How to test if external id exists in python?

Question

Hello there,

My custom module controller make a string like « point_of_sale.index_2 ».

In Odoo, python, how to test if this external ID exists in my DB before to use it later in the code?

If I use this external ID in my python code and it doesn't exist, I get an error.

Thanks for your idea.

Emanuel Cino · Accepted Answer

You could surround your code using that external_id with try/catch and do the appropriate thing in the catch clause if that id does not exist. If you need to do that check prior to the actual use of it you could use the method get_object_reference from ir_model_data and surround the code with try/except, like this:

try:

self.pool.get('ir.model.data').get_object_reference(cr, uid, 'module_name', 'external_id')

except ValueError:

# do whatever

try:

self.pool.get('ir.model.data').get_object_reference(cr, uid, 'module_name', 'external_id')

except ValueError:

# do whatever

相关帖文	回复	查看
'No such external ID currently defined in the system' while installing a new module external id	0 3月 15	3376
How can i solve this: The module restaurant_pos is openerp 6.1. But i need to change it so i can use it on openerp 7. Any Help? external id	0 3月 15	4063
Openerp 7 Python Related error python external dependencies	1 3月 15	4194
Difference between python and YAML tests test python yml	1 3月 15	6823
Use id's object like default value for another field python default id value	1 3月 15	8308

此问题已终结

喜欢讨论吗？不要只阅读，加入进来！