Fix MakeRecipeFromId

MakeRecipeFromId was creating a empty recipe because rows.Next() was not
being checked.

1 files changed, 49 insertions, 48 deletions

diff --git a/backend/recipe.go b/backend/recipe.go
index 1d6da90..98308d3 100644
--- a/backend/recipe.go
+++ b/backend/recipe.go
@@ -57,63 +57,64 @@ func RecipeFromId(id int, db *sql.DB) *Recipe {
 		var title, photo_urls, keywords, desc string
 
 		defer rows.Close()
-		rows.Next()
-		rows.Scan(&id, &title, &photo_urls, &keywords, &desc, &servings, &cook_time, &rating, &num_cooked)
-		rec = Recipe{
-			Id:           id,
-			Title:        title,
-			Desc:         desc,
-			Photos:       make([]string, 0),
-			Serving_size: servings,
-			Cook_time:    cook_time,
-			Rating:       rating,
-			Keywords:     make([]string, 0),
-			Ingredients:  make([]Ingredient, 0),
-			Steps:        make([]Step, 0)}
-
-		if len(photo_urls) > 0 {
-			photos := strings.Split(photo_urls, "|")
-			for _, p := range photos {
-				rec.Photos = append(rec.Photos, p)
+		if rows.Next() {
+			rows.Scan(&id, &title, &photo_urls, &keywords, &desc, &servings, &cook_time, &rating, &num_cooked)
+			rec = Recipe{
+				Id:           id,
+				Title:        title,
+				Desc:         desc,
+				Photos:       make([]string, 0),
+				Serving_size: servings,
+				Cook_time:    cook_time,
+				Rating:       rating,
+				Keywords:     make([]string, 0),
+				Ingredients:  make([]Ingredient, 0),
+				Steps:        make([]Step, 0)}
+
+			if len(photo_urls) > 0 {
+				photos := strings.Split(photo_urls, "|")
+				for _, p := range photos {
+					rec.Photos = append(rec.Photos, p)
+				}
 			}
-		}
-		if len(keywords) > 0 {
-			keyword_split := strings.Split(keywords, "|")
-			for _, k := range keyword_split {
-				rec.Keywords = append(rec.Keywords, k)
+			if len(keywords) > 0 {
+				keyword_split := strings.Split(keywords, "|")
+				for _, k := range keyword_split {
+					rec.Keywords = append(rec.Keywords, k)
+				}
 			}
-		}
 
-		var name, unit string
-		var amount float64
-		rows, err = db.Query("SELECT name, amount, unit FROM ingredients WHERE recipe_id = $1", id)
-		if err == nil {
-			for rows.Next() {
-				rows.Scan(&name, &amount, &unit)
-				ingr = Ingredient{
-					Name:   name,
-					Amount: amount,
-					Unit:   unit,
+			var name, unit string
+			var amount float64
+			rows, err = db.Query("SELECT name, amount, unit FROM ingredients WHERE recipe_id = $1", id)
+			if err == nil {
+				for rows.Next() {
+					rows.Scan(&name, &amount, &unit)
+					ingr = Ingredient{
+						Name:   name,
+						Amount: amount,
+						Unit:   unit,
+					}
+					rec.Ingredients = append(rec.Ingredients, ingr)
 				}
-				rec.Ingredients = append(rec.Ingredients, ingr)
 			}
-		}
 
-		var num, timer int
-		rows, err = db.Query("SELECT step, description, timer FROM steps WHERE recipe_id = $1", id)
-		if err == nil {
-			for rows.Next() {
-				rows.Scan(&num, &desc, &timer)
-				step = Step{
-					Num:  num,
-					Desc: desc,
-					Time: timer,
+			var num, timer int
+			rows, err = db.Query("SELECT step, description, timer FROM steps WHERE recipe_id = $1", id)
+			if err == nil {
+				for rows.Next() {
+					rows.Scan(&num, &desc, &timer)
+					step = Step{
+						Num:  num,
+						Desc: desc,
+						Time: timer,
+					}
+					rec.Steps = append(rec.Steps, step)
 				}
-				rec.Steps = append(rec.Steps, step)
 			}
-		}
 
-		return &rec
+			return &rec
+		}
 	}
 
 	return nil