owl-blogs/infra/config_repository.go

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package infra
import (
"encoding/json"
"owl-blogs/app/repository"
"github.com/jmoiron/sqlx"
)
type DefaultConfigRepo struct {
db *sqlx.DB
}
func NewConfigRepo(db Database) repository.ConfigRepository {
sqlxdb := db.Get()
sqlxdb.MustExec(`
CREATE TABLE IF NOT EXISTS site_config (
name TEXT PRIMARY KEY,
config TEXT
);
`)
return &DefaultConfigRepo{
db: sqlxdb,
}
}
// Get implements repository.SiteConfigRepository.
func (r *DefaultConfigRepo) Get(name string, result interface{}) error {
data := []byte{}
err := r.db.Get(&data, "SELECT config FROM site_config WHERE name = ?", name)
if err != nil {
if err.Error() == "sql: no rows in result set" {
return nil
}
return err
}
if len(data) == 0 {
return nil
}
return json.Unmarshal(data, result)
}
// Update implements repository.SiteConfigRepository.
func (r *DefaultConfigRepo) Update(name string, siteConfig interface{}) error {
jsonData, err := json.Marshal(siteConfig)
if err != nil {
return err
}
res, err := r.db.Exec("UPDATE site_config SET config = ? WHERE name = ?", jsonData, name)
if err != nil {
return err
}
rows, err := res.RowsAffected()
if rows == 0 {
_, err = r.db.Exec("INSERT INTO site_config (name, config) VALUES (?, ?)", name, jsonData)
}
return err
}