refactor: delegate post lookup to BlogService
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@ -1,24 +1,35 @@
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using Markdig;
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using Markdig;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Mvc.RazorPages;
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using Microsoft.AspNetCore.Mvc.RazorPages;
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using Microsoft.EntityFrameworkCore;
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using OliverBooth.Data;
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using OliverBooth.Data.Blog;
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using OliverBooth.Data.Blog;
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using OliverBooth.Services;
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namespace OliverBooth.Pages.Blog;
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namespace OliverBooth.Pages.Blog;
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/// <summary>
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/// Represents the page model for the <c>Article</c> page.
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/// </summary>
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public class Article : PageModel
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public class Article : PageModel
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{
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{
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private readonly IDbContextFactory<BlogContext> _dbContextFactory;
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private readonly BlogService _blogService;
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private readonly MarkdownPipeline _markdownPipeline;
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private readonly MarkdownPipeline _markdownPipeline;
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public Article(IDbContextFactory<BlogContext> dbContextFactory, MarkdownPipeline markdownPipeline)
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/// <summary>
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/// Initializes a new instance of the <see cref="Article" /> class.
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/// </summary>
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/// <param name="blogService">The <see cref="BlogService" />.</param>
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/// <param name="markdownPipeline">The <see cref="MarkdownPipeline" />.</param>
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public Article(BlogService blogService, MarkdownPipeline markdownPipeline)
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{
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{
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_dbContextFactory = dbContextFactory;
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_blogService = blogService;
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_markdownPipeline = markdownPipeline;
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_markdownPipeline = markdownPipeline;
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}
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}
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public Author Author { get; private set; }
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/// <summary>
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/// Gets the author of the post.
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/// </summary>
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/// <value>The author of the post.</value>
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public Author Author { get; private set; } = null!;
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/// <summary>
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/// <summary>
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/// Gets a value indicating whether the post is a legacy WordPress post.
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/// Gets a value indicating whether the post is a legacy WordPress post.
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@ -26,10 +37,19 @@ public class Article : PageModel
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/// <value>
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/// <value>
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/// <see langword="true" /> if the post is a legacy WordPress post; otherwise, <see langword="false" />.
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/// <see langword="true" /> if the post is a legacy WordPress post; otherwise, <see langword="false" />.
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/// </value>
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/// </value>
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public bool IsWordPressLegacyPost => Post?.WordPressId.HasValue ?? false;
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public bool IsWordPressLegacyPost => Post.WordPressId.HasValue;
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public BlogPost Post { get; private set; } = new();
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/// <summary>
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/// Gets the requested blog post.
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/// </summary>
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/// <value>The requested blog post.</value>
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public BlogPost Post { get; private set; } = null!;
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/// <summary>
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/// Sanitizes the content of the blog post.
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/// </summary>
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/// <param name="content">The content of the blog post.</param>
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/// <returns>The sanitized content of the blog post.</returns>
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public string SanitizeContent(string content)
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public string SanitizeContent(string content)
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{
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{
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content = content.Replace("<!--more-->", string.Empty);
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content = content.Replace("<!--more-->", string.Empty);
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@ -44,20 +64,14 @@ public class Article : PageModel
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public IActionResult OnGet(int year, int month, int day, string slug)
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public IActionResult OnGet(int year, int month, int day, string slug)
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{
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{
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using BlogContext context = _dbContextFactory.CreateDbContext();
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if (!_blogService.TryGetBlogPost(year, month, day, slug, out BlogPost? post))
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Post = context.BlogPosts.FirstOrDefault(p => p.Published.Year == year &&
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p.Published.Month == month &&
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p.Published.Day == day &&
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p.Slug == slug)!;
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// ReSharper disable once ConditionIsAlwaysTrueOrFalseAccordingToNullableAPIContract
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if (Post is null)
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{
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{
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Response.StatusCode = 404;
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Response.StatusCode = 404;
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return NotFound();
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return NotFound();
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}
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}
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Author = context.Authors.FirstOrDefault(a => a.Id == Post.AuthorId)!;
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Post = post;
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Author = _blogService.TryGetAuthor(post, out Author? author) ? author : null!;
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return Page();
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return Page();
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}
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}
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}
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}
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@ -1,4 +1,5 @@
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using Microsoft.EntityFrameworkCore;
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using System.Diagnostics.CodeAnalysis;
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using Microsoft.EntityFrameworkCore;
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using OliverBooth.Data;
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using OliverBooth.Data;
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using OliverBooth.Data.Blog;
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using OliverBooth.Data.Blog;
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@ -29,4 +30,48 @@ public sealed class BlogService
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return context.BlogPosts.OrderByDescending(p => p.Published).ToArray();
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return context.BlogPosts.OrderByDescending(p => p.Published).ToArray();
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}
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}
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}
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}
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/// <summary>
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/// Attempts to find the author of a blog post.
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/// </summary>
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/// <param name="post">The blog post.</param>
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/// <param name="author">
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/// When this method returns, contains the <see cref="Author" /> associated with the specified blog post, if the
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/// author is found; otherwise, <see langword="null" />.
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/// <returns><see langword="true" /> if the author is found; otherwise, <see langword="false" />.</returns>
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/// <exception cref="ArgumentNullException"><paramref name="post" /> is <see langword="null" />.</exception>
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public bool TryGetAuthor(BlogPost post, [NotNullWhen(true)] out Author? author)
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{
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if (post is null) throw new ArgumentNullException(nameof(post));
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using BlogContext context = _dbContextFactory.CreateDbContext();
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author = context.Authors.FirstOrDefault(a => a.Id == post.AuthorId);
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return author is not null;
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}
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/// <summary>
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/// Attempts to find a blog post by its publication date and slug.
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/// </summary>
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/// <param name="year">The year the post was published.</param>
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/// <param name="month">The month the post was published.</param>
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/// <param name="day">The day the post was published.</param>
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/// <param name="slug">The slug of the post.</param>
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/// <param name="post">
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/// When this method returns, contains the <see cref="BlogPost" /> associated with the specified publication
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/// date and slug, if the post is found; otherwise, <see langword="null" />.
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/// </param>
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/// <returns><see langword="true" /> if the post is found; otherwise, <see langword="false" />.</returns>
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/// <exception cref="ArgumentNullException"><paramref name="slug" /> is <see langword="null" />.</exception>
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public bool TryGetBlogPost(int year, int month, int day, string slug, [NotNullWhen(true)] out BlogPost? post)
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{
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if (slug is null) throw new ArgumentNullException(nameof(slug));
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using BlogContext context = _dbContextFactory.CreateDbContext();
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post = context.BlogPosts.FirstOrDefault(p =>
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p.Published.Year == year && p.Published.Month == month && p.Published.Day == day &&
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p.Slug == slug);
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return post is not null;
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}
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}
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}
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