Ramso-dev/cback: services/admin.go; 60 LoC

Found a possible issue in [Ramso-dev/cback](https://www.github.com/Ramso-dev/cback) at [services/admin.go](https://github.com/Ramso-dev/cback/blob/1013dd99004046c90e387bc4fa515e75fc80425e/services/admin.go#L580-L639)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first
issue it finds, so please do not limit your consideration to the contents of the below message.

> reference to event is reassigned at line 601

[Click here to see the code in its original context.](https://github.com/Ramso-dev/cback/blob/1013dd99004046c90e387bc4fa515e75fc80425e/services/admin.go#L580-L639)

Click here to show the 60 line(s) of Go which triggered the analyzer.

```go
for _,event := range events{

c := session.DB(AuthDatabase).C(CalendarCollection)

err := c.Insert(event)
if err != nil {

http.Error(w, "Database error", http.StatusInternalServerError)
log.Println("Failed insert 1: ", err)
return
}
c = session.DB(AuthDatabase).C(UserCollection)
var user models.User
err = c.Find(bson.M{"email": event.Email}).One(&user)

if err != nil {

http.Error(w, "Database error", http.StatusInternalServerError)
log.Println("Failed insert 2: ", err)
return
}
user.NextEvent=&event
user.Events=append(user.Events,&event)

err = c.Update(bson.M{"email": event.Email},&user)
if err != nil {

http.Error(w, "Database error", http.StatusInternalServerError)
log.Println("Failed insert 3: ", err)
return
}

c = session.DB(AuthDatabase).C(CalendarCollection)
err = c.Find(bson.M{"email": event.Email}).One(&event)
if err != nil {

http.Error(w, "Database error", http.StatusInternalServerError)
log.Println("Failed insert 4a: ", err)
return
}
event.RelateID=user.Id
log.Println(event)
err = c.Update(bson.M{"email": event.Email},&event)
if err != nil {

http.Error(w, "Database error", http.StatusInternalServerError)
log.Println("Failed insert 4: ", err)
return
}
/*
err = c.Update(bson.M{"email": event.Email}).One(&user)
err := c.Insert(event)
if err != nil {

http.Error(w, "Database error", http.StatusInternalServerError)
log.Println("Failed insert user: ", err)
return
}*/

}

```

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commit ID: 1013dd99004046c90e387bc4fa515e75fc80425e