Initial commit

Fusion Accounting/models/executive_summary_report.py

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+# Fusion Accounting - Executive Summary Report
+
+from odoo import fields, models
+from odoo.exceptions import UserError
+
+
+class ExecutiveSummaryReport(models.Model):
+    """Extends the accounting report to provide an executive summary metric
+    that computes the number of days in the selected reporting period."""
+
+    _inherit = 'account.report'
+
+    def _report_custom_engine_executive_summary_ndays(
+        self, expressions, options, date_scope,
+        current_groupby, next_groupby,
+        offset=0, limit=None, warnings=None,
+    ):
+        """Calculate the total number of calendar days within the report period.
+
+        This engine expression is used by the executive summary layout to
+        display the length of the chosen date window.  Group-by is
+        intentionally unsupported because the metric is inherently scalar.
+        """
+        if current_groupby or next_groupby:
+            raise UserError(
+                "The executive summary day-count expression "
+                "does not support grouping."
+            )
+
+        period_start = fields.Date.from_string(options['date']['date_from'])
+        period_end = fields.Date.from_string(options['date']['date_to'])
+        elapsed = period_end - period_start
+        return {'result': elapsed.days}