New button to redo gradation

works.go

@@ -275,6 +275,26 @@ func declareAPIAdminWorksRoutes(router *gin.RouterGroup) {
 
 		c.Redirect(http.StatusFound, fmt.Sprintf("%s/%s", droneEndpoint, repo.TestsRef))
 	})
+	gradesRoutes.POST("/traces", func(c *gin.Context) {
+		w := c.MustGet("work").(*Work)
+		g := c.MustGet("grade").(*WorkGrade)
+
+		var u *User
+		if user, ok := c.Get("user"); ok {
+			u = user.(*User)
+		} else {
+			u = c.MustGet("LoggedUser").(*User)
+		}
+
+		repo, err := u.getRepositoryByWork(g.IdWork)
+		if err != nil {
+			log.Printf("Unable to getRepositoryByWork(uid=%d, wid=%d): %s", u.Id, g.IdWork, err.Error())
+			c.AbortWithStatusJSON(http.StatusNotFound, gin.H{"errmsg": "Unable to find a corresponding repository."})
+			return
+		}
+
+		TriggerTests(c, w, repo, u)
+	})
 	gradesRoutes.GET("/forge", func(c *gin.Context) {
 		g := c.MustGet("grade").(*WorkGrade)