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i want to disable the "add one line" in a many2many tags tree after adding one single line ? is that possible ? i tried
<field name="indication_ids" >
<tree editable="bottom" options="{'no_create_edit': True}" >
<field name="motor_vehicule"/>
<field name="steel_griders"/>
<field name="wood"/>
</tree>
</field>
but it disables the "add one line" totally, not allowing me to add a single line
Hi,
You can do something like this, add a constrains to one2many field, such a way that it will throw validation error, if there is multiple lines in the one2many line.
@api.constrains('o2m_field')
def _check_o2m_field(self):
if len(self.o2m_field.ids) > 1:
raise ValidationError(_('Warning! You cannot add multiple lines.'))
Thanks
Many thanks Niyas
Thanks for this preposition.
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