A View to Remove Documents which are included in Document Collections

Question

Dear Forum, 
 I have a document class called email correspondence. This email correspondence links to a particular asset which is an Object. 
 Within this class I want to create document collections to view my emails by major topics. 
 I have successfully created some document collections. And now I want to create a view which shows only my emails which are not already in document collections. 
 I already have a view that shows me the document collections. 
 Can anyone provide some advice on what filter settings I might use to achieve this. Is it even possible? 
 Many thanks and regards,

Craig Hawker · Accepted Answer

The issue is that the "is in a document collection" flag exists on the document collection (the collection points to its members), not on the document itself. Therefore there's nothing natively that you can use to filter the list of documents. 
 I guess that it would be possible to add a property to add documents that has the value of "Is in document collection: False". This property would need to be on all objects. You would then need to have some script created that, when a document were added to a collection, the document were checked out and the value changed to "true". The filter then becomes simple ("is in document collection = false"). 
 The script would need to deal with a reasonable number of edge cases, though (e.g. when a document were removed from the collection, or when a document is added but checked out so cannot be modified, etc.). I don't have such an example script available, unfortunately.

Craig Hawker · Answer

I can't quite picture what you have configured (i.e. was the asset point separate to the document collection point)? 
 If you want to list all documents that do not have an asset then the key here is probably that the "is empty" filter doesn't match objects that do not have the property at all. This often trips people up, and the only way around it is to ensure that all of your document class definitions contain the "asset" property.

A View to Remove Documents which are included in Document Collections

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