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Data Source Connection based on Parameters to switch between cloud and local sources possible?
I have a Power BI file in which I'd like to be able to switch the connection to the source data between local and cloud - the data is structured in exactly the same way in both environments - and ...
- As it turns out, unfortunately, it looks like using an "if" statement to dictate the source within a query makes you lose the ability to refresh the dataset once published to the cloud.
Though everything works perfectly on the desktop, once the dataset is published, the service doesn't recognize the data source as being valid within the query, and therefore doesn't give you any options for refresh or editing credentials.
I tried writing the query your proposed way with the "if" statement outside of the source line as well as my method where the source line includes the if statement within it and both methods fail in the cloud.
So I think in reality what I want seems to be impossible.
Ah! I didn't realize I could have an "if" M statement to dynamically reference a source query.
To be sure I understand correctly - I can have 2 queries - 1 pointing to SharePoint called "SharePointSource" and another pointing to the local folder called "LocalSource" - and then I can have a reference query to dynamically point to the appropriate query based on the parameter?
Can you provide an example of an M "if" statement I could use to point to either "SharePointSource" or "LocalSource"?
Something like? I don't think that works.. but what would?
if Text.StartsWith("http", ConnectionParameter) then
let Source = SharePointSource
else
let Source = LocalSource
in
Source
Nevermind - Got it! the below works perfectly.
let Source = if Text.StartsWith(Connection,"http") then SharePointSource else LocalSource in Source