在 powershell 中使用 ref 到函数中的 return 值
Using ref in powershell to return values from function
我有函数 DoWork 创建一个对象并将其保存在 $AllMailboxes
变量中。然后在该函数中我执行另一个函数 ProcessEmail,它应该从 $AllMailboxes
中取出 $Mailbox
并通过 ref 变量,向其添加几个字段并更新 $AllMailboxes
或创建新的 $collection
然后保存所有带有更新字段的 $Mailbox
$collection = @()
function DoWork() {
Get-User -ResultSize Unlimited | Where { $_.RecipientType -eq 'UserMailbox' } | ForEach { $Users = @{} } { $Users[$_.SamAccountName] = $_ }
$AllMailboxes = Get-Mailbox -ResultSize Unlimited | Where { $_.RecipientTypeDetails -eq "UserMailbox" } | ForEach {
$PrimarySmtpDomain = $_.PrimarySmtpAddress.split("@")
New-Object psobject |
Add-Member -PassThru NoteProperty Alias $_.Alias |
Add-Member -PassThru NoteProperty Name $_.Name |
Add-Member -PassThru NoteProperty DisplayName $_.DisplayName
Add-Member -PassThru NoteProperty .... other values
foreach ($mailbox in $allmailboxes) {
$FullEmail = "somestring"
ProcessEmail ([ref] $Mailbox) ($FullEmail)
}
$collection | ft # doesn't display anything
}
function ProcessEmail ([ref] $Mailbox, $FullEmail) {
$RequireAdd = $true
$addresses = $Mailbox.EmailAddresses
foreach ($address in $addresses) {
if ($address -imatch "sip:") { continue }
if ($address -ireplace("smtp:","") -ieq $FullEmail) {
$requireAdd = $false
break
}
$Mailbox | Add-Member -MemberType NoteProperty -Name NewEmailToAdd -Value $FullEmail
$Mailbox | Add-Member -MemberType NoteProperty -Name NewEmailRequiresAdding -Value $RequireAdd
$Mailbox.NewEmailToAdd # displays correctly
$Mailbox.NewEmailRequiresAdding #display correctly
$collection += $Mailbox
}
我已经尝试过使用 ref 的多个方法,没有 ref,创建单独的变量,但由于某种原因我不能让它显示 $collection 中的任何内容或以 ProcessEmail
函数之外的其他方式显示任何内容。我确定我遗漏了什么。
您似乎缺少范围。至少将其更改为脚本范围,如下所示:
$script:collection = @()
$script:collection += $Mailbox
您使用 PSReference(这需要您访问值 属性)使其变得更加复杂。到目前为止,你不需要在这里。
也几乎不需要使用该全局/脚本变量,除非可能作为来自 DoWork 的赋值,如此模型所示。
function DoWork {
foreach ($i in (1..100)) {
$psObject = [PSCustomObject]@{
Property1 = 1
Property2 = 2
}
ProcessEmail -Mailbox $psObject -FullEmail $FullEmail
$psObject
}
}
function ProcessEmail {
param(
$Mailbox,
)
$Mailbox | Add-Member NewProperty1 "one"
$Mailbox | Add-Member NewProperty2 "two"
}
$collection = DoWork
克里斯
其实我已经决定要去
function ProcessEmail ($Mailbox, $FullEmail) {
$RequireAdd = $true
$addresses = $Mailbox.EmailAddresses
foreach ($address in $addresses) {
if ($address -imatch "sip:") { continue }
if ($address -ireplace("smtp:","") -ieq $FullEmail) {
$requireAdd = $false
break
}
}
$Mailbox | Add-Member -MemberType NoteProperty -Name NewEmailToAdd -Value $FullEmail
$Mailbox | Add-Member -MemberType NoteProperty -Name NewEmailRequiresAdding -Value $RequireAdd
return ,$mailbox
}
简单地通过:
$Mailbox = ProcessEmail ($Mailbox) ($FullEmail)
$collection += $Mailbox
似乎工作正常。
我有函数 DoWork 创建一个对象并将其保存在 $AllMailboxes
变量中。然后在该函数中我执行另一个函数 ProcessEmail,它应该从 $AllMailboxes
中取出 $Mailbox
并通过 ref 变量,向其添加几个字段并更新 $AllMailboxes
或创建新的 $collection
然后保存所有带有更新字段的 $Mailbox
$collection = @()
function DoWork() {
Get-User -ResultSize Unlimited | Where { $_.RecipientType -eq 'UserMailbox' } | ForEach { $Users = @{} } { $Users[$_.SamAccountName] = $_ }
$AllMailboxes = Get-Mailbox -ResultSize Unlimited | Where { $_.RecipientTypeDetails -eq "UserMailbox" } | ForEach {
$PrimarySmtpDomain = $_.PrimarySmtpAddress.split("@")
New-Object psobject |
Add-Member -PassThru NoteProperty Alias $_.Alias |
Add-Member -PassThru NoteProperty Name $_.Name |
Add-Member -PassThru NoteProperty DisplayName $_.DisplayName
Add-Member -PassThru NoteProperty .... other values
foreach ($mailbox in $allmailboxes) {
$FullEmail = "somestring"
ProcessEmail ([ref] $Mailbox) ($FullEmail)
}
$collection | ft # doesn't display anything
}
function ProcessEmail ([ref] $Mailbox, $FullEmail) {
$RequireAdd = $true
$addresses = $Mailbox.EmailAddresses
foreach ($address in $addresses) {
if ($address -imatch "sip:") { continue }
if ($address -ireplace("smtp:","") -ieq $FullEmail) {
$requireAdd = $false
break
}
$Mailbox | Add-Member -MemberType NoteProperty -Name NewEmailToAdd -Value $FullEmail
$Mailbox | Add-Member -MemberType NoteProperty -Name NewEmailRequiresAdding -Value $RequireAdd
$Mailbox.NewEmailToAdd # displays correctly
$Mailbox.NewEmailRequiresAdding #display correctly
$collection += $Mailbox
}
我已经尝试过使用 ref 的多个方法,没有 ref,创建单独的变量,但由于某种原因我不能让它显示 $collection 中的任何内容或以 ProcessEmail
函数之外的其他方式显示任何内容。我确定我遗漏了什么。
您似乎缺少范围。至少将其更改为脚本范围,如下所示:
$script:collection = @()
$script:collection += $Mailbox
您使用 PSReference(这需要您访问值 属性)使其变得更加复杂。到目前为止,你不需要在这里。
也几乎不需要使用该全局/脚本变量,除非可能作为来自 DoWork 的赋值,如此模型所示。
function DoWork {
foreach ($i in (1..100)) {
$psObject = [PSCustomObject]@{
Property1 = 1
Property2 = 2
}
ProcessEmail -Mailbox $psObject -FullEmail $FullEmail
$psObject
}
}
function ProcessEmail {
param(
$Mailbox,
)
$Mailbox | Add-Member NewProperty1 "one"
$Mailbox | Add-Member NewProperty2 "two"
}
$collection = DoWork
克里斯
其实我已经决定要去
function ProcessEmail ($Mailbox, $FullEmail) {
$RequireAdd = $true
$addresses = $Mailbox.EmailAddresses
foreach ($address in $addresses) {
if ($address -imatch "sip:") { continue }
if ($address -ireplace("smtp:","") -ieq $FullEmail) {
$requireAdd = $false
break
}
}
$Mailbox | Add-Member -MemberType NoteProperty -Name NewEmailToAdd -Value $FullEmail
$Mailbox | Add-Member -MemberType NoteProperty -Name NewEmailRequiresAdding -Value $RequireAdd
return ,$mailbox
}
简单地通过:
$Mailbox = ProcessEmail ($Mailbox) ($FullEmail)
$collection += $Mailbox
似乎工作正常。