ld
e2af482cc9
- Implement FileHandler with CRUD operations for files/directories - Add FileService with business logic and SHA-256 hashing - Create LocalStorage backend for filesystem persistence - Add database repository with pagination and name uniqueness constraints - Configure max upload size in storage settings - Include comprehensive tests for all layers
124 lines
3.8 KiB
Go
124 lines
3.8 KiB
Go
package repository
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import (
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"context"
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"errors"
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"gorm.io/gorm"
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"github.com/dhao2001/mygo/internal/model"
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)
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// FileRepository provides access to file records.
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type FileRepository interface {
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Create(ctx context.Context, file *model.File) error
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FindByID(ctx context.Context, id string) (*model.File, error)
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FindByUserID(ctx context.Context, userID string, offset, limit int) ([]model.File, int64, error)
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FindByParentID(ctx context.Context, userID string, parentID *string) ([]model.File, error)
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FindByParentIDPaginated(ctx context.Context, userID string, parentID *string, offset, limit int) ([]model.File, int64, error)
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FindByNameAndParent(ctx context.Context, userID string, parentID *string, name string) (*model.File, error)
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Update(ctx context.Context, file *model.File) error
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Delete(ctx context.Context, id string) error
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}
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type fileRepository struct {
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db *gorm.DB
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}
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// NewFileRepository creates a FileRepository backed by GORM.
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func NewFileRepository(db *gorm.DB) FileRepository {
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return &fileRepository{db: db}
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}
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func (r *fileRepository) Create(ctx context.Context, file *model.File) error {
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result := r.db.WithContext(ctx).Create(file)
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if result.Error != nil {
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if isDuplicateKeyError(result.Error) {
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return model.ErrDuplicate
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}
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return result.Error
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}
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return nil
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}
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func (r *fileRepository) FindByID(ctx context.Context, id string) (*model.File, error) {
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var file model.File
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result := r.db.WithContext(ctx).First(&file, "id = ?", id)
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if errors.Is(result.Error, gorm.ErrRecordNotFound) {
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return nil, model.ErrNotFound
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}
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if result.Error != nil {
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return nil, result.Error
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}
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return &file, nil
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}
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func (r *fileRepository) FindByUserID(ctx context.Context, userID string, offset, limit int) ([]model.File, int64, error) {
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var files []model.File
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var total int64
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if err := r.db.WithContext(ctx).Model(&model.File{}).Where("user_id = ?", userID).Count(&total).Error; err != nil {
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return nil, 0, err
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}
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result := r.db.WithContext(ctx).Where("user_id = ?", userID).Offset(offset).Limit(limit).Find(&files)
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if result.Error != nil {
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return nil, 0, result.Error
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}
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return files, total, nil
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}
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func (r *fileRepository) FindByParentID(ctx context.Context, userID string, parentID *string) ([]model.File, error) {
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var files []model.File
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result := r.db.WithContext(ctx).Where("user_id = ? AND parent_id IS ?", userID, parentID).Find(&files)
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if result.Error != nil {
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return nil, result.Error
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}
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return files, nil
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}
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func (r *fileRepository) FindByParentIDPaginated(ctx context.Context, userID string, parentID *string, offset, limit int) ([]model.File, int64, error) {
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var files []model.File
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var total int64
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if err := r.db.WithContext(ctx).Model(&model.File{}).Where("user_id = ? AND parent_id IS ?", userID, parentID).Count(&total).Error; err != nil {
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return nil, 0, err
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}
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result := r.db.WithContext(ctx).Where("user_id = ? AND parent_id IS ?", userID, parentID).Offset(offset).Limit(limit).Order("is_dir DESC, name ASC").Find(&files)
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if result.Error != nil {
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return nil, 0, result.Error
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}
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return files, total, nil
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}
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func (r *fileRepository) FindByNameAndParent(ctx context.Context, userID string, parentID *string, name string) (*model.File, error) {
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var file model.File
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result := r.db.WithContext(ctx).Where("user_id = ? AND parent_id IS ? AND name = ?", userID, parentID, name).First(&file)
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if errors.Is(result.Error, gorm.ErrRecordNotFound) {
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return nil, model.ErrNotFound
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}
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if result.Error != nil {
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return nil, result.Error
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}
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return &file, nil
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}
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func (r *fileRepository) Update(ctx context.Context, file *model.File) error {
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result := r.db.WithContext(ctx).Save(file)
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if result.Error != nil {
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return result.Error
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}
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return nil
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}
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func (r *fileRepository) Delete(ctx context.Context, id string) error {
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result := r.db.WithContext(ctx).Delete(&model.File{}, "id = ?", id)
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if result.Error != nil {
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return result.Error
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}
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return nil
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}
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