Skip to main content

Create and Publish Page for Component in Workflow using Core Service

It seems like this use case keeps coming back time and time again. The requirement: when a new Component is in workflow, part of the approval workflow on the Component should be an automatic Page generation (where the Component is placed on the Page) and possibly publishing of the Page for the purpose of previewing the new Component in a Page context. All this while Component is in workflow, so approver can actually see how the Component looks like before approving/rejecting it.

The only issue, as described in the previous post, is that it is not possible to add a v0.x Component to a Page, when the Page is in a child Publication. The solution is to do all this programmatically.

In the following example, I use the Core Service to create a new Page (with values taken from a Folder metadata, for example) and place the v0.x Component on it.

using (CoreServiceSession coreService = new CoreServiceSession())
    if (component.Version < 1)
        TcmUri pageTcmUri = coreService.CreatePage(title, fileName, sgTcmUri, ptTcmUri, localComponentTcmUri, ctTcmUri);
        PublisherHelper publisherHelper = new PublisherHelper();
        publisherHelper.Publish(pageTcmUri, targetTcmUri, true);

The Page is first created, then published (as described in my earlier posts about "How to Publish Stuff Programmatically"). The CoreServiceSession method CreatePage is the following:

public TcmUri CreatePage(String title, String fileName, TcmUri sgTcmUri, TcmUri ptTcmUri, TcmUri componentTcmUri, TcmUri ctTcmUri)
    PageData pageData = new PageData();
    pageData.Id = TcmUri.UriNull.ToString();
    pageData.Title = title;
    pageData.FileName = fileName;

    LinkToPageTemplateData linkToPageTemplateData = new LinkToPageTemplateData();
    linkToPageTemplateData.IdRef = ptTcmUri.ToString();
    pageData.PageTemplate = linkToPageTemplateData;
    pageData.IsPageTemplateInherited = false;

    LinkToOrganizationalItemData linkToOrganizationalItemData = new LinkToOrganizationalItemData();
    linkToOrganizationalItemData.IdRef = sgTcmUri.ToString();
    LocationInfo locationInfo = new LocationInfo();
    locationInfo.OrganizationalItem = linkToOrganizationalItemData;
    pageData.LocationInfo = locationInfo;

    ComponentPresentationData[] cps = new ComponentPresentationData[1];
    cps[0] = new ComponentPresentationData();
    LinkToComponentData linkToComponentData = new LinkToComponentData();
    linkToComponentData.IdRef = componentTcmUri.ToString();
    cps[0].Component = linkToComponentData;
    LinkToComponentTemplateData linkToComponentTemplateData = new LinkToComponentTemplateData();
    linkToComponentTemplateData.IdRef = ctTcmUri.ToString();
    cps[0].ComponentTemplate = linkToComponentTemplateData;
    pageData.ComponentPresentations = cps;

    IdentifiableObjectData objectData = _coreServiceClient.Create(pageData, ReadOptions);

    return new TcmUri(objectData.Id);


Nivlong said…
Great timing, Mihai. I mentioned the classic automatic page creation scenario the other day waving my hands on the technical details ("it's magic"). Whew, good to know we have multiple ways to combine workflow with code: event system, but also the core service.

Nice naming conventions and clean code, too (no hard-coded ids!). Are the LinkTo...Data objects your own--are they helping manage IDs?
Mihai Cădariu said…
Thanks Alvin! All the *Data objects are Core Service standard objects. That's how content & metadata is represented on the client when using the Core Service.

Popular posts from this blog

Scaling Policies

This post is part of a bigger topic Autoscaling Publishers in AWS . In a previous post we talked about the Auto Scaling Groups , but we didn't go into details on the Scaling Policies. This is the purpose of this blog post. As defined earlier, the Scaling Policies define the rules according to which the group size is increased or decreased. These rules are based on instance metrics (e.g. CPU), CloudWatch custom metrics, or even CloudWatch alarms and their states and values. We defined a Scaling Policy with Steps, called 'increase_group_size', which is triggered first by the CloudWatch Alarm 'Publish_Alarm' defined earlier. Also depending on the size of the monitored CloudWatch custom metric 'Waiting for Publish', the Scaling Policy with Steps can add a difference number of instances to the group. The scaling policy sets the number of instances in group to 1 if there are between 1000 and 2000 items Waiting for Publish in the queue. It also sets the

Toolkit - Dynamic Content Queries

This post if part of a series about the  File System Toolkit  - a custom content delivery API for SDL Tridion. This post presents the Dynamic Content Query capability. The requirements for the Toolkit API are that it should be able to provide CustomMeta queries, pagination, and sorting -- all on the file system, without the use third party tools (database, search engines, indexers, etc). Therefore I had to implement a simple database engine and indexer -- which is described in more detail in post Writing My Own Database Engine . The querying logic does not make use of cache. This means the query logic is executed every time. When models are requested, the models are however retrieved using the ModelFactory and those are cached. Query Class This is the main class for dynamic content queries. It is the entry point into the execution logic of a query. The class takes as parameter a Criterion (presented below) which triggers the execution of query in all sub-criteria of a Criterio

Running sp_updatestats on AWS RDS database

Part of the maintenance tasks that I perform on a MSSQL Content Manager database is to run stored procedure sp_updatestats . exec sp_updatestats However, that is not supported on an AWS RDS instance. The error message below indicates that only the sa  account can perform this: Msg 15247 , Level 16 , State 1 , Procedure sp_updatestats, Line 15 [Batch Start Line 0 ] User does not have permission to perform this action. Instead there are several posts that suggest using UPDATE STATISTICS instead: I stumbled upon the following post from 2008 (!!!), , which describes a way to wrap the call to sp_updatestats and execute it under a different user: create procedure dbo.sp_updstats with execute as 'dbo' as