/// <summary>
/// Used for the DeleteContentOfType(s) methods to find content items to be trashed based on the content type ids passed in
/// </summary>
/// <typeparam name="TContent"></typeparam>
/// <param name="contentService"></param>
/// <param name="contentTypeIds">The content type ids being deleted</param>
/// <param name="rootItems"></param>
/// <param name="repository"></param>
/// <returns>
/// The content items to be trashed
/// </returns>
/// <remarks>
/// An internal extension method used for the DeleteContentOfTypes (DeleteMediaOfTypes) methods so that logic can be shared to avoid code duplication.
/// </remarks>
internal static IEnumerable <TContent> TrackTrashedForDeleteContentOfTypes <TContent>(this IContentServiceBase contentService,
IEnumerable <int> contentTypeIds,
IDictionary <string, TContent> rootItems,
IRepositoryVersionable <int, TContent> repository)
where TContent : IContentBase
{
const int pageSize = 10000;
var contentToRecycle = new List <TContent>();
//iterate over the root items found in the collection to be deleted, then discover which descendant items
//need to be moved to the recycle bin
foreach (var content in rootItems)
{
//Look for children of current content and move that to trash before the current content is deleted
var c = content;
var pathMatch = string.Format("{0},", c.Value.Path);
var descendantQuery = Query <TContent> .Builder.Where(x => x.Path.StartsWith(pathMatch));
long pageIndex = 0;
int currentPageSize;
do
{
long total;
var descendants = repository.GetPagedResultsByQuery(descendantQuery, pageIndex, pageSize, out total, "umbracoNode.id", Direction.Ascending, true).ToArray();
foreach (var d in descendants)
{
//track for recycling if this item is not of a contenttype that is being deleted
if (contentTypeIds.Contains(d.ContentTypeId) == false)
{
contentToRecycle.Add(d);
}
}
// need to store decendants count before filtering, in order for loop to work correctly
currentPageSize = descendants.Length;
pageIndex++;
} while (currentPageSize == pageSize);
}
return(contentToRecycle);
}
/// <summary>
/// Used for the DeleteContentOfType(s) methods to find content items to be deleted based on the content type ids passed in
/// </summary>
/// <typeparam name="TContent"></typeparam>
/// <param name="contentService"></param>
/// <param name="contentTypeIds">The content type ids being deleted</param>
/// <param name="repository"></param>
/// <param name="rootItems">
/// Returns a dictionary (path, TContent) of the root items discovered in the data set of items to be deleted, this can then be used
/// to search for content that needs to be trashed as a result of this.
/// </param>
/// <returns>
/// The content items to be deleted
/// </returns>
/// <remarks>
/// An internal extension method used for the DeleteContentOfTypes (DeleteMediaOfTypes) methods so that logic can be shared to avoid code duplication.
/// </remarks>
internal static IEnumerable <TContent> TrackDeletionsForDeleteContentOfTypes <TContent>(this IContentServiceBase contentService,
IEnumerable <int> contentTypeIds,
IRepositoryVersionable <int, TContent> repository,
out IDictionary <string, TContent> rootItems)
where TContent : IContentBase
{
var contentToDelete = new List <TContent>();
//track the 'root' items of the collection of nodes discovered to delete, we need to use
//these items to lookup descendants that are not of this doc type so they can be transfered
//to the recycle bin
rootItems = new Dictionary <string, TContent>();
var query = Query <TContent> .Builder.Where(x => contentTypeIds.Contains(x.ContentTypeId));
//TODO: What about content that has the contenttype as part of its composition?
long pageIndex = 0;
const int pageSize = 10000;
int currentPageSize;
do
{
long total;
//start at the highest level
var contents = repository.GetPagedResultsByQuery(query, pageIndex, pageSize, out total, "umbracoNode.level", Direction.Ascending, true).ToArray();
// need to store decendants count before filtering, in order for loop to work correctly
currentPageSize = contents.Length;
//loop through the items, check if if the item exists already in the hierarchy of items tracked
//and if not, we need to add it as a 'root' item to be used to lookup later
foreach (var content in contents)
{
var pathParts = content.Path.Split(',');
var found = false;
for (int i = 1; i < pathParts.Length; i++)
{
var currPath = "-1," + string.Join(",", Enumerable.Range(1, i).Select(x => pathParts[x]));
if (rootItems.Keys.Contains(currPath))
{
//this content item's ancestor already exists in the root collection
found = true;
break;
}
}
if (found == false)
{
rootItems[content.Path] = content;
}
//track content for deletion
contentToDelete.Add(content);
}
pageIndex++;
} while (currentPageSize == pageSize);
return(contentToDelete);
}
