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Optimized widget layer evaluation.

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This commit is contained in:
Sipke Schoorstra
2015-04-05 14:06:43 +02:00
parent 1a02d106a8
commit 8383572ce1
1 changed files with 68 additions and 49 deletions
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117
src/Orchard.Web/Modules/Orchard.Widgets/Drivers/ColumnElementDriver.cs
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@@ -57,58 +57,13 @@ namespace Orchard.Widgets.Drivers {
}
private void RenderWidgets(Column element, ElementDisplayingContext context) {
var zoneName = element.ZoneName;
if (String.IsNullOrWhiteSpace(zoneName))
if (String.IsNullOrWhiteSpace(element.ZoneName))
return;
var activeLayers = _orchardServices.ContentManager.Query<LayerPart>().ForType("Layer").List();
var activeLayerIds = new List<int>();
foreach (var activeLayer in activeLayers) {
try {
if (_ruleManager.Matches(activeLayer.LayerRule)) {
activeLayerIds.Add(activeLayer.ContentItem.Id);
}
}
catch (Exception e) {
Logger.Warning(e, T("An error occured during layer evaluation on: {0}", activeLayer.Name).Text);
}
}
var widgetParts = _widgetsService.GetWidgets(layerIds: activeLayerIds.ToArray()).Where(x => x.Zone == zoneName);
var defaultCulture = _orchardServices.WorkContext.CurrentSite.As<SiteSettingsPart>().SiteCulture;
var currentCulture = _orchardServices.WorkContext.CurrentCulture;
foreach (var widgetPart in widgetParts) {
var commonPart = widgetPart.As<ICommonPart>();
if (commonPart == null || commonPart.Container == null) {
Logger.Warning("The widget '{0}' is has no assigned layer or the layer does not exist.", widgetPart.Title);
continue;
}
// Ignore widget for different cultures,
var localizablePart = widgetPart.As<ILocalizableAspect>();
if (localizablePart != null) {
// If localized culture is null then show if current culture is the default
// this allows a user to show a content item for the default culture only.
if (localizablePart.Culture == null && defaultCulture != currentCulture) {
continue;
}
// If culture is set, show only if current culture is the same.
if (localizablePart.Culture != null && localizablePart.Culture != currentCulture) {
continue;
}
}
// Check permissions.
if (!_orchardServices.Authorizer.Authorize(Core.Contents.Permissions.ViewContent, widgetPart)) {
continue;
}
var widgets = GetActiveWidgets().Where(x => x.Zone == element.ZoneName);
foreach (var widgetPart in widgets) {
var widgetShape = _orchardServices.ContentManager.BuildDisplay(widgetPart);
context.ElementShape.Add(widgetShape, widgetPart.Position);
}
}
@@ -118,5 +73,69 @@ namespace Orchard.Widgets.Drivers {
set.Add(zone);
}
}
/// <summary>
/// Gets all widgets for all active layers, optimized for being executed multiple times during a single HTTP request.
/// </summary>
private IEnumerable<WidgetPart> GetActiveWidgets() {
const string cacheKey = "ActiveWidgets";
var widgets = (IList<WidgetPart>)_orchardServices.WorkContext.HttpContext.Items[cacheKey];
if (widgets == null) {
widgets = new List<WidgetPart>();
var activeLayers = _orchardServices.ContentManager.Query<LayerPart>().ForType("Layer").List();
var activeLayerIds = new List<int>();
foreach (var activeLayer in activeLayers) {
try {
if (_ruleManager.Matches(activeLayer.LayerRule)) {
activeLayerIds.Add(activeLayer.ContentItem.Id);
}
}
catch (Exception e) {
Logger.Warning(e, T("An error occured during layer evaluation on: {0}", activeLayer.Name).Text);
}
}
var widgetParts = _widgetsService.GetWidgets(layerIds: activeLayerIds.ToArray());
var defaultCulture = _orchardServices.WorkContext.CurrentSite.As<SiteSettingsPart>().SiteCulture;
var currentCulture = _orchardServices.WorkContext.CurrentCulture;
foreach (var widgetPart in widgetParts) {
var commonPart = widgetPart.As<ICommonPart>();
if (commonPart == null || commonPart.Container == null) {
Logger.Warning("The widget '{0}' is has no assigned layer or the layer does not exist.", widgetPart.Title);
continue;
}
// Ignore widget for different cultures.
var localizablePart = widgetPart.As<ILocalizableAspect>();
if (localizablePart != null) {
// If localized culture is null then show if current culture is the default
// this allows a user to show a content item for the default culture only.
if (localizablePart.Culture == null && defaultCulture != currentCulture) {
continue;
}
// If culture is set, show only if current culture is the same.
if (localizablePart.Culture != null && localizablePart.Culture != currentCulture) {
continue;
}
}
// Check permissions.
if (!_orchardServices.Authorizer.Authorize(Core.Contents.Permissions.ViewContent, widgetPart)) {
continue;
}
widgets.Add(widgetPart);
}
_orchardServices.WorkContext.HttpContext.Items[cacheKey] = widgets;
}
return widgets;
}
}
}