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codemixinv15
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I want to add 'portal.mixin' to an existing odoo model 'stock.picking' in my custom module


I thought this would do the trick:

class StockPicking(models.Model):    
	​_inherit = ['stock.picking', 'portal.mixin']

But i get this stack trace:

Traceback (most recent call last):
  File "/opt/odoo15/odoo/odoo/service/server.py", line 1260, in preload_registries
    registry = Registry.new(dbname, update_module=update_module)
  File "/opt/odoo15/odoo/odoo/modules/registry.py", line 87, in new
    odoo.modules.load_modules(registry, force_demo, status, update_module)
  File "/opt/odoo15/odoo/odoo/modules/loading.py", line 470, in load_modules
    processed_modules += load_marked_modules(cr, graph,
  File "/opt/odoo15/odoo/odoo/modules/loading.py", line 363, in load_marked_modules
    loaded, processed = load_module_graph(
  File "/opt/odoo15/odoo/odoo/modules/loading.py", line 199, in load_module_graph
    registry.init_models(cr, model_names, {'module': package.name}, new_install)
  File "/opt/odoo15/odoo/odoo/modules/registry.py", line 428, in init_models
    model._auto_init()
  File "/opt/odoo15/odoo/odoo/models.py", line 2795, in _auto_init
    raise_on_invalid_object_name(self._name)
  File "/opt/odoo15/odoo/odoo/models.py", line 104, in raise_on_invalid_object_name
    raise ValueError(msg)
ValueError: The _name attribute StockPicking is not valid.

What am I doing wrong ?


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Martín Rodríguez Paradela
Mejor respuesta

I think that's because to use mixins you need to define the model not just inheriting. I think you could jus overwrite the already existing module 'stock.picking' with the same name and that'll work, try:

class StockPicking(models.Model):
	​	​_name = 'stock.picking'    
	​_inherit = ['stock.picking', 'portal.mixin']


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Cristhian Orlando Guachán Cuásquer
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you can do this

class StockPicking(models.Model):
    _name = 'stock.picking'
    ​_inherit = ['stock.picking', 'portal.mixin']
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