maciekmm/hackathon-uek-platforma-backend: timetable/coordinator.go; 32 LoC

Found a possible issue in [maciekmm/hackathon-uek-platforma-backend](https://www.github.com/maciekmm/hackathon-uek-platforma-backend) at [timetable/coordinator.go](https://github.com/maciekmm/hackathon-uek-platforma-backend/blob/b59518bd5bad0b97ad4a22a1e78cd80f1a139259/timetable/coordinator.go#L181-L212)

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 group was used in a composite literal at line 201

[Click here to see the code in its original context.](https://github.com/maciekmm/hackathon-uek-platforma-backend/blob/b59518bd5bad0b97ad4a22a1e78cd80f1a139259/timetable/coordinator.go#L181-L212)

Click here to show the 32 line(s) of Go which triggered the analyzer.

```go
for _, group := range res {
c.Logger.Printf("checking plan updates for %d-%d\n", group, 3)
old, cached, err := c.Load(group, 3, false)
if err != nil {
c.Logger.Printf("could not fetch and parse timetable for group: %d, period: %d, err: %s\n", group, 3, err.Error())
continue
}
if !cached {
continue
}
new, _, err := c.Load(group, 3, true)
if err != nil {
c.Logger.Printf("could not fetch and parse timetable for group: %d, period: %d, err: %s\n", group, 3, err.Error())
continue
}
diff := old.Diff(*new)
pri := models.EventPriorityHigh
if len(diff) > 0 {
c.Logger.Printf("changes detected in %d-%d\n", group, 3)
event := &models.Event{
Group: &group,
Name: "Zmiana w planie zajęć!",
NotificationMessage: "Zapoznaj się z nowym planem zajęć.",
Description: diff.String(),
Priority: &pri,
}
if err := event.Add(c.Database, c.EventPipe); err != nil {
c.Logger.Printf("could not send timetable diff: %s", err.Error())
}
}
time.Sleep(1 * time.Second)
}

```

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See the descriptions of the classifications [here](https://github.com/github-vet/rangeclosure-findings#how-can-i-help) for more information.

commit ID: b59518bd5bad0b97ad4a22a1e78cd80f1a139259