问题
From a form "A" I want to open a specific form "B" when I click on a Many2One field. I placed into the context of this field the usual
'form_view_ref': 'model.form_id'
but this works only when "A" is in edit mode. If it is in view mode it opens instead the "C" form. I noticed that JSON request just "lose" the context i set and send the standard empty one (with just timezone/uid etc.)
I never realized this before. Is it some kind of bug?
回答1:
@Alessandro Ruffolo,
context is variable between server client, and context has common attributes like uid, active_d, active_ids, active_model, User timezone, user lang. When calling an ORM method, you will probably already have a context - for example the framework will provide you with one as a parameter of almost every method.
If you do have a context, it is very important that you always pass it through to every single method you call. But when you don't pass context somewhere on any method in python or js client side server will generate new context, and their are so many place with old in core code that context is broken by not passing. When you don't pass context, it breaks context and prepare new context.
With New v8 API context is more consistent as that’s not required.
Bests
来源：https://stackoverflow.com/questions/31677549/openerp-when-in-view-mode-fields-lose-context