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85 lines
1.3 KiB
Go
85 lines
1.3 KiB
Go
package db
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import (
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"fmt"
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"log"
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"os"
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_ "github.com/go-sql-driver/mysql"
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"github.com/jmoiron/sqlx"
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"github.com/mediocregopher/radix/v3"
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)
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const (
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//DBName = "bit4sat.sqlite"
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DBName = "bit4sat"
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DBHostEnv = "DB_HOST"
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DBUserEnv = "DB_USER"
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DBPassEnv = "DB_PASS"
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//DBPragma = ` PRAGMA foreign_keys = ON; `
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)
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var (
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DB *Database
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)
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type Database struct {
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Sql *sqlx.DB
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Redis *radix.Pool
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}
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func (d *Database) Open() error {
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var err error
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// Get env vars
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host, set := os.LookupEnv(DBHostEnv)
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if !set {
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log.Fatal("undefined DB_HOST env")
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}
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user, set := os.LookupEnv(DBUserEnv)
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if !set {
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log.Fatal("undefined DB_USER env")
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}
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pass, set := os.LookupEnv(DBPassEnv)
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if !set {
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log.Fatal("undefined DB_PASS env")
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}
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dsn := fmt.Sprintf("%s:%s@tcp(%s)/%s", user, pass, host, DBName)
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log.Printf("Opening SQL at %s\n", dsn)
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d.Sql = sqlx.MustConnect("mysql", dsn)
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// Execute Pragmas
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//d.Sql.MustExec(DBPragma)
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// Opend redis
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d.Redis, err = radix.NewPool("tcp", "redis:6379", 10)
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if err != nil {
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log.Fatal(err)
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}
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return nil
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}
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func RollbackTx(tx *sqlx.Tx, callback func()) {
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log.Println("Rolling back transactions !")
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err := tx.Rollback()
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if err != nil {
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log.Fatal(err)
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}
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if callback != nil {
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callback()
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}
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}
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func init() {
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DB = &Database{}
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DB.Open()
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}
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