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docs/ai/DataPRO/Modules/PreviousDBVersions/Version57/DatabaseExport/SettingsDB.md

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+---
+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)
+``