lhotel.cls

本系统本系统采用VB6.0+SQL2000,紧扣旅游的关键要素,进述如何对这些旅游资源进行管理,具有很强的实用性,既可以作为独立的系统使用,也可以作为旅游企业综合业务管理系统的一个重要组成部分,本系统

VERSION 1.0 CLASS
BEGIN
  MultiUse = -1  'True
  Persistable = 0  'NotPersistable
  DataBindingBehavior = 0  'vbNone
  DataSourceBehavior  = 0  'vbNone
  MTSTransactionMode  = 0  'NotAnMTSObject
END
Attribute VB_Name = "lhotel"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
'1 lid Int 线路编号
'2 hid Int 宾馆编号
'3 rType Tinyint   房间类型（1 经济间，2 双人间，3 三人间，4四人间）
'4 rdays Tinyint 住宿天数

Public lid As Long
Public hid As Long
Public rType As Integer
Public rdays As Integer

Public Sub Init()
  lid = 0
  hid = 0
  rType = 0
  rdays = 0
End Sub

'删除指定线路的所有宾馆信息
Public Sub DeleteLine(ByVal Tmplid As Long)
  DB_Connect
  
  SqlStmt = "DELETE FROM lhotel WHERE lid=" + Trim(Tmplid)
  OdbcExt (SqlStmt)
  Rc = SQLFreeStmt(Hstmt, SQL_DROP)
End Sub

'删除指定线路宾馆信息
Public Sub Delete(ByVal Tmplid As Long, _
                  ByVal TmpHid As Long, _
                  ByVal TmpType As Integer)
  DB_Connect
  
  SqlStmt = "DELETE FROM lhotel WHERE lid=" + Trim(Tmplid) _
          + " And hid=" + Trim(TmpHid) + " And rType=" _
          + Trim(TmpType)
  OdbcExt (SqlStmt)
  Rc = SQLFreeStmt(Hstmt, SQL_DROP)
End Sub

Public Function In_DB(ByVal Tmplid As Long, _
                      ByVal TmpHid As Long, _
                      ByVal TmpType As Integer) As Boolean
  DB_Connect
  
  SqlStmt = "SELECT * FROM lhotel WHERE lid=" + Trim(Tmplid) _
          + " And hid=" + Trim(TmpHid) + " And rType=" _
          + Trim(TmpType)
  OdbcExt (SqlStmt)
  If SQLFetch(Hstmt) <> SQL_NO_DATA_FOUND Then
    In_DB = True
  Else
    In_DB = False
  End If
  Rc = SQLFreeStmt(Hstmt, SQL_DROP)
  
  DB_Disconnect
End Function

Public Sub Insert()
  DB_Connect
  
  SqlStmt = "INSERT INTO lhotel VALUES(" + Trim(lid) + "," _
          + Trim(hid) + "," + Trim(rType) + "," + Trim(rdays) + ")"
  OdbcExt (SqlStmt)
  Rc = SQLFreeStmt(Hstmt, SQL_DROP)
  DB_Disconnect
End Sub

'判断指定的宾馆信息是否在线路中
Public Function HotelInLine(ByVal TmpHid As Long) As Long
  DB_Connect
  
  SqlStmt = "SELECT lid FROM lhotel WHERE hid=" _
          + Trim(TmpHid)
  OdbcExt (SqlStmt)
  If SQLFetch(Hstmt) <> SQL_NO_DATA_FOUND Then
    ColVal = String(400, 0)
    Rc = SQLGetData(Hstmt, 1, 1, ColVal, Len(ColVal), pcblen)
    HotelInLine = Val(ColVal)
  Else
    HotelInLine = 0
  End If
  Rc = SQLFreeStmt(Hstmt, SQL_DROP)
  
  DB_Disconnect
End Function

Public Function SumPrice(ByVal Tmplid As Long) As Single
  SumPrice = SumPrice1(Tmplid) + SumPrice2(Tmplid) + SumPrice3(Tmplid) + SumPrice4(Tmplid)
End Function

Public Function SumPrice1(ByVal Tmplid As Long) As Single
  DB_Connect

  SqlStmt = "SELECT Sum(h.Price1*l.rdays) FROM lhotel l, Hotel h" _
          + " WHERE l.lid=" + Trim(Tmplid) + " And l.hid=h.hid And l.rType=1"
  OdbcExt (SqlStmt)
  If SQLFetch(Hstmt) = SQL_NO_DATA_FOUND Then
    SumPrice1 = 0
  Else
    ColVal = String(40, 0)
    Rc = SQLGetData(Hstmt, 1, 1, ColVal, Len(ColVal), pcblen)
    SumPrice1 = Val(ColVal)
  End If
  Rc = SQLFreeStmt(Hstmt, SQL_DROP)

  DB_Disconnect
End Function

Public Function SumPrice2(ByVal Tmplid As Long) As Single
  DB_Connect

  SqlStmt = "SELECT Sum(h.Price2*l.rdays) FROM lhotel l, Hotel h" _
          + " WHERE l.lid=" + Trim(Tmplid) + " And l.hid=h.hid And l.rType=2"
  OdbcExt (SqlStmt)
  If SQLFetch(Hstmt) = SQL_NO_DATA_FOUND Then
    SumPrice2 = 0
  Else
    ColVal = String(40, 0)
    Rc = SQLGetData(Hstmt, 1, 1, ColVal, Len(ColVal), pcblen)
    SumPrice2 = Val(ColVal)
  End If
  Rc = SQLFreeStmt(Hstmt, SQL_DROP)

  DB_Disconnect
End Function

Public Function SumPrice3(ByVal Tmplid As Long) As Single
  DB_Connect

  SqlStmt = "SELECT Sum(h.Price3*l.rdays) FROM lhotel l, Hotel h" _
          + " WHERE l.lid=" + Trim(Tmplid) + " And l.hid=h.hid And l.rType=3"
  OdbcExt (SqlStmt)
  If SQLFetch(Hstmt) = SQL_NO_DATA_FOUND Then
    SumPrice3 = 0
  Else
    ColVal = String(40, 0)
    Rc = SQLGetData(Hstmt, 1, 1, ColVal, Len(ColVal), pcblen)
    SumPrice3 = Val(ColVal)
  End If
  Rc = SQLFreeStmt(Hstmt, SQL_DROP)

  DB_Disconnect
End Function

Public Function SumPrice4(ByVal Tmplid As Long) As Single
  DB_Connect

  SqlStmt = "SELECT Sum(h.Price4*l.rdays) FROM lhotel l, Hotel h" _
          + " WHERE l.lid=" + Trim(Tmplid) + " And l.hid=h.hid And l.rType=4"
  OdbcExt (SqlStmt)
  If SQLFetch(Hstmt) = SQL_NO_DATA_FOUND Then
    SumPrice4 = 0
  Else
    ColVal = String(40, 0)
    Rc = SQLGetData(Hstmt, 1, 1, ColVal, Len(ColVal), pcblen)
    SumPrice4 = Val(ColVal)
  End If
  Rc = SQLFreeStmt(Hstmt, SQL_DROP)

  DB_Disconnect
End Function

Public Sub Update(ByVal Orilid As Long, _
                  ByVal Orihid As Long, _
                  ByVal OriType As Long)
  DB_Connect
  SqlStmt = "UPDATE lhotel SET hid=" + Trim(hid) _
          + ", rType=" + Trim(rType) + ", rdays=" _
          + Trim(rdays) + " WHERE lid=" + Trim(Orilid) _
          + " And hid=" + Trim(Orihid) + " And rType=" _
          + Trim(OriType)
  OdbcExt (SqlStmt)
  Rc = SQLFreeStmt(Hstmt, SQL_DROP)
  DB_Disconnect
End Sub