[IMP] queue_job: remove multi-db monkey patch

By using the X-Odoo-Database HTTP header that is natively supported by
Odoo, we achieve the same result.

Author: sbidoul

queue_job/__init__.py

@@ -4,7 +4,6 @@
 from . import wizards
 from . import jobrunner
 from .post_init_hook import post_init_hook
-from .post_load import post_load
 
 # shortcuts
 from .job import identity_exact

queue_job/__manifest__.py

@@ -31,5 +31,4 @@
     "development_status": "Mature",
     "maintainers": ["guewen", "sbidoul"],
     "post_init_hook": "post_init_hook",
-    "post_load": "post_load",
 }

queue_job/controllers/main.py

@@ -213,8 +213,7 @@ def _get_failure_values(cls, job, traceback_txt, orig_exception):
         save_session=False,
         readonly=False,
     )
-    def runjob(self, db, job_uuid, **kw):
-        http.request.session.db = db
+    def runjob(self, job_uuid, **kw):
         env = http.request.env(user=SUPERUSER_ID)
         job = self._acquire_job(env, job_uuid)
         if not job:

queue_job/jobrunner/runner.py

@@ -90,15 +90,17 @@ def _async_http_get(scheme, host, port, user, password, db_name, job_uuid):
     #       if this was python3 I would be doing this with
     #       asyncio, aiohttp and aiopg
     def urlopen():
-        url = f"{scheme}://{host}:{port}/queue_job/runjob?db={db_name}&job_uuid={job_uuid}"
+        url = f"{scheme}://{host}:{port}/queue_job/runjob?job_uuid={job_uuid}"
         # pylint: disable=except-pass
         try:
             auth = None
             if user:
                 auth = (user, password)
             # we are not interested in the result, so we set a short timeout
             # but not too short so we trap and log hard configuration errors
-            response = requests.get(url, timeout=1, auth=auth)
+            response = requests.get(
+                url, timeout=1, auth=auth, headers={"X-Odoo-Database": db_name}
+            )
 
             # raise_for_status will result in either nothing, a Client Error
             # for HTTP Response codes between 400 and 500 or a Server Error