42 lines
741 B
Go
42 lines
741 B
Go
package orm
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import (
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"fmt"
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"log/slog"
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"proxy-server/server/pkg/env"
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"github.com/pkg/errors"
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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 Init() {
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dsn := fmt.Sprintf(
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"host=%s port=%d user=%s password=%s dbname=%s sslmode=disable TimeZone=%s",
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env.DbHost, env.DbPort, env.DbUsername, env.DbPassword, env.DbDatabase, env.DbTimezone,
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)
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db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{
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Logger: logger.Default,
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})
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if err != nil {
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panic(err)
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}
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DB = db
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}
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func MaySingle[T any](results []T) (*T, error) {
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rsLen := len(results)
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if rsLen == 0 {
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return nil, errors.New("记录为空")
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}
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if rsLen > 1 {
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slog.Warn("记录不唯一", "ids")
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}
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return &results[0], nil
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}
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