toby, I'm interested in the write-up you mentioned, but am unsure of your email address.
can you forward it to me? thanks! david [EMAIL PROTECTED] -----Original Message----- From: Toby Tremayne [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 16, 2002 10:27 PM To: Spectra-Talk Subject: Re: Versioning Questions Hello Stephen, we've just finished implementing versioning throughout our cms - it works fairly well but there are a few things to be aware of. As far as making changes to versions, this is how we do it: we have a "content portal", where all existing content can be viewed, and new obejcts created. Whenever a new object is created or an existing object edited, the versioning kicks in out wizards are passed the version object to work on. When the wizard finishes, the new version is passed to the workflow system to be used as the artifact. When an obejct is finally approved in the workflow, the publishing system then rolls the versions over and all is good. The version store itself is just another codb - versions are pretty much normal objects - it's all handled therough the objecthistory property of your original objects. The main gotchas are making sure you reference the correct datasources when working with your objects, and a couple of other interesting undocmented bits and pieces. I've written a doc on one issue - using versioning tags in create handlers, I don't think this list supports attachments so if you want it just give me a yell. The other big issue that held us up for a while was metadata. In our wizards, several obejcts require metadata to be assigned - naturally we do the metadata assignment to the version object as we do't want to affect something already in publication until the workflow is approved. The problem is when you use the version rollback tag to make your working version the current version, it removes the stKeywords property. Inside the version rollback tag, it uses contentObjectData to save over the original object. ContentObjectdata can use three modes - passing individual properties through cfa_contentObjectProperty - passing a structure of properties to overwrite into the stProperties attribute, or passing an entire object into the stObject attribute. If you use stProperties, it will fail if the structure you pass in has any system-only attributes (IE objectID, stKeywords etc). And because the objectid etc within a version is DIFFERENT to the original object, we don't want to be overwriting these properties. so naturally the tag uses the stProperties method to ensure nothing vital is overwritten. It works like this: get the version object from the version datastore remove any non-user properties so as not to overwrite the original ones save the remaining properties over the contents of the original object. Obviously this means stKeywords gets removed as well, so if you were assigning metadata to your versions, all is lost. We got around this by retrieving the version ourselves and retaining a copy of the stKeywords structure immediately before calling the versionrollback tag. Then once the rollback is complete, we save the stKeywords to the original object. Works fine. Hope that helps, and if you need any more help, feel free to give me a yell Cheers, Toby Thursday, January 17, 2002, 9:29:40 AM, you wrote: SR> Hey all, SR> I have just started setting up some versioning on a site I am developing and SR> have some questions. First off, any suggestions as to which is the best SR> resource out there for information on content object versions with Spectra SR> 1.5.1? I am finding that the Allaire docs are a little, er, thin. SR> Also, does anyone know what the structure of the version DB is? For the time SR> being I am just using my normal CODB datasource as the version DB SR> datasource. Is this recommended? Where can I actually see the information SR> stored in WDDX. Do versioning setup new tables or rely on the existing SR> objects table? SR> Finally, is one able to make changes to verisions that are not the active SR> version? It seems there are no cfa tags to support this, but I have no SR> problem writing my own, is there a recommended methodology for this or is SR> this an atypical procedure? SR> Thanks in advance for any help, SR> Cheers, SR> Stephen SR> ______________________________________________________________________ Your ad could be here. Monies from ads go to support these lists and provide more resources for the community. http://www.fusionauthority.com/ads.cfm ------------------------------------------------------------------------------ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=lists&body=lists/spectra_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body.
