What options do I have when trying to update and refer to a many2many field?
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For a many2many field, a list of tuples is expected. Here is the list of tuples that are accepted, with the corresponding semantics:
- (0, 0, { values }) link to a new record that needs to be created with the given values dictionary
- (1, ID, { values }) update the linked record with id = ID (write values on it)
- (2, ID) remove and delete the linked record with id = ID (calls unlink on ID, which will delete the object completely, and the link to it as well)
- (3, ID) cut the link to the linked record with id = ID (delete the relationship between the two objects but do not delete the target object itself)
- (4, ID) link to existing record with id = ID (adds a relationship)
- (5) unlink all (like using (3,ID) for all linked records)
- (6, 0, [IDs]) replace the list of linked IDs (like using (5) then (4,ID) for each ID in the list of IDs)
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