SaaS CMS has officially launched! Learn more now.

erik.engstrand@precio.se
Aug 20, 2009
  7966
(0 votes)

EPiServer Community and user attributes

This article will give some examples of how to work with attributes on users in the EPiServer Community. Attributes can also be used on other objects in the commnuity, such as blogs, but this will not be discussed here.

Adding attributes

To get it possible to work with an attribute, you must first add it. Click on the Attributes link in the Community tab. You will get this dialog:

image

I will here create an attribute “ServiceIdentifier” of type string for the IUser class. It will now be possible to set this attribute on all users.

image

It is also possible to create custom attribute types. You can read about it here: http://world.episerver.com/en/Articles/Items/Creating-a-Custom-EPiServer-Community-Module---Attribute-Data-Types/

Set attribute value on the user

I will here set a guid to this newly created attribute. CurrentUser is a property of type IUser.

   1: Guid guid = Guid.NewGuid();
   2: if (CurrentUser != null && String.IsNullOrEmpty(CurrentUser.GetAttributeValue<string>("ServiceIdentifier")))
   3: {
   4:     // Create a clone of the user to enable edit
   5:     IUser currentUserClone = CurrentUser.Clone() as IUser;
   6:  
   7:     currentUserClone.SetAttributeValue<string>("ServiceIdentifier", guid.ToString());
   8:  
   9:     // Save everything to the user
  10:     CommunitySystem.CurrentContext.DefaultSecurity.UpdateUser(currentUserClone);
  11: }

Get attribute value from the user

   1: if (CurrentUser != null)
   2: {
   3:     return CurrentUser.GetAttributeValue<string>("ServiceIdentifier");
   4: }
   5: return String.Empty;

Search, find, query users given an attribute

You can create very advanced queries to search for users. The method IsServiceUser checks if there exists a user with the attribute “ServiceIdentifier” set to the value of guid. I don’t know know fast this kind of queries are on a huge number of users. Does anyone know?

   1: public bool IsServiceUser(string guid)
   2: {
   3:     //Create a new BlogQuery
   4:     UserQuery uq = new UserQuery();
   5:     StringCriterion strCriterion = new StringCriterion();
   6:     strCriterion.Value = guid;
   7:     uq["ServiceIdentifier"] = strCriterion;
   8:     return CommunitySystem.CurrentContext.DefaultSecurity.GetQueryResult(uq).Count > 0;
   9: }
Aug 20, 2009

Comments

Sep 21, 2010 10:32 AM

Nice and informative post, thanks!

Is there any way to programatically add such an attribute? Without going though the EPiServer administration interface?
/ Glenn F. Henriksen

Please login to comment.
Latest blogs
How to have a link plugin with extra link id attribute in TinyMce

Introduce Optimizely CMS Editing is using TinyMce for editing rich-text content. We need to use this control a lot in CMS site for kind of WYSWYG...

Binh Nguyen Thi | Jul 13, 2024

Create your first demo site with Optimizely SaaS/Visual Builder

Hello everyone, We are very excited about the launch of our SaaS CMS and the new Visual Builder that comes with it. Since it is the first time you'...

Patrick Lam | Jul 11, 2024

Integrate a CMP workflow step with CMS

As you might know Optimizely has an integration where you can create and edit pages in the CMS directly from the CMP. One of the benefits of this i...

Marcus Hoffmann | Jul 10, 2024

GetNextSegment with empty Remaining causing fuzzes

Optimizely CMS offers you to create partial routers. This concept allows you display content differently depending on the routed content in the URL...

David Drouin-Prince | Jul 8, 2024 | Syndicated blog