[IMP] models: ORM speedup

This branch is the combination of several optimizations in the ORM:

* store field values once in the cache: the cache reflects more
faithfully the database, only fields that explicitly depend on the
context have an extra indirection in the cache;

* delay recomputations by default: use method `recompute` to explicitly
flush out pending recomputations;

* delay updates in method `write`: updates are stored in a data
structure that can be flushed efficiently to the database with method
`flush` (which also flush out recomputations);

* make method `modified` take advantage of inverse fields to inverse
dependencies;

* filter records by evaluating a domain on records in Python;

* a computed field with `readonly=False` behaves like a normal field
with an onchange method;

* computed fields are computed in superuser mode by default.

Work done by Toufik Ben Jaa, Raphael Collet, Denis Ledoux and Fabien
Pinckaers.

closes odoo/odoo#35659

Signed-off-by: Denis Ledoux <beledouxdenis@users.noreply.github.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/odoo/modules/loading.py b/odoo/modules/loading.py
index bc423861c90..1551bdc3800 100644
--- a/odoo/modules/loading.py
+++ b/odoo/modules/loading.py
@@ -268,6 +268,7 @@ def load_module_graph(cr, graph, status=None, perform_checks=True,
             for kind in ('init', 'demo', 'update'):
                 if hasattr(package, kind):
                     delattr(package, kind)
+            module.flush()
 
         if package.name is not None:
             registry._init_modules.add(package.name)
@@ -391,7 +392,7 @@ def load_modules(db, force_demo=False, status=None, update_module=False):
 
             cr.execute("update ir_module_module set state=%s where name=%s", ('installed', 'base'))
             Module.invalidate_cache(['state'])
-
+            Module.flush()
 
         # STEP 3: Load marked modules (skipping base which was done in STEP 1)
         # IMPORTANT: this is done in two parts, first loading all installed or
@@ -451,6 +452,7 @@ def load_modules(db, force_demo=False, status=None, update_module=False):
 
             # Cleanup orphan records
             env['ir.model.data']._process_end(processed_modules)
+            env['base'].flush()
 
         for kind in ('init', 'demo', 'update'):
             tools.config[kind] = {}
@@ -513,6 +515,7 @@ def load_modules(db, force_demo=False, status=None, update_module=False):
         env = api.Environment(cr, SUPERUSER_ID, {})
         for model in env.values():
             model._register_hook()
+        env['base'].flush()
 
         # STEP 9: save installed/updated modules for post-install tests
         registry.updated_modules += processed_modules