在 Powershell 中合并两个 CSV 文件，但一些输出条目因缺少数据而加倍
Merging two CSV files in Powershell but some output entries are doubled with missing data
我目前正在为工作项目设置文件上传。上传的文件应包含具有必要数据和所有变化（例如尺寸或长度）的所有项目。问题是，我无法将变化数据导出到与一般项目数据相同的文件中，所以我想既然我已经处理了处理并使用 powershell 脚本上传，我可以在使用 powershell 上传结果之前合并这两个文件出色地。
这是 headers 两个 CSV-Files:
feed_file
Artikelnummer,EAN,Hersteller,Produktname,EKPreis,UVP,Produktbeschreibung,ProduktURL,BildURL,Bestand
variant_file
"VaterArtikelnummer";"Artikelnummer";"UVP";"Bestand";"Variationsname1";"Variationsname2";"Variationsname3";"Variationswertname1";"Variationswertname2";"Variationswertname3";"EKPreis"
"Artikelnummer" 是两个文件的公共键，因为它包含每个文件只出现一次的唯一编号，并且变体文件中的大多数（但不是全部）条目也存在于基本提要文件中。
这是合并过程的代码（因为它目前不工作，它仍然包含在自己的文件中，所以没有其他代码可以干扰它）：
# Set the base path for the script and all relevant files
$path = "C:/path/to/files/and/script"
# Get the most recent item and variation csv files and import them
$feed_file = Import-Csv (get-childitem -path "$path/files/article/*" -Include *.csv | Sort-Object CreationTime -Descending | Select-Object -first 1)
$variant_file = Import-Csv (get-childitem -path "$path/jtlExport/*" -Include Export_*.csv | Sort-Object CreationTime -Descending | Select-Object -first 1) -Delimiter ";"
<# Generate an output where the following is true:
- Any item that is not a variant (not in $variant_file) gets assigned the already present data from $feed_file and appropriate empty columns at the end
- Any item that is a variant gets assigned the full data set, including any information about the variant
#>
$output = Foreach($item in $feed_file){
$variant_file | Where-Object Artikelnummer -eq $item.Artikelnummer -ov result
If(-not $result){
[PSCustomObject]@{
Artikelnummer = $item.Artikelnummer
EAN = $item.EAN
Hersteller = $item.Hersteller
Produktname = $item.Produktname
EKPreis = $item.EKPreis
UVP = $item.UVP
Produktbeschreibung = $item.Produktbeschreibung
ProduktURL = $item.ProduktURL
BildURL = $item.BildURL
Bestand = $item.Bestand
VaterArtikelnummer = ""
Variationsname1 = ""
Variationsname2 = ""
Variationsname3 = ""
Variationswertname1 = ""
Variationswertname2 = ""
Variationswertname3 = ""
}
}
Else{
Foreach($variant in $variant_file){
If($item.Artikelnummer -eq $variant.Artikelnummer){
[PSCustomObject]@{
Artikelnummer = $item.Artikelnummer
EAN = $item.EAN
Hersteller = $item.Hersteller
Produktname = $item.Produktname
EKPreis = $item.EKPreis
UVP = $item.UVP
Produktbeschreibung = $item.Produktbeschreibung
ProduktURL = $item.ProduktURL
BildURL = $item.BildURL
Bestand = $item.Bestand
VaterArtikelnummer = $variant.VaterArtikelnummer
Variationsname1 = $variant.Variationsname1
Variationsname2 = $variant.Variationsname2
Variationsname3 = $variant.Variationsname3
Variationswertname1 = $variant.Variationswertname1
Variationswertname2 = $variant.Variationswertname2
Variationswertname3 = $variant.Variationswertname3
}
}
}
}
}
# Export the output as a csv file ready to upload
$output | Export-Csv -Path "$path/sample.csv" -Encoding UTF8 -NoTypeInformation
虽然一般来说代码很可能会得到大幅改进，但我很高兴它正在做我想做的事情，我花了很长时间在互联网上搜索以找到一种方法来合并两个有效的文件就我而言（尽管我仍然很感激任何提示和建议）。
虽然有一个问题我似乎无法弄清楚，尽管输出是按照我想要的方式处理的，但有一个问题是每个项目都是变体，在最终结果中出现两次输出，但其中一个条目缺少大部分数据。这是一个例子：
"12345678_9",,,,"388,7","894,00",,,,"1","12345678","Größe","","","58","",""
"12345678_9","3210987654321","Hersteller","Produktname","388.70","894","Beschreibung","ProduktURL","BildURL","0","12345678","Größe","","","58","",""
如您所见，输出文件中的第一个条目（对于每个具有变体数据的项目）是一个精简版本，丢失了大部分原始数据，但仍保留了一些。我的第一个猜测是该项目以某种方式列出了两次，但如果我检查使用的原始两个输入文件，我只能在任何一个文件中找到一个条目，任何地方都没有。
我还尝试更改代码的第一部分（对于没有变体数据的任何项目）以在某些列中输出固定字符串，虽然这对任何不是变体的项目都有影响，但 double 仍然那个地方有空列，所以我认为它必须与处理确实具有匹配变体数据的项目的后一部分有关，但我无法理解到底是什么导致了这个问题。
我在 Windows Server 2016 上使用 Powershell 5.1，我希望有人能告诉我这个问题的可能显而易见的答案。
预先感谢大家的帮助！
此致
-凯文
编辑：Hansson0728 提供的解决方案非常有效，对类型进行了微调 "AllInLeft"，但它似乎也比我笨重的手动方法快很多。
$feedFile = import-csv <File>
$Variant = import-csv <File>
尝试使用此功能并执行类似
的操作
$feedFile | Join-Object -Right $variant_file -LeftJoinProperty ArtikelNummer -RightJoinProperty ArtikelNummer -Type OnlyIfInBoth
function Join-Object {
<#
.SYNOPSIS
Join data from two sets of objects based on a common value
.DESCRIPTION
Join data from two sets of objects based on a common value
For more details, see the accompanying blog post:
http://ramblingcookiemonster.github.io/Join-Object/
For even more details, see the original code and discussions that this borrows from:
Dave Wyatt's Join-Object - http://powershell.org/wp/forums/topic/merging-very-large-collections
Lucio Silveira's Join-Object - http://blogs.msdn.com/b/powershell/archive/2012/07/13/join-object.aspx
.PARAMETER Left
'Left' collection of objects to join. You can use the pipeline for Left.
The objects in this collection should be consistent.
We look at the properties on the first object for a baseline.
.PARAMETER Right
'Right' collection of objects to join.
The objects in this collection should be consistent.
We look at the properties on the first object for a baseline.
.PARAMETER LeftJoinProperty
Property on Left collection objects that we match up with RightJoinProperty on the Right collection
.PARAMETER RightJoinProperty
Property on Right collection objects that we match up with LeftJoinProperty on the Left collection
.PARAMETER LeftProperties
One or more properties to keep from Left. Default is to keep all Left properties (*).
Each property can:
- Be a plain property name like "Name"
- Contain wildcards like "*"
- Be a hashtable like @{Name="Product Name";Expression={$_.Name}}.
Name is the output property name
Expression is the property value ($_ as the current object)
Alternatively, use the Suffix or Prefix parameter to avoid collisions
Each property using this hashtable syntax will be excluded from suffixes and prefixes
.PARAMETER RightProperties
One or more properties to keep from Right. Default is to keep all Right properties (*).
Each property can:
- Be a plain property name like "Name"
- Contain wildcards like "*"
- Be a hashtable like @{Name="Product Name";Expression={$_.Name}}.
Name is the output property name
Expression is the property value ($_ as the current object)
Alternatively, use the Suffix or Prefix parameter to avoid collisions
Each property using this hashtable syntax will be excluded from suffixes and prefixes
.PARAMETER Prefix
If specified, prepend Right object property names with this prefix to avoid collisions
Example:
Property Name = 'Name'
Suffix = 'j_'
Resulting Joined Property Name = 'j_Name'
.PARAMETER Suffix
If specified, append Right object property names with this suffix to avoid collisions
Example:
Property Name = 'Name'
Suffix = '_j'
Resulting Joined Property Name = 'Name_j'
.PARAMETER Type
Type of join. Default is AllInLeft.
AllInLeft will have all elements from Left at least once in the output, and might appear more than once
if the where clause is true for more than one element in right, Left elements with matches in Right are
preceded by elements with no matches.
SQL equivalent: outer left join (or simply left join)
AllInRight is similar to AllInLeft.
OnlyIfInBoth will cause all elements from Left to be placed in the output, only if there is at least one
match in Right.
SQL equivalent: inner join (or simply join)
AllInBoth will have all entries in right and left in the output. Specifically, it will have all entries
in right with at least one match in left, followed by all entries in Right with no matches in left,
followed by all entries in Left with no matches in Right.
SQL equivalent: full join
.EXAMPLE
#
#Define some input data.
$l = 1..5 | Foreach-Object {
[pscustomobject]@{
Name = "jsmith$_"
Birthday = (Get-Date).adddays(-1)
}
}
$r = 4..7 | Foreach-Object{
[pscustomobject]@{
Department = "Department $_"
Name = "Department $_"
Manager = "jsmith$_"
}
}
#We have a name and Birthday for each manager, how do we find their department, using an inner join?
Join-Object -Left $l -Right $r -LeftJoinProperty Name -RightJoinProperty Manager -Type OnlyIfInBoth -RightProperties Department
# Name Birthday Department
# ---- -------- ----------
# jsmith4 4/14/2015 3:27:22 PM Department 4
# jsmith5 4/14/2015 3:27:22 PM Department 5
.EXAMPLE
#
#Define some input data.
$l = 1..5 | Foreach-Object {
[pscustomobject]@{
Name = "jsmith$_"
Birthday = (Get-Date).adddays(-1)
}
}
$r = 4..7 | Foreach-Object{
[pscustomobject]@{
Department = "Department $_"
Name = "Department $_"
Manager = "jsmith$_"
}
}
#We have a name and Birthday for each manager, how do we find all related department data, even if there are conflicting properties?
$l | Join-Object -Right $r -LeftJoinProperty Name -RightJoinProperty Manager -Type AllInLeft -Prefix j_
# Name Birthday j_Department j_Name j_Manager
# ---- -------- ------------ ------ ---------
# jsmith1 4/14/2015 3:27:22 PM
# jsmith2 4/14/2015 3:27:22 PM
# jsmith3 4/14/2015 3:27:22 PM
# jsmith4 4/14/2015 3:27:22 PM Department 4 Department 4 jsmith4
# jsmith5 4/14/2015 3:27:22 PM Department 5 Department 5 jsmith5
.EXAMPLE
#
#Hey! You know how to script right? Can you merge these two CSVs, where Path1's IP is equal to Path2's IP_ADDRESS?
#Get CSV data
$s1 = Import-CSV $Path1
$s2 = Import-CSV $Path2
#Merge the data, using a full outer join to avoid omitting anything, and export it
Join-Object -Left $s1 -Right $s2 -LeftJoinProperty IP_ADDRESS -RightJoinProperty IP -Prefix 'j_' -Type AllInBoth |
Export-CSV $MergePath -NoTypeInformation
.EXAMPLE
#
# "Hey Warren, we need to match up SSNs to Active Directory users, and check if they are enabled or not.
# I'll e-mail you an unencrypted CSV with all the SSNs from gmail, what could go wrong?"
# Import some SSNs.
$SSNs = Import-CSV -Path D:\SSNs.csv
#Get AD users, and match up by a common value, samaccountname in this case:
Get-ADUser -Filter "samaccountname -like 'wframe*'" |
Join-Object -LeftJoinProperty samaccountname -Right $SSNs `
-RightJoinProperty samaccountname -RightProperties ssn `
-LeftProperties samaccountname, enabled, objectclass
.NOTES
This borrows from:
Dave Wyatt's Join-Object - http://powershell.org/wp/forums/topic/merging-very-large-collections/
Lucio Silveira's Join-Object - http://blogs.msdn.com/b/powershell/archive/2012/07/13/join-object.aspx
Changes:
Always display full set of properties
Display properties in order (left first, right second)
If specified, add suffix or prefix to right object property names to avoid collisions
Use a hashtable rather than ordereddictionary (avoid case sensitivity)
.LINK
http://ramblingcookiemonster.github.io/Join-Object/
.FUNCTIONALITY
PowerShell Language
#>
[CmdletBinding()]
Param
(
[Parameter(Mandatory=$true,
ValueFromPipeLine = $true)]
[object[]] $Left,
# List to join with $Left
[Parameter(Mandatory=$true)]
[object[]] $Right,
[Parameter(Mandatory = $true)]
[string] $LeftJoinProperty,
[Parameter(Mandatory = $true)]
[string] $RightJoinProperty,
[object[]]$LeftProperties = '*',
# Properties from $Right we want in the output.
# Like LeftProperties, each can be a plain name, wildcard or hashtable. See the LeftProperties comments.
[object[]]$RightProperties = '*',
[validateset( 'AllInLeft', 'OnlyIfInBoth', 'AllInBoth', 'AllInRight')]
[Parameter(Mandatory=$false)]
[string]$Type = 'AllInLeft',
[string]$Prefix,
[string]$Suffix
)
Begin
{
function AddItemProperties($item, $properties, $hash)
{
if ($null -eq $item)
{
return
}
foreach($property in $properties)
{
$propertyHash = $property -as [hashtable]
if($null -ne $propertyHash)
{
$hashName = $propertyHash["name"] -as [string]
$expression = $propertyHash["expression"] -as [scriptblock]
$expressionValue = $expression.Invoke($item)[0]
$hash[$hashName] = $expressionValue
}
else
{
foreach($itemProperty in $item.psobject.Properties)
{
if ($itemProperty.Name -like $property)
{
$hash[$itemProperty.Name] = $itemProperty.Value
}
}
}
}
}
function TranslateProperties
{
[cmdletbinding()]
param(
[object[]]$Properties,
[psobject]$RealObject,
[string]$Side)
foreach($Prop in $Properties)
{
$propertyHash = $Prop -as [hashtable]
if($null -ne $propertyHash)
{
$hashName = $propertyHash["name"] -as [string]
$expression = $propertyHash["expression"] -as [scriptblock]
$ScriptString = $expression.tostring()
if($ScriptString -notmatch 'param\(')
{
Write-Verbose "Property '$HashName'`: Adding param(`$_) to scriptblock '$ScriptString'"
$Expression = [ScriptBlock]::Create("param(`$_)`n $ScriptString")
}
$Output = @{Name =$HashName; Expression = $Expression }
Write-Verbose "Found $Side property hash with name $($Output.Name), expression:`n$($Output.Expression | out-string)"
$Output
}
else
{
foreach($ThisProp in $RealObject.psobject.Properties)
{
if ($ThisProp.Name -like $Prop)
{
Write-Verbose "Found $Side property '$($ThisProp.Name)'"
$ThisProp.Name
}
}
}
}
}
function WriteJoinObjectOutput($leftItem, $rightItem, $leftProperties, $rightProperties)
{
$properties = @{}
AddItemProperties $leftItem $leftProperties $properties
AddItemProperties $rightItem $rightProperties $properties
New-Object psobject -Property $properties
}
#Translate variations on calculated properties. Doing this once shouldn't affect perf too much.
foreach($Prop in @($LeftProperties + $RightProperties))
{
if($Prop -as [hashtable])
{
foreach($variation in ('n','label','l'))
{
if(-not $Prop.ContainsKey('Name') )
{
if($Prop.ContainsKey($variation) )
{
$Prop.Add('Name',$Prop[$Variation])
}
}
}
if(-not $Prop.ContainsKey('Name') -or $Prop['Name'] -like $null )
{
Throw "Property is missing a name`n. This should be in calculated property format, with a Name and an Expression:`n@{Name='Something';Expression={`$_.Something}}`nAffected property:`n$($Prop | out-string)"
}
if(-not $Prop.ContainsKey('Expression') )
{
if($Prop.ContainsKey('E') )
{
$Prop.Add('Expression',$Prop['E'])
}
}
if(-not $Prop.ContainsKey('Expression') -or $Prop['Expression'] -like $null )
{
Throw "Property is missing an expression`n. This should be in calculated property format, with a Name and an Expression:`n@{Name='Something';Expression={`$_.Something}}`nAffected property:`n$($Prop | out-string)"
}
}
}
$leftHash = @{}
$rightHash = @{}
# Hashtable keys can't be null; we'll use any old object reference as a placeholder if needed.
$nullKey = New-Object psobject
$bound = $PSBoundParameters.keys -contains "InputObject"
if(-not $bound)
{
[System.Collections.ArrayList]$LeftData = @()
}
}
Process
{
#We pull all the data for comparison later, no streaming
if($bound)
{
$LeftData = $Left
}
Else
{
foreach($Object in $Left)
{
[void]$LeftData.add($Object)
}
}
}
End
{
foreach ($item in $Right)
{
$key = $item.$RightJoinProperty
if ($null -eq $key)
{
$key = $nullKey
}
$bucket = $rightHash[$key]
if ($null -eq $bucket)
{
$bucket = New-Object System.Collections.ArrayList
$rightHash.Add($key, $bucket)
}
$null = $bucket.Add($item)
}
foreach ($item in $LeftData)
{
$key = $item.$LeftJoinProperty
if ($null -eq $key)
{
$key = $nullKey
}
$bucket = $leftHash[$key]
if ($null -eq $bucket)
{
$bucket = New-Object System.Collections.ArrayList
$leftHash.Add($key, $bucket)
}
$null = $bucket.Add($item)
}
$LeftProperties = TranslateProperties -Properties $LeftProperties -Side 'Left' -RealObject $LeftData[0]
$RightProperties = TranslateProperties -Properties $RightProperties -Side 'Right' -RealObject $Right[0]
#I prefer ordered output. Left properties first.
[string[]]$AllProps = $LeftProperties
#Handle prefixes, suffixes, and building AllProps with Name only
$RightProperties = foreach($RightProp in $RightProperties)
{
if(-not ($RightProp -as [Hashtable]))
{
Write-Verbose "Transforming property $RightProp to $Prefix$RightProp$Suffix"
@{
Name="$Prefix$RightProp$Suffix"
Expression=[scriptblock]::create("param(`$_) `$_.'$RightProp'")
}
$AllProps += "$Prefix$RightProp$Suffix"
}
else
{
Write-Verbose "Skipping transformation of calculated property with name $($RightProp.Name), expression:`n$($RightProp.Expression | out-string)"
$AllProps += [string]$RightProp["Name"]
$RightProp
}
}
$AllProps = $AllProps | Select -Unique
Write-Verbose "Combined set of properties: $($AllProps -join ', ')"
foreach ( $entry in $leftHash.GetEnumerator() )
{
$key = $entry.Key
$leftBucket = $entry.Value
$rightBucket = $rightHash[$key]
if ($null -eq $rightBucket)
{
if ($Type -eq 'AllInLeft' -or $Type -eq 'AllInBoth')
{
foreach ($leftItem in $leftBucket)
{
WriteJoinObjectOutput $leftItem $null $LeftProperties $RightProperties | Select $AllProps
}
}
}
else
{
foreach ($leftItem in $leftBucket)
{
foreach ($rightItem in $rightBucket)
{
WriteJoinObjectOutput $leftItem $rightItem $LeftProperties $RightProperties | Select $AllProps
}
}
}
}
if ($Type -eq 'AllInRight' -or $Type -eq 'AllInBoth')
{
foreach ($entry in $rightHash.GetEnumerator())
{
$key = $entry.Key
$rightBucket = $entry.Value
$leftBucket = $leftHash[$key]
if ($null -eq $leftBucket)
{
foreach ($rightItem in $rightBucket)
{
WriteJoinObjectOutput $null $rightItem $LeftProperties $RightProperties | Select $AllProps
}
}
}
}
}
}
我目前正在为工作项目设置文件上传。上传的文件应包含具有必要数据和所有变化（例如尺寸或长度）的所有项目。问题是，我无法将变化数据导出到与一般项目数据相同的文件中，所以我想既然我已经处理了处理并使用 powershell 脚本上传，我可以在使用 powershell 上传结果之前合并这两个文件出色地。
这是 headers 两个 CSV-Files:
feed_file
Artikelnummer,EAN,Hersteller,Produktname,EKPreis,UVP,Produktbeschreibung,ProduktURL,BildURL,Bestand
variant_file
"VaterArtikelnummer";"Artikelnummer";"UVP";"Bestand";"Variationsname1";"Variationsname2";"Variationsname3";"Variationswertname1";"Variationswertname2";"Variationswertname3";"EKPreis"
"Artikelnummer" 是两个文件的公共键，因为它包含每个文件只出现一次的唯一编号，并且变体文件中的大多数（但不是全部）条目也存在于基本提要文件中。
这是合并过程的代码（因为它目前不工作，它仍然包含在自己的文件中，所以没有其他代码可以干扰它）：
# Set the base path for the script and all relevant files
$path = "C:/path/to/files/and/script"
# Get the most recent item and variation csv files and import them
$feed_file = Import-Csv (get-childitem -path "$path/files/article/*" -Include *.csv | Sort-Object CreationTime -Descending | Select-Object -first 1)
$variant_file = Import-Csv (get-childitem -path "$path/jtlExport/*" -Include Export_*.csv | Sort-Object CreationTime -Descending | Select-Object -first 1) -Delimiter ";"
<# Generate an output where the following is true:
- Any item that is not a variant (not in $variant_file) gets assigned the already present data from $feed_file and appropriate empty columns at the end
- Any item that is a variant gets assigned the full data set, including any information about the variant
#>
$output = Foreach($item in $feed_file){
$variant_file | Where-Object Artikelnummer -eq $item.Artikelnummer -ov result
If(-not $result){
[PSCustomObject]@{
Artikelnummer = $item.Artikelnummer
EAN = $item.EAN
Hersteller = $item.Hersteller
Produktname = $item.Produktname
EKPreis = $item.EKPreis
UVP = $item.UVP
Produktbeschreibung = $item.Produktbeschreibung
ProduktURL = $item.ProduktURL
BildURL = $item.BildURL
Bestand = $item.Bestand
VaterArtikelnummer = ""
Variationsname1 = ""
Variationsname2 = ""
Variationsname3 = ""
Variationswertname1 = ""
Variationswertname2 = ""
Variationswertname3 = ""
}
}
Else{
Foreach($variant in $variant_file){
If($item.Artikelnummer -eq $variant.Artikelnummer){
[PSCustomObject]@{
Artikelnummer = $item.Artikelnummer
EAN = $item.EAN
Hersteller = $item.Hersteller
Produktname = $item.Produktname
EKPreis = $item.EKPreis
UVP = $item.UVP
Produktbeschreibung = $item.Produktbeschreibung
ProduktURL = $item.ProduktURL
BildURL = $item.BildURL
Bestand = $item.Bestand
VaterArtikelnummer = $variant.VaterArtikelnummer
Variationsname1 = $variant.Variationsname1
Variationsname2 = $variant.Variationsname2
Variationsname3 = $variant.Variationsname3
Variationswertname1 = $variant.Variationswertname1
Variationswertname2 = $variant.Variationswertname2
Variationswertname3 = $variant.Variationswertname3
}
}
}
}
}
# Export the output as a csv file ready to upload
$output | Export-Csv -Path "$path/sample.csv" -Encoding UTF8 -NoTypeInformation
虽然一般来说代码很可能会得到大幅改进，但我很高兴它正在做我想做的事情，我花了很长时间在互联网上搜索以找到一种方法来合并两个有效的文件就我而言（尽管我仍然很感激任何提示和建议）。
虽然有一个问题我似乎无法弄清楚，尽管输出是按照我想要的方式处理的，但有一个问题是每个项目都是变体，在最终结果中出现两次输出，但其中一个条目缺少大部分数据。这是一个例子：
"12345678_9",,,,"388,7","894,00",,,,"1","12345678","Größe","","","58","",""
"12345678_9","3210987654321","Hersteller","Produktname","388.70","894","Beschreibung","ProduktURL","BildURL","0","12345678","Größe","","","58","",""
如您所见，输出文件中的第一个条目（对于每个具有变体数据的项目）是一个精简版本，丢失了大部分原始数据，但仍保留了一些。我的第一个猜测是该项目以某种方式列出了两次，但如果我检查使用的原始两个输入文件，我只能在任何一个文件中找到一个条目，任何地方都没有。
我还尝试更改代码的第一部分（对于没有变体数据的任何项目）以在某些列中输出固定字符串，虽然这对任何不是变体的项目都有影响，但 double 仍然那个地方有空列，所以我认为它必须与处理确实具有匹配变体数据的项目的后一部分有关，但我无法理解到底是什么导致了这个问题。
我在 Windows Server 2016 上使用 Powershell 5.1，我希望有人能告诉我这个问题的可能显而易见的答案。 预先感谢大家的帮助！
此致
-凯文
编辑：Hansson0728 提供的解决方案非常有效，对类型进行了微调 "AllInLeft"，但它似乎也比我笨重的手动方法快很多。
$feedFile = import-csv <File>
$Variant = import-csv <File>
尝试使用此功能并执行类似
的操作$feedFile | Join-Object -Right $variant_file -LeftJoinProperty ArtikelNummer -RightJoinProperty ArtikelNummer -Type OnlyIfInBoth
function Join-Object {
<#
.SYNOPSIS
Join data from two sets of objects based on a common value
.DESCRIPTION
Join data from two sets of objects based on a common value
For more details, see the accompanying blog post:
http://ramblingcookiemonster.github.io/Join-Object/
For even more details, see the original code and discussions that this borrows from:
Dave Wyatt's Join-Object - http://powershell.org/wp/forums/topic/merging-very-large-collections
Lucio Silveira's Join-Object - http://blogs.msdn.com/b/powershell/archive/2012/07/13/join-object.aspx
.PARAMETER Left
'Left' collection of objects to join. You can use the pipeline for Left.
The objects in this collection should be consistent.
We look at the properties on the first object for a baseline.
.PARAMETER Right
'Right' collection of objects to join.
The objects in this collection should be consistent.
We look at the properties on the first object for a baseline.
.PARAMETER LeftJoinProperty
Property on Left collection objects that we match up with RightJoinProperty on the Right collection
.PARAMETER RightJoinProperty
Property on Right collection objects that we match up with LeftJoinProperty on the Left collection
.PARAMETER LeftProperties
One or more properties to keep from Left. Default is to keep all Left properties (*).
Each property can:
- Be a plain property name like "Name"
- Contain wildcards like "*"
- Be a hashtable like @{Name="Product Name";Expression={$_.Name}}.
Name is the output property name
Expression is the property value ($_ as the current object)
Alternatively, use the Suffix or Prefix parameter to avoid collisions
Each property using this hashtable syntax will be excluded from suffixes and prefixes
.PARAMETER RightProperties
One or more properties to keep from Right. Default is to keep all Right properties (*).
Each property can:
- Be a plain property name like "Name"
- Contain wildcards like "*"
- Be a hashtable like @{Name="Product Name";Expression={$_.Name}}.
Name is the output property name
Expression is the property value ($_ as the current object)
Alternatively, use the Suffix or Prefix parameter to avoid collisions
Each property using this hashtable syntax will be excluded from suffixes and prefixes
.PARAMETER Prefix
If specified, prepend Right object property names with this prefix to avoid collisions
Example:
Property Name = 'Name'
Suffix = 'j_'
Resulting Joined Property Name = 'j_Name'
.PARAMETER Suffix
If specified, append Right object property names with this suffix to avoid collisions
Example:
Property Name = 'Name'
Suffix = '_j'
Resulting Joined Property Name = 'Name_j'
.PARAMETER Type
Type of join. Default is AllInLeft.
AllInLeft will have all elements from Left at least once in the output, and might appear more than once
if the where clause is true for more than one element in right, Left elements with matches in Right are
preceded by elements with no matches.
SQL equivalent: outer left join (or simply left join)
AllInRight is similar to AllInLeft.
OnlyIfInBoth will cause all elements from Left to be placed in the output, only if there is at least one
match in Right.
SQL equivalent: inner join (or simply join)
AllInBoth will have all entries in right and left in the output. Specifically, it will have all entries
in right with at least one match in left, followed by all entries in Right with no matches in left,
followed by all entries in Left with no matches in Right.
SQL equivalent: full join
.EXAMPLE
#
#Define some input data.
$l = 1..5 | Foreach-Object {
[pscustomobject]@{
Name = "jsmith$_"
Birthday = (Get-Date).adddays(-1)
}
}
$r = 4..7 | Foreach-Object{
[pscustomobject]@{
Department = "Department $_"
Name = "Department $_"
Manager = "jsmith$_"
}
}
#We have a name and Birthday for each manager, how do we find their department, using an inner join?
Join-Object -Left $l -Right $r -LeftJoinProperty Name -RightJoinProperty Manager -Type OnlyIfInBoth -RightProperties Department
# Name Birthday Department
# ---- -------- ----------
# jsmith4 4/14/2015 3:27:22 PM Department 4
# jsmith5 4/14/2015 3:27:22 PM Department 5
.EXAMPLE
#
#Define some input data.
$l = 1..5 | Foreach-Object {
[pscustomobject]@{
Name = "jsmith$_"
Birthday = (Get-Date).adddays(-1)
}
}
$r = 4..7 | Foreach-Object{
[pscustomobject]@{
Department = "Department $_"
Name = "Department $_"
Manager = "jsmith$_"
}
}
#We have a name and Birthday for each manager, how do we find all related department data, even if there are conflicting properties?
$l | Join-Object -Right $r -LeftJoinProperty Name -RightJoinProperty Manager -Type AllInLeft -Prefix j_
# Name Birthday j_Department j_Name j_Manager
# ---- -------- ------------ ------ ---------
# jsmith1 4/14/2015 3:27:22 PM
# jsmith2 4/14/2015 3:27:22 PM
# jsmith3 4/14/2015 3:27:22 PM
# jsmith4 4/14/2015 3:27:22 PM Department 4 Department 4 jsmith4
# jsmith5 4/14/2015 3:27:22 PM Department 5 Department 5 jsmith5
.EXAMPLE
#
#Hey! You know how to script right? Can you merge these two CSVs, where Path1's IP is equal to Path2's IP_ADDRESS?
#Get CSV data
$s1 = Import-CSV $Path1
$s2 = Import-CSV $Path2
#Merge the data, using a full outer join to avoid omitting anything, and export it
Join-Object -Left $s1 -Right $s2 -LeftJoinProperty IP_ADDRESS -RightJoinProperty IP -Prefix 'j_' -Type AllInBoth |
Export-CSV $MergePath -NoTypeInformation
.EXAMPLE
#
# "Hey Warren, we need to match up SSNs to Active Directory users, and check if they are enabled or not.
# I'll e-mail you an unencrypted CSV with all the SSNs from gmail, what could go wrong?"
# Import some SSNs.
$SSNs = Import-CSV -Path D:\SSNs.csv
#Get AD users, and match up by a common value, samaccountname in this case:
Get-ADUser -Filter "samaccountname -like 'wframe*'" |
Join-Object -LeftJoinProperty samaccountname -Right $SSNs `
-RightJoinProperty samaccountname -RightProperties ssn `
-LeftProperties samaccountname, enabled, objectclass
.NOTES
This borrows from:
Dave Wyatt's Join-Object - http://powershell.org/wp/forums/topic/merging-very-large-collections/
Lucio Silveira's Join-Object - http://blogs.msdn.com/b/powershell/archive/2012/07/13/join-object.aspx
Changes:
Always display full set of properties
Display properties in order (left first, right second)
If specified, add suffix or prefix to right object property names to avoid collisions
Use a hashtable rather than ordereddictionary (avoid case sensitivity)
.LINK
http://ramblingcookiemonster.github.io/Join-Object/
.FUNCTIONALITY
PowerShell Language
#>
[CmdletBinding()]
Param
(
[Parameter(Mandatory=$true,
ValueFromPipeLine = $true)]
[object[]] $Left,
# List to join with $Left
[Parameter(Mandatory=$true)]
[object[]] $Right,
[Parameter(Mandatory = $true)]
[string] $LeftJoinProperty,
[Parameter(Mandatory = $true)]
[string] $RightJoinProperty,
[object[]]$LeftProperties = '*',
# Properties from $Right we want in the output.
# Like LeftProperties, each can be a plain name, wildcard or hashtable. See the LeftProperties comments.
[object[]]$RightProperties = '*',
[validateset( 'AllInLeft', 'OnlyIfInBoth', 'AllInBoth', 'AllInRight')]
[Parameter(Mandatory=$false)]
[string]$Type = 'AllInLeft',
[string]$Prefix,
[string]$Suffix
)
Begin
{
function AddItemProperties($item, $properties, $hash)
{
if ($null -eq $item)
{
return
}
foreach($property in $properties)
{
$propertyHash = $property -as [hashtable]
if($null -ne $propertyHash)
{
$hashName = $propertyHash["name"] -as [string]
$expression = $propertyHash["expression"] -as [scriptblock]
$expressionValue = $expression.Invoke($item)[0]
$hash[$hashName] = $expressionValue
}
else
{
foreach($itemProperty in $item.psobject.Properties)
{
if ($itemProperty.Name -like $property)
{
$hash[$itemProperty.Name] = $itemProperty.Value
}
}
}
}
}
function TranslateProperties
{
[cmdletbinding()]
param(
[object[]]$Properties,
[psobject]$RealObject,
[string]$Side)
foreach($Prop in $Properties)
{
$propertyHash = $Prop -as [hashtable]
if($null -ne $propertyHash)
{
$hashName = $propertyHash["name"] -as [string]
$expression = $propertyHash["expression"] -as [scriptblock]
$ScriptString = $expression.tostring()
if($ScriptString -notmatch 'param\(')
{
Write-Verbose "Property '$HashName'`: Adding param(`$_) to scriptblock '$ScriptString'"
$Expression = [ScriptBlock]::Create("param(`$_)`n $ScriptString")
}
$Output = @{Name =$HashName; Expression = $Expression }
Write-Verbose "Found $Side property hash with name $($Output.Name), expression:`n$($Output.Expression | out-string)"
$Output
}
else
{
foreach($ThisProp in $RealObject.psobject.Properties)
{
if ($ThisProp.Name -like $Prop)
{
Write-Verbose "Found $Side property '$($ThisProp.Name)'"
$ThisProp.Name
}
}
}
}
}
function WriteJoinObjectOutput($leftItem, $rightItem, $leftProperties, $rightProperties)
{
$properties = @{}
AddItemProperties $leftItem $leftProperties $properties
AddItemProperties $rightItem $rightProperties $properties
New-Object psobject -Property $properties
}
#Translate variations on calculated properties. Doing this once shouldn't affect perf too much.
foreach($Prop in @($LeftProperties + $RightProperties))
{
if($Prop -as [hashtable])
{
foreach($variation in ('n','label','l'))
{
if(-not $Prop.ContainsKey('Name') )
{
if($Prop.ContainsKey($variation) )
{
$Prop.Add('Name',$Prop[$Variation])
}
}
}
if(-not $Prop.ContainsKey('Name') -or $Prop['Name'] -like $null )
{
Throw "Property is missing a name`n. This should be in calculated property format, with a Name and an Expression:`n@{Name='Something';Expression={`$_.Something}}`nAffected property:`n$($Prop | out-string)"
}
if(-not $Prop.ContainsKey('Expression') )
{
if($Prop.ContainsKey('E') )
{
$Prop.Add('Expression',$Prop['E'])
}
}
if(-not $Prop.ContainsKey('Expression') -or $Prop['Expression'] -like $null )
{
Throw "Property is missing an expression`n. This should be in calculated property format, with a Name and an Expression:`n@{Name='Something';Expression={`$_.Something}}`nAffected property:`n$($Prop | out-string)"
}
}
}
$leftHash = @{}
$rightHash = @{}
# Hashtable keys can't be null; we'll use any old object reference as a placeholder if needed.
$nullKey = New-Object psobject
$bound = $PSBoundParameters.keys -contains "InputObject"
if(-not $bound)
{
[System.Collections.ArrayList]$LeftData = @()
}
}
Process
{
#We pull all the data for comparison later, no streaming
if($bound)
{
$LeftData = $Left
}
Else
{
foreach($Object in $Left)
{
[void]$LeftData.add($Object)
}
}
}
End
{
foreach ($item in $Right)
{
$key = $item.$RightJoinProperty
if ($null -eq $key)
{
$key = $nullKey
}
$bucket = $rightHash[$key]
if ($null -eq $bucket)
{
$bucket = New-Object System.Collections.ArrayList
$rightHash.Add($key, $bucket)
}
$null = $bucket.Add($item)
}
foreach ($item in $LeftData)
{
$key = $item.$LeftJoinProperty
if ($null -eq $key)
{
$key = $nullKey
}
$bucket = $leftHash[$key]
if ($null -eq $bucket)
{
$bucket = New-Object System.Collections.ArrayList
$leftHash.Add($key, $bucket)
}
$null = $bucket.Add($item)
}
$LeftProperties = TranslateProperties -Properties $LeftProperties -Side 'Left' -RealObject $LeftData[0]
$RightProperties = TranslateProperties -Properties $RightProperties -Side 'Right' -RealObject $Right[0]
#I prefer ordered output. Left properties first.
[string[]]$AllProps = $LeftProperties
#Handle prefixes, suffixes, and building AllProps with Name only
$RightProperties = foreach($RightProp in $RightProperties)
{
if(-not ($RightProp -as [Hashtable]))
{
Write-Verbose "Transforming property $RightProp to $Prefix$RightProp$Suffix"
@{
Name="$Prefix$RightProp$Suffix"
Expression=[scriptblock]::create("param(`$_) `$_.'$RightProp'")
}
$AllProps += "$Prefix$RightProp$Suffix"
}
else
{
Write-Verbose "Skipping transformation of calculated property with name $($RightProp.Name), expression:`n$($RightProp.Expression | out-string)"
$AllProps += [string]$RightProp["Name"]
$RightProp
}
}
$AllProps = $AllProps | Select -Unique
Write-Verbose "Combined set of properties: $($AllProps -join ', ')"
foreach ( $entry in $leftHash.GetEnumerator() )
{
$key = $entry.Key
$leftBucket = $entry.Value
$rightBucket = $rightHash[$key]
if ($null -eq $rightBucket)
{
if ($Type -eq 'AllInLeft' -or $Type -eq 'AllInBoth')
{
foreach ($leftItem in $leftBucket)
{
WriteJoinObjectOutput $leftItem $null $LeftProperties $RightProperties | Select $AllProps
}
}
}
else
{
foreach ($leftItem in $leftBucket)
{
foreach ($rightItem in $rightBucket)
{
WriteJoinObjectOutput $leftItem $rightItem $LeftProperties $RightProperties | Select $AllProps
}
}
}
}
if ($Type -eq 'AllInRight' -or $Type -eq 'AllInBoth')
{
foreach ($entry in $rightHash.GetEnumerator())
{
$key = $entry.Key
$rightBucket = $entry.Value
$leftBucket = $leftHash[$key]
if ($null -eq $leftBucket)
{
foreach ($rightItem in $rightBucket)
{
WriteJoinObjectOutput $null $rightItem $LeftProperties $RightProperties | Select $AllProps
}
}
}
}
}
}