init.go
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package pg
import (
"context"
"fmt"
"gitlab.fjmaimaimai.com/allied-creation/allied-creation-user/pkg/infrastructure/pg/models"
"gitlab.fjmaimaimai.com/allied-creation/allied-creation-user/pkg/log"
"reflect"
"github.com/go-pg/pg/v10"
"github.com/go-pg/pg/v10/orm"
"gitlab.fjmaimaimai.com/allied-creation/allied-creation-user/pkg/constant"
//_ "gitlab.fjmaimaimai.com/allied-creation/allied-creation-user/pkg/infrastructure/pg/models"
"github.com/linmadan/egglib-go/persistent/pg/hooks"
)
var DB *pg.DB
func init() {
DB = pg.Connect(&pg.Options{
User: constant.POSTGRESQL_USER,
Password: constant.POSTGRESQL_PASSWORD,
Database: constant.POSTGRESQL_DB_NAME,
Addr: fmt.Sprintf("%s:%s", constant.POSTGRESQL_HOST, constant.POSTGRESQL_PORT),
})
if !constant.DISABLE_SQL_GENERATE_PRINT {
DB.AddQueryHook(hooks.SqlGeneratePrintHook{})
}
if !constant.DISABLE_CREATE_TABLE {
for _, model := range []interface{}{
(*models.Menu)(nil),
(*models.CustomizeMenu)(nil),
//(*models.User)(nil),
} {
err := DB.Model(model).CreateTable(&orm.CreateTableOptions{
Temp: false,
IfNotExists: true,
FKConstraints: true,
})
if err != nil {
panic(err)
}
if !constant.DISABLE_SQL_GENERATE_COMMENT {
AddComments(DB, model)
}
}
}
}
type SqlGeneratePrintHook struct{}
func (hook SqlGeneratePrintHook) BeforeQuery(c context.Context, q *pg.QueryEvent) (context.Context, error) {
return c, nil
}
func (hook SqlGeneratePrintHook) AfterQuery(c context.Context, q *pg.QueryEvent) error {
sqlStr, err := q.FormattedQuery()
if err != nil {
return err
}
log.Logger.Debug(string(sqlStr))
return nil
}
func AddComments(db *pg.DB, model interface{}) {
tableName := db.Model(model).TableModel().Table().SQLName
columnsMap := make(map[string]*orm.Field)
columns := db.Model(model).TableModel().Table().Fields
for _, item := range columns {
columnsMap[item.GoName] = item
}
valueOf := reflect.TypeOf(model)
for i := 0; i < valueOf.Elem().NumField(); i++ {
field := valueOf.Elem().Field(i)
comment := field.Tag.Get("comment")
if comment != "" {
if field.Name == "tableName" {
_, _ = db.Exec(fmt.Sprintf("COMMENT ON TABLE %s IS '%s';", tableName, comment))
} else {
if columnField, ok := columnsMap[field.Name]; ok {
_, _ = db.Exec(fmt.Sprintf("COMMENT ON COLUMN %s.%s IS '%s';", tableName, columnField.SQLName, comment))
}
}
}
}
}