start rmser

internal/infrastructure/repository/recipes/postgres.go

@@ -0,0 +1,38 @@
+package recipes
+
+import (
+	"rmser/internal/domain/recipes"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+type pgRepository struct {
+	db *gorm.DB
+}
+
+func NewRepository(db *gorm.DB) recipes.Repository {
+	return &pgRepository{db: db}
+}
+
+func (r *pgRepository) SaveRecipes(list []recipes.Recipe) error {
+	return r.db.Transaction(func(tx *gorm.DB) error {
+		for _, recipe := range list {
+			if err := tx.Omit("Items").Clauses(clause.OnConflict{
+				Columns:   []clause.Column{{Name: "id"}},
+				UpdateAll: true,
+			}).Create(&recipe).Error; err != nil {
+				return err
+			}
+			if err := tx.Where("recipe_id = ?", recipe.ID).Delete(&recipes.RecipeItem{}).Error; err != nil {
+				return err
+			}
+			if len(recipe.Items) > 0 {
+				if err := tx.Create(&recipe.Items).Error; err != nil {
+					return err
+				}
+			}
+		}
+		return nil
+	})
+}