校友会小程序开发笔记十五： 小程序前端数据校验体系的设计与实现
微信小程序前端开发框架没有自带的验证功能，虽然有表单的数据控制属性，但是略显简陋，且不成体系，尤其是结合后端很别扭，因此小女子开发校友录小程序的表单验证时候一般有两种方法，一是自己裸写验证规则，但是需要比较扎实的正则表达式基础，一种是自己封装Validate插件进行表单验证，基于以上原因，小女子自己封装了前端数据校验规则一套，并且与云开发后端数据校验的写法和规则一致（云开发后端数据校验体系参见上一篇笔记：））
校友录小程序集中校验路由
function check(data, rules, that) { let returnData = {}; for (let k in rules) { let arr = rules[k].split('|'); let desc = ''; // 校友录小程序数据项说明 for (let i = 0; i < arr.length; i++) { if (arr[i].indexOf('name=') > -1) { desc = arr[i].replace('name=', ''); break; } } // 校验 let formName = arr[0]; let val = data[formName]; if (val === undefined) val = ''; if (!Array.isArray(val)) val = String(val).trim(); // 前后去校友录小程序空格 returnData[k] = val; for (let i = 1; i < arr.length; i++) { let result = ''; let rules = arr[i].split(':'); // 校友录小程序空不校验 if (rules[0] != 'required' && val == '') continue; switch (rules[0]) { case 'required': result = checkRequired(val, desc); break; case 'array': result = checkArray(val, desc); break; case 'date': result = checkDate(val, desc); break; case 'time': result = checkTime(val, desc); break; case 'datetime': result = checkDatimeTime(val, desc); break; case 'min': result = checkMin(val, Number(rules[1]), desc); break; case 'max': result = checkMax(val, Number(rules[1]), desc); break; case 'len': result = checkLen(val, Number(rules[1]), desc); break; case 'in': result = checkIn(val, rules[1], desc); break; case 'email': result = checkEmail(val, desc); break; case 'mobile': result = checkMobile(val, desc); break; case 'int': result = checkInt(val, desc); break; case 'id': result = checkId(val, desc); break; case 'letter': result = checkLetter(val, desc); break; case 'letter_num': result = checkLetterNum(val, desc); break; } if (result) { wx.showModal({ title: '温馨提示', content: result, showCancel: false, success(res) { // 校友录小程序自动聚焦 if (that) that.setData({ [formName + 'Focus']: true }); } }); return false; } else { if (that) { // 删除校友录小程序原有的自动聚焦 if (helper.isDefined(that.data[formName + 'Focus'])) { that.setData({ //TODO delete? [formName + 'Focus']: false }); } } } } } return returnData; }
校友录小程序分项数据校验
function checkRequired(value, desc) { if (value == '') return desc + '不能为空'; } /** * 校验校友录小程序字符长度 * @param {*} value * @param {*} min * @param {*} max */ function isCheckLen(value, min, max) { //TODO 数字怎么处理 if (!helper.isDefined(value)) return false; if (typeof (value) != 'string') return false; if (value.length < min || value.length > max) return false; return true; } /** * 校验校友录小程序数字大小 * @param {*} value * @param {*} min * @param {*} max */ function isCheckM(value, min, max) { if (!helper.isDefined(value)) return false; if (typeof (value) == 'string' && /^[0-9]+$/.test(value)) value = Number(value); if (typeof (value) != 'number') return false; if (value < min || value > max) return false; return true; } function checkMin(value, len, desc) { if (value.length < len) return desc + '不能小于' + len + '位'; }; function checkMax(value, len, desc) { if (value.length > len) return desc + '不能大于' + len + '位'; }; function checkLen(value, len, desc) { if (value.length != len) return desc + '必须为' + len + '位'; }; function checkMobile(value, desc) { if (value == '') return ''; if (!/(^1[3|5|8][0-9]{9}$)/.test(value)) return desc + '格式不正确'; } function checkInt(value, desc) { if (value == '') return ''; if (!/^[0-9]+$/.test(value)) return desc + '必须为数字'; } function checkLetter(value, desc) { if (value == '') return; if (!/^[A-Za-z]+$/.test(value)) return desc + '必须为字母'; } function checkLetterNum(value, desc) { if (value == '') return; if (!/^\w+$/.test(value)) return desc + '必须为字母，数字和下划线'; } function checkId(value, desc, min = 1, max = 32) { if (value == '') return; if (value.length < min || value.length > max) return false; if (!/^\w+$/.test(value)) return desc + '必须为ID格式'; } function isCheckId(value, min = 1, max = 32) { if (!helper.isDefined(value)) return false; if (typeof (value) != 'string') return false; if (value.length < min || value.length > max) return false; if (!/^\w+$/.test(value)) return false; return true; } // 校友录小程序邮箱 function checkEmail(value, desc) { if (value == '') return; let hint = desc + '必须为邮箱格式'; let reg = /^[A-Za-z0-9+]+[A-Za-z0-9\.\_\-+]*@([A-Za-z0-9\-]+\.)+[A-Za-z0-9]+$/; if (!reg.test(value)) return hint; } // 校友录小程序短日期，形如 (2008-07-22) function checkDate(value, desc) { if (value == '') return; let hint = '请选择' + desc; if (value.length != 10) return hint; let r = value.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/); if (r == null) return hint; let d = new Date(r[1], r[3] - 1, r[4]); let chk = d.getFullYear() == r[1] && (d.getMonth() + 1) == r[3] && d.getDate() == r[4]; if (!chk) return hint; } // 校友录小程序短时间，形如 (13:04:06) function checkTime(value, desc) { if (value == '') return; let hint = desc + '必须为时间格式'; if (value.length != 8) return hint; let a = value.match(/^(\d{1,2})(:)?(\d{1,2})\2(\d{1,2})$/); if (a == null) return hint; if (a[1] > 24 || a[3] > 60 || a[4] > 60) return hint; } // 长时间，形如 (2008-07-22 13:04:06) function checkDatimeTime(value, desc) { if (value == '') return; let hint = desc + '必须为完整时间格式'; if (value.length != 19) return hint; var reg = /^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/; var r = value.match(reg); if (r == null) return hint; var d = new Date(r[1], r[3] - 1, r[4], r[5], r[6], r[7]); let chk = d.getFullYear() == r[1] && (d.getMonth() + 1) == r[3] && d.getDate() == r[4] && d.getHours() == r[5] && d.getMinutes() == r[6] && d.getSeconds() == r[7]; if (!chk) return hint; } function checkArray(value, desc) { if (value == '') return; if (!Array.isArray(value)) return desc + '填写错误'; } function checkIn(value, ref, desc) { if (value == '') return; let arr = ref.split(','); if (!arr.includes(value) && !arr.includes(value + '')) return desc + '填写错误'; } /** * 检查校友录小程序枚举类型 * @param {*} value * @param {*} ref 格式 1,2,3 */ function isCheckIn(value, ref) { if (!helper.isDefined(value)) return false; let arr = ref.split(','); if (!arr.includes(value) && !arr.includes(value + '')) return false; //字符，数字都支持 return true; }
校友录小程序应用示例
static getFormCheckRules() { return { name: 'formName|required|string|min:2|max:20|name=校友姓名', sex: 'formSex|required|int|len:1|in:1,2|name=性别', item: 'formItem|required|string|min:2|max:50|name=班级', birth: 'formBirth|required|date|name=生日', enroll: 'formEnroll|required|int|len:4|name=入学年份', grad: 'formGrad|required|int|len:4|name=毕业年份', city: 'formCity|required|string|min:2|max:50|name=所在城市', native: 'formNative|required|string|min:2|max:50|name=籍贯', edu: 'formEdu|required|string|min:2|max:50|name=学历', trade: 'formTrade|required|string|min:2|max:50|name=当前行业', workStatus: 'formWorkStatus|required|string|min:2|max:50|name=工作状态', company: 'formCompany|required|string|min:2|max:50|name=工作单位', companyDef: 'formCompanyDef|required|string|min:2|max:50|name=单位性质', companyDuty: 'formCompanyDuty|string|min:2|max:50|name=工作职位', openSet: 'formOpenSet|required|int|len:1|in:1,8|name=联系方式公开方式', mobile: 'formMobile|string|min:2|max:50|name=电话', wechat: 'formWechat|string|min:2|max:50|name=微信', email: 'formEmail|email|min:2|max:50|name=Email', qq: 'formQq|string|min:2|max:50|name=QQ', desc: 'formDesc|string|max:500|name=自我介绍', resource: 'formResource|string|max:500|name=需求与资源', } } }
项目代码GIT: https://github.com/ccliqi/CC-almni
