DevForce Community Forum : Check existence of dynamic entity http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce Classic : Check existence of dynamic entity Fri, 12 Jun 2026 00:12:03 -700 Thu, 02 Aug 2007 16:30:35 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=243 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ Check existence of dynamic entity : If you already know the "dynamic... http://www.ideablade.com/forum/forum_posts.asp?TID=243&PID=856#856 Author: kimj
Subject: 243
Posted: 02-Aug-2007 at 4:30pm

If you already know the "dynamic type key name" then you can also look for it directly, like this:
 
EntityTypeInfo info = EntityTypeInfo.GetByDynamicTypeKey("ProjectTypeCount");

if (info == null) {

   // Create dynamic type
 
}
]]> Thu, 02 Aug 2007 16:30:35 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=243&PID=856#856 Check existence of dynamic entity : Naveen, You can use EntityT... http://www.ideablade.com/forum/forum_posts.asp?TID=243&PID=819#819 Author: davidklitzke
Subject: 243
Posted: 31-Jul-2007 at 2:57pm

Naveen,
 

You can use EntityTypeInfo.GetAllDynamicTypes()to iterate through all of the types in the PersistenceManager cache.  Try something like this

 

      foreach (EntityTypeInfo eti in EntityTypeInfo.GetAllDynamicTypes()) {

        if (typeof(DynamicEntity).IsAssignableFrom(eti.EntityType) && (eti.DataSourceExtension == this.mPm1.DataSourceExtension)) {

          /// Add code to compare Entity types

                }

      }

 

Note that the EntityTypeInfoGetAllDynamicTypes method is unfortunately misnamed – it will return all known entity types, and also returns everything for all known data source extensions.  (We might enter a defect report to fix this.)  Anyway, if you then filter out actual dynamic types for your data source extension, you can then compare the dynamic type that you found with the dynamic type that you would like to create.

 
]]> Tue, 31 Jul 2007 14:57:24 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=243&PID=819#819 Check existence of dynamic entity : How do we check for the existence... http://www.ideablade.com/forum/forum_posts.asp?TID=243&PID=536#536 Author: naveen.menon
Subject: 243
Posted: 12-Jul-2007 at 7:57pm

How do we check for the existence of an dynamic entity prior to creating a new one?

For e.g, I create such an entity, as below.
 

DynamicEntityTypeBuilder.CreateType("ProjectTypeCount", "Default")

If this line executes a second time, I get a message that says "Entity already exists".
 
How can I query the persistence manager to check if this entity already exists ?
 
Thanks.
]]> Thu, 12 Jul 2007 19:57:34 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=243&PID=536#536