toolmanage/src/validate.js

'smart基础工具类npm(beast)'

//获取键值
function getItsVal(object, key) {
    if (!key)
        return null;
    var val = null;
    //key 为函数
    if (key && typeof (key) == "function") {
        val = key(object);
    //key 不为函数    
    } else {
        val = getPropertyValue(object, key);
    };
    return val;
}
//key可能形如'itsExtData.cpc.city.val'
function getPropertyValue(object, key) {
    try {
        var keys = key.split('.');
        if (keys.length == 1) {
            return object[key];
        }
        var nextKeys = key.substring(key.indexOf('.') + 1);
        var nextObject = object[keys[0]];
        return getPropertyValue(nextObject, nextKeys);
    } catch (e) {
        console.log(key);
        console.log(e);
        return null;
    }
}
// 判断数据是否为对象
function isObject(o) {
    var gettype = Object.prototype.toString
    return gettype.call(o) === '[object Object]'
}
// 判断数据是否为数组
function isArray(o) {
    var gettype = Object.prototype.toString
    return gettype.call(o) === '[object Array]'
}
//判断数据是否为空
function isEmpty(val) {
    //对象
    if (isObject(val)) {
        return Object.keys(val).length === 0
    }
    // 数组
    if(isArray(val)) {
        return val.length === 0
    }
    return !val;
}
//正则匹配,regExp:需要传入相应正则规则
function isRegMatch(val, regExp) {
    var pattern = new RegExp(regExp, 'im');
    return !pattern.test(val);
}
//时间转换为毫秒
function dateTransform(date){
    var curdate = new Date(typeof (date) == "string" ? date.replace(/-/g, '/') : date);
    return  curdate.getTime()               
} 
//model 验证对象,validatorConfig为配置的验证条件
//数据结构 
// var model={
//     isUsed:true,
//     telphone:'18782924967'
// }
// var validatorConfig={
//     required:true,
//     preCondition:function(model){
//         return model.isUsed
//     },
//     description:'手机号码不能为空',
//     regExp:'/^1[34578]\d{9}$/',
//     regExpMsg:'手机号码格式不正确'
// }
var validate = function (model, validatorConfig) {
    for (var key in validatorConfig) {

        var rule = validatorConfig[key];
        var description = typeof (rule.description) == "function" ? rule.description(model) : rule.description;
        var preCondition = rule.preCondition;

        var val = getItsVal(model, rule.getVal || key)

        //required:是否必填项  preCondition:预置条件
        if (
            (preCondition == undefined || (preCondition && preCondition(model)))
            && rule.required && isEmpty(val)) {
            return {
                status:false,
                msg:rule.description
            };
        }
        //regExp
        if (
            (preCondition == undefined || (preCondition && preCondition(model)))
            && rule.regExp && isRegMatch(val, rule.regExp)) {
            return {
                status:false,
                msg:rule.regExpMsg
            }
        }
        //min,开始时间不能大于结束时间
        if (
            (preCondition == undefined || (preCondition && preCondition(model)))
            && rule.min) {
            var minVal = getItsVal(model, rule.min);
            if (dateTransform(val) < dateTransform(minVal)) {
                return {
                    status:false,
                    msg:rule.minMsg
                }
            }
        }
        // after
        if (
            (preCondition == undefined || (preCondition && preCondition(model))) &&
            rule.after) {
            var gtVal = getItsVal(model, rule.after);
            if (dateTransform(val) < dateTransform(gtVal)) {
                return {
                    status:false,
                    msg:rule.afterMsg
                }
            }
        }
        // before
        if (
            (preCondition == undefined || (preCondition && preCondition(model))) &&
            rule.before) {
            var gtVal = getItsVal(model, rule.before);
            if (dateTransform(val) > dateTransform(gtVal)) {
                return {
                    status:false,
                    msg:rule.beforeMsg
                }
            }
        }
    }
    return {
        status:true
    };
}
module.exports=validate