//ConfigurationInfo ci;
////-------------------------------------------------------------------------------------------------------------------------------------------------------------
//public LocaliseTime(ConfigurationInfo ci) {
// this.ci = ci;
//}
//-------------------------------------------------------------------------------------------------------------------------------------------------------------
/// <summary>
/// localisationOption can be 1=System default (normally UTC), 2=Frontend default, 3=User last login / access,
/// DEPRECATED - 4 - DEPRECATED=current login credentials
/// If 3 is not available, will default to 2; if 2 not available, will default to 1
/// 4 is only really relevant in a couple of special cases, the PasswordResetRequest and the PasswordReset, as the user does
/// not actually login to complete these. We now handle the collection of this information in these two pages, if it differs from
/// previous information.
/// </summary>
public static bool Localise(ConfigurationInfo ci, DateTime utcDT, int localisationOption, int userID, out DateTime localDT)
{
bool success = false;
localDT = utcDT;
int timezoneOffset = 0;
try {
if (DateTimeInformation.IsNullDate(utcDT) == false)
{
if (localisationOption > 3 || localisationOption < 1 || (localisationOption == 3 && userID == 0))
{
Logger.LogError(6, "Unknown or invalid localisation option provided (" + localisationOption + " with userID " + userID + ") in LocaliseTime.Localise: " + Environment.StackTrace);
}
else
{
// try with 3
if (localisationOption == 3)
{
success = GetTimezoneOffset(ci, 0, userID, out timezoneOffset);
}
// try with 2 or if 3 failed
if (localisationOption == 2 || (localisationOption == 3 && success == false))
{
success = GetTimezoneOffset(ci, 2, 0, out timezoneOffset);
}
// try with 1 or if 3 failed
if (localisationOption == 1 || success == false)
{
success = GetTimezoneOffset(ci, 1, 0, out timezoneOffset);
}
if (success == true)
{
// Timezones ahead of GMT / UTC actually are negative (a bit counterintuitively) so these will need to be added
if (timezoneOffset == 0)
{
// Do nothing ...
}
else if (timezoneOffset < 0)
{
localDT = utcDT.Add(new TimeSpan(0, timezoneOffset * -1, 0));
}
else
{
localDT = utcDT.Subtract(new TimeSpan(0, timezoneOffset, 0));
}
}
}
}
} catch (Exception ex) {
Logger.LogError(5, "Problem localising the given date time (" + utcDT + ") using localisation option " + localisationOption + " and userID " + userID + ". Check it out:" + ex.ToString());
} finally {
}
return(success);
}
//-------------------------------------------------------------------------------------------------------------------------------------------------------------
/// <summary>
/// The excel export code needs this version ...
/// Optimised localisation where the timezone offset is known and can be utilised for multiple entries
/// e.g. the search and export functions...
/// Note that this always returns true!
/// Returns the localised datetime object
/// </summary>
public static DateTime Localise(DateTime utcDT, int timezoneOffset)
{
DateTime localDate = utcDT;
if (DateTimeInformation.IsNullDate(utcDT) == false)
{
// Timezones ahead of GMT / UTC actually are negative (a bit counterintuitively) so these will need to be added
if (timezoneOffset == 0)
{
// Do nothing ...
}
else if (timezoneOffset < 0)
{
localDate = utcDT.Add(new TimeSpan(0, timezoneOffset * -1, 0));
}
else
{
localDate = utcDT.Subtract(new TimeSpan(0, timezoneOffset, 0));
}
}
return(localDate);
}