---
title: "SQL-175: Retrieve Employee via GetApproverMailId"
summary: Read operation against Employee via NHibernate ORM.
status: draft
owner: SAIF Doc Gen
last_reviewed: 2026-09-24
library: SAIF.Services
reference_type: package
---

# SQL-175: Retrieve Employee via GetApproverMailId

This statement looks up a single `Employee` row by ID to read its `UserId`, used as the mail ID of a legal bill's approver. When the recorded approver is the outside-counsel placeholder, the manager's employee ID (resolved separately via `_legalQueryProvider.GetAttorneyProfile`) is used instead of the recorded approver ID. The `Employee` entity's `ClassMap` lives in the external `SAIF.Framework.Data.NHibernate` package; Legends resolved only the table name (`ADP_EMPLOYEE`), so the columns used here are shown as C# property names.

## Classification

| Field | Value |
| --- | --- |
| **SQL ID** | SQL-175 |
| **Operation type** | Read |
| **Execution method** | ORM (NHibernate LINQ) |
| **Database** | Oracle |
| **Schema** | [unqualified]** |
| **Command type** | N/A (ORM-generated) |
| **Business object** | `Employee` |
| **Criteria property** | N/A — ORM |
| **Lifecycle method** | `GetApproverMailId` |

## Parameters

| Parameter | Direction | Type | Max length | Description |
| --- | --- | --- | --- | --- |
| `:managerEmployeeId` | Input | string | N/A | Branch A: `x.Id == _legalQueryProvider.GetAttorneyProfile(approvedByEmployeeId).ManagerEmployeeId` → column Id (unresolved) |
| `:approvedByEmployeeId` | Input | string | N/A | Branch B: `x.Id == approvedByEmployeeId` → column Id (unresolved) |

## Tables

| Table | Access | Columns used |
| --- | --- | --- |
| [ADP_EMPLOYEE](../database-tables.md#adp_employee)** | SELECT | full entity; filter Id (C# property names — column mapping unresolved) |

## LINQ statement

Source: `Services/SAIF.Services/Legal/Bills/BillPaymentService.cs:476`

```csharp
return
    approvedByEmployeeId == "OUTSIDECNCL"
        ? _unitOfWork.GetRepository<Employee>()
            .Query()
            .Single(
                x =>
                    x.Id ==
                    _legalQueryProvider.GetAttorneyProfile(approvedByEmployeeId).ManagerEmployeeId)
            .UserId
        : _unitOfWork.GetRepository<Employee>()
            .Query()
            .Single(x => x.Id == approvedByEmployeeId).UserId;
```

## Sample SQL

> **Inferred SQL:** This SQL was inferred from the LINQ statement above and the NHibernate mappings. It is not concrete SQL from source code; NHibernate generates the executed statement at runtime, so aliases, column order, join syntax, and bind-parameter names may differ.

```sql
-- Inferred from LINQ (NHibernate mapping translation); not concrete SQL
-- Branch A (approvedByEmployeeId == "OUTSIDECNCL"): manager id resolved first by
--   _legalQueryProvider.GetAttorneyProfile(approvedByEmployeeId).ManagerEmployeeId (separate query, client-side capture)
SELECT E.Id, E.UserId, E.EmployeeStatusCode, E.FirstName, E.LastName, E.PreferredName,
       E.EmailAddress, E.Phone, E.Department, E.JobTitle /* , ...remaining EmployeeMap columns */
       -- unresolved mapping: Employee.* (C# property names; physical columns not resolvable)
FROM   ADP_EMPLOYEE E
WHERE  E.Id = :managerEmployeeId                         -- unresolved mapping: Employee.Id
-- NHibernate expects at most one row

-- Branch B (otherwise)
SELECT E.Id, E.UserId, E.EmployeeStatusCode, E.FirstName, E.LastName, E.PreferredName,
       E.EmailAddress, E.Phone, E.Department, E.JobTitle /* , ...remaining EmployeeMap columns */
       -- unresolved mapping: Employee.* (C# property names; physical columns not resolvable)
FROM   ADP_EMPLOYEE E
WHERE  E.Id = :approvedByEmployeeId                      -- unresolved mapping: Employee.Id
-- NHibernate expects at most one row
```

Translation notes:
- ** = unresolved column mapping (C# property names shown). Table name `ADP_EMPLOYEE` is from Legends documentation of `SAIF.Framework.Data.NHibernate`.
- `SingleOrDefault`/`Single` add no row limit; NHibernate throws if more than one row is returned. `Single` (not `SingleOrDefault`) throws if no row.
- `.UserId` is read from the materialized entity in memory.
- The captured `GetAttorneyProfile(...)` call is evaluated client-side before the query is sent; its own SQL belongs to the legal query provider, not this statement.

## Operations and processes
- BillPaymentService.GetApproverMailId — see [Operations and processes](../operations-processes.md)

## Sources
- `Services/SAIF.Services/Legal/Bills/BillPaymentService.cs (L478, L485)`