This patch aims to fix multiple issues with the removal of table
constraints at module uninstall.
1. We cannot remove `ir.model.constraint` records before calling
`_module_data_uninstall` on them. Otherwise we either won't find them
when performing the search
`self.env['ir.model.constraint'].search([('module', 'in',
modules.ids)]` or, if we somehow keep the ids and use `browse`
instead, would get an error because `_module_data_uninstall` tries to
access field values of records already removed. Note, although not an
issue, the removal is redundant for non FK constraints since
`_model_data_uninstall` already unlinks the record.
2. When a constraint has a name longer than 63 characters (Postgres
default) we would fail the check for the existence of the constraint
since the names are truncated.
3. When checking for the presence of a constraint we assumed its type
would be `u` in `pg_constraint` because for us that means non FK
(i.e. not `f` type). That's incorrect since there are many more
types. Here we propose to handle `c,u,x` types.
For bullet 2 we use `tools.make_identifier` that hashes the name and
ensures it fits in the 63 chars limit.
Revert "[IMP] models: warn if constraint key len exceed 63"
The check from commit 823d9e10dc is no
longer needed since the name is ensured to fit length limit.
[IMP] code: improve uninstall tests
Perform extra checks for removal of SQL constraints. Note the test is
commented out in `__init__.py`. It can be uncommented locally for
testing. It's kept commented out to avoid random errors in runbot.
closesodoo/odoo#129084
X-original-commit: af288b7178c25261329dd85a2e64b9dd635cd9e1
Signed-off-by: Raphael Collet <rco@odoo.com>