feat: Added templates for blog post editor

Author: linkdotnet

src/LinkDotNet.Blog.Domain/BlogPostTemplate.cs

@@ -0,0 +1,33 @@
+using System;
+
+namespace LinkDotNet.Blog.Domain;
+
+public sealed class BlogPostTemplate : Entity
+{
+    public string Name { get; private set; } = default!;
+
+    public string Title { get; private set; } = default!;
+
+    public string ShortDescription { get; private set; } = default!;
+
+    public string Content { get; private set; } = default!;
+
+    public static BlogPostTemplate Create(string name, string title, string shortDescription, string content)
+    {
+        return new BlogPostTemplate
+        {
+            Name = name,
+            Title = title,
+            ShortDescription = shortDescription,
+            Content = content
+        };
+    }
+
+    public void Update(string name, string title, string shortDescription, string content)
+    {
+        Name = name;
+        Title = title;
+        ShortDescription = shortDescription;
+        Content = content;
+    }
+}

src/LinkDotNet.Blog.Infrastructure/Migrations/20260109211327_AddBlogPostTemplate.Designer.cs

@@ -0,0 +1,62 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace LinkDotNet.Blog.Web.Migrations;
+
+/// <inheritdoc />
+public partial class AddBlogPostTemplate : Migration
+{
+    /// <inheritdoc />
+    protected override void Up(MigrationBuilder migrationBuilder)
+    {
+        ArgumentNullException.ThrowIfNull(migrationBuilder);
+
+        migrationBuilder.AlterColumn<string>(
+            name: "AuthorName",
+            table: "BlogPosts",
+            type: "TEXT",
+            maxLength: 256,
+            nullable: true,
+            oldClrType: typeof(string),
+            oldType: "nvarchar(256)",
+            oldMaxLength: 256,
+            oldNullable: true);
+
+        migrationBuilder.CreateTable(
+            name: "BlogPostTemplates",
+            columns: table => new
+            {
+                Id = table.Column<string>(type: "TEXT", unicode: false, nullable: false),
+                Name = table.Column<string>(type: "TEXT", maxLength: 256, nullable: false),
+                Title = table.Column<string>(type: "TEXT", maxLength: 256, nullable: false),
+                ShortDescription = table.Column<string>(type: "TEXT", nullable: false),
+                Content = table.Column<string>(type: "TEXT", nullable: false)
+            },
+            constraints: table =>
+            {
+                table.PrimaryKey("PK_BlogPostTemplates", x => x.Id);
+            });
+    }
+
+    /// <inheritdoc />
+    protected override void Down(MigrationBuilder migrationBuilder)
+    {
+        ArgumentNullException.ThrowIfNull(migrationBuilder);
+
+        migrationBuilder.DropTable(
+            name: "BlogPostTemplates");
+
+        migrationBuilder.AlterColumn<string>(
+            name: "AuthorName",
+            table: "BlogPosts",
+            type: "TEXT",
+            maxLength: 256,
+            nullable: true,
+            oldClrType: typeof(string),
+            oldType: "nvarchar(256)",
+            oldMaxLength: 256,
+            oldNullable: true);
+    }
+}