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Parent table name
Message
From
19/11/2007 07:41:45
Cetin Basoz
Engineerica Inc.
Izmir, Turkey
 
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
01269840
Message ID:
01269855
Views:
9
>hi,
>how can i find parent table in relation tables.
>
>Set Relation to AccountID Into AccountType In Accounts
>
>Accounts
>-----AccountType
>
>I know accounttype table name, I Want find "Accounts" table name.
>
>thanks for your helps

Özgür,
A child table legally can have multiple parents:
loParents = FindParents("AccountType")
For ix = 1 To loParents.Parents
  ? loParents.aParent[m.ix].ParentAlias, loParents.aParent[m.ix].RelationalExpr
Endfor

Function FindParents(tcChild)
  Local Array aTables[1]
  Local ix,jx, oParentInfo, lnParents
  oParentInfo = Createobject('Empty')
  AddProperty(oParentInfo,'Parents',0)
  AddProperty(oParentInfo,'aParent[32767]')
  For ix=1 To Aused(aTables)
    For jx=1 To 32767
      If Empty(Relation(m.jx,aTables[m.ix,1]))
        Exit
      Endif
      If Target(m.jx,aTables[m.ix,1]) == Upper(m.tcChild)
        oParentInfo.Parents = oParentInfo.Parents + 1
        oParentInfo.aParent[oParentInfo.Parents] = Createobject('Empty')
        AddProperty(oParentInfo.aParent[oParentInfo.Parents],;
          'ParentAlias',aTables[m.ix,1])
        AddProperty(oParentInfo.aParent[oParentInfo.Parents],;
          'RelationalExpr',Relation(m.jx,aTables[m.ix,1]))
      Endif
    Endfor
  Endfor
  Dimension oParentInfo.aParent[MAX(oParentInfo.Parents,1)]
  Return oParentInfo
Endfunc
Cetin
Çetin Basöz

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