我和你联系是因为我在为Access程序编写模块时遇到了麻烦。
简介
我有4张桌子:产品,食谱,Ordonnancement&命令。 Ordonnancement和Commands具有相同的结构,第二个是通过receipes处理命令的结果。
VBA模块的目标:
我创建了一个模块,通过在配方中处理命令,为Ordonnancement表创建记录。详细地说,我使用递归函数来处理recipes的变量深度,这允许我遍历Receipes表并在所有产品中生成一个日期的需求。
说明:
- 我通常在C#中使用EF来处理数据库。在几次尝试直接使用Access的RecordSet可能性之后,我决定为ReceipeLign和OrdoLign生成POCO类,在这些对象的集合中存储表的数据,使用它们然后提交到Access表,向每个对象添加记录记录集。
- 我用法语工作,所以我翻译了一些东西,以便每个人都能理解。它可能不完美,如果不清楚,请告诉我。
代码:
Option Compare Database
Option Explicit
Dim cnc As New ADODB.Connection
Dim CRecordSet As New ADODB.Recordset
Dim FTRecordSet As New ADODB.Recordset
Dim ORecordSet As New ADODB.Recordset
Public Sub GenerateOrdonnancement()
'Retrieving info from tables Commandes & FT in RecordSets.
Set cnc = CurrentProject.Connection
Set CRecordSet = cnc.Execute("SELECT * FROM Commandes")
Set FTRecordSet = cnc.Execute("SELECT * FROM FichesTechniques")
Set ORecordSet = cnc.Execute("SELECT * FROM Ordonnancement")
'Creation of the list to receive data from the tables
Dim Commandes As New Collection
Dim FicheTechniques As New Collection
'Retrieving commands and receipes
Dim Commande As ligneOrdo
Dim ordo As ligneOrdo
Dim FT As ligneFT
Do Until CRecordSet.EOF
Set Commande = New ligneOrdo
Commande.DateCommande = CRecordSet("dateCommande").Value
Commande.Produit = CRecordSet("Produit").Value
Commande.Quantite = CRecordSet("quantite").Value
Commandes.Add Commande
CRecordSet.MoveNext
Loop
CRecordSet.Close
Do Until FTRecordSet.EOF
Set FT = New ligneFT
FT.Nom = FTRecordSet("Nom").Value
FT.Ingredient = FTRecordSet("Ingredient").Value
FT.Quantite = FTRecordSet("quantité").Value
FT.IsComposed = FTRecordSet("Composé").Value
FicheTechniques.Add FT
FTRecordSet.MoveNext
Loop
FTRecordSet.Close
'creation of the collection of ordo
'Later: versionning of the Ordonnancements
Dim AProduire As New Collection
Dim mr As ligneOrdo
For Each mr In Commandes
Dim coll As Collection
Set coll = CreateOrdoLigne(mr, FicheTechniques)
Dim item As New ligneOrdo
For Each item In coll
AProduire.Add item
Next item
Next mr
'Adding and saving the coll AProduire in the RecordSetO
cnc.BeginTrans
Dim item2 As ligneOrdo
For Each item2 In AProduire
ORecordSet.AddNew
ORecordSet("DateCommande").Value = item2.DateCommande
ORecordSet("Produit").Value = item2.Produit
ORecordSet("Quantite").Value = item2.Quantite
ORecordSet.Update
Next item2
ORecordSet.Close
cnc.CommitTrans
End Sub
Function CreateOrdoLigne(ligne As ligneOrdo, FT As Collection) As Collection
Dim ordo As New Collection
Dim ligneFT As Variant
'Loop through the receipes
For Each ligneFT In FT
If ligneFT.Nom = ligne.Produit Then
Dim AProduire As New ligneOrdo
AProduire.Produit = ligneFT.Ingredient
AProduire.DateCommande = ligne.DateCommande
AProduire.Quantite = ligne.Quantite * ligneFT.Quantite
ordo.Add AProduire
If ligneFT.IsComposed = True Then
Dim ordoList2 As New Collection
Set ordoList2 = CreateOrdoLigne(AProduire, FT)
Dim recordOrdo As ligneOrdo
For Each recordOrdo In ordoList2
ordo.Add recordOrdo
Next recordOrdo
Set ordoList2 = Nothing
End If
Set AProduire = Nothing
End If
Next ligneFT
Set CreateOrdoLigne = ordo
End Function
问题陈述:
运行模块,我得到一个运行时错误28:"堆栈空间",这似乎是在一些研究在如此紧密的环境中使用递归函数的常见事情。问题是,我无法真正优化流程。我正在寻找绕过这个错误或想法的直接方法,以另一种方式解决这个问题。
谢谢大家,