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418 lines
9.8 KiB
418 lines
9.8 KiB
2 years ago
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/**
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* 表单验证
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*
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* @param {Object} rules 验证字段的规则
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* @param {Object} messages 验证字段的提示信息
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*
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*/
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class WxValidate {
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constructor(rules = {}, messages = {}) {
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Object.assign(this, {
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rules,
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messages,
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})
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this.__init()
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}
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/**
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* __init
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*/
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__init() {
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this.__initMethods()
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this.__initDefaults()
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this.__initData()
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}
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/**
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* 初始化数据
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*/
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__initData() {
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this.form = {}
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this.errorList = []
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}
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/**
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* 初始化默认提示信息
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*/
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__initDefaults() {
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this.defaults = {
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messages: {
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required: '这是必填字段。',
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email: '请输入有效的电子邮件地址。',
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tel: '请输入11位的手机号码。',
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url: '请输入有效的网址。',
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date: '请输入有效的日期。',
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dateISO: '请输入有效的日期（ISO），例如：2009-06-23，1998/01/22。',
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number: '请输入有效的数字。',
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digits: '只能输入数字。',
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idcard: '请输入18位的有效身份证。',
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equalTo: this.formatTpl('输入值必须和 {0} 相同。'),
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contains: this.formatTpl('输入值必须包含 {0}。'),
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minlength: this.formatTpl('最少要输入 {0} 个字符。'),
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maxlength: this.formatTpl('最多可以输入 {0} 个字符。'),
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rangelength: this.formatTpl('请输入长度在 {0} 到 {1} 之间的字符。'),
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min: this.formatTpl('请输入不小于 {0} 的数值。'),
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max: this.formatTpl('请输入不大于 {0} 的数值。'),
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range: this.formatTpl('请输入范围在 {0} 到 {1} 之间的数值。'),
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}
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}
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}
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/**
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* 初始化默认验证方法
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*/
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__initMethods() {
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const that = this
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that.methods = {
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/**
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* 验证必填元素
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*/
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required(value, param) {
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if (!that.depend(param)) {
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return 'dependency-mismatch'
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} else if (typeof value === 'number') {
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value = value.toString()
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} else if (typeof value === 'boolean') {
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return !0
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}
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return value.length > 0
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},
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/**
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* 验证电子邮箱格式
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*/
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email(value) {
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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)
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},
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/**
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* 验证手机格式
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*/
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tel(value) {
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return that.optional(value) || /^1[34578]\d{9}$/.test(value)
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},
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/**
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* 验证URL格式
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*/
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url(value) {
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return that.optional(value) || /^(?:(?:(?:https?|ftp):)?\/\/)(?:\S+(?::\S*)?@)?(?:(?!(?:10|127)(?:\.\d{1,3}){3})(?!(?:169\.254|192\.168)(?:\.\d{1,3}){2})(?!172\.(?:1[6-9]|2\d|3[0-1])(?:\.\d{1,3}){2})(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z\u00a1-\uffff0-9]-*)*[a-z\u00a1-\uffff0-9]+)(?:\.(?:[a-z\u00a1-\uffff0-9]-*)*[a-z\u00a1-\uffff0-9]+)*(?:\.(?:[a-z\u00a1-\uffff]{2,})).?)(?::\d{2,5})?(?:[/?#]\S*)?$/i.test(value)
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},
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/**
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* 验证日期格式
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*/
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date(value) {
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return that.optional(value) || !/Invalid|NaN/.test(new Date(value).toString())
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},
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/**
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* 验证ISO类型的日期格式
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*/
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dateISO(value) {
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return that.optional(value) || /^\d{4}[\/\-](0?[1-9]|1[012])[\/\-](0?[1-9]|[12][0-9]|3[01])$/.test(value)
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},
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/**
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* 验证十进制数字
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*/
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number(value) {
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return that.optional(value) || /^(?:-?\d+|-?\d{1,3}(?:,\d{3})+)?(?:\.\d+)?$/.test(value)
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},
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/**
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* 验证整数
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*/
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digits(value) {
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return that.optional(value) || /^\d+$/.test(value)
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},
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/**
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* 验证身份证号码
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*/
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idcard(value) {
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return that.optional(value) || /^[1-9]\d{5}[1-9]\d{3}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{3}([0-9]|X)$/.test(value)
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},
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/**
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* 验证两个输入框的内容是否相同
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*/
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equalTo(value, param) {
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return that.optional(value) || value === that.scope.detail.value[param]
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},
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/**
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* 验证是否包含某个值
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*/
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contains(value, param) {
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return that.optional(value) || value.indexOf(param) >= 0
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},
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/**
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* 验证最小长度
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*/
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minlength(value, param) {
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return that.optional(value) || value.length >= param
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},
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/**
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* 验证最大长度
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*/
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maxlength(value, param) {
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return that.optional(value) || value.length <= param
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},
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/**
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* 验证一个长度范围[min, max]
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*/
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rangelength(value, param) {
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return that.optional(value) || (value.length >= param[0] && value.length <= param[1])
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},
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/**
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* 验证最小值
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*/
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min(value, param) {
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return that.optional(value) || value >= param
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},
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/**
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* 验证最大值
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*/
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max(value, param) {
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return that.optional(value) || value <= param
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},
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/**
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* 验证一个值范围[min, max]
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*/
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range(value, param) {
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return that.optional(value) || (value >= param[0] && value <= param[1])
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},
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}
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}
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/**
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* 添加自定义验证方法
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* @param {String} name 方法名
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* @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
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* @param {String} message 提示信息
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*/
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addMethod(name, method, message) {
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this.methods[name] = method
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this.defaults.messages[name] = message !== undefined ? message : this.defaults.messages[name]
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}
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/**
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* 判断验证方法是否存在
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*/
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isValidMethod(value) {
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let methods = []
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for(let method in this.methods) {
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if (method && typeof this.methods[method] === 'function') {
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methods.push(method)
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}
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}
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return methods.indexOf(value) !== -1
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}
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/**
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* 格式化提示信息模板
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*/
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formatTpl(source, params) {
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const that = this
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if (arguments.length === 1) {
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return function() {
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let args = Array.from(arguments)
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args.unshift(source)
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return that.formatTpl.apply(this, args)
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}
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}
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if (params === undefined) {
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return source
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}
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if (arguments.length > 2 && params.constructor !== Array) {
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params = Array.from(arguments).slice(1)
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}
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if (params.constructor !== Array) {
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params = [ params ]
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}
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params.forEach(function(n, i) {
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source = source.replace(new RegExp("\\{" + i + "\\}", "g"), function() {
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return n
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})
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})
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return source
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}
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/**
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* 判断规则依赖是否存在
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*/
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depend(param) {
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switch(typeof param) {
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case 'boolean':
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param = param
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break
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case 'string':
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param = !!param.length
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break
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case 'function':
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param = param()
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default:
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param = !0
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}
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return param
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}
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/**
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* 判断输入值是否为空
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*/
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optional(value) {
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return !this.methods.required(value) && 'dependency-mismatch'
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}
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/**
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* 获取自定义字段的提示信息
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* @param {String} param 字段名
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* @param {Object} rule 规则
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*/
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customMessage(param, rule) {
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const params = this.messages[param]
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const isObject = typeof params === 'object'
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if (params && isObject) return params[rule.method]
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}
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/**
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* 获取某个指定字段的提示信息
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* @param {String} param 字段名
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* @param {Object} rule 规则
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*/
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defaultMessage(param, rule) {
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let message = this.customMessage(param, rule) || this.defaults.messages[rule.method]
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let type = typeof message
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if (type === 'undefined') {
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message = `Warning: No message defined for ${rule.method}.`
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} else if (type === 'function') {
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message = message.call(this, rule.parameters)
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}
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return message
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}
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/**
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* 缓存错误信息
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* @param {String} param 字段名
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* @param {Object} rule 规则
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* @param {String} value 元素的值
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*/
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formatTplAndAdd(param, rule, value) {
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let msg = this.defaultMessage(param, rule)
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this.errorList.push({
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param: param,
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msg: msg,
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value: value,
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})
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}
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/**
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* 验证某个指定字段的规则
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* @param {String} param 字段名
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* @param {Object} rules 规则
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* @param {Object} event 表单数据对象
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*/
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checkParam(param, rules, event) {
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// 缓存表单数据对象
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this.scope = event
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// 缓存字段对应的值
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const data = event.detail.value
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const value = data[param] || ''
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// 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
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for(let method in rules) {
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// 判断验证方法是否存在
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if (this.isValidMethod(method)) {
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// 缓存规则的属性及值
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const rule = {
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method: method,
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parameters: rules[method]
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}
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// 调用验证方法
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const result = this.methods[method](value, rule.parameters)
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// 若result返回值为dependency-mismatch，则说明该字段的值为空或非必填字段
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if (result === 'dependency-mismatch') {
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continue
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}
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this.setValue(param, method, result, value)
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// 判断是否通过验证，否则缓存错误信息，跳出循环
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if (!result) {
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this.formatTplAndAdd(param, rule, value)
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break
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}
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}
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}
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}
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/**
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* 设置字段的默认验证值
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* @param {String} param 字段名
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*/
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setView(param) {
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this.form[param] = {
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$name: param,
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$valid: true,
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$invalid: false,
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$error: {},
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$success: {},
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$viewValue: ``,
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}
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}
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/**
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|
* 设置字段的验证值
|
||
|
|
* @param {String} param 字段名
|
||
|
|
* @param {String} method 字段的方法
|
||
|
|
* @param {Boolean} result 是否通过验证
|
||
|
|
* @param {String} value 字段的值
|
||
|
|
*/
|
||
|
|
setValue(param, method, result, value) {
|
||
|
|
const params = this.form[param]
|
||
|
|
params.$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} event 表单数据对象
|
||
|
|
*/
|
||
|
|
checkForm(event) {
|
||
|
|
this.__initData()
|
||
|
|
|
||
|
|
for (let param in this.rules) {
|
||
|
|
this.setView(param)
|
||
|
|
this.checkParam(param, this.rules[param], event)
|
||
|
|
}
|
||
|
|
|
||
|
|
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
|