Add admin index page

handler/admin.go

@@ -12,3 +12,13 @@ func AdminMainPage(pool *pgxpool.Pool) gin.HandlerFunc {
 		c.HTML(http.StatusAccepted, "adminindex.html", database.DbAdminMainpage(pool))
 	}
 }
+
+func ChangeName(pool *pgxpool.Pool) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		selectedID := c.PostForm("names")
+		personID := c.PostForm("personid")
+
+		database.ChangeName(pool, selectedID, personID)
+		c.Redirect(302, "/admin")
+	}
+}