Fetch given single responses from DB and implement random order

orm/response.go

@@ -1,6 +1,7 @@
 package orm
 
 import (
+	"fmt"
 	"net/http"
 	"strconv"
 	"strings"
@@ -124,8 +125,22 @@ func (model *Response) Read(args map[string]string, w http.ResponseWriter, r *ht
 
 	}
 
+	qOrder := make([]uint, 0)
+	qIDs := strings.Split(response.QuestionsOrder, " ")
+	for _, id := range qIDs {
+		id, err := strconv.Atoi(id)
+		if err != nil {
+			return nil, err
+		}
+		qOrder = append(qOrder, uint(id))
+	}
+
 	// Fetch questions in the given order
-	if err := DB().Where("contest_id = ?", response.Contest.ID).Preload("Answers").Find(&response.Questions).Error; err != nil {
+
+	field := fmt.Sprintf("FIELD(id,%s)", strings.Replace(response.QuestionsOrder, " ", ",", -1))
+	if err := DB().Order(field).Where("contest_id = ?", response.Contest.ID).Preload("Answers", func(db *gorm.DB) *gorm.DB {
+		return db.Order("RAND()")
+	}).Find(&response.Questions).Error; err != nil {
 		return nil, err
 	}
 

renderer/funcmap.go

@@ -22,6 +22,7 @@ const (
 
 var (
 	funcMap = template.FuncMap{
+		"isResponseIn":   isResponseIn,
 		"query":          query,
 		"convertDate":    convertDate,
 		"convertTime":    convertTime,
@@ -62,6 +63,27 @@ var (
 	}
 )
 
+func isResponseIn(id uint, answersIDs string) (bool, error) {
+	if answersIDs != "" {
+		ids := make([]uint, 0)
+		srIDs := strings.Split(answersIDs, " ")
+		for _, srID := range srIDs {
+			id, err := strconv.Atoi(srID)
+			if err != nil {
+				return false, err
+			}
+			ids = append(ids, uint(id))
+		}
+
+		for _, v := range ids {
+			if v == id {
+				return true, nil
+			}
+		}
+	}
+	return false, nil
+}
+
 func username(claims jwt.MapClaims) string {
 	return claims["username"].(string)
 }

templates/responses_add_update.html.tpl

@@ -9,9 +9,9 @@
   
   {{if $update}}
 
-  {{template "breadcrumb" toSlice "Responses" (all "Response") (.Data|string) (.Data.ID|show "Response") "Aggiorna" "current"}}
+  {{template "breadcrumb" toSlice "Prove" (all "Response") (.Data|string) (.Data.ID|show "Response") "Aggiorna" "current"}}
   {{else}}
-  {{template "breadcrumb" toSlice "Responses" (all "Response") "Aggiungi" "current"}}
+  {{template "breadcrumb" toSlice "Prove" (all "Response") "Aggiungi" "current"}}
   {{end}}
   
   {{end}}
@@ -30,8 +30,12 @@
       <p class="lead">{{$question.Text}}</p>
       {{range $answer := $question.Answers}}
       <div class="form-check">
-	<input class="form-check-input" type="radio" name="SingleResponses.{{$id}}" id="answer_{{$answer.ID}}" value="{{$answer.ID}}" required>
+	{{$checked := false}}
-	<label class="form-check-label" for="answer_{{$answer.ID}}">
+	{{if isResponseIn $answer.ID $.Data.AnswersIDs}}
+	{{$checked = true}}
+	{{end}}
+	<input class="form-check-input" type="radio" name="SingleResponses.{{$id}}" id="answer_{{$answer.ID}}" value="{{$answer.ID}}" required {{if $checked}}checked{{end}}>
+	<label class="form-check-label {{if $answer.Correct}}text-success{{end}}" for="answer_{{$answer.ID}}">
 	  {{$answer}}
 	</label>
       </div>