# 20260514184243_AddDescriptionToEbook

- File ID: file:145xyqd:20260514184243-adddescriptiontoebook-cs
- Path: NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.cs
- Role: database-config
- Layer: data

## Purpose

EF Core migration that adds a nullable text Description column to the Ebooks table and can remove it on rollback.

## Key Details

Adds a nullable text column named 'Description' to the 'Ebooks' table in Up(); Down() drops that column.

## Symbols

- AddDescriptionToEbook: EF Core migration that adds a nullable text Description column to the Ebooks table and can remove it on rollback.
- Up(): Apply schema change: add a nullable text 'Description' column to the 'Ebooks' table.
- Down(): Revert schema change: remove the 'Description' column from the 'Ebooks' table.
- AddDescriptionToEbook: EF Core Migration class that encapsulates the schema change to add/remove the Description column on Ebooks.

## Dependencies

- No resolved dependencies.

## Calls

- No resolved calls.

## Coverage

- Symbols: 4
- Executable symbols: 2
- Executable symbols with control flow: 2
- Grounded edges: 4
- Unresolved references: 0
- Control-flow fragments: 2
- Unresolved jumps: 0
- Unsupported constructs: 0
- Control-flow coverage: 100%
- Required diagrams: 2
- Generated diagrams: 2

## Control Flow Fragments

- Up: 3 nodes, 2 edges, 0 jumps, 0 unsupported constructs
- Down: 3 nodes, 2 edges, 0 jumps, 0 unsupported constructs

## Diagrams

### 20260514184243_AddDescriptionToEbook Neighborhood

```mermaid
flowchart LR
    class_1ca124f_adddescriptiontoebook("AddDescriptionToEbook")
    file_145xyqd_20260514184243_adddescriptiontoebook_cs("20260514184243_AddDescriptionToEbook")
    method_98t2qk_down[["Down()"]]
    method_e05nak_up[["Up()"]]
    type_8wi1r9_adddescriptiontoebook[/"AddDescriptionToEbook"/]
```

### 20260514184243_AddDescriptionToEbook Execution Overview

```mermaid
flowchart TD
    class_1ca124f_adddescriptiontoebook("AddDescriptionToEbook")
    method_98t2qk_down[["Down()"]]
    method_e05nak_up[["Up()"]]
    class_1ca124f_adddescriptiontoebook -->|contains| method_98t2qk_down
    class_1ca124f_adddescriptiontoebook -->|contains| method_e05nak_up
```

## Diagram Validation

- Status: pass
