/// <summary>
/// Gets the value of the layout field from the base layout if one is selected.
/// </summary>
/// <param name="item">The item.</param>
/// <returns>The merged layout field value of the base layout chain.</returns>
public virtual string GetBaseLayoutValue(Item item)
{
// Get the item selected in the Base Layout field. Otherwise, exit.
var baseLayout = new BaseLayoutItem(item).BaseLayout;
if (baseLayout == null)
{
return null;
}
// Get the value of the layout field on the base layout.
// If the selected item also has a base layout selected, this will cause implicit recursion.
return new LayoutField(baseLayout).Value;
}
/// <summary>
/// Gets the value of the layout field from the base layout if one is selected.
/// </summary>
/// <param name="item">The item.</param>
/// <returns>The merged layout field value of the base layout chain.</returns>
public virtual string GetBaseLayoutValue(Item item)
{
// Get the item selected in the Base Layout field. Otherwise, exit.
var baseLayout = new BaseLayoutItem(item).BaseLayout;
if (baseLayout == null)
{
return(null);
}
// Get the value of the layout field on the base layout.
// If the selected item also has a base layout selected, this will cause implicit recursion.
return(new LayoutField(baseLayout).Value);
}
/// <summary>
/// Determines if there are duplicat IDs in the baseLayouts ID set and the chain of base layout IDs originating at
/// item.
/// </summary>
/// <param name="item">the item</param>
/// <param name="baseLayouts">the starting set of IDs</param>
/// <returns>True if there are duplicate IDs. False if not.</returns>
protected virtual bool HasDuplicateBaseLayout(BaseLayoutItem item, HashSet<ID> baseLayouts)
{
var item2 = item;
do
{
if (!baseLayouts.Add(item2.ID))
{
return true;
}
item2 = item2.BaseLayout;
} while (item2 != null);
return false;
}
/// <summary>
/// Determines if there are duplicat IDs in the baseLayouts ID set and the chain of base layout IDs originating at
/// item.
/// </summary>
/// <param name="item">the item</param>
/// <param name="baseLayouts">the starting set of IDs</param>
/// <returns>True if there are duplicate IDs. False if not.</returns>
protected virtual bool HasDuplicateBaseLayout(BaseLayoutItem item, HashSet <ID> baseLayouts)
{
var item2 = item;
do
{
if (!baseLayouts.Add(item2.ID))
{
return(true);
}
item2 = item2.BaseLayout;
} while (item2 != null);
return(false);
}
/// <summary>
/// Initializes an instance of SaveBaseLayoutArgs
/// </summary>
/// <param name="item">the item to be saved</param>
public SaveBaseLayoutArgs(BaseLayoutItem item)
{
Assert.ArgumentNotNull(item, "item");
Item = item;
OldBaseLayoutItem = item.BaseLayout;
}