Sitecore Publishing Service 1.8.0 does not publish blob data for custom field using type Attachment

Question

I've created a new file template called Code which contains many of the same fields as the File template but does not inherit it. While publishing using the Sitecore Publishing Service the blob data does not appear.

Field: Missing attachment

Settings: sc.global.xml

<Settings>
  <Sitecore>
    <Publishing>
      <ConnectionStrings>
        <Master>user id=sa;password=pass123;data source=(local);database=demo.dev.localsitecore_Master;MultipleActiveResultSets=True;</Master>
        <Core>user id=sa;password=pass123;data source=(local);database=demo.dev.localsitecore_Core;MultipleActiveResultSets=True;</Core>
        <Web>user id=sa;password=pass123;data source=(local);database=demo.dev.localsitecore_Web;MultipleActiveResultSets=True;</Web>
      </ConnectionStrings>
      <LogLevel>Information</LogLevel>
    </Publishing>
  </Sitecore>
</Settings>

Answer 1

By default, the publishing service will publish Blobs if they are created/referenced by the following fields:

• /sitecore/templates/System/Media/Versioned/File/Media/Blob Guid = {DBBE7D99-1388-4357-BB34-AD71EDF18ED3}

• /sitecore/templates/System/Media/Unversioned/File/Media/Blob Guid = {40E50ED9-BA07-4702-992E-A912738D32DC}

In case of you defined your own field, you will need to configure the publishing service to use it. In order to do that, you can pass the new field Id to the RequiredPublishFieldsResolver options (check the sc.publishing.services.xml). Should be something like:

<Settings>
  <Sitecore>
    <Publishing>
     <Services>
      <RequiredPublishFieldsResolver>
      <As>Sitecore.Framework.Publishing.IRequiredPublishFieldsResolver, Sitecore.Framework.Publishing.Service.Abstractions</As>
      <Type>Sitecore.Framework.Publishing.RequiredPublishFieldsResolver, Sitecore.Framework.Publishing</Type>
      <Options>
        <AdditionalMediaFieldsIds>
          <Id>**The Guid of your Blob Field**</Id>
        </AdditionalMediaFieldsIds>
      </Options>
      </RequiredPublishFieldsResolver>
     </Services>
    </Publishing>
   </Sitecore>
  </Settings>

You can put this in a file (for example codefield_patch.xml) and place it in the global folder of the Publishing Service. This will mean it will be available for all environments (You can place it in 'developement' or 'production' folders to be environment specific - See the install guide for more info about these options)

Hope this helps