/// <summary>
/// To avoid completely re-scanning the whole media library after a change, we could simply update the current JSON storage
/// with the items that were cleaned up by our module. But take in mind that external changes are still being ignored by this module.
/// So for an accurate rendition of the media library data usage, a re-scan is necessary once in a while.
/// </summary>
/// <remarks>
/// The backlog of this module contains an idea to create a pipeline processor for the onSave handler of all items,
/// so the JSON storage could be updated continuously, never requiring a re-scan after the initial media library scan!
/// </remarks>
/// <param name="itemIDs">A list of Sitecore item ID strings of the items to update in the JSON storage.</param>
/// <param name="actionType">An ActionType enum object to indicate whether to delete the items in the list, or to remove the old versions from them.</param>
private void UpdateStorageAfterCleanUp(List <string> itemIDs, ActionType actionType)
{
MediaItemReport mediaItemRoot = null;
JsonStorage mediaItemReportStorage = null;
// read the media item report object from the JSON storage
var mediaItemPath = Settings.GetSetting("Shrink.MediaItemReportPath");
if (!string.IsNullOrEmpty(mediaItemPath))
{
mediaItemReportStorage = new JsonStorage(mediaItemPath);
mediaItemRoot = mediaItemReportStorage.Deserialize <MediaItemReport>();
}
if (mediaItemRoot != null)
{
// remove any children as supplied in the list of Sitecore item IDs
this.RemoveChildren(mediaItemRoot, itemIDs, actionType);
// write the updated JSON file to disk
mediaItemReportStorage.Serialize(mediaItemRoot);
// update the corresponding media library report JSON storage file with the updated info
var libraryReportPath = Settings.GetSetting("Shrink.MediaLibraryReportPath");
if (!string.IsNullOrEmpty(libraryReportPath))
{
var json = new JsonStorage(libraryReportPath);
json.Serialize(new MediaLibraryReport(mediaItemRoot));
}
}
}
/// <summary>
/// Returns a subset of the total media library based on the given category (see MediaConstants class for all categories)
/// </summary>
/// <param name="category">The category to get the items off.</param>
/// <returns>A pipe separated list of Sitecore IDs representing all items that fall within the given category.</returns>
public ActionResult SelectSubset(string category)
{
var subset = string.Empty;
// reload the JSON report file to reconstruct the media item report
var mediaItemPath = Settings.GetSetting("Shrink.MediaItemReportPath");
if (!string.IsNullOrEmpty(mediaItemPath))
{
var json = new JsonStorage(mediaItemPath);
var mediaItemRoot = json.Deserialize <MediaItemReport>();
var libraryReport = new MediaLibraryReport(mediaItemRoot);
List <MediaItemReport> items = null;
switch (category)
{
case MediaConstants.CategoryInUse:
items = libraryReport.ItemsByReferenceState(true);
break;
case MediaConstants.CategoryNotReferenced:
items = libraryReport.ItemsByReferenceState(false);
break;
case MediaConstants.CategoryReferencedUnknown:
items = libraryReport.ItemsReferencesUnknown();
break;
case MediaConstants.CategoryPublished:
items = libraryReport.ItemsByPublishingState(true);
break;
case MediaConstants.CategoryUnpublished:
items = libraryReport.ItemsByPublishingState(false);
break;
case MediaConstants.CategoryPublishedUnknown:
items = libraryReport.ItemsPublishingStateUnknown();
break;
case MediaConstants.CategoryItemsWithOldVersions:
items = libraryReport.ItemsByVersionState(true);
break;
case MediaConstants.CategoryItemsUsingAllVersions:
items = libraryReport.ItemsByVersionState(false);
break;
case MediaConstants.CategoryVersionsUnknown:
items = libraryReport.ItemsVersionsUnknown();
break;
}
if (items != null)
{
subset = ItemHelper.ItemListToPipedString(items);
}
}
return(Json(subset, JsonRequestBehavior.AllowGet));
}
