[FIX] stock: prevent concurrent procurement creation

When the user clicks on "Run Reordering Rules", it might create
procurements. However, the cron "Run mrp scheduler" will also create
procurements and might already be running in the background. Therefore,
we need to make sure that both actions don't run concurrently.

Note that the same check is done for the wizard "Run Schedulers".

opw-695607

addons/stock/wizard/procurement_orderpoint_compute.py

@@ -6,10 +6,12 @@
 #    - Order if the virtual stock of today is bellow the min of the defined order point
 #
 
-from odoo import api, models
+from odoo import api, models, tools
 
+import logging
 import threading
 
+_logger = logging.getLogger(__name__)
 
 class ProcurementOrderpointConfirm(models.TransientModel):
     _name = 'procurement.orderpoint.compute'
@@ -20,6 +22,17 @@ class ProcurementOrderpointConfirm(models.TransientModel):
             # As this function is in a new thread, I need to open a new cursor, because the old one may be closed
             new_cr = self.pool.cursor()
             self = self.with_env(self.env(cr=new_cr))
+            scheduler_cron = self.sudo().env.ref('procurement.ir_cron_scheduler_action')
+            # Avoid to run the scheduler multiple times in the same time
+            try:
+                with tools.mute_logger('odoo.sql_db'):
+                    self._cr.execute("SELECT id FROM ir_cron WHERE id = %s FOR UPDATE NOWAIT", (scheduler_cron.id,))
+            except Exception:
+                _logger.info('Attempt to run procurement scheduler aborted, as already running')
+                self._cr.rollback()
+                self._cr.close()
+                return {}
+
             self.env['procurement.order']._procure_orderpoint_confirm(
                 use_new_cursor=new_cr.dbname,
                 company_id=self.env.user.company_id.id)