add postgres.AddRecipeInformation

Makefile

@@ -8,3 +8,5 @@ migrate_down:
 	CONFIG_PATH=./config/local.yaml go run ./cmd/migrator/main.go --migrations-path ./migrations --down
 run_parser:
 	go run ./cmd/parser/main.go -config ./config/local.yaml
+lint:
+	golangci-lint run

internal/storage/postgresql/postgresql.go

@@ -12,6 +12,10 @@ type Storage struct {
 	db *pgxpool.Pool
 }
 
+// TODO
+// handling special errors
+// AddRecipeInformation
+
 func New(ctx context.Context, user, password, addr, dbname string) (*Storage, error) {
 	const op = "storage.postgresql.New"
 
@@ -195,21 +199,120 @@ func (s *Storage) GetRecipe(ctx context.Context, r_id uint) (models.Recipe, erro
 	return recipe, nil
 }
 
-// TODO
-// handling special errors
-// AddRecipeInformation
-
 // AddRecipeInformation adds to recipe struct info about ingredients, steps, advices, categories.
 func (s *Storage) AddRecipeInformation(ctx context.Context, r *models.Recipe) error {
 	const op = "storage.postgresql.AddRecipeInformation"
 
 	// select ingredients
+	ingredientsg_rows, err := s.db.Query(
+		ctx,
+		"select id, title from recipe_ingredients_group where recipe_id = $1",
+		r.ID,
+	)
+	if err != nil {
+		return fmt.Errorf("%s: %w", op, err)
+	}
+
+	defer ingredientsg_rows.Close()
+
+	for ingredientsg_rows.Next() {
+		var ingredients_group_id uint
+		var recipe_ingredients models.RecipeIngredients
+
+		err = ingredientsg_rows.Scan(
+			&ingredients_group_id,
+			&recipe_ingredients.Title,
+		)
+		if err != nil {
+			return fmt.Errorf("%s: %w", op, err)
+		}
+
+		ingredient_rows, err := s.db.Query(
+			ctx,
+			"select ingredient from recipe_ingredients where recipe_ingredients_group_id = $1",
+			ingredients_group_id,
+		)
+		if err != nil {
+			return fmt.Errorf("%s: %w", op, err)
+		}
+
+		defer ingredient_rows.Close()
+
+		for ingredient_rows.Next() {
+			var ingredient string
+
+			err = ingredient_rows.Scan(
+				&ingredient,
+			)
+			if err != nil {
+				return fmt.Errorf("%s: %w", op, err)
+			}
+
+			recipe_ingredients.Ingredients = append(recipe_ingredients.Ingredients, ingredient)
+		}
+
+		r.Ingredients = append(r.Ingredients, recipe_ingredients)
+	}
 
 	// select steps
+	step_rows, err := s.db.Query(ctx, "select step_text from recipe_steps where recipe_id = $1 order by step_num", r.ID)
+	if err != nil {
+		return fmt.Errorf("%s: %w", op, err)
+	}
+	defer step_rows.Close()
+
+	for step_rows.Next() {
+		var step string
+
+		err = step_rows.Scan(
+			&step,
+		)
+		if err != nil {
+			return fmt.Errorf("%s: %w", op, err)
+		}
+
+		r.Recipe_steps = append(r.Recipe_steps, step)
+	}
 
 	// select advices
+	advice_rows, err := s.db.Query(ctx, "select advice from recipe_advices where recipe_id = $1", r.ID)
+	if err != nil {
+		return fmt.Errorf("%s: %w", op, err)
+	}
+	defer advice_rows.Close()
+
+	for advice_rows.Next() {
+		var advice string
+
+		err = advice_rows.Scan(
+			&advice,
+		)
+		if err != nil {
+			return fmt.Errorf("%s: %w", op, err)
+		}
+
+		r.Advices = append(r.Advices, advice)
+	}
 
 	// select categories
+	category_rows, err := s.db.Query(ctx, "select category from recipe_categories where recipe_id = $1", r.ID)
+	if err != nil {
+		return fmt.Errorf("%s: %w", op, err)
+	}
+	defer category_rows.Close()
+
+	for category_rows.Next() {
+		var category string
+
+		err = category_rows.Scan(
+			&category,
+		)
+		if err != nil {
+			return fmt.Errorf("%s: %w", op, err)
+		}
+
+		r.Categories = append(r.Categories, category)
+	}
 
 	return nil
 }