Adding new category to an existing folder through CWS

Hi,

We are trying to create a folder through web services (CWS).

Requirement - Suppose there are 4 categories a,b,c,d.

Category a,b,c should be inherted from parent folder , but category "d" should be applied through web services.

We have been trying to put new category "d" to a newly created folder through UpdateNode() but the inherited categories a,b,c are getting stripped. we are able to see only category d after updateNode execution.

Is there any other way to apply new category without losing the inherited ones?

Thanks,

Angad

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Comments

Appu_Nair1

I am not sure but my understanding is OT is done the checking for you in newer versions of webservices,but whether it was in lapi or oscript the way that you are supposed to do that is kind of pseudo code explanation.

GetNodeMetadata

An array of Cataegories returned ,in your case 3,you will add one more

Isolate each category data structure

Pinpoint the changes in each category

UpdateNode

If you just want to see the categories on a node a simple C# implementation

If you wanted to change some values in a category applied to a Node a simple C# implementation

Ahmad_Ijaz

Hi there,

I recently had to do the same for my project. Sample code snippet is given below:

private int UpdateCategory(Node node, AttributeGroup categoryTemplate)
        {
            int status = -1;
            try
            {
                //Add or Append the new (AttributeGroup == category) to Node categories (MetaData).
                List<AttributeGroup> currList;
                AttributeGroup[] currGroups = node.Metadata.AttributeGroups;
                if (currGroups != null)
                {
                    currList = currGroups.ToList();
                    AttributeGroup existingCat = null;
                    foreach (AttributeGroup cat in currList)
                    {
                        if (cat.DisplayName.ToLower() == categoryTemplate.DisplayName.ToLower())
                        {
                            existingCat = cat;
                            break;
                        }
                    }
                    // remove existing cat from the list and add the new one.
                    if (existingCat != null)
                        currList.Remove(existingCat);
                    currList.Add(categoryTemplate);
                }
                else
                {
                    currList = new List<AttributeGroup>();
                    currList.Add(categoryTemplate);
                }

                node.Metadata.AttributeGroups = currList.ToArray();
                // update node in the content server
                docClient.UpdateNode(ref docAuth, node);
                // node updated successfully
                status = 0;
            }

            catch (FaultException ex)
            {
                status = -1;
                log.WriteSub(4, string.Format("Exception in UpdateCategory: error code: {1} and error message : {2}",ex.Code, ex.Message));
            }
            catch (Exception ex)
            {
                status = -1;
                log.WriteSub(4, string.Format("Exception in UpdateCategory: error message : {1}", ex.Message));
            }
            return status;
        }

Note: You need to first get the existing categories list and then add to that list any new category you want to appy to a Node.

After that just set the node metadata attribute by assigning this new list and update Node. That's all.

Hope that help!

Regards,

Ijaz Ahmad