How to display button when checkbox is true if both are from different models.? - odoo

Question

I am trying to add custom settings in purchase order.
In that I am facing problem to link action of checkbox with button. I am trying to display a button when the checkbox in purchase settings is "True" if not then do not display.
Here's my code:
I am using wizard which inherits purchase.config.settings to add a checkbox "allow_settings"
class ConfigSettingsWizard(models.TransientModel):
_inherit = 'purchase.config.settings'
allow_settings = fields.Boolean("settings")
inherited_purchase_config_settings_views.xml:
<record id="inherited_purchase_config_settings_form_views" model="ir.ui.view">
<field name="model">purchase.config.settings</field>
<field name="inherit_id" ref="purchase.view_purchase_configuration"/>
<field name="arch" type="xml">
<xpath expr="//field[#name='group_warning_purchase']" position="after">
<label string="Setting"/>
<div>
<field name="allow_settings" class="oe_inline"/>
<label for="allow_settings"/>
</div>
</xpath>
</field>
</record>
And a model "Mymodel" which inherit purchase.order
class MyModel(models.Model):
_inherit = 'purchase.order'
xml:
<field name="model">purchase.order</field>
<field name="inherit_id" ref="purchase.purchase_order_form"/>
<field name="arch" type="xml">
<xpath expr="//button[#name='button_cancel']" position="after">
<button name="add_button" string="Add" type="object" class="btn-primary" />
</xpath>
</field>
Both button and the checkbox are in different models and are inherited from different models.
Is there any way to get data from one model to another model?

Answer 1

Try below code.
class ConfigSettingsWizard(models.TransientModel):
_inherit = 'purchase.config.settings'
allow_settings = fields.Selection([(0, 'Not Visible'),(1, 'Make visible')],
"Settings", implied_group='your_module.group_name')
In xml file:
<field name="model">purchase.order</field>
<field name="inherit_id" ref="purchase.purchase_order_form"/>
<field name="arch" type="xml">
<xpath expr="//button[#name='button_cancel']" position="after">
<button name="add_button" string="Add" type="object" class="btn-primary" groups="your_module.group_name" />
</xpath>
</field>
Hope it will help you.