functions/SPClientListItemAttachment/Get-SPClientListItemAttachment.ps1
|
#Requires -Version 3.0 # Get-SPClientListItemAttachment.ps1 # # Copyright (c) 2017 karamem0 # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in all # copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE # SOFTWARE. function Get-SPClientListItemAttachment { <# .SYNOPSIS Gets one or more attachments. .DESCRIPTION The Get-SPClientListItemAttachment function lists all attachments or retrieves the specified attachment. If not specified filterable parameter, returns all attachments of the list item. Otherwise, returns a attachment which matches the parameter. .PARAMETER ClientContext Indicates the client context. If not specified, uses default context. .PARAMETER ParentListItem Indicates the list item which the attachments are contained. .PARAMETER FileName Indicates the attachment file name. .PARAMETER Retrievals Indicates the data retrieval expression. .EXAMPLE Get-SPClientListItemAttachment $item .EXAMPLE Get-SPClientListItemAttachment $item -FileName "CustomAttachment.xlsx" .EXAMPLE Get-SPClientListItemAttachment $item -Retrievals "FileName" #> [CmdletBinding(DefaultParameterSetName = 'All')] param ( [Parameter(Mandatory = $false, ParameterSetName = 'All')] [Parameter(Mandatory = $false, ParameterSetName = 'Name')] [Microsoft.SharePoint.Client.ClientContext] $ClientContext = $SPClient.ClientContext, [Parameter(Mandatory = $true, Position = 0, ValueFromPipeline = $true)] [Microsoft.SharePoint.Client.ListItem] $ParentListItem, [Parameter(Mandatory = $true, ParameterSetName = 'Name')] [string] $Name, [Parameter(Mandatory = $false)] [string] $Retrievals ) process { if ($ClientContext -eq $null) { throw "Cannot bind argument to parameter 'ClientContext' because it is null." } $ClientObjectCollection = $ParentListItem.AttachmentFiles if ($PSCmdlet.ParameterSetName -eq 'All') { Invoke-SPClientLoadQuery ` -ClientContext $ClientContext ` -ClientObject $ClientObjectCollection ` -Retrievals $Retrievals Write-Output @(, $ClientObjectCollection) } if ($PSCmdlet.ParameterSetName -eq 'Name') { $PathMethod = New-Object Microsoft.SharePoint.Client.ObjectPathMethod( ` $ClientContext, ` $ClientObjectCollection.Path, ` 'GetByFileName', ` [object[]]$Name) $ClientObject = New-Object Microsoft.SharePoint.Client.Attachment($ClientContext, $PathMethod) Invoke-SPClientLoadQuery ` -ClientContext $ClientContext ` -ClientObject $ClientObject ` -Retrievals $Retrievals Write-Output $ClientObject trap { throw 'The specified attachment could not be found.' } } } } |