72 lines
1.4 KiB
Go
72 lines
1.4 KiB
Go
package database
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import (
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"database/sql"
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"log"
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"net/url"
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"os"
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// Load mysql driver
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_ "github.com/go-sql-driver/mysql"
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"github.com/golang-migrate/migrate"
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"github.com/golang-migrate/migrate/database/mysql"
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// Migrate from file
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_ "github.com/golang-migrate/migrate/source/file"
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)
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// SetupDatabase connects to the database using environment variables
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func SetupDatabase() *sql.DB {
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address, err := url.Parse(os.Getenv("MYSQL_URL"))
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if err != nil {
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log.Fatalf("Could not parse mysql url: %s\n", err)
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}
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queryValues := address.Query()
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queryValues.Add("multiStatements", "true")
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address.RawQuery = queryValues.Encode()
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log.Printf("Connecting to database: %s", address)
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db, err := sql.Open("mysql", address.String())
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if err != nil {
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log.Fatalf("Could not connect to database: %s\n", err.Error())
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}
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if err := db.Ping(); err != nil {
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log.Fatalf("Could not connect to database: %s\n", err.Error())
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}
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return db
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}
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func MigrateDatabase(db *sql.DB) error {
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driver, err := mysql.WithInstance(db, &mysql.Config{})
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if err != nil {
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return err
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}
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m, err := migrate.NewWithDatabaseInstance(
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"file://database/migrations",
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"mysql",
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driver,
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)
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if err != nil {
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return err
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}
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if err := m.Up(); err != nil {
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if err.Error() == "no change" {
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log.Println("Database is up to date")
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} else {
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return err
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}
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} else {
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log.Println("Database migrated")
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}
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return nil
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}
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