Powershell Scripts 2

Lets see continuation of my previous PowerShell series. This time will start from the basic commands.

Load Assembly references in PowerShell
Declare Global Variables in PowerShell
Pass/Read Command Line arguments
Convert DateTime based on regional settings in PowerShell
Read RESX value in PowerShell
Perform CAML Query in PowerShell

Add SharePoint Snapin

if((Get-PSSnapin "Microsoft.SharePoint.PowerShell" -ErrorAction SilentlyContinue) -eq $null)
{
    Add-PSSnapin "Microsoft.SharePoint.PowerShell" -ErrorAction SilentlyContinue
}

Load default/custom Assembly references

[void][System.Reflection.Assembly]::LoadWithPartialName("System.Net")
[void][System.Reflection.Assembly]::LoadWithPartialName("System.IO")
[void][System.Reflection.Assembly]::LoadWithPartialName("System.Xml")
[void][System.Reflection.Assembly]::LoadWithPartialName("System.Collections.Generic")
[void][System.Reflection.Assembly]::LoadWithPartialName("System.Globalization")
[void][System.Reflection.Assembly]::LoadWithPartialName("System.Resources.ResXResourceSet")
[void][System.Reflection.Assembly]::LoadWithPartialName("MyCompany.CustomDLL")

Declare global variables

We should declare value with $global to assign value from functions
[string]$global:SmtpServer = $null

Pass Command line arguments

# PowerShell File Path
$PSPath = "C:\Rathanavel\Workouts\PS\CopyItems.ps1"

# Argument values
$Url = "https://site.domain.com/sites/sitecoll/web"
$Name = "Communications"
$Cols = "Title;Description;Editor..."
$Id = "143"

$argList = [System.String]::Format("{0} -WebUrl {1} -ListName {2} -Columns {3} -ID", $Url, $Name, $Cols, $Id)

Start-Process Powershell.exe -Argumentlist ($PSPath + "-file " + $argList)

Read Command line arguments

param (
    [string]$WebUrl,    
    [string]$ListName,
    [string]$Columns,
    [string]$ID
    
 )

 function ReadCMDLineArgValues()
 {
    Write-Host([string]::Format("Open Web: {0} and List: {1} getbyid: {2} and read these columns: {3}", $WebUrl, $ListName, $ID, $Columns))
 }

Get Publishing web

$oWeb  = Get-SPWeb "https://site.domain.com/sites/sitecoll/web"
if([Microsoft.SharePoint.Publishing.Publishingweb]::IsPublishingWeb($oWeb))                
{
    $oPubweb = [Microsoft.SharePoint.Publishing.PublishingWeb]:: GetPublishingWeb($oWeb)
    $oList = $oPubweb.PagesList
}

Read RESX file

$ApprovedText = [Microsoft.SharePoint.Utilities.SPUtility]::GetLocalizedString("`$Resources:core,402", "core", $oWeb.Language)
## Import this assembly before you begin
# [void][System.Reflection.Assembly]::LoadWithPartialName("Microsoft.ShrePoint.Utilities.SPUtility")

Convert DateTime based on regional settings

$oWeb  = Get-SPWeb "https://site.domain.com/sites/sitecoll/web"
Write-Host $oWeb.RegionalSettings.TimeZone.UTCToLocalTime((Get-Date).ToUniversalTime())

Use CAMLQuery

function QueryYesterdayItems()
{
    $oWeb  = Get-SPWeb "https://site.domain.com/sites/sitecoll/web"
    if([Microsoft.SharePoint.Publishing.Publishingweb]::IsPublishingWeb($oWeb))                
    {
        $oPubweb = [Microsoft.SharePoint.Publishing.PublishingWeb]:: GetPublishingWeb($oWeb)
        $oList = $oPubweb.PagesList
        
        $CreatedStartDate = (Get-Date).AddDays(-1).ToString("yyyy-MM-dd") + "T00:00:00Z"
        $CreatedEndDate   = (Get-Date).AddDays(-1).ToString("yyyy-MM-dd") + "T23:59:59Z"

        $CamlQuery = New-Object Microsoft.SharePoint.SPQuery
        if($oList.EnableModeratio -eq $true)
        {
            $ApprovedText = [Microsoft.SharePoint.Utilities.SPUtility]::GetLocalizedString("`$Resources:core,402", "core", $oWeb.Language)
            $CamlQuery.Query =  "<Where>
                                <And>
                                    <And>
                                        <Geq>
                                            <FieldRef Name='Created' /> 
                                            <Value Type='DateTime' IncludeTimeValue='TRUE'>$CreatedStartDate</Value>
                                        </Geq>
                                        <Leq>
                                            <FieldRef Name='Created' /> 
                                            <Value Type='DateTime' IncludeTimeValue='TRUE'>$CreatedEndDate</Value>
                                        </Leq>
                                    </And>
                                    <Eq>
                                        <FieldRef Name='_ModerationStatus' /> 
                                        <Value Type='ModStat'>$ApprovedTxt</Value>
                                    </Eq>
                                 </And>                  
                            </Where>
                            <OrderBy><FieldRef Name='Modified' Ascending='False'/></OrderBy>"
        }
        else
        {
            $CamlQuery.Query =  "<Where>
                                    <And>
                                        <Geq>
                                            <FieldRef Name='Created' /> 
                                            <Value Type='DateTime' IncludeTimeValue='TRUE'>$CreatedStartDate</Value>
                                        </Geq>
                                        <Leq>
                                            <FieldRef Name='Created' /> 
                                            <Value Type='DateTime' IncludeTimeValue='TRUE'>$CreatedEndDate</Value>
                                        </Leq>
                                    </And>                                   
                                 </Where>
                                 <OrderBy><FieldRef Name='Modified' Ascending='False'/></OrderBy>"
        }

        $CamlQuery.ViewFields = "<FieldRef Name='Title' /><FieldRef Name='Description' />..."
        $CamlQuery.ViewFieldsOnly = $true    
        $ListItemCollection = $oList.GetItems($CamlQuery)

        if($ListItemCollection -ne $null)
        {
            foreach($item in $ListItemCollection)
            {
                #your logic goes here...
            }
        }
    }
}

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