Revert "Display survey mean to admin"

This reverts commit d7f679ce84.

surveys.go

@@ -72,12 +72,11 @@ func declareAPIAuthSurveysRoutes(router *gin.RouterGroup) {
 	surveysRoutes.Use(surveyUserAccessHandler)
 
 	surveysRoutes.GET("/score", func(c *gin.Context) {
-		loggedUser := c.MustGet("LoggedUser").(*User)
 		var u *User
 		if user, ok := c.Get("user"); ok {
 			u = user.(*User)
 		} else {
-			u = loggedUser
+			u = c.MustGet("LoggedUser").(*User)
 		}
 		s := c.MustGet("survey").(*Survey)
 
@@ -89,29 +88,10 @@ func declareAPIAuthSurveysRoutes(router *gin.RouterGroup) {
 				return
 			}
 
-			if score != nil {
-				c.JSON(http.StatusOK, map[string]float64{"score": *score})
-			} else if _, ok := c.Get("user"); !ok && loggedUser.IsAdmin {
-				// Admin retrieve mean score
-				scores, err := s.GetGrades()
-				if err != nil {
-					log.Printf("Unable to GetGrades(sid=%d): %s", s.Id, err.Error())
-					c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"errmsg": "An error occurs when trying to retrieve grades."})
-					return
-				}
-
-				*score = 0
-				nbGrades := 0
-				for _, s := range scores {
-					*score += *s
-					nbGrades += 1
-				}
-
-				*score /= float64(nbGrades)
-
-				c.JSON(http.StatusOK, map[string]float64{"score": *score})
-			} else {
+			if score == nil {
 				c.JSON(http.StatusOK, map[string]string{"score": "N/A"})
+			} else {
+				c.JSON(http.StatusOK, map[string]float64{"score": *score})
 			}
 		} else {
 			c.AbortWithStatusJSON(http.StatusForbidden, gin.H{"errmsg": "Not accessible"})