选项吗?
谢谢。