bi_sql_editor: add support for group operators

this commit allows specifying the group operator for each field. This functionality was originally included in a seperate module "bi_sql_editor_aggregate" in version 12.

bi_sql_editor/models/bi_sql_view.py

@@ -9,7 +9,7 @@ from psycopg2 import ProgrammingError
 
 from odoo import SUPERUSER_ID, _, api, fields, models
 from odoo.exceptions import UserError
-from odoo.tools import pycompat, sql
+from odoo.tools import pycompat, sql, table_columns
 from odoo.tools.safe_eval import safe_eval
 
 from odoo.addons.base.models.ir_model import IrModel
@@ -726,6 +726,40 @@ class BiSQLView(models.Model):
             self._log_execute(req)
             sql_view.size = self.env.cr.fetchone()[0]
 
+    def check_manual_fields(self, model):
+        # check the fields we need are defined on self, to stop it going
+        # early on install / startup - particularly problematic during upgrade
+        if "group_operator" in table_columns(
+            self.env.cr, "bi_sql_view_field"
+        ) and model._name.startswith(self._model_prefix):
+            # Use SQL instead of ORM, as ORM might not be fully initialised -
+            # we have no control over the order that fields are defined!
+            # We are not concerned about user security rules.
+            self.env.cr.execute(
+                """
+SELECT
+    f.name,
+    f.ttype,
+    f.group_operator
+FROM
+    bi_sql_view v
+    LEFT JOIN bi_sql_view_field f ON f.bi_sql_view_id = v.id
+WHERE
+    v.model_name = %s
+;
+                """,
+                (model._name,),
+            )
+            sql_fields = self.env.cr.fetchall()
+
+            for sql_field in sql_fields:
+                if (
+                    sql_field[0] in model._fields
+                    and sql_field[1] in ("integer", "float")
+                    and sql_field[2]
+                ):
+                    model._fields[sql_field[0]].group_operator = sql_field[2]
+
     def button_preview_sql_expression(self):
         self.button_validate_sql_expression()
         res = self._execute_sql_request()