Customer question about Display This, renaming and Tags associated with older versions.
"I made Revit Project a central file so that multiple BIM people could update it. I spent a lot of time adding dozens of filters (Display This) to the file. Then someone asked me to rename the container file. To rename a central file in Revit, you have to open the file detached and save as. I figured this would break the filters associated with the channel, and it definitely did. This will cost me two hours of work. Is there a way to associate or export/import filters from one file to the next? Or, is there a way to safely rename a file without breaking any links to filters?"
Great question! Check out the scenarios below.
SCENARIO 1: If the file name and/or path changes AND the hash stays the same, then when you re-index, all the tags will remain (because the hash did not change) and a new UUID is created.
CHANGES:
FILENAME ~ Changed
LOCATION ~ Changed
HASH ID ~ Same
RESULTS:
UUID ~ New
METADATA ~ Retain current keys/tags
SCENARIO 2: If the file name and path remains the same AND the hash changes, then when you re-index, any new tags will be added to the current tags and the UUID remains the same.
CHANGES:
FILENAME ~ Same
LOCATION ~ Same
HASH ID ~ Changed
RESULTS:
UUID ~ Same
METADATA ~ Adds any new tags and retains current keys/tags
SCENARIO 3: If either the path or file name changes AND the hash changes, then when you re-index, a new UUID is created.
CHANGES:
FILENAME ~Changed
LOCATION ~ Changed
HASH ID ~ Changed
RESULTS:
UUID ~ New
METADATA ~ Current Keys/Tags are not retained unless matches existing HASH
The keywords here are 'rename the container file', which changes the HASH ID and denotes that the file name changed. Therefore, AVAIL treats this as new content. Here are three scenarios I drew up for this user.
I bet that SCENARIO 3 matches this situation - AVAIL probably saw a new file name along with a new hash, therefore, it is considered a new piece of content.
If the user had indexed this file with the new hash, then updated the file name, their filters would have been fine. If you are going to change the filename in the future, make sure the hash is updated in the system by re-indexing first before updating the filename.