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https://github.com/SamyRai/tercul-backend.git
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4957117cb6
- Core Go application with GraphQL API using gqlgen - Comprehensive data models for literary works, authors, translations - Repository pattern with caching layer - Authentication and authorization system - Linguistics analysis capabilities with multiple adapters - Vector search integration with Weaviate - Docker containerization support - Python data migration and analysis scripts - Clean architecture with proper separation of concerns - Production-ready configuration and middleware - Proper .gitignore excluding vendor/, database files, and build artifacts
74 lines
2.2 KiB
Go
74 lines
2.2 KiB
Go
package repositories
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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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"tercul/models"
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)
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// BookRepository defines CRUD methods specific to Book.
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type BookRepository interface {
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BaseRepository[models.Book]
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ListByAuthorID(ctx context.Context, authorID uint) ([]models.Book, error)
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ListByPublisherID(ctx context.Context, publisherID uint) ([]models.Book, error)
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ListByWorkID(ctx context.Context, workID uint) ([]models.Book, error)
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FindByISBN(ctx context.Context, isbn string) (*models.Book, error)
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}
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type bookRepository struct {
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BaseRepository[models.Book]
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db *gorm.DB
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}
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// NewBookRepository creates a new BookRepository.
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func NewBookRepository(db *gorm.DB) BookRepository {
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return &bookRepository{
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BaseRepository: NewBaseRepositoryImpl[models.Book](db),
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db: db,
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}
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}
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// ListByAuthorID finds books by author ID
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func (r *bookRepository) ListByAuthorID(ctx context.Context, authorID uint) ([]models.Book, error) {
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var books []models.Book
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if err := r.db.WithContext(ctx).Joins("JOIN book_authors ON book_authors.book_id = books.id").
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Where("book_authors.author_id = ?", authorID).
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Find(&books).Error; err != nil {
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return nil, err
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}
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return books, nil
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}
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// ListByPublisherID finds books by publisher ID
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func (r *bookRepository) ListByPublisherID(ctx context.Context, publisherID uint) ([]models.Book, error) {
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var books []models.Book
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if err := r.db.WithContext(ctx).Where("publisher_id = ?", publisherID).Find(&books).Error; err != nil {
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return nil, err
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}
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return books, nil
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}
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// ListByWorkID finds books by work ID
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func (r *bookRepository) ListByWorkID(ctx context.Context, workID uint) ([]models.Book, error) {
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var books []models.Book
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if err := r.db.WithContext(ctx).Joins("JOIN book_works ON book_works.book_id = books.id").
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Where("book_works.work_id = ?", workID).
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Find(&books).Error; err != nil {
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return nil, err
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}
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return books, nil
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}
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// FindByISBN finds a book by ISBN
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func (r *bookRepository) FindByISBN(ctx context.Context, isbn string) (*models.Book, error) {
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var book models.Book
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if err := r.db.WithContext(ctx).Where("isbn = ?", isbn).First(&book).Error; err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return nil, ErrEntityNotFound
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}
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return nil, err
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}
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return &book, nil
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}
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