/// <summary> Adds an single item ( as a <see cref="Single_Item"/> object) to the collections of items </summary>
/// <param name="Item"> Single digital resource to add to the collection of items </param>
/// <param name="BibID"> Bibliographic identifier for the title this volume belongs to </param>
public void Add_Item(Single_Item Item, string BibID )
{
if (titleLookupByBib.ContainsKey(BibID))
{
titleLookupByBib[BibID].Add_Item(Item);
}
else
{
Multiple_Volume_Item newTitle = new Multiple_Volume_Item(BibID);
newTitle.Add_Item(Item);
Add_Title(newTitle);
}
}
/// <summary> Adds an single item ( as a <see cref="SobekCM.Resource_Object.SobekCM_Item"/> object) to the collections of items </summary>
/// <param name="Item"> Single digital resource to add to the collection of items </param>
/// <param name="check_for_multiples"> Flag indicates whether to perform a multiple-check to see if volumes already exist for this title / item group </param>
public void Add_SobekCM_Item(SobekCM_Item Item, bool check_for_multiples)
{
// Create this item
Single_Item newItem = new Single_Item(Item.VID, Item.Behaviors.IP_Restriction_Membership, Item.Bib_Info.Main_Title.ToString());
// Add this to the existing title, or add a new one
string bibId = Item.BibID;
if (titleLookupByBib.ContainsKey(bibId))
{
titleLookupByBib[bibId].Add_Item(newItem);
}
else
{
Multiple_Volume_Item newTitle = new Multiple_Volume_Item(bibId);
newTitle.Add_Item(newItem);
Add_Title(newTitle);
}
}
/// <summary> Gets a <see cref="Single_Item"/> object from the collection, by Bib ID and VID </summary>
/// <param name="BibID"> Bibliographic identifier for the title / item group </param>
/// <param name="VID"> Volume identifier for the individual volume within the title </param>
/// <param name="Tracer"> Trace object keeps a list of each method executed and important milestones in rendering </param>
/// <returns> Basic information about this item as a <see cref="Single_Item"/> object. </returns>
public Single_Item Item_By_Bib_VID(string BibID, string VID, Custom_Tracer Tracer)
{
// Try to look this up in the database
lock (thisLock)
{
if (titleLookupByBib.ContainsKey(BibID))
{
if (titleLookupByBib[BibID].Contains_VID(VID))
return titleLookupByBib[BibID][VID];
}
// Try to pull this from the database
DataRow itemRow = Engine_Database.Get_Item_Information(BibID, VID, Tracer);
if (itemRow != null)
{
// Get a reference to the item table first
DataTable itemTable = itemRow.Table;
// Get references to the datacolumn next
DataColumn vidColumn = itemTable.Columns["VID"];
DataColumn restrictionColumn = itemTable.Columns["IP_Restriction_Mask"];
DataColumn titleColumn = itemTable.Columns["Title"];
// Create this item object
Single_Item newItem = new Single_Item(itemRow[vidColumn].ToString(), Convert.ToInt16(itemRow[restrictionColumn]), itemRow[titleColumn].ToString());
// Add this to the existing title, or add a new one
if (titleLookupByBib.ContainsKey(BibID))
{
titleLookupByBib[BibID].Add_Item(newItem);
}
else
{
Multiple_Volume_Item newTitle = new Multiple_Volume_Item(BibID);
newTitle.Add_Item(newItem);
Add_Title(newTitle);
}
// Return the newly built item as well
return newItem;
}
return null;
}
}