[IMP] precompute last_rec_date

[ADD] index last_rec_date

account_financial_report_webkit/__init__.py

@@ -21,3 +21,5 @@
 from . import models
 from . import wizard
 from . import report
+from . import hooks
+from .hooks import pre_init_hook

account_financial_report_webkit/__openerp__.py

@@ -60,4 +60,5 @@
     'active': False,
     'installable': True,
     'application': True,
+    'pre_init_hook': 'pre_init_hook',
 }

account_financial_report_webkit/hooks.py

@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+# © 2017 Therp BV <http://therp.nl>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+from .models.account_move_line import AccountMoveLine
+
+
+def pre_init_hook(cr):
+    with cr.savepoint():
+        # don't break if column exists
+        cr.execute(
+            'alter table account_move_line add column last_rec_date date',
+        )
+        cr.execute(
+            'comment on column account_move_line.last_rec_date is %s',
+            (AccountMoveLine.last_rec_date.string,),
+        )
+        cr.execute(
+            'create index account_move_line_last_rec_date_index '
+            'on account_move_line (last_rec_date)',
+        )
+    # but still do the initialization
+    cr.execute(
+        """update account_move_line
+        set last_rec_date=ml_fr.date
+        from account_move_line ml
+        left join account_move_reconcile fr on ml.reconcile_id=fr.id
+        join (
+            select
+            coalesce(reconcile_id, reconcile_partial_id) as reconcile_id,
+            max(date) as date
+            from account_move_line
+            group by coalesce(reconcile_id, reconcile_partial_id)
+        ) ml_fr on ml_fr.reconcile_id=fr.id
+        where ml.id=account_move_line.id"""
+    )

account_financial_report_webkit/models/account_move_line.py

@@ -18,6 +18,7 @@ class AccountMoveLine(models.Model):
     last_rec_date = fields.Date(
         compute='_compute_last_rec_date',
         store=True,
+        index=True,
         string='Last reconciliation date',
         help="The date of the last reconciliation (full or partial) "
         "account move line."