I hear you. BTW, how would you recommend checking for a change in content?
Tim From: [email protected] [mailto:[email protected]] On Behalf Of Danny Sokolsky Sent: Wednesday, August 21, 2013 4:17 PM To: MarkLogic Developer Discussion Subject: Re: [MarkLogic Dev General] Does adding a document to a collection trigger a CPF domain? Well, that is not quite how collections work. A collection can technically exist without any documents belonging to it. There is not really an entity of a collection; rather, it is a way to ask the database "show me all the documents that have this collection". If there are no documents in that collection, then that query returns nothing. Chris likes to describe it this way: "I have a collection of classic cars. It just so happens that there are no cars in that collection." I don't think that having the two sets of domains would work, because the CPF steps are triggered on updates, and in the case that you had documents in 2 domains, both would fire and would give you overlapping domains, which is not desirable. I think the safest way to deal with this is to add some logic to your pipeline actions to notice when the update did not actually change your content and skip the processing that assumes updated content. -Danny From: [email protected] [mailto:[email protected]] On Behalf Of Tim Sent: Wednesday, August 21, 2013 12:46 PM To: 'MarkLogic Developer Discussion' Subject: Re: [MarkLogic Dev General] Does adding a document to a collection trigger a CPF domain? Hi Danny, Thanks for the info. While I understand that adding a collection updates a document, the domain configuration I used is based on the directory URI, not on collection. In other words I think a document should belong to a collection, not a collection to a document. So if a document is added to a collection for which a collection-based content processing domain exists, then it should trigger an update, but not if a collection is added to a document that is scoped in a directory URI-based content processing domain where no content is changed. It is what it is and I got caught because I added the collection and it prematurely fired the update. I did not think of the ramifications beforehand. The only other suggestion I would have is that by separating an update between content and collection updates, it would effectively provide a means of defining separate collection-based and directory URI-based content processing domains without any overlap. Adding a collection could then be a means of scoping a subset of documents for subsequent processing much like applying a relational database view without triggering any events. Just something to think about. Tim From: [email protected] [mailto:[email protected]] On Behalf Of Danny Sokolsky Sent: Wednesday, August 21, 2013 2:20 PM To: MarkLogic Developer Discussion Subject: Re: [MarkLogic Dev General] Does adding a document to a collection trigger a CPF domain? Hi Tim, Yes, adding a document to a collection would fire an update trigger because adding a collection is an update. What you could do is have the updates that add a collection put the document into some state that, when triggered, would have an action that is a noop. -Danny From: [email protected] [mailto:[email protected]] On Behalf Of Tim Sent: Tuesday, August 20, 2013 8:22 PM To: 'MarkLogic Developer Discussion' Subject: [MarkLogic Dev General] Does adding a document to a collection trigger a CPF domain? Hi Folks, I have some documents in a directory URI with a CPF domain tied to trigger actions whenever a document is inserted or updated in that directory URI. I would like to add the documents in this directory URI to a collection (which is more like adding a collection to the document). Will this trigger the CPF actions even though I'm not changing any content in the document? Thank you! Tim Meagher
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