/
sys_auto_code_mysql.go
55 lines (46 loc) · 1.94 KB
/
sys_auto_code_mysql.go
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package system
import (
"github.com/test-instructor/yangfan/server/global"
"github.com/test-instructor/yangfan/server/model/system/response"
)
var AutoCodeMysql = new(autoCodeMysql)
type autoCodeMysql struct{}
// GetDB 获取数据库的所有数据库名
// Author [SliverHorn](https://github.com/SliverHorn)
func (s *autoCodeMysql) GetDB() (data []response.Db, err error) {
var entities []response.Db
sql := "SELECT SCHEMA_NAME AS `database` FROM INFORMATION_SCHEMA.SCHEMATA;"
err = global.GVA_DB.Raw(sql).Scan(&entities).Error
return entities, err
}
// GetTables 获取数据库的所有表名
// Author [SliverHorn](https://github.com/SliverHorn)
func (s *autoCodeMysql) GetTables(dbName string) (data []response.Table, err error) {
var entities []response.Table
sql := `select table_name as table_name from information_schema.tables where table_schema = ?`
err = global.GVA_DB.Raw(sql, dbName).Scan(&entities).Error
return entities, err
}
// GetColumn 获取指定数据库和指定数据表的所有字段名,类型值等
// Author [SliverHorn](https://github.com/SliverHorn)
func (s *autoCodeMysql) GetColumn(tableName string, dbName string) (data []response.Column, err error) {
var entities []response.Column
sql := `
SELECT COLUMN_NAME column_name,
DATA_TYPE data_type,
CASE DATA_TYPE
WHEN 'longtext' THEN c.CHARACTER_MAXIMUM_LENGTH
WHEN 'varchar' THEN c.CHARACTER_MAXIMUM_LENGTH
WHEN 'double' THEN CONCAT_WS(',', c.NUMERIC_PRECISION, c.NUMERIC_SCALE)
WHEN 'decimal' THEN CONCAT_WS(',', c.NUMERIC_PRECISION, c.NUMERIC_SCALE)
WHEN 'int' THEN c.NUMERIC_PRECISION
WHEN 'bigint' THEN c.NUMERIC_PRECISION
ELSE '' END AS data_type_long,
COLUMN_COMMENT column_comment
FROM INFORMATION_SCHEMA.COLUMNS c
WHERE table_name = ?
AND table_schema = ?
`
err = global.GVA_DB.Raw(sql, tableName, dbName).Scan(&entities).Error
return entities, err
}