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Add ReadCount field to deletion requests so that we can eventually delete them from the DB

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This commit is contained in:
David Dworken
2022-09-20 21:13:59 -07:00
parent 5391ecd220
commit 41f82e8034
2 changed files with 19 additions and 5 deletions
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22
backend/server/server.go
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@ -109,12 +109,15 @@ func apiQueryHandler(w http.ResponseWriter, r *http.Request) {
deviceId := getRequiredQueryParam(r, "device_id")
updateUsageData(userId, deviceId)
// Increment the count
GLOBAL_DB.Exec("UPDATE enc_history_entries SET read_count = read_count + 1 WHERE device_id = ?", deviceId)
result := GLOBAL_DB.Exec("UPDATE enc_history_entries SET read_count = read_count + 1 WHERE device_id = ?", deviceId)
if result.Error != nil {
panic(result.Error)
}
// Then retrieve, to avoid a race condition
tx := GLOBAL_DB.Where("device_id = ? AND read_count < 5", deviceId)
var historyEntries []*shared.EncHistoryEntry
result := tx.Find(&historyEntries)
result = tx.Find(&historyEntries)
if result.Error != nil {
panic(fmt.Errorf("DB query error: %v", result.Error))
}
@ -205,11 +208,18 @@ func apiBannerHandler(w http.ResponseWriter, r *http.Request) {
}
func getDeletionRequestsHandler(w http.ResponseWriter, r *http.Request) {
// TODO: Count how many times they've been read and eventually delete them
userId := getRequiredQueryParam(r, "user_id")
deviceId := getRequiredQueryParam(r, "device_id")
// Increment the ReadCount
result := GLOBAL_DB.Exec("UPDATE deletion_requesy SET read_count = read_count + 1 WHERE destination_device_id = ? AND user_id = ?", deviceId, userId)
if result.Error != nil {
panic(result.Error)
}
// Return all the deletion requests
var deletionRequests []*shared.DeletionRequest
result := GLOBAL_DB.Where("user_id = ? AND destination_device_id = ?", userId, deviceId).Find(&deletionRequests)
result = GLOBAL_DB.Where("user_id = ? AND destination_device_id = ?", userId, deviceId).Find(&deletionRequests)
if result.Error != nil {
panic(fmt.Errorf("DB query error: %v", result.Error))
}
@ -519,6 +529,10 @@ func cleanDatabase() error {
if result.Error != nil {
return result.Error
}
result = GLOBAL_DB.Exec("DELETE FROM deletion_requests WHERE read_count > 100")
if result.Error != nil {
return result.Error
}
// TODO: Clean the database by deleting entries for users that haven't been used in X amount of time
return nil
}