How to hide button on create mode in Odoo

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I know I can hide form button using built-in css class like oe_edit_only or oe_read_only

But how to hide an button when creating an item (and show the button only after the item is created, regardless when at read or edit mode)? I tried to look at the base.css file and found no class for this.

Is there a built-in css class for this? Or is there a function in the QWEB for this?

odoo-8 odoo python
1 Answers

If you are creating the method you don't have the id stored in the database yet. So you can do something like this:

<field name="id" invisible="True"/>
<button attrs="{'invisible': [('id', '=', False)], }"/>
user_48917170
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