How to get last published date from a CmsResource in OpenCms

Question

I'm unable to get the last published date of a resource. There is no way to do that with OpenCms API. http://files.opencms.org/javadoc/core/org/opencms/file/CmsResource.html

That's very weird, it has to be stored in some place because OpenCms Workplace shows this information in the History option.

The method getDateReleased() from CmsResource class always returns DATE_RELEASED_DEFAULT until you set the availability of the resource.

Any thoughts? Thanks!

Answer 1

Finally I achieve this by digging in the source code from OpenCms. I found the solution here, in the getListItems method:

https://github.com/alkacon/opencms-core/blob/branch_8_5_x/src/org/opencms/workplace/commons/CmsHistoryList.java

So I built this method to get the last published date from any resource:

public static Date getLastPublishedDate(CmsJspActionElement cms, CmsResource resource) throws Exception {
    CmsObject cmso = cms.getCmsObject();
    String sitePath = cmso.getSitePath(resource);

    if (cmso.readAllAvailableVersions(sitePath).size() > 0) {
        I_CmsHistoryResource histRes = cmso.readAllAvailableVersions(sitePath).get(0);
        int publishTag = histRes.getPublishTag();
        CmsHistoryProject project = cmso.readHistoryProject(publishTag);            
        return new Date(project.getPublishingDate());                                   
    } else {
        return null;
    }   
}

If NULL is returned then the resource has not been published yet.