add missing models

kontor-gin/internal/repository/author.go

@@ -0,0 +1,27 @@
+package repository
+
+import (
+	"context"
+	"kontor-api-gin/internal/models"
+	"log/slog"
+
+	"gorm.io/gorm"
+)
+
+type AuthorRepository struct {
+	db *gorm.DB
+}
+
+func NewAuthorRepository(db *gorm.DB) *AuthorRepository {
+	repo := &AuthorRepository{db: db}
+	return repo
+}
+
+func (repository *AuthorRepository) FindAll(context context.Context) ([]models.Author, error) {
+	var authors []models.Author
+
+	result := repository.db.Find(&authors)
+	slog.Info("AuthorRepository#FindAll", "count", result.RowsAffected)
+
+	return authors, nil
+}