d1-05-entity-migration

Original：🇺🇸 English

Translated

Creates an EF Core entity + runs the migration that creates its table in Postgres. CRUD drill Day 1 step 5. Trigger: 'day1 step5', 'create entity/table for up-api'. Use the entity name and columns exactly as user specifies — do not suggest or add columns.

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Sourcesoftinter-chiangrai/up-ai-skill-training

Added on2026-08-29

NPX Install

npx skill4agent add softinter-chiangrai/up-ai-skill-training d1-05-entity-migration

SKILL.md Content

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Day 1 · Step 5 — Entity + migration (no redeploy)

Before starting: Ask for:

Entity name (PascalCase, e.g.,
```
Product
```
,
```
Order
```
,
```
User
```
) — REQUIRED
Columns (format:
```
ColumnName:Type
```
, comma-separated, e.g.,
```
Name:string, Price:decimal, Stock:int
```
) — REQUIRED
Nullable columns (optional, default: all non-string/Id are non-nullable) — OPTIONAL

Use exactly as specified. Do not suggest, add, or modify columns.

up-api/Entities/<Entity>.cs

:

csharp

public class <Entity>
{
    public int Id { get; set; }
    // one property per given column, e.g.:
    // public string Name { get; set; } = string.Empty;
    // public decimal Price { get; set; }
}

Add to

AppDbContext

:

csharp

public DbSet<<Entity>> <Entity>s => Set<<Entity>>();

Run

cd up-api
dotnet ef migrations add Init<Entity>
dotnet ef database update

This runs against the already-running Postgres container via the

localhost:5432

connection string from the db-config step — no redeploy needed. Verify the table exists (

\dt

in

psql

, or a quick

docker exec

into the db container).

d1-05-entity-migration

NPX Install

Tags

SKILL.md Content

Day 1 · Step 5 — Entity + migration (no redeploy)