I'm building an app that does most of its work via AJAX, so I don't
think the form-based methods for working with associations in the docs
will work, and I can't figure out how to update and create
hasAndBelongsToMany relationships from a controller.
What I have is basically a posts table, a tags, table, and a posts_tags
table as expected. The HABTM relationship works perfectly for
retrieving data: When I retrieve posts I get the tags along with them.
But saving is another matter. I've tried passing various permutations
of the following array to Post->save():
Array
(
[Post] => Array
(
[name] => postname
[id] => 138
)
[Tag] => Array
(
[0] => Array
(
[name] => test tag
)
)
)
...which I would expect to save a relationship between post #138 and
the tag named "test tag", creating the tag if necessary. Is that
possible? If so, what am I doing wrong?
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