Replace value for several column depend condition power query

[Imad-R]

Hello,

The following will be an example of my problem. 

Here are the data : 

I want to filter these data by type of stock so I unpivot the column related to the stock number, and we obtain this table :

Only values different to 0 are interesting in the "Valeur" column consequently that's the result :

My problem it's the following, I want to replace some value by 0 depending condition.

For exemple let's focus on the second article:

I want to replace cupboard 1 stock value by 0 when modality in "Attribut" column equal "Freezer stock" for the first line, and replace Freezer stock value by 0 when modality = "cupboard 1 stock" for the second line. I want there to be only the value for the stock concerned and not another value for another type of stock that is different to the type of stock entered on the line. And that's for all line and all column concern value of stock. 

I have try to write with a M request but it doesn't work. 

Someone can help me please !!!

[jbwtp · Accepted solution]

Hi @Imad-R,

See if the code below works as you want. You can then modified to suite your case:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45Wck7MTlXSUTIEYrei1NQqpVgdFEHXnOJUpdhYAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Name = _t, Value = _t, Attribute = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Name", type text}, {"Value", Int64.Type}, {"Attribute", type text}}),
    #"Replaced Value" = Table.ReplaceValue(#"Changed Type",each [Attribute], null, (x, y, z)=> if y= "Freez" then 0 else x,{"Value"})
in
    #"Replaced Value"

Cheers,

John

[Imad-R]

Hello,

Thanks, it's working. It is not very convenient because I must make 3 different M requests for each modality of Attribut column but it suits me.

Thanks for your reactivity !

-- 1
= Table.ReplaceValue(#"Lignes filtrées",each [Attribut], null, (x, y, z)=> if y = "Freezer stock" then 0 else x,{"cupboard 1 stock value", "cupboard 2 stock value"})

-- 2
= Table.ReplaceValue(#"Personnalisé1",each [Attribut], null, (x, y, z)=> if y = "cupboard 1 stock" then 0 else x,{"Freezer stock value", "cupboard 2 stock value"})
-- 3
= Table.ReplaceValue(#"Personnalisé2",each [Attribut], null, (x, y, z)=> if y = "cupboard 2 stock" then 0 else x,{"Freezer stock value", "cupboard 1 stock value"})