policies to identify restore operations

hgindl — Wed, 24 Jul 2013 11:01:39 GMT

Hi all,i have the following requirements1) remove an aspect if the content of a document gets changed (because it is only valid for the actual document version)2) reapply it if the document gets restored from the version history.Part 1) works fine so far. I am using two policies ContentServicePolici

Re: policies to identify restore operations

rjohnson — Wed, 24 Jul 2013 14:29:08 GMT

Won't the version number be 1.0? In which case can't you just interrogate the version number and skip the remove aspect if its 1.0?

Bob Johnson

Re: policies to identify restore operations

hgindl — Wed, 24 Jul 2013 18:18:00 GMT

Hi Bob,

thanks for your reply, i checked that but in the policy lifecycle methods the version label is alread the version it is supposed to be. But it was a good hint. If you upload a new version of content the content url is unique among the set of content urls in the updated documents version history. In contrary if the document gets reverted, the content url is copied from the version this document gets reverted from, so it is then not unique in the version history.


public void afterCreateVersion(NodeRef versionableNode, Version version) {

      VersionHistory versionHistory = versionService
            .getVersionHistory(versionableNode);

      Version ancestorVersion = version;
      ContentData curContentData = (ContentData) version
            .getVersionProperty(ContentModel.PROP_CONTENT.getLocalName());

      while ((ancestorVersion = versionHistory
            .getPredecessor(ancestorVersion)) != null) {
         ContentData ancestorContentData = (ContentData) ancestorVersion
               .getVersionProperty(ContentModel.PROP_CONTENT
                     .getLocalName());
         if (curContentData != null
               && ancestorContentData != null
               && curContentData.getContentUrl().equals(
                     ancestorContentData.getContentUrl())) {
            return; // this is a revert so no further action is needed

         }
      }
      
      //TODO - do the work here
   }
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Kind regards
Hannes

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policies to identify restore operations

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Re: policies to identify restore operations