150 lines
3.5 KiB
C#
150 lines
3.5 KiB
C#
using System;
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using System.Configuration;
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using System.Collections.Generic;
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using Yavsc.Model.Blogs;
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using System.Linq;
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namespace Yavsc.Model.Blogs
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{
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/// <summary>
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/// Blog entry collection.
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/// </summary>
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public class BlogEntryCollection : List<BlogEntry>
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{
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/// <summary>
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/// Initializes a new instance of the <see cref="Yavsc.Model.Blogs.BlogEntryCollection"/> class.
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/// </summary>
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public BlogEntryCollection ()
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{
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="Yavsc.Model.Blogs.BlogEntryCollection"/> class.
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/// </summary>
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/// <param name="items">Items.</param>
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public BlogEntryCollection(IEnumerable<BlogEntry> items)
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{
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if (items!=null)
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this.AddRange (items);
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}
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/// <summary>
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/// Returns a <see cref="System.String"/> that represents the current <see cref="Yavsc.Model.Blogs.BlogEntryCollection"/>.
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/// </summary>
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/// <returns>A <see cref="System.String"/> that represents the current <see cref="Yavsc.Model.Blogs.BlogEntryCollection"/>.</returns>
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public override string ToString ()
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{
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string titles = Titles == null ?
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"none" : string.Join (", ", Titles);
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return string.Format ("[BlogEntryCollection: Titles={0}]", titles);
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}
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/// <summary>
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/// Get the specified bid.
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/// </summary>
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/// <param name="bid">Bid.</param>
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public BlogEntry Get (long bid)
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{
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return this.First (x => x.Id == bid);
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}
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/// <summary>
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/// Filters this collection on
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/// the given title.
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/// </summary>
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/// <returns>The by title.</returns>
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/// <param name="title">Title.</param>
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public BlogEntry [] FilterOnTitle (string title)
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{
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return this.Where (x => x.Title == title).ToArray ();
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}
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/// <summary>
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/// Post info.
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/// </summary>
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public struct PostInfoByTitle {
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/// <summary>
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/// The name of the user.
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/// </summary>
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public string Author;
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/// <summary>
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/// The identifier.
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/// </summary>
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public long Id;
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/// <summary>
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/// The posted.
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/// </summary>
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public DateTime Posted;
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/// <summary>
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/// The modified.
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/// </summary>
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public DateTime Modified;
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}
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/// <summary>
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/// Post info by user.
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/// </summary>
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public struct PostInfoByUser {
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/// <summary>
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/// The name of the user.
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/// </summary>
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public string Title;
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/// <summary>
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/// The identifier.
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/// </summary>
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public long Id;
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/// <summary>
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/// The posted.
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/// </summary>
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public DateTime Posted;
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/// <summary>
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/// The modified.
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/// </summary>
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public DateTime Modified;
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}
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/// <summary>
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/// Groups by title.
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/// </summary>
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public IEnumerable<IGrouping<string,PostInfoByTitle>> GroupByTitle()
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{
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return from be in this
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orderby be.Posted descending
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group
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new PostInfoByTitle { Author=be.Author, Id=be.Id,
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Posted=be.Posted, Modified=be.Modified }
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by be.Title
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into titlegroup
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select titlegroup;
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}
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/// <summary>
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/// Groups by user.
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/// </summary>
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/// <returns>The by user.</returns>
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public IEnumerable<IGrouping<string,PostInfoByUser>> GroupByUser()
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{
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return from be in this
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orderby be.Posted descending
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group
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new PostInfoByUser { Title=be.Title, Id=be.Id,
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Posted=be.Posted, Modified=be.Modified }
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by be.Author
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into usergroup
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select usergroup;
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}
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/// <summary>
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/// Gets the titles.
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/// </summary>
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/// <value>The titles.</value>
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public string[] Titles { get {
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string[] result = this.Select (x => x.Title).Distinct ().ToArray ();
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if (result == null)
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return new string[0];
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return result;
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} }
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}
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}
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