owl-blogs/infra/binary_file_repository.go

102 lines
2.6 KiB
Go

package infra
import (
"fmt"
"owl-blogs/app/repository"
"owl-blogs/domain/model"
"strings"
"github.com/jmoiron/sqlx"
)
type sqlBinaryFile struct {
Id string `db:"id"`
Name string `db:"name"`
EntryId *string `db:"entry_id"`
Data []byte `db:"data"`
}
type DefaultBinaryFileRepo struct {
db *sqlx.DB
}
// NewBinaryFileRepo creates a new binary file repository
// It creates the table if not exists
func NewBinaryFileRepo(db Database) repository.BinaryRepository {
sqlxdb := db.Get()
// Create table if not exists
sqlxdb.MustExec(`
CREATE TABLE IF NOT EXISTS binary_files (
id VARCHAR(255) PRIMARY KEY,
name VARCHAR(255) NOT NULL,
entry_id VARCHAR(255),
data BLOB NOT NULL
);
`)
return &DefaultBinaryFileRepo{db: sqlxdb}
}
// Create implements repository.BinaryRepository
func (repo *DefaultBinaryFileRepo) Create(name string, data []byte, entry model.Entry) (*model.BinaryFile, error) {
parts := strings.Split(name, ".")
fileName := strings.Join(parts[:len(parts)-1], ".")
fileExt := parts[len(parts)-1]
id := fileName + "." + fileExt
// check if id exists
var count int
err := repo.db.Get(&count, "SELECT COUNT(*) FROM binary_files WHERE id = ?", id)
if err != nil {
return nil, err
}
if count > 0 {
counter := 1
for {
id = fmt.Sprintf("%s-%d.%s", fileName, counter, fileExt)
err := repo.db.Get(&count, "SELECT COUNT(*) FROM binary_files WHERE id = ?", id)
if err != nil {
return nil, err
}
if count == 0 {
break
}
counter++
}
}
var entryId *string
if entry != nil {
eId := entry.ID()
entryId = &eId
}
_, err = repo.db.Exec("INSERT INTO binary_files (id, name, entry_id, data) VALUES (?, ?, ?, ?)", id, name, entryId, data)
if err != nil {
return nil, err
}
return &model.BinaryFile{Id: id, Name: name, Data: data}, nil
}
// FindById implements repository.BinaryRepository
func (repo *DefaultBinaryFileRepo) FindById(id string) (*model.BinaryFile, error) {
var sqlFile sqlBinaryFile
err := repo.db.Get(&sqlFile, "SELECT * FROM binary_files WHERE id = ?", id)
if err != nil {
return nil, err
}
return &model.BinaryFile{Id: sqlFile.Id, Name: sqlFile.Name, Data: sqlFile.Data}, nil
}
// FindByNameForEntry implements repository.BinaryRepository
func (repo *DefaultBinaryFileRepo) FindByNameForEntry(name string, entry model.Entry) (*model.BinaryFile, error) {
var sqlFile sqlBinaryFile
err := repo.db.Get(&sqlFile, "SELECT * FROM binary_files WHERE name = ? AND entry_id = ?", name, entry.ID())
if err != nil {
return nil, err
}
return &model.BinaryFile{Id: sqlFile.Id, Name: sqlFile.Name, Data: sqlFile.Data}, nil
}