ApplyActionToAllRenderings() public static method

Helper method that loops over all Shared and Final renderings in all devices attached to an item and invokes a function on each of them. The function may request the deletion of the item by returning a specific enum value.
public static ApplyActionToAllRenderings ( System.Item item, RenderingActionResult>.Func action ) : void
item System.Item
action RenderingActionResult>.Func
return void
LayoutHelper Class Documentation
Esempio n. 1
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        protected virtual void RewriteBranchRenderingDataSources(Item item, BranchItem branchTemplateItem, string branchRoot)
        {
            var branchBasePath = branchTemplateItem.InnerItem.Paths.FullPath;

            LayoutHelper.ApplyActionToAllRenderings(item, rendering =>
            {
                if (string.IsNullOrWhiteSpace(rendering.Datasource))
                {
                    return(RenderingActionResult.None);
                }

                // note: queries and multiple item datasources are not supported
                var renderingTargetItem = item.Database.GetItem(rendering.Datasource);

                if (renderingTargetItem == null)
                {
                    Log.Warn("Error while expanding branch template rendering datasources: data source {0} was not resolvable.".FormatWith(rendering.Datasource), this);
                }

                // if there was no valid target item OR the target item is not a child of the branch template we skip out
                if (renderingTargetItem == null || !renderingTargetItem.Paths.FullPath.StartsWith(branchBasePath, StringComparison.OrdinalIgnoreCase))
                {
                    return(RenderingActionResult.None);
                }

                var relativeRenderingPath = renderingTargetItem.Paths.FullPath.Substring(branchBasePath.Length).TrimStart('/');
                relativeRenderingPath     = relativeRenderingPath.Substring(relativeRenderingPath.IndexOf('/'));             // we need to skip the "/$name" at the root of the branch children

                var newTargetPath = item.Paths.FullPath + relativeRenderingPath;

                var newTargetItem = item.Database.GetItem(newTargetPath);

                // if the target item was a valid under branch item, but the same relative path does not exist under the branch instance
                // we set the datasource to something invalid to avoid any potential unintentional edits of a shared data source item
                if (newTargetItem == null)
                {
                    rendering.Datasource = "INVALID_BRANCH_SUBITEM_ID";
                    return(RenderingActionResult.None);
                }

                rendering.Datasource = newTargetItem.ID.ToString();
                return(RenderingActionResult.None);
            });

            if (!item.HasChildren)
            {
                return;
            }
            item.Children.ToList().ForEach(x => RewriteBranchRenderingDataSources(x, branchTemplateItem, branchRoot));
        }