Thomas Peetz
70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
package schema
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import (
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"fmt"
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"log"
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"log/slog"
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"time"
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"github.com/spf13/viper"
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"gorm.io/driver/postgres"
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"gorm.io/gorm"
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"gorm.io/gorm/logger"
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)
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var DB *gorm.DB
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func Connect() {
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// Build the connection string from environment variables
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// This keeps sensitive credentials out of the codebase
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dsn := fmt.Sprintf(
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"host=%s user=%s password=%s dbname=%s port=%d sslmode=disable",
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viper.GetString("db.host"),
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viper.GetString("db.user"),
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viper.GetString("db.password"),
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viper.GetString("db.name"),
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viper.GetInt("db.port"),
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)
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// Configure GORM with custom settings
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// The logger helps with debugging SQL queries during development
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db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{
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Logger: logger.Default.LogMode(logger.Info),
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})
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if err != nil {
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log.Fatal("Failed to connect to database:", err)
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}
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// Get the underlying SQL database connection for pool configuration
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sqlDB, err := db.DB()
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if err != nil {
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log.Fatal("Failed to get database instance:", err)
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}
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// Configure connection pool settings
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// MaxIdleConns: number of connections kept open when idle
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sqlDB.SetMaxIdleConns(10)
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// MaxOpenConns: maximum total connections to the database
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sqlDB.SetMaxOpenConns(100)
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// ConnMaxLifetime: how long a connection can be reused
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sqlDB.SetConnMaxLifetime(time.Hour)
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DB = db
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slog.Info("Database connected successfully")
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}
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func RunMigrations() {
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// AutoMigrate creates tables, missing columns, and missing indexes
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// It will NOT delete unused columns to protect your data
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err := DB.AutoMigrate(
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&MediaActor{},
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&MediaFile{},
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&MediaActorFile{},
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)
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if err != nil {
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log.Fatal("Migration failed:", err)
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}
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slog.Info("Database migration completed")
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}
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