How do I transfer nodes categorized with one taxonomy term to another? Im on d7. I have a lot of nodes on my site that are all categorized with one of eight terms of my "category" vocabulary. I have been doing a theme redesign that calls for me to make a new taxonomy vocabulary that these node will be categorized in called "sections". I need a way to make all current nodes with "categories/term-1" to also have "sections/term-1", "categories/term-2" to have "sections/term-2", and so on. I was thinking I could do this with rules, but that would be a per node basis and I need this to update ALL current nodes. Any suggestions?
Thanks.
You can use hook_update_N() to update multiple nodes at once with a single run of update.php. Inside it you can load all the nodes that you need to modify using node_load(), and after you are done changing the taxonomies programatically, call node_save().