clsmembershop.cls

VB数据库设计的代码。需要根据自己的数据库再作调整

VERSION 1.0 CLASS
BEGIN
  MultiUse = -1  'True
  Persistable = 0  'NotPersistable
  DataBindingBehavior = 0  'vbNone
  DataSourceBehavior  = 0  'vbNone
  MTSTransactionMode  = 0  'NotAnMTSObject
END
Attribute VB_Name = "clsMembershop"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = True
Attribute VB_Ext_KEY = "SavedWithClassBuilder6" ,"Yes"
Attribute VB_Ext_KEY = "Top_Level" ,"Yes"
Option Explicit

'保持属性值的局部变量
Private mvarshopId As Integer '局部复制
Private mvarshopName As String '局部复制
Private mvaraddress As String '局部复制
Private mvarleader As String '局部复制
Private mvarphone As String '局部复制
Private mvarremark As String '局部复制
Public Property Let remark(ByVal vData As String)
'向属性指派值时使用，位于赋值语句的左边。
'Syntax: X.remark = 5
    mvarremark = vData
End Property


Public Property Get remark() As String
'检索属性值时使用，位于赋值语句的右边。
'Syntax: Debug.Print X.remark
    remark = mvarremark
End Property



Public Property Let phone(ByVal vData As String)
'向属性指派值时使用，位于赋值语句的左边。
'Syntax: X.phone = 5
    mvarphone = vData
End Property


Public Property Get phone() As String
'检索属性值时使用，位于赋值语句的右边。
'Syntax: Debug.Print X.phone
    phone = mvarphone
End Property



Public Property Let leader(ByVal vData As String)
'向属性指派值时使用，位于赋值语句的左边。
'Syntax: X.leader = 5
    mvarleader = vData
End Property


Public Property Get leader() As String
'检索属性值时使用，位于赋值语句的右边。
'Syntax: Debug.Print X.leader
    leader = mvarleader
End Property



Public Property Let address(ByVal vData As String)
'向属性指派值时使用，位于赋值语句的左边。
'Syntax: X.address = 5
    mvaraddress = vData
End Property


Public Property Get address() As String
'检索属性值时使用，位于赋值语句的右边。
'Syntax: Debug.Print X.address
    address = mvaraddress
End Property



Public Property Let shopName(ByVal vData As String)
'向属性指派值时使用，位于赋值语句的左边。
'Syntax: X.shopName = 5
    mvarshopName = vData
End Property


Public Property Get shopName() As String
'检索属性值时使用，位于赋值语句的右边。
'Syntax: Debug.Print X.shopName
    shopName = mvarshopName
End Property



Public Property Let shopId(ByVal vData As Integer)
'向属性指派值时使用，位于赋值语句的左边。
'Syntax: X.shopId = 5
    mvarshopId = vData
End Property


Public Property Get shopId() As Integer
'检索属性值时使用，位于赋值语句的右边。
'Syntax: Debug.Print X.shopId
    shopId = mvarshopId
End Property

'***********************************************************************
'* 函数名：ShopNameIsExist
'* 功  能：当前店名是否已存在于数据库中
'* 参  数：
'* 返回值：Boolean                  True 存在 False 不存在或数据查询错误
'* 版  本：2006.01.01 颜志军 初版
'***********************************************************************
Private Function ShopNameIsExist() As Boolean
    '变量定义
    Dim sql As String           'SQL
    Dim rs As ADODB.Recordset   '记录集
    
    '生成查询SQL
    sql = "SELECT * FROM membershop WHERE shopName = '" & shopName & _
        "' AND shopId != " & CStr(shopId)
    
    '执行查询
    ShopNameIsExist = False
    On Error GoTo FUNEND
    Set rs = g_conn.Execute(sql)
    If Not rs.EOF Then
        ShopNameIsExist = True
    End If
    rs.Close
    Set rs = Nothing
FUNEND:
End Function

'***********************************************************************
'* 函数名：ShopIdIsExist
'* 功  能：当前店ID是否已存在于数据库中
'* 参  数：
'* 返回值：Boolean                  True 存在 False 不存在或数据查询错误
'* 版  本：2006.01.01 颜志军 初版
'***********************************************************************
Private Function ShopIdIsExist() As Boolean
    '变量定义
    Dim sql As String           'SQL
    Dim rs As ADODB.Recordset   '记录集
    
    '生成查询SQL
    sql = "SELECT * FROM membershop WHERE shopId = " & CStr(shopId)
    
    '执行查询
    ShopIdIsExist = False
    On Error GoTo FUNEND
    Set rs = g_conn.Execute(sql)
    If Not rs.EOF Then
        ShopIdIsExist = True
    End If
    rs.Close
    Set rs = Nothing
FUNEND:
End Function

'***********************************************************************
'* 函数名：AppendNew
'* 功  能：追加当前连锁店信息到数据库
'* 参  数：
'* 返回值：DbOpResult                   数据库操作结果
'* 版  本：2006.01.01 颜志军 初版
'***********************************************************************
Public Function AppendNew() As DbOpResult
    '变量定义
    Dim sql As String       'SQL
    Dim affectLines As Long '影响行数
    
    '检查店名是否已存在
    If ShopNameIsExist() Then
        AppendNew = DbOpRecExist
        Exit Function
    End If
    
    '生成SQL
    sql = "INSERT INTO membershop(shopName, address, leader, phone, remark) VALUES('" & _
        shopName & "','" & address & "','" & leader & "','" & phone & "','" & remark & "')"
        
    '执行插入
    AppendNew = DbOpNG
    On Error Resume Next
    g_conn.Execute sql, affectLines
    If affectLines = 1 Then
        AppendNew = DbOpOk
    End If
End Function

'***********************************************************************
'* 函数名：Update
'* 功  能：更新当前连锁店信息到数据库
'* 参  数：
'* 返回值：DbOpResult                   数据库操作结果
'* 版  本：2006.01.01 颜志军 初版
'***********************************************************************
Public Function Update() As DbOpResult
    '变量定义
    Dim sql As String       'SQL
    Dim affectLines As Long '影响行数
    
    
    '检查当前店名是否存在
    If ShopNameIsExist() Then
        Update = DbOpRecExist
        Exit Function
    End If
    
    '检查当前店ID是否存在
    If Not ShopIdIsExist() Then
        Update = DbOpRecNoExist
        Exit Function
    End If
    
    '生成SQL
    sql = "UPDATE membershop SET shopName = '" & shopName & "'"
    sql = sql & ", address = '" & address & "'"
    sql = sql & ", leader = '" & leader & "'"
    sql = sql & ", phone = '" & phone & "'"
    sql = sql & ", remark = '" & remark & "'"
    sql = sql & " WHERE shopId =" & CStr(shopId)
        
    '执行更新
    Update = DbOpNG
    On Error Resume Next
    g_conn.Execute sql, affectLines
    If affectLines = 1 Then
        Update = DbOpOk
    End If
End Function

'***********************************************************************
'* 函数名：LoadByShopId
'* 功  能：从数据库中载入指定连锁店信息
'* 参  数：Integer                      店ID
'* 返回值：DbOpResult                   数据库操作结果
'* 版  本：2006.01.02 颜志军 初版
'***********************************************************************
Public Function LoadByShopId(ByVal curShopId As Integer) As DbOpResult
    '变量定义
    Dim sql As String           'SQL
    Dim rs As ADODB.Recordset   '记录集
    
    '生成查询SQL
    sql = "SELECT * FROM membershop WHERE shopId = " & CStr(curShopId)
    
    '执行查询
    LoadByShopId = DbOpNG
    On Error Resume Next
    Set rs = g_conn.Execute(sql)
    If Not rs.EOF Then
        Me.shopId = rs("shopId")
        Me.shopName = rs("shopName")
        Me.address = rs("address")
        Me.leader = rs("leader")
        Me.phone = rs("phone")
        Me.remark = rs("remark")
        LoadByShopId = DbOpRecExist
    Else
        LoadByShopId = DbOpRecNoExist
    End If
    rs.Close
    Set rs = Nothing
End Function

'***********************************************************************
'* 函数名：Delete
'* 功  能：从数据库中删除当前连锁店
'* 参  数：
'* 返回值：DbOpResult                   数据库操作结果
'* 版  本：2006.01.02 颜志军 初版
'***********************************************************************
Public Function Delete() As DbOpResult
    '总公司不可删除
    If shopId = 1 Then
        Delete = DbOpOnlyRec
        Exit Function
    End If

    '变量定义
    Dim sql As String       'SQL
    Dim affectLines As Long '影响行数
    
    '生成SQL
    sql = "DELETE FROM membershop WHERE shopId = " & CStr(shopId)
        
    '执行删除
    Delete = DbOpNG
    On Error Resume Next
    g_conn.Execute sql, affectLines
    If affectLines = 1 Then
        Delete = DbOpOk
    End If
End Function