✨ functioning form submission

Co-authored-by: Sindre Kjelsrud <kjelsrudsindre@gmail.com>

backend/cmd/main.go

@@ -20,7 +20,7 @@ type UserformData struct {
 
 type FormData struct {
     FormAnswers        string `json:"allFormAnswers"`
-    RespondentId       int `json:"respondentID"`
+    RespondentId       int    `json:"respondentID"`
 }
 
 func main() {
@@ -77,7 +77,7 @@ func main() {
             fmt.Print(err)
         }
 
-        respondentID, err := db.InsertUserAnswers(requestBody.RespondentId, requestBody.FormAnswers)
+        err := db.InsertUserAnswers(requestBody.RespondentId, requestBody.FormAnswers)
         
         if err != nil {
 			fmt.Print(err)
@@ -86,7 +86,7 @@ func main() {
 		}
 
         // Respond with the ID of the newly inserted respondent
-		c.JSON(http.StatusOK, gin.H{"respondentID": respondentID})
+		c.JSON(http.StatusOK, "Successfully inserted formdata!")
     })
 
     // Run the server on port 8080

backend/db/insert_user_answers.go

@@ -9,13 +9,14 @@ import (
 	_ "github.com/lib/pq"
 )
 
-func InsertUserAnswers(respondentId int, allAnswers string) (int, error) {
-	// Parse allAnswers from JSON string to map
-	var allAnswersArray []string
-	err := json.Unmarshal([]byte(allAnswers), &allAnswersArray)
-	if err != nil {
-		return 0, fmt.Errorf("invalid JSON format for allAnswers: %v", err)
-	}
+type FormAnswer struct {
+    AnswerID int
+    Ratings  []int
+}
+
+type AllFormAnswers []FormAnswer
+
+func InsertUserAnswers(respondentId int, allAnswers string) (error) {
 
 	// Connection string
 	psqlInfo := fmt.Sprintf("host=%s port=%d user=%s "+
@@ -35,21 +36,72 @@ func InsertUserAnswers(respondentId int, allAnswers string) (int, error) {
 		log.Fatalf("Error connecting to the database: %v\n", err)
 	}
 
-	insertStatement := `
-	INSERT INTO SvarVurdering (svarID, respondentID, kunnskap, empati, hjelpsomhet)
-	VALUES ($1, $2, $3, $4, $5)
-	`
+	var convertedFormAnswers = convertAnswerFormat(allAnswers)
 
-	tx, err := db.Begin()
-	if err != nil {
-		log.Fatalf("Error creating transaction: %v\n", err)
+	for _,formanswer := range convertedFormAnswers {
+		insertStatement := `
+		INSERT INTO SvarVurdering (svarID, respondentID, kunnskap, empati, hjelpsomhet)
+		VALUES ($1, $2, $3, $4, $5)
+		`
+		stmt, err := db.Prepare(insertStatement)
+		if err != nil {
+			log.Fatalf("Error preparing statement: %v\n", err)
+		}
+		defer stmt.Close()
+
+		kunnskap := formanswer.Ratings[0]
+		empati := formanswer.Ratings[1]
+		hjelpsomhet := formanswer.Ratings[2]
+
+		_, err = stmt.Exec(formanswer.AnswerID, respondentId, kunnskap, empati, hjelpsomhet)
+		if err != nil {
+			log.Fatalf("Error executing statement: %v\n", err)
+		}
 	}
 
-	err = tx.Commit()
-	if err != nil {
-		log.Fatalf("Transaction commit failed: %v\n", err)
-	}
+	fmt.Print("Inserted data successfully")
 
-	fmt.Printf("Data inserted successfully for respondentID: %d\n", respondentId)
-	return respondentId, nil
+	return nil
+}
+
+func convertAnswerFormat(allAnswers string) (AllFormAnswers) {
+	// Define an intermediate structure that matches the input format
+    var intermediate [][]interface{}
+
+    // Parse the JSON string into the intermediate structure
+    err := json.Unmarshal([]byte(allAnswers), &intermediate)
+    if err != nil {
+        log.Fatalf("Error parsing JSON: %v", err)
+    }
+
+    // Convert the intermediate structure to OuterSlice
+    var result AllFormAnswers
+    for _, pair := range intermediate {
+        if len(pair) != 2 {
+            log.Fatalf("Invalid pair length: %v", pair)
+        }
+
+        number, ok := pair[0].(float64) // JSON numbers are parsed as float64
+        if !ok {
+            log.Fatalf("Expected a number, got: %v", pair[0])
+        }
+
+        arrayInterface, ok := pair[1].([]interface{})
+        if !ok {
+            log.Fatalf("Expected an array, got: %v", pair[1])
+        }
+
+        var array []int
+        for _, item := range arrayInterface {
+            num, ok := item.(float64)
+            if !ok {
+                log.Fatalf("Expected a number in array, got: %v", item)
+            }
+            array = append(array, int(num))
+        }
+
+        result = append(result, FormAnswer{AnswerID: int(number), Ratings: array})
+    }
+
+	return result
 }