Allow updating birthdate, with admin report

pkg/controller/account/settings.go

@@ -77,12 +77,31 @@ func Settings() http.HandlerFunc {
 						return
 					}
 
-					// The user isn't allowed to change it on their own, even if they edit the form to remove the readonly value.
+					// If the user changes their birthdate, notify the admin.
 					if !user.Birthdate.IsZero() && user.Birthdate.Format("2006-01-02") != dob {
-						session.FlashError(w, r, "Please contact support if you want to change your birthdate.")
-					} else {
-						user.Birthdate = birthdate
+						// Create an admin Feedback model.
+						fb := &models.Feedback{
+							Intent:    "report",
+							Subject:   "report.dob",
+							UserID:    user.ID,
+							TableName: "users",
+							TableID:   user.ID,
+							Message: fmt.Sprintf(
+								"A user has modified their birthdate on their profile page!\n\n"+
+									"* Original: %s (age %d)\n* Updated: %s (age %d)",
+								user.Birthdate, utility.Age(user.Birthdate),
+								birthdate, utility.Age(birthdate),
+							),
+						}
+
+						// Save the feedback.
+						if err := models.CreateFeedback(fb); err != nil {
+							log.Error("Couldn't save feedback from user updating their DOB: %s", err)
+						}
 					}
+
+					// Work around DST issues: set the hour to noon.
+					user.Birthdate = birthdate.Add(12 * time.Hour)
 				}
 
 				// Set profile attributes.

web/templates/account/settings.html

@@ -73,12 +73,12 @@
                                 id="dob"
                                 name="dob"
                                 value="{{if not $User.Birthdate.IsZero}}{{$User.Birthdate.Format "2006-01-02"}}{{end}}"
-                                required
-                                {{if not $User.Birthdate.IsZero}}readonly{{end}}>
+                                required>
                             <p class="help">
                                 Used to show your age on your profile.
                                 {{if not $User.Birthdate.IsZero}}
-                                    If you entered a wrong birthdate, <a href="/contact">contact</a> support to change it.
+                                    If you entered a wrong birthdate, you can change it here. Note that all birthdate
+                                    changes will notify the admin, so don't mess around or behave dishonestly.
                                 {{end}}
                             </p>