powershell IF condition in a Variable - powershell

Question

I've been strugling on a little thing for few hours now, and I wanted to know if one of you have the solution (maybe i'm missing a little thing)
I got a switch for setting the condition in a IF but seems it doesn't interprete it as a if condiction
switch ( $CampaignStatus )
{
"Complete" { $CampainCondition = ($DateStr -eq (get-date -Format "MM/dd/yyyy")) }
"Incomplete" { $CampainCondition = ($DateStr -eq (get-date -Format "MM/dd/yyyy")) }
"InProgress" { $CampainCondition = ($DateStr -gt (get-date -Format "MM/dd/yyyy")) }
}
foreach($c in $CampaignList) {
$index = $index +1
$DateStr = ConvertToFriendlyDate -Date $c.deadline
if ($CampainCondition) { blablabla}
Any idea ?
I tried with quotes, without etc

Answer 1

You're looking for Script Blocks to store those expressions and later evaluate them:
$CampainCondition = switch ( $CampaignStatus ) {
"Complete" { { $DateStr -eq (Get-Date -Format "MM/dd/yyyy") } }
"Incomplete" { { $DateStr -eq (Get-Date -Format "MM/dd/yyyy") } }
"InProgress" { { $DateStr -gt (Get-Date -Format "MM/dd/yyyy") } }
}
Then for evaluation, you can use the call operator &:
foreach($c in $CampaignList) {
$index = $index++
$DateStr = ConvertToFriendlyDate -Date $c.deadline
if(& $CampainCondition) {
<# blablabla #>
}
<# blablabla #>
}
As for the conditions themselves, instead of converting the date into a specific format (Get-Date -Format "MM/dd/yyyy") and then comparing that string with $DateStr, it would a much better idea to parse $DateStr as a DateTime instance and compare that against today's date.