915 lines
21 KiB
Markdown
915 lines
21 KiB
Markdown
# 功能点
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### 一个json(事务)同时支持新增、修改、删除、查询、别名
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https://github.com/Tencent/APIJSON/issues/468
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#### 使用说明
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json支持多种方式定义method
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第一种:
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"@post","@put","@delete","@head","@get","@gets","@head","@heads"
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"@post": ["Moment","Comment[]"] , 值为数组格式, 每个value = key
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需要保证每个key唯一, 唯一判断标准:
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key = Moment
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key= Moment[]
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会判断为相同key. 请通过别名区分, 别名格式: Sys_user_role:sur xxx表名:别名
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```
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{
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"@post": ["Moment","Comment:cArray[]","User:u"], // 分发到 POST 请求对应的解析处理
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"Moment": {
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// TODO 其它字段
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},
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"Comment:cArray[]": [
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{
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// TODO 其它字段
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}
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],
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"@get": ["User"], // 分发到 GET 请求对应的解析处理
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"User:u": {
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// TODO 其它字段
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},
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"Privacy": { // 按 URL 对应的默认方法处理
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// TODO 其它字段
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}
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}
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对于没有显式声明操作方法的，直接用 URL(/get, /post 等) 对应的默认操作方法
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```
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第二种:
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对象内定义"@method": "GET", value大写
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```
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{
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"sql@": {
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"@method": "GET",
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"with": true,
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"from": "Sys_role",
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"Sys_role": {
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"@column": "id",
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"role_name": "角色1"
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}
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},
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"Sys_user_role:sur[]": {
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"@method": "GET",
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"Sys_user_role": {
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"role_id{}@": "sql"
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}
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},
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"Sys_role_permission:srp[]": {
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"@method": "GET",
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"Sys_role_permission": {
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"role_id{}@": "sql"
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}
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},
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"@explain": true
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}
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```
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#### 解析顺序
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1) 对象内 "@method"
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2) "@post","@put","@delete"
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3) 对于没有显式声明操作方法的，直接用 URL(/get, /post 等) 对应的默认操作方法
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#### tag自动生成规则
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/**
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* { "xxx:aa":{ "@tag": "" }}
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* 生成规则:
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* 1、@tag存在,tag=@tag
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* 2、@tag不存在
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* 1)、存在别名
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* key=对象: tag=key去除别名
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* key=数组: tag=key去除别名 + []
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* 2)、不存在别名
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* tag=key
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* tag=key + []
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*/
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#### 建议
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1. 一个json包含不同操作方法, url method 使用 /post, /put
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2. value为JSONArray, 建议通过"@post" 方式配置, 如果没有配置,执行 3
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#### Request表 配置说明
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这只是我的配置仅供参考, 后续 测试会用到:
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```
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单条新增:
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POST User_address {"MUST":"addr","UPDATE": {"@role": "OWNER,ADMIN","childFunTest-()": "childFunTest(addr)"}, "REFUSE": "id"}
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批量新增:
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POST User_address[] {"User_address[]": [{"MUST":"addr","REFUSE": "id"}], "UPDATE": {"@role": "OWNER,ADMIN","childFunTest-()": "childFunTest(addr)"}}
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单条修改:
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PUT User_address {"User_address":{ "MUST":"id","REFUSE": "userId", "UPDATE": {"@role": "OWNER,ADMIN","childFunTest-()": "childFunTest(addr)"}} }
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批量修改:
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PUT User_address[] {"User_address[]": [{"MUST": "id","REFUSE": "userId"}], "UPDATE": {"@role": "OWNER,ADMIN"}}
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删除:
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DELETE User_address {"User_address":{ "MUST":"id{}","REFUSE": "!", "INSERT": {"@role": "OWNER,ADMIN"}} }
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```
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### 别名
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格式:
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Sys_user_role:sur xxx表名:别名
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Comment:cArray[]
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#### 实现思路
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当时参考了作者的示例: 注册流程. 看到绕过校验, 可以将多条json语句组装在一起, 批量执行. 于是就想如何实现一个json支持不同操作方法,并支持事物.
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通过分析源码, 熟悉了校验流程、json解析执行流程、json解析生成sql语句流程、一些兼容、校验规则等
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经过和作者讨论, 很感谢作者提供了相关解决方案和思路. 逐步理解了apijson的设计原理和框架结构.
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一个json(事务)同时支持新增、修改、删除、查询、别名, 实现思路如下:
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1、校验模块
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将json解析成对象、临时变量、子查询、别名、tag等
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并将method 添加到 json对象属性中.
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```
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"Sys_role": {
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"@method": "PUT",
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"id": "6aedce0d-2a29-4fbe-aeed-0ba935ca6b41",
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"id{}@": "sql",
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"role_code": "code-subrange-4",
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"role_name": "角色-subrange-4"
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}
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```
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2、对象解析
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用对象属性@method , 替换 Parser 的 method
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3、事物支持
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### 后续优化建议
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1、独立定义一个url method, 通过解析不同method执行不同流程
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和已有method区分开,避免歧义
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2、最外层新增传参 "transaction": true 来指定开启事务
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目前是url put、post来控制开启事物, 以及提交的时候 在 AbstractParser onCommit 判断 transactionIsolation (4 : 开启事物, 0: 非事物请求)
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详细实现请参见: https://github.com/Tencent/APIJSON/issues/468
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3、完善 "[@Explain](https://github.com/Explain)"
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如果没有执行计划,则返回sql语句. 能够在 reponse返回值中, 看到json中执行的每条sql,方便排错
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4、@version支持
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定义不同场景的 新增、修改、删除等执行规则. 请通过version版本区分
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Request表是通过tag、method、version来保证唯一.
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5、前置函数
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前置函数能够将json语句, 加入到 当前事物中.
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例如: 像数组一样,解析成每一条语句去执行.
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### mysql8 with-as表达式
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#### 前提条件
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1、mysql版本: 8+
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2、mysql-connector-java: 8.0.31
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版本支持 with-as即可
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3、druid: 1.2.15
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版本支持 with-as即可
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4、去掉 durid wall配置
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delete子查询, druid wall 拦截器报错 sql injection violation
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#### 测试案例
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#### 查询单个range ref引用
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```
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// 测试 mysql8 with as表达式
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// 用户表
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// 用户角色表
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// 角色表
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// 示例一 单个range ref引用
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{
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"sql@": {
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"@method": "GET",
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"with": true,
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"from": "Sys_role",
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"Sys_role": {
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"@column": "id",
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"role_name": "角色1"
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}
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},
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"Sys_user_role:sur[]": {
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"@method": "GET",
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"Sys_user_role": {
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"role_id{}@": "sql"
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}
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},
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"Sys_role_permission:srp[]": {
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"@method": "GET",
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"Sys_role_permission": {
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"role_id{}@": "sql"
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}
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},
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"@explain": true
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}
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// 第二种写法
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{
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"@get": ["sql@","Sys_user_role:sur[]","Sys_role_permission:srp[]"],
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"sql@": {
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"with": true,
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"from": "Sys_role",
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"Sys_role": {
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"@column": "id",
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"role_name": "角色1"
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}
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},
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"Sys_user_role:sur[]": {
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"Sys_user_role": {
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"role_id{}@": "sql"
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}
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},
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"Sys_role_permission:srp[]": {
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"Sys_role_permission": {
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"role_id{}@": "sql"
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}
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},
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"@explain": true
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}
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```
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mysql8执行结果:
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mysql5.7执行结果:
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#### 查询多个range ref引用
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```
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{
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"sql@": {
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"@method": "GET",
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"with": true,
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"from": "Sys_role",
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"Sys_role": {
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"@column": "id",
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"role_name": "角色1"
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}
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},
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"sql_user@": {
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"@method": "GET",
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"with": true,
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"from": "Sys_user",
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"Sys_user": {
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"@column": "id",
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"id": "f0894db2-6940-4d89-a5b2-4405d0ad0c8f"
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}
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},
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"Sys_user_role:sur[]": {
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"@method": "GET",
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"Sys_user_role": {
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"role_id{}@": "sql",
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"user_id{}@": "sql_user"
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}
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},
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"Sys_role_permission:srp[]": {
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"@method": "GET",
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"Sys_role_permission": {
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"role_id{}@": "sql"
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}
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},
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"@explain": true
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}
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```
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mysql8执行结果:
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mysql5.7执行结果:
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#### delete子查询
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```j s
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{
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"sql@": {
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"@method": "GET",
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"with": true,
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"from": "Sys_role_permission",
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"Sys_role_permission": {
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"@column": "id",
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"role_id{}": ["e7129d5f-b07e-4996-9965-9528e370a393"]
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}
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},
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"Sys_role_permission": {
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"@method": "DELETE",
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"id{}@": "sql"
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},
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"explan": true
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}
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```
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mysql8执行sql语句:
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```
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WITH `sql` AS (SELECT `id` FROM `housekeeping`.`Sys_role_permission` WHERE ( (`role_id` IN ('68877ee9-4cf4-4f32-86e6-16c505ca3b21')) ) ) DELETE FROM `housekeeping`.`Sys_role_permission` WHERE ( (`id` IN ( SELECT * FROM `sql`) ) )
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Plain Text
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```
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mysql5.7执行结果:
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```
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DELETE FROM `housekeeping`.`Sys_role_permission` WHERE ( (`id` IN ( SELECT * FROM (SELECT `id` FROM `housekeeping`.`Sys_role_permission` WHERE ( (`role_id` IN ('20d337bb-9886-455f-8dce-f1cadab0ec4f')) ) ) AS `sql`) ) )
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Plain Text
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```
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#### update子查询
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```
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{
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"sql@": {
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"@method": "GET",
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"with": true,
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"from": "Sys_role_permission",
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"Sys_role_permission": {
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"@column": "role_id",
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"id{}": ["6aedce0d-2a29-4fbe-aeed-0ba935ca6b41"]
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}
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},
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"Sys_role": {
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"@method": "PUT",
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"id": "6aedce0d-2a29-4fbe-aeed-0ba935ca6b41",
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"id{}@": "sql",
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"role_code": "code-subrange-4",
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"role_name": "角色-subrange-4"
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},
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"@explain": true
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}
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第二种写法
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{
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"@get": ["sql@"],
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"sql@": {
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"with": true,
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"from": "Sys_role_permission",
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"Sys_role_permission": {
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"@column": "role_id",
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"id{}": ["c95ef2d6-bf14-42b0-bb87-038cee8c78f1"]
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}
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},
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"@put": ["Sys_role"],
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"Sys_role": {
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"id": "0bb92d96-8ca6-469e-91e8-60308ce5b835",
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"id{}@": "sql",
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"role_code": "code-subrange-4",
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"role_name": "角色-subrange-4"
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},
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"@explain": true
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}
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```
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mysql8执行sql语句:
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mysql5.7执行结果:
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#### GETS 单条子查询
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会执行校验流程
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```
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http://localhost:8675/lowCodePlatform/forms/api/gets
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{
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"sql@": {
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"with": true,
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"from": "Sys_user_role",
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"Sys_user_role": {
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"@column": "role_id",
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"user_id": "4732209c-5785-4827-b532-5092f154fd94"
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}
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},
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"Sys_role[]": {
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"Sys_role": {
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"id{}@": "sql"
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},
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"page": 0,
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"count": 10,
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"query": 2
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},
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"tag":"Sys_role[]",
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"total@": "/Sys_role[]/total",
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"@explain": true
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}
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第二种写法
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{
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"@gets": ["sql@","Sys_role[]"],
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"sql@": {
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"with": true,
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"from": "Sys_user_role",
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"Sys_user_role": {
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"@column": "role_id",
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"user_id": "4732209c-5785-4827-b532-5092f154fd94"
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}
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},
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"Sys_role[]": {
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"Sys_role": {
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"id{}@": "sql"
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},
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"page": 0,
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"count": 10,
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"query": 2
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},
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"tag":"Sys_role[]",
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"total@": "/Sys_role[]/total",
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"@explain": true
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}
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```
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Access、Request需要配置鉴权信息:
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mysql8执行sql语句:
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mysql5.7执行结果:
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#### GETS多条子查询
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会执行校验流程
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```
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http://localhost:8675/lowCodePlatform/forms/api/gets
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{
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"sql@": {
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"@method": "GETS",
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"with": true,
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"from": "Sys_role",
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"Sys_role": {
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"@column": "id",
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"role_name": "超级管理员"
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}
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},
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"sql_user@": {
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"@method": "GETS",
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"with": true,
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"from": "Sys_user",
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"Sys_user": {
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"@column": "id",
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"id": "4732209c-5785-4827-b532-5092f154fd94"
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}
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},
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"Sys_user_role:sur[]": {
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"@method": "GETS",
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"Sys_user_role": {
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"role_id{}@": "sql",
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"user_id{}@": "sql_user"
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}
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},
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"Sys_role_permission:srp[]": {
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"@method": "GETS",
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"Sys_role_permission": {
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"role_id{}@": "sql"
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}
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},
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"@explain": true
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}
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```
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mysql8执行sql语句:
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mysql5.7执行结果:
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#### head 单个子查询
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普通获取数量, get/head不执行校验流程
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```
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http://localhost:8675/lowCodePlatform/forms/api/head
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|
{
|
|
"sql@": {
|
|
"@method": "GET",
|
|
"with": true,
|
|
"from": "Sys_user_role",
|
|
"Sys_user_role": {
|
|
"@column": "role_id",
|
|
"user_id": "4732209c-5785-4827-b532-5092f154fd94"
|
|
}
|
|
},
|
|
"Sys_role": {
|
|
"@method": "head",
|
|
"id{}@": "sql"
|
|
},
|
|
"@explain": true
|
|
}
|
|
|
|
```
|
|
|
|
mysql8执行sql语句:
|
|
|
|
|
|
|
|
mysql5.7执行结果:
|
|
|
|
|
|
|
|
#### head 多个子查询
|
|
|
|
普通获取数量, get/head不执行校验流程
|
|
|
|
```
|
|
{
|
|
"sql@": {
|
|
"@method": "GET",
|
|
"with": true,
|
|
"from": "Sys_role",
|
|
"Sys_role": {
|
|
"@column": "id",
|
|
"role_name": "超级管理员"
|
|
}
|
|
},
|
|
"sql_user@": {
|
|
"@method": "GET",
|
|
"with": true,
|
|
"from": "Sys_user",
|
|
"Sys_user": {
|
|
"@column": "id",
|
|
"id": "4732209c-5785-4827-b532-5092f154fd94"
|
|
}
|
|
},
|
|
"Sys_user_role": {
|
|
"@method": "HEAD",
|
|
"role_id{}@": "sql",
|
|
"user_id{}@": "sql_user"
|
|
},
|
|
"Sys_role_permission": {
|
|
"@method": "HEAD",
|
|
"role_id{}@": "sql"
|
|
},
|
|
"@explain": true
|
|
}
|
|
|
|
```
|
|
|
|
mysql8执行sql语句:
|
|
|
|
|
|
|
|
mysql5.7执行结果:
|
|
|
|
|
|
|
|
#### heads 单个子查询
|
|
|
|
普通获取数量
|
|
|
|
会执行校验流程, Access、Request需要配置鉴权信息:
|
|
|
|
|
|
```
|
|
http://localhost:8675/lowCodePlatform/forms/api/heads
|
|
|
|
{
|
|
"sql@": {
|
|
"@method": "GET",
|
|
"with": true,
|
|
"from": "Sys_user_role",
|
|
"Sys_user_role": {
|
|
"@column": "role_id",
|
|
"user_id": "4732209c-5785-4827-b532-5092f154fd94"
|
|
}
|
|
},
|
|
"Sys_role": {
|
|
"@method": "heads",
|
|
"id{}@": "sql"
|
|
},
|
|
"@explain": true
|
|
}
|
|
|
|
```
|
|
|
|
mysql8执行sql语句:
|
|
|
|
|
|
|
|
mysql5.7执行结果:
|
|
|
|
|
|
|
|
#### heads 多个子查询
|
|
|
|
会执行校验流程, Access、Request需要配置鉴权信息:
|
|
|
|
|
|
|
|
普通获取数量
|
|
|
|
```
|
|
{
|
|
"sql@": {
|
|
"@method": "GET",
|
|
"with": true,
|
|
"from": "Sys_role",
|
|
"Sys_role": {
|
|
"@column": "id",
|
|
"role_name": "超级管理员"
|
|
}
|
|
},
|
|
"sql_user@": {
|
|
"@method": "GET",
|
|
"with": true,
|
|
"from": "Sys_user",
|
|
"Sys_user": {
|
|
"@column": "id",
|
|
"id": "4732209c-5785-4827-b532-5092f154fd94"
|
|
}
|
|
},
|
|
"Sys_user_role": {
|
|
"@method": "HEADS",
|
|
"role_id{}@": "sql",
|
|
"user_id{}@": "sql_user"
|
|
},
|
|
"Sys_role_permission": {
|
|
"@method": "HEADS",
|
|
"role_id{}@": "sql"
|
|
},
|
|
"@explain": true
|
|
}
|
|
|
|
```
|
|
|
|
mysql8执行sql语句:
|
|
|
|
|
|
|
|
mysql5.7执行结果:
|
|
|
|
|
|
|
|
### delete、put 支持子查询
|
|
|
|
https://github.com/Tencent/APIJSON/issues/471
|
|
|
|
静态变量做全局处理，特殊接口用 Operation.MUST id/id{}/id{}@ 做自定义处理。
|
|
|
|
之所以默认必传，是因为安全意识不够、编码粗心大意的人太多了，所以要有一个底线保障，尽可能避免安全隐患。
|
|
|
|
1、全局配置 为 PUT, DELETE 强制要求必须有 id/id{}/id{}@ 条件
|
|
|
|
AbstractVerifier.IS_UPDATE_MUST_HAVE_ID_CONDITION = true; // true: 必须有
|
|
|
|
|
|
|
|
2、细粒度控制
|
|
|
|
|
|
|
|
#### 使用说明
|
|
|
|
```
|
|
// 条件删除
|
|
{
|
|
"User:del": {
|
|
"username": "test3"
|
|
},
|
|
"tag": "User",
|
|
"explain": true
|
|
}
|
|
|
|
// 引用id{}@删除
|
|
{
|
|
"sql@": {
|
|
"@method": "GET",
|
|
"with": true,
|
|
"from": "Sys_user_role",
|
|
"Sys_user_role": {
|
|
"@column": "user_id",
|
|
"role_id{}": ["023e1880-c0d4-4e7c-ae6c-7703199c2daf"]
|
|
}
|
|
},
|
|
"Sys_user:aa": {
|
|
"@method": "DELETE",
|
|
"id{}@": "sql"
|
|
},
|
|
"explan": true
|
|
}
|
|
// 子查询条件删除
|
|
http://localhost:8675/lowCodePlatform/forms/api/delete
|
|
{
|
|
"sql@": {
|
|
"@method": "GET",
|
|
"with": true,
|
|
"from": "User",
|
|
"User": {
|
|
"@column": "username",
|
|
"username": "test-3"
|
|
}
|
|
},
|
|
"User": {
|
|
"username{}@": "sql"
|
|
},
|
|
"explan": true
|
|
}
|
|
|
|
第二种写法:
|
|
{
|
|
"@get": ["sql@"],
|
|
"sql@": {
|
|
"with": true,
|
|
"from": "User",
|
|
"User": {
|
|
"@column": "username",
|
|
"username": "test4"
|
|
}
|
|
},
|
|
"User": {
|
|
"username{}@": "sql"
|
|
},
|
|
"explan": true
|
|
}
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
开启id删除, 删除失败:
|
|
|
|
```
|
|
{
|
|
"@get": ["sql@"],
|
|
"sql@": {
|
|
"with": true,
|
|
"from": "User",
|
|
"User": {
|
|
"@column": "username",
|
|
"username": "test4"
|
|
}
|
|
},
|
|
"User": {
|
|
"username{}@": "sql"
|
|
},
|
|
"explan": true
|
|
}
|
|
```
|
|
|
|
|
|
|
|
开启id删除、id引用 删除成功
|
|
|
|
```
|
|
{
|
|
"sql@": {
|
|
"@method": "GET",
|
|
"with": true,
|
|
"from": "Sys_user_role",
|
|
"Sys_user_role": {
|
|
"@column": "user_id",
|
|
"role_id{}": ["0bb92d96-8ca6-469e-91e8-60308ce5b835"]
|
|
}
|
|
},
|
|
"Sys_user:aa": {
|
|
"@method": "DELETE",
|
|
"id{}@": "sql"
|
|
},
|
|
"explan": true
|
|
}
|
|
```
|
|
|
|
|
|
PUT 子查询 修改
|
|
|
|
```
|
|
{
|
|
"sql@": {
|
|
"@method": "GET",
|
|
"with": true,
|
|
"from": "Sys_role_permission",
|
|
"Sys_role_permission": {
|
|
"@column": "role_id",
|
|
"id{}": ["ba2634f8-0bdc-4b50-9c5e-47786b1536ef"]
|
|
}
|
|
},
|
|
"Sys_role": {
|
|
"@method": "PUT",
|
|
"id{}@": "sql",
|
|
"role_code": "code-subrange-5",
|
|
"role_name": "角色-subrange-5"
|
|
},
|
|
"@explain": true
|
|
}
|
|
```
|
|
|
|
|
|
|
|
#### bug修复
|
|
|
|
删除操作 主表 和 子查询 是同一张表
|
|
mysql8以下 非with-as表达式 会报错:
|
|
"msg": "You can't specify target table 'User' for update in FROM clause",
|
|
|
|
需要调整sql语句,将子查询包一层(select * from (子查询) as xxx)
|
|
DELETE FROM `housekeeping`.`User`
|
|
WHERE ( (`username` IN (SELECT * FROM (SELECT `username` FROM `housekeeping`.`User` WHERE ( (`username` = 'test1') )) as a) ) )
|
|
|
|
|
|
|
|
|
|
|
|
|
|
### must、refuses判断、delete、PUT支持 ref
|
|
|
|
```
|
|
{
|
|
"sql@": {
|
|
"@method": "GET",
|
|
"with": true,
|
|
"from": "Sys_role_permission",
|
|
"Sys_role_permission": {
|
|
"@column": "id",
|
|
"role_id{}": ["94f79f0b-331b-4cc5-bfc0-ebfc47d00f13"]
|
|
}
|
|
},
|
|
"Sys_role_permission": {
|
|
"@method": "DELETE",
|
|
"id{}@": "sql"
|
|
},
|
|
"explan": true
|
|
}
|
|
```
|
|
|
|
|