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- /**
- * 表单验证
- *
- * @param {Object} rules 验证字段的规则
- * @param {Object} messages 验证字段的提示信息
- *
- */
- class WxValidate {
- constructor(rules = {}, messages = {}) {
- Object.assign(this, {
- data: {},
- rules,
- messages,
- })
- this.__init()
- }
- /**
- * __init
- */
- __init() {
- this.__initMethods()
- this.__initDefaults()
- this.__initData()
- }
- /**
- * 初始化数据
- */
- __initData() {
- this.form = {}
- this.errorList = []
- }
- /**
- * 初始化默认提示信息
- */
- __initDefaults() {
- this.defaults = {
- messages: {
- required: '这是必填字段。',
- email: '请输入有效的电子邮件地址。',
- tel: '请输入11位的手机号码。',
- url: '请输入有效的网址。',
- date: '请输入有效的日期。',
- dateISO: '请输入有效的日期(ISO),例如:2009-06-23,1998/01/22。',
- number: '请输入有效的数字。',
- digits: '只能输入数字。',
- idcard: '请输入18位的有效身份证。',
- equalTo: this.formatTpl('输入值必须和 {0} 相同。'),
- contains: this.formatTpl('输入值必须包含 {0}。'),
- minlength: this.formatTpl('最少要输入 {0} 个字符。'),
- maxlength: this.formatTpl('最多可以输入 {0} 个字符。'),
- rangelength: this.formatTpl('请输入长度在 {0} 到 {1} 之间的字符。'),
- min: this.formatTpl('请输入不小于 {0} 的数值。'),
- max: this.formatTpl('请输入不大于 {0} 的数值。'),
- range: this.formatTpl('请输入范围在 {0} 到 {1} 之间的数值。'),
- }
- }
- }
- /**
- * 初始化默认验证方法
- */
- __initMethods() {
- const that = this
- that.methods = {
- /**
- * 验证必填元素
- */
- required(value, param) {
- if (!that.depend(param)) {
- return 'dependency-mismatch'
- } else if (typeof value === 'number') {
- value = value.toString()
- } else if (typeof value === 'boolean') {
- return !0
- }
- return value.length > 0
- },
- /**
- * 验证电子邮箱格式
- */
- email(value) {
- return that.optional(value) || /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/.test(value)
- },
- /**
- * 验证手机格式
- */
- tel(value) {
- return that.optional(value) || /^1[23456789]\d{9}$/.test(value)
- },
- /**
- * 验证URL格式
- */
- url(value) {
- return that.optional(value) || /^(?:(?:(?:https?|ftp):)?\/\/)(?:\S+(?::\S*)?@)?(?:(?!(?:10|127)(?:\.\d{1,3}){3})(?!(?:169\.254|192\.168)(?:\.\d{1,3}){2})(?!172\.(?:1[6-9]|2\d|3[0-1])(?:\.\d{1,3}){2})(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z\u00a1-\uffff0-9]-*)*[a-z\u00a1-\uffff0-9]+)(?:\.(?:[a-z\u00a1-\uffff0-9]-*)*[a-z\u00a1-\uffff0-9]+)*(?:\.(?:[a-z\u00a1-\uffff]{2,})).?)(?::\d{2,5})?(?:[/?#]\S*)?$/i.test(value)
- },
- /**
- * 验证日期格式
- */
- date(value) {
- return that.optional(value) || !/Invalid|NaN/.test(new Date(value).toString())
- },
- /**
- * 验证ISO类型的日期格式
- */
- dateISO(value) {
- return that.optional(value) || /^\d{4}[\/\-](0?[1-9]|1[012])[\/\-](0?[1-9]|[12][0-9]|3[01])$/.test(value)
- },
- /**
- * 验证十进制数字
- */
- number(value) {
- return that.optional(value) || /^(?:-?\d+|-?\d{1,3}(?:,\d{3})+)?(?:\.\d+)?$/.test(value)
- },
- /**
- * 验证整数
- */
- digits(value) {
- return that.optional(value) || /^\d+$/.test(value)
- },
- /**
- * 验证身份证号码
- */
- idcard(value) {
- return that.optional(value) || /^[1-9]\d{5}[1-9]\d{3}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{3}([0-9]|X)$/.test(value)
- },
- /**
- * 验证两个输入框的内容是否相同
- */
- equalTo(value, param) {
- return that.optional(value) || value === that.data[param]
- },
- /**
- * 验证是否包含某个值
- */
- contains(value, param) {
- return that.optional(value) || value.indexOf(param) >= 0
- },
- /**
- * 验证最小长度
- */
- minlength(value, param) {
- return that.optional(value) || value.length >= param
- },
- /**
- * 验证最大长度
- */
- maxlength(value, param) {
- return that.optional(value) || value.length <= param
- },
- /**
- * 验证一个长度范围[min, max]
- */
- rangelength(value, param) {
- return that.optional(value) || (value.length >= param[0] && value.length <= param[1])
- },
- /**
- * 验证最小值
- */
- min(value, param) {
- return that.optional(value) || value >= param
- },
- /**
- * 验证最大值
- */
- max(value, param) {
- return that.optional(value) || value <= param
- },
- /**
- * 验证一个值范围[min, max]
- */
- range(value, param) {
- return that.optional(value) || (value >= param[0] && value <= param[1])
- },
- }
- }
- /**
- * 添加自定义验证方法
- * @param {String} name 方法名
- * @param {Function} method 函数体,接收两个参数(value, param),value表示元素的值,param表示参数
- * @param {String} message 提示信息
- */
- addMethod(name, method, message) {
- this.methods[name] = method
- this.defaults.messages[name] = message !== undefined ? message : this.defaults.messages[name]
- }
- /**
- * 判断验证方法是否存在
- */
- isValidMethod(value) {
- let methods = []
- for (let method in this.methods) {
- if (method && typeof this.methods[method] === 'function') {
- methods.push(method)
- }
- }
- return methods.indexOf(value) !== -1
- }
- /**
- * 格式化提示信息模板
- */
- formatTpl(source, params) {
- const that = this
- if (arguments.length === 1) {
- return function() {
- let args = Array.from(arguments)
- args.unshift(source)
- return that.formatTpl.apply(this, args)
- }
- }
- if (params === undefined) {
- return source
- }
- if (arguments.length > 2 && params.constructor !== Array) {
- params = Array.from(arguments).slice(1)
- }
- if (params.constructor !== Array) {
- params = [params]
- }
- params.forEach(function(n, i) {
- source = source.replace(new RegExp("\\{" + i + "\\}", "g"), function() {
- return n
- })
- })
- return source
- }
- /**
- * 判断规则依赖是否存在
- */
- depend(param) {
- switch (typeof param) {
- case 'boolean':
- param = param
- break
- case 'string':
- param = !!param.length
- break
- case 'function':
- param = param()
- default:
- param = !0
- }
- return param
- }
- /**
- * 判断输入值是否为空
- */
- optional(value) {
- return !this.methods.required(value) && 'dependency-mismatch'
- }
- /**
- * 获取自定义字段的提示信息
- * @param {String} param 字段名
- * @param {Object} rule 规则
- */
- customMessage(param, rule) {
- const params = this.messages[param]
- const isObject = typeof params === 'object'
- if (params && isObject) return params[rule.method]
- }
- /**
- * 获取某个指定字段的提示信息
- * @param {String} param 字段名
- * @param {Object} rule 规则
- */
- defaultMessage(param, rule) {
- let message = this.customMessage(param, rule) || this.defaults.messages[rule.method]
- let type = typeof message
- if (type === 'undefined') {
- message = `Warning: No message defined for ${rule.method}.`
- } else if (type === 'function') {
- message = message.call(this, rule.parameters)
- }
- return message
- }
- /**
- * 缓存错误信息
- * @param {String} param 字段名
- * @param {Object} rule 规则
- * @param {String} value 元素的值
- */
- formatTplAndAdd(param, rule, value) {
- let msg = this.defaultMessage(param, rule)
- this.errorList.push({
- param: param,
- msg: msg,
- value: value,
- })
- }
- /**
- * 验证某个指定字段的规则
- * @param {String} param 字段名
- * @param {Object} rules 规则
- * @param {Object} data 需要验证的数据对象
- */
- checkParam(param, rules, data) {
- // 缓存数据对象
- this.data = data
- // 缓存字段对应的值
- const value = data[param] !== null && data[param] !== undefined ? data[param] : ''
- // 遍历某个指定字段的所有规则,依次验证规则,否则缓存错误信息
- for (let method in rules) {
- // 判断验证方法是否存在
- if (this.isValidMethod(method)) {
- // 缓存规则的属性及值
- const rule = {
- method: method,
- parameters: rules[method]
- }
- // 调用验证方法
- const result = this.methods[method](value, rule.parameters)
- // 若result返回值为dependency-mismatch,则说明该字段的值为空或非必填字段
- if (result === 'dependency-mismatch') {
- continue
- }
- this.setValue(param, method, result, value)
- // 判断是否通过验证,否则缓存错误信息,跳出循环
- if (!result) {
- this.formatTplAndAdd(param, rule, value)
- break
- }
- }
- }
- }
- /**
- * 设置字段的默认验证值
- * @param {String} param 字段名
- */
- setView(param) {
- this.form[param] = {
- $name: param,
- $valid: true,
- $invalid: false,
- $error: {},
- $success: {},
- $viewValue: ``,
- }
- }
- /**
- * 设置字段的验证值
- * @param {String} param 字段名
- * @param {String} method 字段的方法
- * @param {Boolean} result 是否通过验证
- * @param {String} value 字段的值
- */
- setValue(param, method, result, value) {
- const params = this.form[param]
- params.$valid = result
- params.$invalid = !result
- params.$error[method] = !result
- params.$success[method] = result
- params.$viewValue = value
- }
- /**
- * 验证所有字段的规则,返回验证是否通过
- * @param {Object} data 需要验证数据对象
- */
- checkForm(data) {
- this.__initData()
- for (let param in this.rules) {
- this.setView(param)
- this.checkParam(param, this.rules[param], data)
- }
- return this.valid()
- }
- /**
- * 返回验证是否通过
- */
- valid() {
- return this.size() === 0
- }
- /**
- * 返回错误信息的个数
- */
- size() {
- return this.errorList.length
- }
- /**
- * 返回所有错误信息
- */
- validationErrors() {
- return this.errorList
- }
- }
- export default WxValidate
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