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https://github.com/vnaki/gt
Generate create table sql by struct, power!
https://github.com/vnaki/gt
golang mysql sql sqlite3 struct table
Last synced: 19 days ago
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Generate create table sql by struct, power!
- Host: GitHub
- URL: https://github.com/vnaki/gt
- Owner: vnaki
- License: mit
- Created: 2023-01-13T06:22:23.000Z (almost 2 years ago)
- Default Branch: master
- Last Pushed: 2023-02-12T06:22:16.000Z (almost 2 years ago)
- Last Synced: 2024-11-05T15:25:31.247Z (2 months ago)
- Topics: golang, mysql, sql, sqlite3, struct, table
- Language: Go
- Homepage: https://gitee.com/vnaki/gt
- Size: 57.6 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
#### Usage
see [example](https://github.com/Vnaki/gt/tree/master/example)
```go
package main
import (
"fmt"
"github.com/vnaki/gt"
"time"
)
type Model struct {
Id uint32 `db:"id,omitempty" gen:"length:10,pk,ai,unsigned"`
CreatedAt time.Time `db:"created_at" gen:"notnull"`
UpdatedAt *time.Time `db:"updated_at"`
DeletedAt *time.Time `db:"deleted_at"`
}
type UserModel struct {
Model
Username string `db:"username" gen:"length:10,comment:'用户名称',notnull"`
Content string `db:"content" gen:"type:text"`
Email string `db:"email" gen:"length:100,notnull"`
Phone string `db:"phone" gen:"type:char,length:11,notnull"`
Score float32 `db:"score" gen:"length:10,decimal:2,default:1,notnull,unsigned"`
Money float64 `db:"money" gen:"length:10,decimal:2,default:1,notnull,unsigned"`
Status uint8 `db:"status" gen:"length:2,notnull,unsigned"`
}
func main() {
b := gt.New()
b.SetSchema("student")
b.SetWrap(true)
b.SetDrop(false)
b.SetMode(gt.MYSQL)
b.SetSuffix("Model")
ss, err := b.Model(UserModel{})
if err != nil {
panic(err)
} else {
for _, s := range ss {
fmt.Println(s)
}
}
}
```
result output
```sql
-- sqlite
CREATE TABLE student.user(
'id' integer PRIMARY KEY AUTOINCREMENT,
'created_at' datetime NOT NULL,
'updated_at' datetime,
'deleted_at' datetime,
'username' varchar(10) NOT NULL, -- '用户名称'
'content' text,
'email' varchar(100) NOT NULL,
'phone' char(11) NOT NULL,
'score' float(10,2) NOT NULL DEFAULT 1,
'money' double(10,2) NOT NULL DEFAULT 1,
'status' tinyint(2) NOT NULL
);
-- mysql
CREATE TABLE student.user(
`id` int(10) UNSIGNED PRIMARY KEY AUTO_INCREMENT,
`created_at` datetime NOT NULL,
`updated_at` datetime,
`deleted_at` datetime,
`username` varchar(10) NOT NULL COMMENT '用户名称',
`content` text,
`email` varchar(100) NOT NULL,
`phone` char(11) NOT NULL,
`score` float(10,2) UNSIGNED NOT NULL DEFAULT 1,
`money` double(10,2) UNSIGNED NOT NULL DEFAULT 1,
`status` tinyint(2) UNSIGNED NOT NULL
) ENGINE=InnoDB AUTO_INCREMENT=0 DEFAULT CHARSET=utf8mb4;
```
#### Mode
- MYSQL
- SQLITE
#### Tag `db`
Corresponding data table column name, `Id` to `id`, `Content` to `content`
```go
type People struct {
Id int32 `db:"id,omitempty" gen:"pk,ai"`
Content string `db:"content" gen:"type:text"`
}
```
#### Tag `gen`
| 属性 | 默认值 | 说明 |
| --- | --- | --- |
| type | | 原生sql数据类型:char,text,mediumint,timestamp,datetime 等 |
| length | | 数据长度 |
| decimal | 2 | 浮点类型精度 |
| default | | 默认值 |
| pk | | 主键 |
| ai | | 自增 |
| comment | | 注释 |
| unsigned | | 无符号 |
| notnull | | not null |
#### Integer Data Type
| 数据库数据类型 | 范围 | 无符号范围 | 数据类型 |
| --- | --- | --- | --- |
| TINYINT | -128〜127 | 0 〜255 | int8/uint8 |
| SMALLINT | -32768〜32767 | 0〜65535 | int16/uint16|
| INT (INTEGER) | -2147483648〜2147483647 | 0〜4294967295 | int32/uint32|
| BIGINT | -9223372036854775808〜9223372036854775807 | 0〜18446744073709551615 | int64 int / uint64 uint|
#### String Data Type
```
string -> varchar
```