Gen Tool

Gen Tool 是一个没有依赖关系的二进制文件，可以用来从数据库生成结构

Install

go install gorm.io/gen/tools/gentool@latest

Usage

gentool -h

Usage of gentool:
 -c string
       config file path 
 -db string
       input mysql or postgres or sqlite or sqlserver. consult[https://gorm.io/docs/connecting_to_the_database.html] (default "mysql")
 -dsn string
       consult[https://gorm.io/docs/connecting_to_the_database.html]
 -fieldNullable
       generate with pointer when field is nullable
 -fieldWithIndexTag
       generate field with gorm index tag
 -fieldWithTypeTag
       generate field with gorm column type tag
 -modelPkgName string
       generated model code's package name
 -outFile string
       query code file name, default: gen.go
 -outPath string
       specify a directory for output (default "./dao/query")
 -tables string
       enter the required data table or leave it blank
 -onlyModel
       only generate models (without query file)
 -withUnitTest
       generate unit test for query code
 -fieldSignable
       detect integer field's unsigned type, adjust generated data type

c

配置文件名、默认值 “”、命令行选项的优先级高于配置文件。

db

指定Driver，默认值“mysql”，referer：https://gorm.io/docs/connecting_to_the_database.html

dsn

用于连接数据库的DSN reference: https://gorm.io/docs/connecting_to_the_database.html

fieldNullable

当字段允许空时用指针生成

fieldWithIndexTag

生成带有gorm index 标签的字段

fieldWithTypeTag

生成带有gorm type标签的字段

modelPkgName

生成模型代码包名称。

outFile

Genrated 查询代码文件名称，默认值：gen.go

outPath

指定输出目录(默认 “./dao/query”)

tables

指定要生成的表名称，默认所有表。

eg :

--tables="orders"       # generate from `orders`

--tables="orders,users" # generate from `orders` and `users`

--tables=""             # generate from all tables

Generate some tables code.

withUnitTest

生成单元测试，默认值 false, 选项: false / true

fieldSignable

Use signable datatype as field type, default value false, options: false / true

Example

gentool -dsn "user:pwd@tcp(localhost:3306)/database?charset=utf8mb4&parseTime=True&loc=Local" -tables "orders,doctor"

gentool -c "./gen.tool"

version: "0.1"
database:
  # consult[https://gorm.io/docs/connecting_to_the_database.html]"
  dsn : "username:password@tcp(address:port)/db?charset=utf8mb4&parseTime=true&loc=Local"
  # input mysql or postgres or sqlite or sqlserver. consult[https://gorm.io/docs/connecting_to_the_database.html]
  db  : "mysql"
  # enter the required data table or leave it blank.You can input : orders,users,goods
  tables  : "user"
  # specify a directory for output
  outPath :  "./dao/query"
  # query code file name, default: gen.go
  outFile :  ""
  # generate unit test for query code
  withUnitTest  : false
  # generated model code's package name
  modelPkgName  : ""
  # generate with pointer when field is nullable
  fieldNullable : false
  # generate field with gorm index tag
  fieldWithIndexTag : false
  # generate field with gorm column type tag
  fieldWithTypeTag  : false