Monday, February 9, 2015

Use PowerShell to Delete SharePoint List Items Based on Parameters From an External File

Below is a PS script I wrote to take parameters from a .csv file, find matching SharePoint list items based on 2 parameters, and delete that list item. I am also writing to another external .txt file the parameters of any list items that were missed so I can investigate why there was no match (internal administration).

#Import the csv file that holds the parameters we need to filter the SharePoint
$csv = Import-Csv d:\temp\importfilename.csv

#An error file - Clear this file in case anything was there from a previous run Clear-Content d:\temp\checkTheseFailedDeletes.txt

#Get the SharePoint web(site)
$web = Get-SPWeb http://sharepointsite

#Get the SharePoint list
$list = $web.Lists["Your List Name Here"]

$itemsTotal = 0
$count = 0

#Loop through each row of the input .csv file
foreach ($rox in $csv)
     #Assign each column's value to a variable
     $thisParam1 = $row.Param1ColumnFromCSV
     $thisParam2 = $row.Param2ColumnFromCSV

     #Build the CAML query and execute it on the list
     $query = New-Object Microsoft.SharePoint.SPQuery
     $query.ViewAttributes = "Scope='Recursive'"
     $caml = "$thisParam1$thisParam2"
     $query.Query = $caml
     $items = $list.GetItems($query)

     #Delete the item from the list if found
     if ($items.Count -gt 0)
          $items | % { list.GetItemById($_.Id).Delete() }
          $caml = ""
     #Write records that were not found in the list to a text file to manually check if necessary
          $caml = ""
          $writeString = $thisParam1 + ", " + $thisParam2
          Add-Content d:\temp\checkTheseFailedDeletes.txt $writeString

Write-Host $itemsTotal "records processed ===> " $count "records deleted"

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