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willichan

Excel Links Mapper

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willichan

Here is another one from my archives that filled a specific need.
 

Here is the back story if you are interested.

Spoiler

 

I was getting constant calls from one department, complaining about how long it took (over 5 minutes at times) for their Excel files to open.

On investigating, I found that every month, they created a new file that linked back to the previous month's, as well as the previous year's files.  Often linking also to files that were missing (or renamed).

No matter how much I explained the need to break the links to old files that are no longer changing, they just didn't get it, and continued to complain that IT was not fixing the "network problems causing their files to open slow".

I finally broke down and wrote this script to create a visual map of their most recent file.  It took me almost a full day to print the massive graph and tape the sheets into a continuous scroll.  I then called a meeting with the supervisors, managers and the senior manager of that department.  As soon a the meeting started, I asked them all to step out into the hallway where, holding one end of the scroll, I threw the scroll down the hallway.  It didn't even unroll all the way, but the unrolled portion "thunked" against the far wall.  I then pointed at the map of this ONE Excel file and all of its links, and told them that this was their problem.  We didn't even walk back into the conference room.  Their senior manager looked at me and said, "I don't care what any one else here tells you.  Please go ahead and break ALL of the links.  If they need to reference the older data, they can copy and paste it."

 

 

Keep in mind that I wrote this script over 3 years ago, so it may not compile or run directly without some minor tweaks.  It also requires the use of GraphViz to build the graph.

#cs ----------------------------------------------------------------------------

    Project Name: ExcelLinksMapper
    Description: Analyse an Excel file's links and map them out.
    Creation Date: 9/26/2014
    AutoIt Version:
    Author: willichan
    Requires: Graphviz (http://graphviz.org/)

#ce ----------------------------------------------------------------------------

Opt("MustDeclareVars", 1)        ;0=no, 1=require pre-declare
Opt("TrayAutoPause",   0)        ;0=no pause, 1=Pause
Opt("TrayMenuMode",    0)        ;0=append, 1=no default menu, 2=no automatic check, 4=menuitemID  not return
Opt("TrayIconHide",    0)        ;0=show, 1=hide tray icon

Global Const $MyName=StringLeft(@ScriptName, StringInStr(@ScriptName,".", 0, -1)-1) ;get just the name portion of the script/exe name
Global Const $MyMutex=$MyName & "-82243BEBC30533A3" ;name the mutex for this app
Global $SQLloaded = False
Global $sDbName = @ScriptDir & "\db2gv.db"
ConsoleWrite($sDbName & @crlf)
If _MutexExists($MyMutex) Then Exit

#include <SQLite.au3>
#include <SQLite.dll.au3>
#include <file.au3>
#include <array.au3>
#include <excel.au3>


_ConfigInitialize()
_Main()


Func _ConfigInitialize()
    OnAutoItExitRegister("_ConfigDestroy")
    ;initializers here
    Global $sSQliteDll = _SQLite_Startup()
    If @error Then MsgBox(0, "SQLite Error", "could not load the DLL")
    Global $sSQLiteDB = _SQLite_Open($sDbName)
    If $sSQLiteDB = 0 Then MsgBox(0, "SQLite Error", "could not open the database")
    $SQLloaded =True
    __CreateTables()
EndFunc  ;==>_ConfigInitialize

Func _ConfigDestroy()
    ;destructors here
    If $SQLloaded Then
        _SQLite_Close()
        _SQLite_Shutdown()
    EndIf
EndFunc  ;==>_ConfigDestroy

Func _MutexExists($sOccurenceName)
    Local $ERROR_ALREADY_EXISTS = 183, $handle, $lastError
    $sOccurenceName = StringReplace($sOccurenceName, "\", "")
    $handle = DllCall("kernel32.dll", "int", "CreateMutex", "int", 0, "long", 1, "str", $sOccurenceName)
    $lastError = DllCall("kernel32.dll", "int", "GetLastError")
    Return $lastError[0] = $ERROR_ALREADY_EXISTS
EndFunc  ;==>_MutexExists


Func __CreateTables()
    _SQLite_Exec($sSQLiteDB, "DROP TABLE IF EXISTS nodes;")
    _SQLite_Exec($sSQLiteDB, "CREATE TABLE IF NOT EXISTS nodes( name TEXT PRIMARY KEY, fileexists INTEGER);")
    _SQLite_Exec($sSQLiteDB, "DROP TABLE IF EXISTS links;")
    _SQLite_Exec($sSQLiteDB, "CREATE TABLE IF NOT EXISTS links( id INTEGER PRIMARY KEY, name1 TEXT, name2 TEXT, weight INTEGER);")
EndFunc

Func _Main()
    Local $sInfile, $vResult, $iErrLoop

    $sInfile = FileOpenDialog("Source File", @WorkingDir, "Excel files (*.xl*)", 1 + 2)
    If Not FileExists($sInfile) Then
        MsgBox(0, "Excel Links Mapper Error", "Unable to locate source file")
        Exit
    EndIf

    $vResult = $SQLITE_IOERR
    $iErrLoop = 5
    While $vResult = $SQLITE_IOERR
        $vResult = _SQLite_Exec($sSQLiteDB, "INSERT OR IGNORE INTO nodes ('name', 'fileexists') VALUES (" & _SQLite_FastEscape($sInfile) & ", 1);")
        If Not $vResult = $SQLITE_OK Then Sleep(100)
        $iErrLoop -= 1
        If $iErrLoop = 0 Then
            ConsoleWrite($iErrLoop & " tries" & @CRLF & $sInfile & @CRLF)
            $vResult = $SQLITE_OK
        EndIf
    WEnd
    _GetExcelLinks($sInfile)

    Global $hOutfile = FileOpen(@ScriptDir & "\" & $MyName & ".gv", 2)
    If $hOutfile = -1 Then
        MsgBox(0, $MyName & " ERROR", "Unable to upen file for output")
        Exit
    EndIf
    _WriteHeader()
    _WriteNodes()
    _WriteLinks()
    _WriteFooter()
    FileClose($hOutfile)
    _GenerateGraph()
    ShellExecute(@ScriptDir & '\ExcelLinksMapper.png')
EndFunc   ;==>_Main

Func _GetExcelLinks($strFileName)
    Local $hQuery, $aCount, $iErrLoop, $vResult
    ConsoleWrite($strFileName & @CRLF)
    Local $iLoop, $iExists
    Local $aLinks
    Local Const $xlExcelLinks = 1
    Local $oExcel = _Excel_Open()

    Local $ret = _Excel_BookOpen_NoUpdate($oExcel, $strFileName, True, True)
    Local $err = @error
    If $err Then
        If Not IsObj($oExcel) Then
            ConsoleWrite($ret & " - " & $err & @CRLF)
            Exit
        EndIf
    EndIf
    $aLinks = $oExcel.ActiveWorkbook.LinkSources($xlExcelLinks)
    _Excel_BookClose($oExcel, False)
    _Excel_Close($oExcel, False, True)
    If IsArray($aLinks) Then
        If UBound($aLinks) > 0 Then
            For $iLoop = 0 To UBound($aLinks) - 1
                If $aLinks[$iLoop] <> $strFileName Then
                    $iExists = FileExists($aLinks[$iLoop])
                    ConsoleWrite("DEBUG - Calling WriteNode()")
                    __WriteNode($aLinks[$iLoop], $iExists)
                    ConsoleWrite("DEBUG - Calling WriteLink()")
                    __WriteLink($strFileName, $aLinks[$iLoop])
                    If $iExists And ($aLinks[$iLoop] <> $strFileName) Then _GetExcelLinks($aLinks[$iLoop])
                EndIf
            Next
        EndIf
    EndIf
EndFunc   ;==>_GetExcelLinks

Func __WriteNode($sName, $iExists)
    Local $iErrLoop = 5 ;Number of attempts to make
    Local $vResult
    Do
        ConsoleWrite("DEBUG - WriteNode()" & @CRLF & "    _SQLite_Exec(INSERT OR IGNORE INTO nodes ('name', 'fileexists') VALUES (" & _SQLite_FastEscape($sName) & ", " & $iExists & ");) - create node entry" & @CRLF)
        $vResult = _SQLite_Exec($sSQLiteDB, "INSERT OR IGNORE INTO nodes ('name', 'fileexists') VALUES (" & _SQLite_FastEscape($sName) & ", " & $iExists & ");")
        If Not $vResult = $SQLITE_OK Then Sleep(100)
        $iErrLoop -= 1
        If $iErrLoop = 0 Then $vResult = $SQLITE_OK ;Used up all our attempts, so simulate a success
    Until $vResult = $SQLITE_OK
EndFunc   ;==>__WriteNode

Func __WriteLink($sName1, $sName2)
    Local $iErrLoop = 5 ;Number of attempts to make
    Local $vResult, $hQuery, $vCount
        ConsoleWrite("DEBUG - WriteNode()" & @CRLF & "    _SQLite_Query(SELECT weight FROM links WHERE 'name1'=" & _SQLite_FastEscape($sName1) & " AND 'name2'=" & _SQLite_FastEscape($sName2) & ";) - lookup link entry" & @CRLF)
    _SQLite_Query($sSQLiteDB, "SELECT weight FROM links WHERE 'name1'=" & _SQLite_FastEscape($sName1) & " AND 'name2'=" & _SQLite_FastEscape($sName2) & ";", $hQuery)
      ConsoleWrite("DEBUG - _SQLite_FetchData()" & @CRLF)
    _SQLite_FetchData($hQuery, $vCount)
    If UBound($vCount) > 1 Then _ArrayDisplay($vCount)
    If $SQLITE_OK And UBound($vCount) > 1 Then
        $vCount = $vCount[1] + 1
    Else
        $vCount = 1
    EndIf
    Do
        If $vCount = 1 Then
            ConsoleWrite("DEBUG - _SQLite_Exec() - create link entry" & @CRLF)
            $vResult = _SQLite_Exec($sSQLiteDB, "INSERT INTO links ('name1', 'name2', 'weight') VALUES (" & _SQLite_FastEscape($sName1) & ", " & _SQLite_FastEscape($sName2) & ", " & $vCount & ");")
        Else
            ConsoleWrite("DEBUG - _SQLite_Exec() - update link entry" & @CRLF)
            $vResult = _SQLite_Exec($sSQLiteDB, "UPDATE links SET 'weight'=" & $vCount & " WHERE 'name1'=" & _SQLite_FastEscape($sName1) & " AND 'name2=" & _SQLite_FastEscape($sName2) & ";")
        EndIf
        If Not $vResult = $SQLITE_OK Then Sleep(100)
        $iErrLoop -= 1
        If $iErrLoop = 0 Then $vResult = $SQLITE_OK ;Used up all our attempts, so simulate a success
    Until $vResult = $SQLITE_OK
EndFunc   ;==>__WriteLink

; #FUNCTION# ====================================================================================================================
; Author ........: SEO <locodarwin at yahoo dot com>
; Modified.......: litlmike, water, GMK, willichan
; ===============================================================================================================================
Func _Excel_BookOpen_NoUpdate($oExcel, $sFilePath, $bReadOnly = Default, $bVisible = Default, $sPassword = Default, $sWritePassword = Default)
    If Not IsObj($oExcel) Or ObjName($oExcel, 1) <> "_Application" Then Return SetError(1, @error, 0)
    If Not FileExists($sFilePath) Then Return SetError(2, 0, 0)
    If $bReadOnly = Default Then $bReadOnly = False
    If $bVisible = Default Then $bVisible = True
    ;; changing the second parameter on the following line to a 0 tells Excel not to update any links.
    Local $oWorkbook = $oExcel.Workbooks.Open($sFilePath, 0, $bReadOnly, Default, $sPassword, $sWritePassword)
    If @error Then Return SetError(3, @error, 0)
    $oExcel.Windows($oWorkbook.Name).Visible = $bVisible
    ; If a read-write workbook was opened read-only then return an error
    If $bReadOnly = False And $oWorkbook.Readonly = True Then Return SetError(4, 0, $oWorkbook)
    Return $oWorkbook
EndFunc   ;==>_Excel_BookOpen_NoUpdate

Func _GenerateGraph()
    RunWait(@ScriptDir & '\GraphViz238\bin\dot.exe -Tpng "' & @ScriptDir & '\' & $MyName & '.gv" -o "' & @ScriptDir & '\ExcelLinksMapper.png"')
EndFunc   ;==>_GenerateGraph

Func _WriteHeader()
    __OutLine(0, "digraph main {")
EndFunc   ;==>_WriteHeader

Func _WriteNodes()
    Local $aResult, $iRows, $iColumns, $iRval
    Local $iLoop, $sStyle
    __OutLine(1, "// Nodes")
    $iRval = _SQLite_GetTable($sSQLiteDB, "SELECT name, fileexists FROM nodes;", $aResult, $iRows, $iColumns)
    If @error Then ConsoleWrite("_WriteNodes()" & @CRLF & "_SQLite_GetTable")
    If $iRval = $SQLITE_OK Then
        For $iLoop = 1 To $iRows
            If $aResult[($iLoop * 2) + 2] > 0 Then
                $sStyle = "normal"
            Else
                $sStyle = "missing"
            EndIf
            __OutNode($aResult[1 + (2 * $iLoop)], $sStyle)
            ;;
        Next
    Else
        MsgBox($MB_SYSTEMMODAL, "SQLite Error: " & $iRval, _SQLite_ErrMsg() & @CRLF & "in _WriteNotes() calling _SQLite_GetTable()")
        Exit
    EndIf
EndFunc   ;==>_WriteNodes

Func __OutNode($sName, $sStyle = Default)
    If $sStyle = Default Then $sStyle = "Normal"
    Switch StringLower($sStyle)
        Case "missing"
            __OutLine(1, __MakeName($sName) & ' [label="' & StringReplace($sName, "\", "\\") & '",color=red,fontcolor=red,shape=octagon];')
        Case Else ;"normal", Default
            __OutLine(1, __MakeName($sName) & ' [label="' & StringReplace($sName, "\", "\\") & '",color=black,fontcolor=black,shape=box];')
    EndSwitch
EndFunc   ;==>__OutNode

Func _WriteLinks()
    Local $aResult, $iRows, $iColumns, $iRval
    Local $iLoop, $sStyle, $aCount
    __OutLine(1, "// Links")
    $iRval = _SQLite_GetTable($sSQLiteDB, "SELECT name1, name2 FROM links ORDER BY name1 ASC, name2 ASC;", $aResult, $iRows, $iColumns)
    If $iRval = $SQLITE_OK Then
        For $iLoop = 1 To $iRows
            __OutLink($aResult[1 + (2 * $iLoop)], $aResult[2 + (2 * $iLoop)])
        Next
    Else
        MsgBox($MB_SYSTEMMODAL, "SQLite Error: " & $iRval, _SQLite_ErrMsg())
        Exit
    EndIf
EndFunc   ;==>_WriteLinks

Func __OutLink($sName1, $sName2, $iWeight = 1)
    __OutLine(1, __MakeName($sName1) & ' -> ' & __MakeName($sName2) & ';')
EndFunc   ;==>__OutLink

Func _WriteFooter()
    __OutLine(0, "}")
EndFunc   ;==>_WriteFooter

Func __OutLine($iTabs, $sText)
    Local $iLoop
    If $iTabs > 0 Then
        For $iLoop = 1 To $iTabs
            FileWrite($hOutfile, "  ")
            ;ConsoleWrite("  ")
        Next
    EndIf
    FileWriteLine($hOutfile, $sText)
EndFunc   ;==>__OutLine

Func __MakeName($sText)
    Local $sNewName = StringReplace($sText, "\", " ")
    $sNewName = StringReplace($sNewName, "/", " ")
    $sNewName = StringReplace($sNewName, "'", " ")
    $sNewName = StringReplace($sNewName, '"', " ")
    $sNewName = StringReplace($sNewName, ':', " ")
    $sNewName = StringReplace($sNewName, '.', " ")
    $sNewName = StringReplace($sNewName, '-', " ")
    $sNewName = StringReplace($sNewName, '$', " ")
    $sNewName = StringStripWS($sNewName, 8)
    Return StringLower($sNewName)
EndFunc   ;==>__MakeName

 

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