---
source_files:
  - DataPRO/Modules/PreviousDBVersions/Version57/DatabaseExport/SettingsDB/Setting.cs
  - DataPRO/Modules/PreviousDBVersions/Version57/DatabaseExport/SettingsDB/GlobalSetting.cs
  - DataPRO/Modules/PreviousDBVersions/Version57/DatabaseExport/SettingsDB/SettingsDB.cs
generated_at: "2026-04-17T15:55:29.267823+00:00"
model: "zai-org/GLM-5-FP8"
schema_version: 1
sha256: "08773b944623c2c5"
---

# SettingsDB Module Documentation

## 1. Purpose

This module provides a singleton-based mechanism for storing and retrieving application settings from a database. It implements a cached settings layer where global configuration values are read from the database on first access and cached in memory. The module is part of a legacy database version (Version57) and supports string, integer, and boolean setting types. It assumes an existing database connection has been established via `DbOperations`.

---

## 2. Public Interface

### `Setting` (Abstract Base Class)

**Constructor:**
```csharp
public Setting(string id, PropertyTypes type, string defaultPropertyValue, string userId)
```
Initializes a new setting with the given ID, type, default value, and user ID. Calls `GetPropertyValue(defaultPropertyValue)` during construction.

**Properties:**
- `public string PropertyId` — Read-only accessor for the setting's string identifier.
- `public string PropertyValue` — Read-only accessor for the setting's string value.

**Enum:**
```csharp
public enum PropertyTypes
{
    User = 1 << 0,    // Value: 1
    Global = 1 << 1   // Value: 2
}
```

**Methods:**
- `protected abstract void GetPropertyValue(string defaultValue)` — Abstract method that derived classes must implement to retrieve the property value (typically from database).
- `public void SetValue(string value)` — Sets `_propertyValue` to the provided string.

---

### `GlobalSetting` (Concrete Class)

Inherits from `Setting`.

**Constructor:**
```csharp
public GlobalSetting(string id, string defaultPropertyValue)
``