PHP upload - "The file attribute value sent (Base64_encode of file) is not a valid Guid"

[danielpastoor]

I can upload images to dataverse with base64_encode but not files to the file column.

Is there any example for this or is file upload not supported?

This is my code:

$issueImage = new Entity('cra35_incident_files');
$issueImage['cra35_incident_id'] = new EntityReference('incident', $incidentID);
$issueImage['cra35_name'] = $file->getClientOriginalName();

$imageRowID =  $client->create($issueImage);

$issueImage = new \AlexaCRM\Xrm\Entity('cra35_incident_files', $imageRowID);
$issueImage['cra35_file'] = base64_encode(file_get_contents($file->path()));

 $client->update($issueImage);

[georged]

@danielpastoor image and file datatypes are definitely supported. Try upload method on OData client:

$client->getClient()->upload( 'cra35_incident_files', $incidentID, 'cra35_file', file_get_contents($file->path()), 'whateverthefilenameis' );

Don't think we have a sample handy but the above should work

[danielpastoor]

Thank you for your quick response. Now my file upload works.

But now if I want to retrieve the file with this code:

$query = new \AlexaCRM\Xrm\Query\QueryByAttribute( 'cra35_incident_files' );
$query->AddAttributeValue( 'cra35_incident_id', '(Id)');
$query->ColumnSet = new \AlexaCRM\Xrm\ColumnSet( [ 'cra35_file'] );
$collection = $client->RetrieveMultiple( $query);

Then I only get the file ID is it possible to retrieve the base64 of the file

[georged]

@danielpastoor as per https://docs.microsoft.com/en-us/powerapps/developer/data-platform/file-attributes, RetrieveMultiple cannot be used to retrieve a file column value. You need to access them on record-by-record basis.