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关于小程序云开发:校友会小程序开发笔记十四-小程序云开发后端数据校验体系的设计与实现

jiezi

微信小程序云开发后端开发框架没有自带的验证性能，因而开发校友录小程序的表单验证时候个别有两种办法，一是本人裸写验证规定，然而须要比拟扎实的正则表达式根底，一种是本人封装 Validate 插件进行表单验证，基于以上起因，小女子本人封装了云开发后端数据校验规定一套，并且与前端数据校验的写法和规定统一（前端数据校验体系下一篇笔记介绍：））

对立校验路由入口 

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阐明
        for (let i = 0; i < arr.length; i++) {if (arr[i].indexOf('name=') > -1) {desc = arr[i].replace('name=', '');
                break;
            }
        }

        // 校友录小程序校验 
        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: '舒适提醒',
                    content: result,
                    showCancel: false,
                    success(res) {
                        // 校友录小程序主动聚焦
                        if (that)
                            that.setData({[formName + 'Focus']: true
                            });
                    }
                });
                return false;
            } else {if (that) {
                    // 删除原有的校友录小程序主动聚焦
                    if (helper.isDefined(that.data[formName + 'Focus'])) {
                        that.setData({ //TODO delete?
                            [formName + 'Focus']: false
                        });
                    }
                }
            }

        }
    }
    return returnData;
}

分项数据校验实现 

/**
 * 校验校友录小程序字符长度
 * @param {*} value 
 * @param {*} min 
 * @param {*} max 
 */
function isCheckLen(value, min, max) { //TODO 数字怎么解决
    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 + '格局不正确';
}

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 格局';
}

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 + '必须为邮箱格局';
    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 = '请抉择' + 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 + '必须为工夫格局';
    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;
}

// 校友录小程序长时间，形如 (2008-07-22 13:04:06)
function checkDatimeTime(value, desc) {if (value == '') return;
    let hint = desc + '必须为残缺工夫格局';
    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 + '填写谬误';
}

function checkIn(value, ref, desc) {if (value == '') return;
    let arr = ref.split(',');
    if (!arr.includes(value) && !arr.includes(value + ''))
        return desc + '填写谬误';
}

/**
 * 查看校友录小程序枚举类型 
 * @param {*} value 
 * @param {*} ref 格局 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，数字都反对
    return true;
}

在校友录小程序中的应用示范 

// 校友录小程序数据校验
        let rules = {
            search: 'string|min:1|max:30|name= 搜寻条件',
            sortType: 'string|name= 搜寻类型',
            sortVal: 'name= 搜寻类型值',
            orderBy: 'object|name= 排序',
            whereEx: 'object|name= 附加查问条件',
            page: 'required|int|default=1',
            size: 'int',
            isTotal: 'bool',
            oldTotal: 'int',
        };

        // 获得校友录小程序数据
        let input = this.validateData(rules);

        let service = new GroupService();
        let result = await service.getMyGroupList(this._userId, input);

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