/// <summary>
/// Retrieves or creates the folder as a ListItem
/// </summary>
/// <param name="onlineLibrary"></param>
/// <param name="destinationFolder"></param>
/// <param name="folderName"></param>
/// <param name="defaultLastItemId"></param>
/// <returns>The listitem as a folder</returns>
public static Folder GetOrCreateFolder(this List onlineLibrary, Folder destinationFolder, string folderName, int?defaultLastItemId = default(int?))
{
destinationFolder.EnsureProperties(afold => afold.ServerRelativeUrl, afold => afold.Folders);
var folderRelativeUrl = destinationFolder.ServerRelativeUrl;
// Remove invalid characters
var trimmedFolder = HelperExtensions.GetCleanDirectory(folderName, string.Empty);
ListItem folderItem = null;
var camlFields = new string[] { "Title", "ContentType", "ID" };
var camlViewFields = CAML.ViewFields(camlFields.Select(s => CAML.FieldRef(s)).ToArray());
var camlClause = CAML.And(
CAML.And(
CAML.Eq(CAML.FieldValue("FileDirRef", FieldType.Text.ToString("f"), folderRelativeUrl)),
CAML.Or(
CAML.Eq(CAML.FieldValue("LinkFilename", FieldType.Text.ToString("f"), trimmedFolder)),
CAML.Eq(CAML.FieldValue("Title", FieldType.Text.ToString("f"), trimmedFolder))
)
)
,
CAML.Eq(CAML.FieldValue("FSObjType", FieldType.Integer.ToString("f"), 1.ToString()))
);
var camlQueries = onlineLibrary.SafeCamlClauseFromThreshold(camlClause, defaultLastItemId);
foreach (var camlAndValue in camlQueries)
{
var camlWhereClause = CAML.Where(camlAndValue);
var camlQuery = new CamlQuery()
{
ViewXml = CAML.ViewQuery(ViewScope.RecursiveAll, camlWhereClause, string.Empty, camlViewFields, 5)
};
var listItems = onlineLibrary.GetItems(camlQuery);
onlineLibrary.Context.Load(listItems);
onlineLibrary.Context.ExecuteQueryRetry();
if (listItems.Count() > 0)
{
folderItem = listItems.FirstOrDefault();
System.Diagnostics.Trace.TraceInformation("Item {0} exists in the destination folder. Skip item creation file.....", folderName);
break;
}
}
;
if (folderItem != null)
{
return(folderItem.Folder);
}
try
{
var info = new ListItemCreationInformation();
info.UnderlyingObjectType = FileSystemObjectType.Folder;
info.LeafName = trimmedFolder;
info.FolderUrl = folderRelativeUrl;
folderItem = onlineLibrary.AddItem(info);
folderItem["Title"] = trimmedFolder;
folderItem.Update();
onlineLibrary.Context.ExecuteQueryRetry();
System.Diagnostics.Trace.TraceInformation("{0} folder Created", trimmedFolder);
return(folderItem.Folder);
}
catch (Exception Ex)
{
System.Diagnostics.Trace.TraceError("Failed to create or get folder for name {0} MSG:{1}", folderName, Ex.Message);
}
return(null);
}
/// <summary>
/// Retrieves or creates the folder as a ListItem
/// </summary>
/// <param name="onlineLibrary">The target list for the folder</param>
/// <param name="destinationFolder">The parent folder of the folter to be created</param>
/// <param name="folderName">The folder to be created</param>
/// <param name="defaultStartItemId">(OPTIONAL) If the list/library is above the threshold this will be the start index of the caml queries</param>
/// <param name="defaultLastItemId">(OPTIONAL) If the list/library is above the threshold this will be the terminating index of the caml queries</param>
/// <returns>The listitem as a folder</returns>
public static Folder GetOrCreateFolder(this List onlineLibrary, Folder destinationFolder, string folderName, Nullable <int> defaultStartItemId = default(int?), Nullable <int> defaultLastItemId = default(int?))
{
if (!onlineLibrary.IsPropertyAvailable(lctx => lctx.BaseType))
{
onlineLibrary.Context.Load(onlineLibrary, lctx => lctx.BaseType, lctx => lctx.BaseTemplate);
onlineLibrary.Context.ExecuteQueryRetry();
}
if (!destinationFolder.IsPropertyAvailable(fctx => fctx.ServerRelativeUrl) ||
!destinationFolder.IsObjectPropertyInstantiated(fctx => fctx.Folders))
{
destinationFolder.Context.Load(destinationFolder, afold => afold.ServerRelativeUrl, afold => afold.Folders);
destinationFolder.Context.ExecuteQueryRetry();
}
ListItem folderItem = null;
var folderRelativeUrl = destinationFolder.ServerRelativeUrl;
var camlFields = new string[] { "Title", "ID" };
var camlViewFields = CAML.ViewFields(camlFields.Select(s => CAML.FieldRef(s)).ToArray());
// Remove invalid characters
var trimmedFolder = HelperExtensions.GetCleanDirectory(folderName, string.Empty);
var linkFileFilter = CAML.Eq(CAML.FieldValue("Title", FieldType.Text.ToString("f"), trimmedFolder));
if (onlineLibrary.BaseType == BaseType.DocumentLibrary)
{
linkFileFilter = CAML.Or(
linkFileFilter,
CAML.Eq(CAML.FieldValue("LinkFilename", FieldType.Text.ToString("f"), trimmedFolder)));
}
var camlClause = CAML.And(
CAML.Eq(CAML.FieldValue("FileDirRef", FieldType.Text.ToString("f"), folderRelativeUrl)),
CAML.And(
CAML.Eq(CAML.FieldValue("FSObjType", FieldType.Integer.ToString("f"), 1.ToString())),
linkFileFilter
)
);
var camlQueries = onlineLibrary.SafeCamlClauseFromThreshold(1000, camlClause, defaultStartItemId, defaultLastItemId);
foreach (var camlAndValue in camlQueries)
{
ListItemCollectionPosition itemPosition = null;
var camlWhereClause = CAML.Where(camlAndValue);
var camlQuery = new CamlQuery()
{
ViewXml = CAML.ViewQuery(
ViewScope.RecursiveAll,
camlWhereClause,
string.Empty,
camlViewFields,
5)
};
camlQuery.ListItemCollectionPosition = itemPosition;
var listItems = onlineLibrary.GetItems(camlQuery);
onlineLibrary.Context.Load(listItems, lti => lti.ListItemCollectionPosition);
onlineLibrary.Context.ExecuteQueryRetry();
if (listItems.Count() > 0)
{
folderItem = listItems.FirstOrDefault();
System.Diagnostics.Trace.TraceInformation("Folder {0} exists in the destination folder. Skip folder creation .....", folderName);
break;
}
}
;
if (folderItem != null)
{
return(folderItem.Folder);
}
try
{
var info = new ListItemCreationInformation
{
UnderlyingObjectType = FileSystemObjectType.Folder,
LeafName = trimmedFolder,
FolderUrl = folderRelativeUrl
};
folderItem = onlineLibrary.AddItem(info);
folderItem["Title"] = trimmedFolder;
folderItem.Update();
onlineLibrary.Context.ExecuteQueryRetry();
System.Diagnostics.Trace.TraceInformation("{0} folder Created", trimmedFolder);
return(folderItem.Folder);
}
catch (Exception Ex)
{
System.Diagnostics.Trace.TraceError("Failed to create or get folder for name {0} MSG:{1}", folderName, Ex.Message);
}
return(null);
}
