1010521: Organizational layout with PostgreSQL database

Samples/OrganizationalChartPostgresql/OrgChartSample/src/Api/Api.csproj

@@ -0,0 +1,26 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.3">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="10.0.3">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="10.*" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Shared\Shared.csproj" />
+  </ItemGroup>
+
+</Project>

Samples/OrganizationalChartPostgresql/OrgChartSample/src/Api/Api.csproj.user

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ActiveDebugProfile>https</ActiveDebugProfile>
+  </PropertyGroup>
+</Project>

Samples/OrganizationalChartPostgresql/OrgChartSample/src/Api/Api.http

@@ -0,0 +1,6 @@
+@Api_HostAddress = http://localhost:5176
+
+GET {{Api_HostAddress}}/weatherforecast/
+Accept: application/json
+
+###

Samples/OrganizationalChartPostgresql/OrgChartSample/src/Api/Controllers/LayoutController.cs

@@ -0,0 +1,31 @@
+using Api.Data;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using Shared.Models;
+
+namespace Api.Controllers;
+
+[ApiController]
+[Route("api/[controller]")]
+public class LayoutController : ControllerBase
+{
+    private readonly AppDbContext _context;
+
+    public LayoutController(AppDbContext context)
+    {
+        _context = context;
+    }
+
+    [HttpGet]
+    public async Task<ActionResult<List<LayoutNode>>> Get()
+    {
+        try
+        {
+            return await _context.OrgChartLayouts.OrderBy(n => n.Id).ToListAsync();
+        }
+        catch (Exception ex)
+        {
+            return StatusCode(500, $"Internal server error: {ex.Message}");
+        }
+    }
+}

Samples/OrganizationalChartPostgresql/OrgChartSample/src/Api/Data/AppDbContext.cs

@@ -0,0 +1,53 @@
+using Microsoft.EntityFrameworkCore;
+using Shared.Models;  // Or your namespace
+using System.Text.Json;
+
+namespace Api.Data;
+
+public class AppDbContext : DbContext
+{
+    public DbSet<LayoutNode> OrgChartLayouts { get; set; } = null!;
+
+    public AppDbContext(DbContextOptions<AppDbContext> options) : base(options) { }
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<LayoutNode>()
+            .ToTable("orgchart_layout")
+            .HasKey(n => n.Id);
+
+        modelBuilder.Entity<LayoutNode>()
+            .Property(n => n.ParentId)
+            .HasColumnName("parent_id");
+
+        modelBuilder.Entity<LayoutNode>()
+            .Property(n => n.Role)
+            .HasColumnName("role")
+            .IsRequired();
+
+        modelBuilder.Entity<LayoutNode>()
+            .HasIndex(n => n.ParentId);
+
+        // Seed data
+        modelBuilder.Entity<LayoutNode>().HasData(
+            new LayoutNode { Id = "parent", ParentId = null, Role = "Board" },
+            new LayoutNode { Id = "1",      ParentId = "parent", Role = "General Manager" },
+            new LayoutNode { Id = "2",      ParentId = "1",      Role = "Human Resource Manager" },
+            new LayoutNode { Id = "3",      ParentId = "2",      Role = "Trainers" },
+            new LayoutNode { Id = "4",      ParentId = "2",      Role = "Recruiting Team" },
+            new LayoutNode { Id = "5",      ParentId = "2",      Role = "Finance Asst. Manager" },
+            new LayoutNode { Id = "6",      ParentId = "1",      Role = "Design Manager" },
+            new LayoutNode { Id = "7",      ParentId = "6",      Role = "Design Supervisor" },
+            new LayoutNode { Id = "8",      ParentId = "6",      Role = "Development Supervisor" },
+            new LayoutNode { Id = "9",      ParentId = "6",      Role = "Drafting Supervisor" },
+            new LayoutNode { Id = "10",     ParentId = "1",      Role = "Operations Manager" },
+            new LayoutNode { Id = "11",     ParentId = "10",     Role = "Statistics Department" },
+            new LayoutNode { Id = "12",     ParentId = "10",     Role = "Logistics Department" },
+            new LayoutNode { Id = "16",     ParentId = "1",      Role = "Marketing Manager" },
+            new LayoutNode { Id = "17",     ParentId = "16",     Role = "Overseas Sales Manager" },
+            new LayoutNode { Id = "18",     ParentId = "16",     Role = "Petroleum Manager" },
+            new LayoutNode { Id = "20",     ParentId = "16",     Role = "Service Department Manager" },
+            new LayoutNode { Id = "21",     ParentId = "16",     Role = "Quality Control Department" }
+        );
+    }
+}

Samples/OrganizationalChartPostgresql/OrgChartSample/src/Api/Migrations/20260227075755_InitialCreate.cs

@@ -0,0 +1,66 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+#pragma warning disable CA1814 // Prefer jagged arrays over multidimensional
+
+namespace Api.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "orgchart_layout",
+                columns: table => new
+                {
+                    Id = table.Column<string>(type: "text", nullable: false),
+                    parent_id = table.Column<string>(type: "text", nullable: true),
+                    role = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_orgchart_layout", x => x.Id);
+                });
+
+            migrationBuilder.InsertData(
+                table: "orgchart_layout",
+                columns: new[] { "Id", "parent_id", "role" },
+                values: new object[,]
+                {
+                    { "1", "parent", "General Manager" },
+                    { "10", "1", "Operations Manager" },
+                    { "11", "10", "Statistics Department" },
+                    { "12", "10", "Logistics Department" },
+                    { "16", "1", "Marketing Manager" },
+                    { "17", "16", "Overseas Sales Manager" },
+                    { "18", "16", "Petroleum Manager" },
+                    { "2", "1", "Human Resource Manager" },
+                    { "20", "16", "Service Department Manager" },
+                    { "21", "16", "Quality Control Department" },
+                    { "3", "2", "Trainers" },
+                    { "4", "2", "Recruiting Team" },
+                    { "5", "2", "Finance Asst. Manager" },
+                    { "6", "1", "Design Manager" },
+                    { "7", "6", "Design Supervisor" },
+                    { "8", "6", "Development Supervisor" },
+                    { "9", "6", "Drafting Supervisor" },
+                    { "parent", null, "Board" }
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_orgchart_layout_parent_id",
+                table: "orgchart_layout",
+                column: "parent_id");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "orgchart_layout");
+        }
+    }
+}