I am using C# code and Tridion(CMS) classes to fetch data from Tridion, below is the code to get all the publications List from Tridion.
protected void btnPublishPublicationList_Click(object sender, EventArgs e)
{
try
{
PublicationBL pubBL = new PublicationBL();
TridionCollection<Publication> pubAllList = pubBL.getAllPublicationList();
List<PublicationsBO> pubBos = new List<PublicationsBO>();
foreach (Publication pub in pubAllList)
{
if ((pub.Title.StartsWith("07"))||(pub.Title.StartsWith("08")))
{
PublicationsBO pubBO = new PublicationsBO();
pubBO.publicationID = pub.ID;
pubBO.publicationName = pub.Title;
pubBos.Add(pubBO);
}
}
pubBL.createPublicationListXML(pubBos);
}
catch (Exception ex)
{
log.Error(ex.Message);
}
}
In above code on the button click, I am using .net code and using Tridion class to get all the publications List as below:
TridionCollection<Publication> pubAllList = pubBL.getAllPublicationList();
I am getting my all the publications list very fast from the Tridion, however when I am going for foreach loop as below my process gets stuck and it takes lots of time to do this.
foreach (Publication pub in pubAllList)
{
if ((pub.Title.StartsWith("07"))||(pub.Title.StartsWith("08")))
{
PublicationsBO pubBO = new PublicationsBO();
pubBO.publicationID = pub.ID;
pubBO.publicationName = pub.Title;
pubBos.Add(pubBO);
}
}
After debugging I found that when debugger comes to foreach (Publication pub in pubAllList) it is taking lots of time. I think while making the Publication class object is taking time and it is Tridion class.
Please suggest any other way to do this or suggest what is wrong in above code.
Thanks.
It is indeed because of Tridion's lazy-loading. If all you need is a list of Publication IDs and Titles, I'd recommend using:
TDSE tdse = new TDSEClass():
XmlDocument publicationList = new XmlDocument();
publicationList.LoadXml(tdse.GetListPublications(ListColumnFilter.XMLListIDAndTitle));
This will give you an XML document containing a list of all publications (/tcm:ListPublications/tcm:Item), and each Item will contain a Title and ID attributes.
If you need more detail than just ID and Title, then you will have to individually load each publication, which you can do by using the ID attribute tdse.GetObject().
Hope this helps.
N
according to this which I think is the developers site... it looks like getAllPublicationList is using some sort of lazy loading so even though you have the collection you don't really have the items in it.
It appears that you can set filters on their collection rather than after the fact so that it will only load the records you are interested in.
to clarify, lazy loading means that when the collection is returned the data needed to populate the items in it are not yet laded. It isn't until you access the item in the collection that the data (e.g. by creating a Publication item) for that item is actually loaded. The purpose for using a lazy collection is to allow filtering on the collection so that unnecessary expensive loads can be avoided.
HTH
Related
So I am starting to learn how to use XML data within a app and decided to use some free data to do this however I cannot for the life of me get it working this is my code so far. (I have done a few apps with static data before but hey apps are designed to use the web right? :p)
public partial class MainPage : PhoneApplicationPage
{
List<XmlItem> xmlItems = new List<XmlItem>();
// Constructor
public MainPage()
{
InitializeComponent();
LoadXmlItems("http://hatrafficinfo.dft.gov.uk/feeds/datex/England/CurrentRoadworks/content.xml");
test();
}
public void test()
{
foreach (XmlItem item in xmlItems)
{
testing.Text = item.Title;
}
}
public void LoadXmlItems(string xmlUrl)
{
WebClient client = new WebClient();
client.OpenReadCompleted += (sender, e) =>
{
if (e.Error != null)
return;
Stream str = e.Result;
XDocument xdoc = XDocument.Load(str);
***xmlItems = (from item in xdoc.Descendants("situation id")
select new XmlItem()
{
Title = item.Element("impactOnTraffic").Value,
Description = item.Element("trafficRestrictionType").Value
}).ToList();***
// close
str.Close();
// add results to the list
xmlItems.Clear();
foreach (XmlItem item in xmlItems)
{
xmlItems.Add(item);
}
};
client.OpenReadAsync(new Uri(xmlUrl, UriKind.Absolute));
}
}
I am basically trying to learn how to do this at the moment as I am intrigued how to actually do it (I know there are many ways but ATM this way seems the easiest) I just don't get what the error is ATM. (The bit in * is where it says the error is)
I also know the display function ATM is not great (As it will only show the last item) but for testing this will do for now.
To some this may seem easy, as a learner its not so easy for me just yet.
The error in picture form:
(It seems I cant post images :/)
Thanks in advance for the help
Edit:
Answer below fixed the error :D
However still nothing is coming up. I "think" it's because of the XML layout and the amount of descendants it has (Cant work out what I need to do being a noob at XML and pulling it from the web as a data source)
Maybe I am starting too complicated :/
Still any help/tips on how to pull some elements from the feed (As there all in Descendants) correctly and store them would be great :D
Edit2:
I have it working (In a crude way) but still :D
Thanks Adam Maras!
The last issue was the double listing. (Adding it to a list, to then add it to another list was causing a null exception) Just using the 1 list within the method solved this issue, (Probably not the best way of doing it but it works for now) and allowed for me to add the results to a listbox until I spend some time working out how to use ListBox.ItemTemplate & DataTemplate to make it look more appealing. (Seems easy enough I say now...)
Thanks Again!!!
from item in xdoc.Descendants("situation id")
// ^
XML tag names can't contain spaces. Looking at the XML, you probably just want "situation" to match the <situation> elements.
After looking at your edit and further reviewing the XML, I figured out what the problem is. If you look at the root element of the document:
<d2LogicalModel xmlns="http://datex2.eu/schema/1_0/1_0" modelBaseVersion="1.0">
You'll see that it has a default namespace applied. The easiest solution to your problem will be to first get the namespsace from the root element:
var ns = xdoc.Root.Name.Namespace;
And then apply it wherever you're using a string to identify an element or attribute name:
from item in xdoc.Descendants(ns + "situation")
// ...
item.Element(ns + "impactOnTraffic").Value
item.Element(ns + "trafficRestrictionType").Value
One more thing: <impactOnTraffic> and <trafficRestrictionType> aren't direct children of the <situation> element, so you'll need to change that code as well:
Title = items.Descendants(ns + "impactOnTraffic").Single().Value,
Description = item.Descendants(ns + "trafficRestrictionType").Single().Value
I'm currently consuming information from Sharepoint 2010 using WCF Data Services from C# (an asp.net mvc4 application).
With regular Sharepoint lists items, when saving the changes to the context, the id of the new item is automatically populated on the original object. Meaning:
SomeContext context = /* creation of the context*/;
var someEntity = new SomeEntity {...};
context.AddToSomeEntityItems(someEntity);
context.SaveChanges();
var newId = someEntity.Id; //this will have the new id
However, if what you are creating is an item for a document library, the id doesn't seem to be updated on the saved entity. For example:
SomeContext context = /* creation of the context*/;
var someOtherEntity = new SomeOtherEntity {...};
Stream data = /* some stream*/;
context.AddToSomeOtherEntityItems(someOtherEntity);
context.SetSaveStream(someOtherEntity, data, true, "SomeMIMEType", "SomeSlugPath");
context.SaveChanges();
var newId = someOtherEntity.Id; //this will instead always have 0
I initially thought this was a bug in the first version of WCF Data Services so I updated to the latest, 5.4.0. But the behavior seems to be the same.
I would prefer to have to avoid strange lookups that ultimately could fail during heavy load, such as using .OrderByDescending(x => x.Id).First() to get the recently created item.
When looking at the actual network traffic using Fiddler, I can see that the initial upload of the binary data actually does return the information for the item along with its ID. And if I configure other relationships to that item using SetLink prior to saving changes they are linked correctly, so the context does handle the value accordingly.
Is there any way to get WCF Data Services to update the ID on the entity when the item is for a document library?
Typically, I set the Id manually before inserting it with
someOtherEntity.Id = Guid.NewGuid();
That way you can TDD it more easily as well. I think it is best to leave the responsibilities to your code than to rely upon an external storage system to tell you what the Id is.
What I am doing is parsing out the id from the response headers:
var responses = context.SaveChanges();
var created = responses.FirstOrDefault(r => r.StatusCode == (int)HttpStatusCode.Created);
if (response != null)
{
var location = response.Headers.First(h => h.Key == "Location").Value;
//location will be http://sharepoint.url/site/_vti_bin/ListData.svc/{listname}(id)
//you can parse out the id from the end of that string
}
It's not exactly elegant, but it works.
In Revit 2013 I have tool that I'm making that copies dimensions from one drafting view to another. I've got it to properly create a new version of a dimension including the Curve, DimensionType, and References but I'm having trouble with the properties Above, Below, Prefix, and Suffix. They copy just fine if at least one of them has a value. However, if none of them have a value then it will throw an AccessViolationException when I try to access them. I have tried to catch that exception but it bubbles up and it crashes Revit (I'm assuming it's caused by native code that fails).
How can I check to see if these properties have any value when I do my copying without triggering this AccessViolationException?
Autodesk Discussion Group Question
The DimensionData class is my own used for storing the dimension information so that it can be used to create the dimension in a separate document.
private IEnumerable<DimensionData> GetDimensionDataSet(Document document,
View view)
{
if (document == null)
throw new ArgumentNullException("document");
if (view == null)
throw new ArgumentNullException("view");
List<DimensionData> dimensionDataSet = new List<DimensionData>();
FilteredElementCollector dimensionCollector =
new FilteredElementCollector(document, view.Id);
dimensionCollector.OfClass(typeof(Dimension));
foreach (Dimension oldDimension in dimensionCollector)
{
Line oldDimensionLine = (Line)oldDimension.Curve;
string dimensionTypeName = oldDimension.DimensionType.Name;
List<ElementId> oldReferences = new List<ElementId>();
foreach (Reference oldReference in oldDimension.References)
oldReferences.Add(oldReference.ElementId);
DimensionData dimensionData;
try
{
string prefix = oldDimension.Prefix;
dimensionData = new DimensionData(oldDimensionLine,
oldReferences,
dimensionTypeName,
prefix,
oldDimension.Suffix,
oldDimension.Above,
oldDimension.Below);
}
catch (AccessViolationException)
{
dimensionData = new DimensionData(oldDimensionLine,
oldReferences, dimensionTypeName);
}
dimensionDataSet.Add(dimensionData);
}
return dimensionDataSet;
}
Regarding transactions: As far as I'm aware, you are only required to be inside a transaction when you are making any sort of CHANGE (modifications, deletions, additions). If all you are doing is collecting dimension information, you would not need a transaction, but when you use that information to create new dimensions in another document, that code would have to be inside a transaction. I have had a number of programs under development which did not yet modify the document but simply collected parameter settings and posted them to a TaskDialog.Show(). These programs worked fine, and I don't see anything in your code that actually modifies your model, so that doesn't seem to be your issue.
It seems like I bug.
Can you post the issue to the ADN Support?
The solution I can suggest is to use Parameters of the Dimension element instead of Dimension class properties.
For example, you can get Suffix and Prefix by following code
var suffixParameter =
oldDimension.get_Parameter(BuiltInParameter.SPOT_SLOPE_SUFFIX);
string suffix = null;
if (suffixParameter != null)
{
suffix = suffixParameter.AsString();
}
var prefixParameter =
oldDimension.get_Parameter(BuiltInParameter.SPOT_SLOPE_PREFIX);
string prefix = null;
if (prefixParameter != null)
{
prefix = prefixParameter.AsString();
}
Unfortunatelly, I don't tell you how to get Above and Below Properties via parameters, because I don't have a project to test. But you can easily determine parameters using BuiltInParameter Checker
Hope it helps.
[Edit] I have actually been allowed to use the doc names, which makes it much easier but I still think it would be interesting to find out if it is possible.
I have to set a trigger to duplicate content to different branches on the content tree as the site will be in several languages. I have been told that I cannot access the documents by name(as they may change) and I shouldn't use node IDs either(not that I would know how to, after a while it would become difficult to follow the structure).
How can I traverse the tree to insert the new document in the relevant sub branches in the other languages? Is there a way?
You can use the Document.AfterPublish event to catch the specific document object after it's been published. I would use this event handler to check the node type alias is one that you want copied, then you can call Document.MakeNew and pass the node ID of the new location.
This means you don't have to use a specific node ID or document name to trap an event.
Example:
using umbraco.cms.businesslogic.web;
using umbraco.cms.businesslogic;
using umbraco.BusinessLogic;
namespace MyWebsite {
public class MyApp : ApplicationBase {
public MyApp()
: base() {
Document.AfterPublish += new Document.PublishEventHandler(Document_AfterPublish);
}
void Document_AfterPublish(Document sender, PublishEventArgs e) {
if (sender.ContentType.Alias == "DoctypeAliasOfDocumentYouWantToCopy") {
int parentId = 0; // Change to the ID of where you want to create this document as a child.
Document d = Document.MakeNew("Name of new document", DocumentType.GetByAlias(sender.ContentType.Alias), User.GetUser(1), parentId)
foreach (var prop in sender.GenericProperties) {
d.getProperty(prop.PropertyType.Alias).Value = sender.getProperty(prop.PropertyType.Alias).Value;
}
d.Save();
d.Publish(User.GetUser(1));
}
}
}
}
i'm trying to import some legacy poll data into our sitecore solution. For part of the import, i'm trying to create new sitecore items to hold the data based off of a master page we already have set up for polls. this master has a couple of default items set up underneath of it, and I want to delete a couple of specific default items before I add the legacy poll data. however, when i attempt to delete one of the default items using item.DeleteChildren(), i get a NullReferenceException thrown by Sitecore.Tasks.ItemEventHandler.OnItemDeleted(Object sender, EventArgs args) in the sitecore kernel. if anyone has any idea what could be causing this, i'd appreciate it. we're on sitecore version 5.3.2.
here is the code i'm using to attempt to create/edit the item based off of a master. the creation all works perfectly, it's the DeleteChildren() call that doesn't work.
Guid LegacyPollFolderGuid = new Guid("8AE89A44-9DCD-4AC2-B0F3-DD438188A575");
Guid QuizOMaticMasterGuid = new Guid("74B95ABF-1898-4870-8B4F-50AF0078AE22");
var master = Sitecore.Configuration.Factory.GetDatabase("master");
var root = master.GetItem(new Sitecore.Data.ID(LegacyPollFolderGuid));
var quizMasterTemplate = master.Masters[new Sitecore.Data.ID(QuizOMaticMasterGuid)];
var quizPage = root.Add("Test Quiz", quizMasterTemplate);
if (quizPage != null)
{
var quiz = quizPage.Children["Column One"].Children["QuizOMatic"];
if (quiz != null)
{
var questionFolder = quiz.Children["Questions"];
var questionTemplate = questionFolder.Children[0].Template;
var resultsFolder = quiz.Children["Results"];
var linksFolder = quiz.Children["Links"];
using (new Sitecore.SecurityModel.SecurityDisabler())
{
questionFolder.DeleteChildren();
}
}
I've built a tool with the same functionality; removing all items under a specific folder. I got the same error, but I saw items being deleted. So I reran the tool multiple times and eventually all items were deleted.