Updated admin page to be more streamlined and added the beginning of the blogging features

OpenArchival.DataAccess/Models/Blog/BlogPost.cs

@@ -0,0 +1,39 @@
+using NpgsqlTypes;
+using System.ComponentModel.DataAnnotations;
+
+namespace OpenArchival.DataAccess;
+
+public class BlogPost
+{
+    [Key]
+    public int Id { get; set; }
+    
+    /// <summary>
+    /// The title of the blog post
+    /// </summary>
+    public string Title { get; set; } = "";
+    
+    /// <summary>
+    /// The HTML content of the post
+    /// </summary>
+    public string Content { get; set; } = "";
+
+    public DateTime CreationTime { get; set; }
+
+    public DateTime ModifiedTime { get; set; }
+
+    public List<BlogPostTag> Tags { get; set; } = [];
+
+    public List<ArtifactGrouping> ArtifactGroupings { get; set; } = [];
+
+    public NpgsqlTsVector ContentSearchVector { get; set; } = default!;
+
+    public NpgsqlTsVector TitleSearchVector { get; set; } = default!;
+
+    public string TagsSearchString { get; set; } = "";
+    public NpgsqlTsVector TagsSearchVector { get; set; } = default!;
+
+    public string AllSearchString { get; set; } = "";
+    public NpgsqlTsVector AllSearchVector { get; set; } = default!;
+
+}

OpenArchival.DataAccess/Models/Blog/BlogPostTag.cs

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+using System.ComponentModel.DataAnnotations;
+
+namespace OpenArchival.DataAccess;
+
+public class BlogPostTag
+{
+    [Key]
+    public int Id { get; set; }
+    
+    /// <summary>
+    /// The name of this tags
+    /// </summary>
+    public string Name { get; set; } = "";
+
+    /// <summary>
+    /// Blog posts assocaited with this tag
+    /// </summary>
+    public List<BlogPostTag> BlogPostTags { get; set; } = [];
+
+    public override string ToString()
+    {
+        return Name; 
+    }
+}