Odoo - prevent button from closing wizard

Question

I have a transient model that serves as a dialog. In my form view I have a button like this:

Answer 1

yesterday I bumped on this same issue. I needed to show a button to do something without submitting the whole wizaard. I worked around it by not using a button at all. It's pretty simple and effective. What you need:

1. a boolean flag in your wizard model
2. an onchange attached to the flag (that replaces you sumbmit function)
3. replace the button in the view w/ the flag w/ invisible="1" and a label to be styled as a button

Here's the code:

source_it = fields.Boolean(string='Source')
[...]
def action_source(self):
    # do stuff

@api.onchange('source_it')
def onchange_source_it(self):
    if self.env.context.get('sourcing_now') or not self.source_it:
        return
    self.action_source()
[...]

The trick works because when a label has for attribute is going to act like the checkbox itself, so if you click on the label you are actually switching the checkbox.