[IMP] shopfloor_base: Allow changing the way locks are acquired

This commit adds two new system parameters:

* shopfloor.lock.for_update.no_key: Can be defined with a True-ish
value to use FOR NO KEY UPDATE in the select to acquire a lock on
selected rows

* shopfloor.lock.for_update.no_wait: Can be defined with a True-ish
value to use NOWAIT and raise an error instead of waiting for the
lock to be acquired.

Note that NOWAIT keyword cannot be use in conjunction with SKIP LOCKED,
hence, if skip_locked arg is used, the value of no_wait parameter
will be ignored.

Author: grindtildeath

shopfloor_base/actions/lock.py

@@ -4,6 +4,8 @@
 import hashlib
 import struct
 
+from odoo.tools import str2bool
+
 from odoo.addons.component.core import Component
 
 
@@ -38,9 +40,22 @@ def for_update(self, records, log_exceptions=False, skip_locked=False):
         be obtained.
 
         """
-        query = "SELECT id FROM %s WHERE ID IN %%s FOR UPDATE"
+        no_key = str2bool(
+            self.env["ir.config_parameter"]
+            .sudo()
+            .get_param("shopfloor.lock.for_update.no_key")
+        )
+        no_wait = str2bool(
+            self.env["ir.config_parameter"]
+            .sudo()
+            .get_param("shopfloor.lock.for_update.no_wait")
+        )
+        for_update_str = " FOR NO KEY UPDATE " if no_key else " FOR UPDATE "
+        query = "SELECT id FROM %s WHERE ID IN %%s " + for_update_str
         if skip_locked:
             query += " SKIP LOCKED"
+        elif no_wait:
+            query += " NOWAIT"
         sql = query % records._table
         self.env.cr.execute(sql, (tuple(records.ids),), log_exceptions=log_exceptions)
         if skip_locked: