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iis4_07.cab
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Schedule.cls
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1997-11-01
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151 lines
VERSION 1.0 CLASS
BEGIN
MultiUse = -1 'True
END
Attribute VB_Name = "Schedule"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = True
Option Explicit
Function Destinations(ByVal strFileDSN As String)
Dim objContext As ObjectContext
Set objContext = GetObjectContext
On Error GoTo ErrorHandler
Dim strSQL As String
Dim rst As New ADODB.Recordset
strSQL = "SELECT CityName from Destination ORDER BY CityName"
rst.CursorLocation = adUseServer
rst.Open strSQL, "FILEDSN=" & strFileDSN, adOpenStatic, adLockReadOnly
Set Destinations = rst
Exit Function
ErrorHandler:
If Not rst Is Nothing Then Set rst = Nothing
Set Destinations = Nothing
objContext.SetAbort
Err.Raise Err.Number, "Flight.Schedule()", Err.Description
End Function
Function CostOfFlightInMiles(ByVal strFileDSN As String, ByVal strFrom As String, ByVal strTo As String, ByVal strClass As String)
Dim objContext As ObjectContext
Set objContext = GetObjectContext
On Error GoTo ErrorHandler
Dim strSQL As String
Dim rst As New ADODB.Recordset
strSQL = "SELECT distinct MilesCostFirst, MilesCostBusiness, MilesCostCoach " & _
"FROM FlightSchedule " & _
"WHERE Origin = '" & strFrom & "' " & _
"AND Destination = '" & strTo & "'"
rst.CursorLocation = adUseServer
rst.Open strSQL, "FILEDSN=" & strFileDSN, adOpenStatic, adLockReadOnly
If strClass = "Coach" Then CostOfFlightInMiles = rst.Fields("MilesCostCoach")
If strClass = "Business" Then CostOfFlightInMiles = rst.Fields("MilesCostBusiness")
If strClass = "First" Then CostOfFlightInMiles = rst.Fields("MilesCostFirst")
objContext.SetComplete
Exit Function
ErrorHandler:
If Not rst Is Nothing Then Set rst = Nothing
CostOfFlightInMiles = -1
objContext.SetAbort
Err.Raise Err.Number, "Flight.CostOfFlightInMiles()", Err.Description
End Function
Function FlightNumber(ByVal strFileDSN As String, ByVal strFrom As String, _
ByVal strTo As String)
Dim objContext As ObjectContext
Set objContext = GetObjectContext
On Error GoTo ErrorHandler
Dim strSQL As String
Dim rst As New ADODB.Recordset
strSQL = "SELECT distinct FlightNo " & _
"FROM FlightSchedule " & _
"WHERE Origin = '" & strFrom & "' " & _
"AND Destination = '" & strTo & "'"
rst.CursorLocation = adUseServer
rst.Open strSQL, "FILEDSN=" & strFileDSN, adOpenStatic, adLockReadOnly
FlightNumber = rst.Fields("FlightNo")
objContext.SetComplete
Exit Function
ErrorHandler:
If Not rst Is Nothing Then Set rst = Nothing
FlightNumber = -1
objContext.SetAbort
Err.Raise Err.Number, "Flight.FlightNumber()", Err.Description
End Function
Function BookFlight(ByVal strFileDSN As String, ByVal lngMemberID As Long, _
ByVal lngFlightNo As Long, ByVal datFlightDate As Date, _
ByVal lngMiles As Long, ByVal lngMilesLeft As Long, _
ByVal strClass As String)
Dim objContext As ObjectContext
Set objContext = GetObjectContext
On Error GoTo ErrorHandler
BookFlight = True
Dim strSQL As String
Dim cnn As New ADODB.Connection
cnn.Open "FILEDSN=" & strFileDSN
strSQL = "UPDATE Member " & _
"SET Mileage=" & lngMilesLeft & _
"WHERE AccountID=" & lngMemberID
cnn.Execute strSQL
Dim strTranType As String, lngCompanyId As Long, lngMilesSubtract As Long, _
lngSpecialId As Long, strComment As String
strTranType = "USE"
lngCompanyId = 1
lngMilesSubtract = (lngMiles * -1)
lngSpecialId = 1
strComment = "Free Flight!"
strSQL = "INSERT INTO Transactions " & _
"(AccountID, TranType, " & _
"FlightNo, FlightDate, " & _
"CompanyId, Miles, " & _
"SpecialId, Comment) " & _
"VALUES (" & _
lngMemberID & ", " & _
"'" & strTranType & "', " & _
lngFlightNo & ", " & _
"'" & datFlightDate & "', " & _
lngCompanyId & ", " & _
lngMilesSubtract & ", " & _
lngSpecialId & ", " & _
"'" & strComment & "'" & _
")"
cnn.Execute strSQL
objContext.SetComplete
Exit Function
ErrorHandler:
If Not cnn Is Nothing Then Set cnn = Nothing
BookFlight = False
objContext.SetAbort
Err.Raise Err.Number, "Flight.BookFlight()", Err.Description
End Function