learning-hours/db-subclass-to-dto
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Add Before.Console — console app demonstrating ActiveRecord pattern

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Scaffold Before.Console project referencing the Before library.
Implements a straight-line demo that creates clients/orders, saves
them via DbBase.Context (singleton), lists all clients with orders,
and finds a client by name using Client.FindByName().
This commit is contained in:
mostalive
2026-09-14 20:50:25 +01:00
parent 8b46fccf08
commit 06a12e55f8
3 changed files with 84 additions and 1 deletions
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db-subclass-to-dto.sln
+16 -1
View File
@@ -1,4 +1,4 @@
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.0.31903.59
@@ -17,6 +17,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "tools", "tools", "{07C2787E
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ExtractMethod", "tools\ExtractMethod\ExtractMethod.csproj", "{3E8944E9-BB07-424B-B3A6-59FB072BAB3C}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Before.Console", "src\Before.Console\Before.Console.csproj", "{AC39E693-E83D-4B50-A120-0DE259108AF2}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
@@ -75,6 +77,18 @@ Global
{3E8944E9-BB07-424B-B3A6-59FB072BAB3C}.Release|x64.Build.0 = Release|Any CPU
{3E8944E9-BB07-424B-B3A6-59FB072BAB3C}.Release|x86.ActiveCfg = Release|Any CPU
{3E8944E9-BB07-424B-B3A6-59FB072BAB3C}.Release|x86.Build.0 = Release|Any CPU
{AC39E693-E83D-4B50-A120-0DE259108AF2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{AC39E693-E83D-4B50-A120-0DE259108AF2}.Debug|Any CPU.Build.0 = Debug|Any CPU
{AC39E693-E83D-4B50-A120-0DE259108AF2}.Debug|x64.ActiveCfg = Debug|Any CPU
{AC39E693-E83D-4B50-A120-0DE259108AF2}.Debug|x64.Build.0 = Debug|Any CPU
{AC39E693-E83D-4B50-A120-0DE259108AF2}.Debug|x86.ActiveCfg = Debug|Any CPU
{AC39E693-E83D-4B50-A120-0DE259108AF2}.Debug|x86.Build.0 = Debug|Any CPU
{AC39E693-E83D-4B50-A120-0DE259108AF2}.Release|Any CPU.ActiveCfg = Release|Any CPU
{AC39E693-E83D-4B50-A120-0DE259108AF2}.Release|Any CPU.Build.0 = Release|Any CPU
{AC39E693-E83D-4B50-A120-0DE259108AF2}.Release|x64.ActiveCfg = Release|Any CPU
{AC39E693-E83D-4B50-A120-0DE259108AF2}.Release|x64.Build.0 = Release|Any CPU
{AC39E693-E83D-4B50-A120-0DE259108AF2}.Release|x86.ActiveCfg = Release|Any CPU
{AC39E693-E83D-4B50-A120-0DE259108AF2}.Release|x86.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
@@ -84,5 +98,6 @@ Global
{E65C0410-A863-44B0-88A4-6C74EF929419} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
{F5E0C182-CBC3-4440-AF8F-32887F9B589C} = {0AB3BF05-4346-4AA6-1389-037BE0695223}
{3E8944E9-BB07-424B-B3A6-59FB072BAB3C} = {07C2787E-EAC7-C090-1BA3-A61EC2A24D84}
{AC39E693-E83D-4B50-A120-0DE259108AF2} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
EndGlobalSection
EndGlobal
src/Before.Console/Before.Console.csproj
+14
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@@ -0,0 +1,14 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net10.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\Before\Before.csproj" />
</ItemGroup>
</Project>
src/Before.Console/Program.cs
+54
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@@ -0,0 +1,54 @@
using Before;
// ---------------------------------------------------------------------------
// Before.Console — a straight-line demo of the ActiveRecord-style pattern.
//
// The console app sets DbBase.Context (the shared singleton) once at startup,
// then creates client/order entities, saves them through the context, and
// queries back using the ActiveRecord entry points:
// • Client.FindByName(name, context)
// • listing via DbBase.Context!.Tracked
// ---------------------------------------------------------------------------
var ctx = new DbContext();
DbBase.Context = ctx;
// ----- seed data ----------------------------------------------------------
var jane = new Client { Name = "Jane Doe" };
var bob = new Client { Name = "Bob Smith" };
jane.Orders.Add(new Order { Description = "Design consultation" });
jane.Orders.Add(new Order { Description = "Website redesign" });
bob.Orders.Add(new Order { Description = "Monthly retainer" });
// Orders need to be attached too so they get IDs:
ctx.Attach(jane.Orders[0]);
ctx.Attach(jane.Orders[1]);
ctx.Attach(bob.Orders[0]);
ctx.Attach(jane);
ctx.Attach(bob);
ctx.Save();
// ----- list all clients ---------------------------------------------------
Console.WriteLine("=== All Clients ===");
foreach (var client in DbBase.Context!.Tracked.OfType<Client>())
{
Console.WriteLine($"{client.Name} [{client.Id}]");
foreach (var order in client.Orders)
Console.WriteLine($" - order [{order.Id}]: {order.Description}");
}
// ----- find by name -------------------------------------------------------
Console.WriteLine("\n=== Find by Name ===");
var found = Client.FindByName("Jane Doe", DbBase.Context);
if (found is not null)
{
Console.WriteLine($"Found: {found.Name} [{found.Id}]");
Console.WriteLine($" Orders: {found.Orders.Count}");
}
else
{
Console.WriteLine("Not found.");
}