1
Using#region Using
2
3using System;
4using System.Xml;
5using System.IO;
6using System.Globalization;
7using System.Collections.Generic;
8using System.Collections.Specialized;
9using LiveBlog.Core;
10
11
#endregion
12
13namespace LiveBlog.Core.Providers
14...{
15
/**//// <summary>
16 /// A storage provider for BlogEngine that uses XML files.
17 /// <remarks>
18 /// To build another provider, you can just copy and modify
19 /// this one. Then add it to the web.config's BlogEngine section.
20 /// </remarks>
21
/// </summary>
22 public partial class XmlBlogProvider : BlogProvider
23 ...{
24 //private static string _Folder = System.Web.HttpContext.Current.Server.MapPath(BlogSettings.Instance.StorageLocation);
25
26 internal static string _Folder
27 ...{
28 get
29 ...{
30 string p = BlogSettings.Instance.StorageLocation.Replace("~/", "");
31 return System.IO.Path.Combine(System.Web.HttpRuntime.AppDomainAppPath, p);
32 }
33 }
34
35 /**//// <summary>
36 /// Retrieves a post based on the specified Id.
37 /// </summary>
38 public override Post SelectPost(Guid id)
39 ...{
40 string fileName = _Folder + "posts" + Path.DirectorySeparatorChar + id.ToString() + ".xml";
41 Post post = new Post();
42 XmlDocument doc = new XmlDocument();
43 doc.Load(fileName);
44
45 post.Title = doc.SelectSingleNode("post/title").InnerText;
46 post.Description = doc.SelectSingleNode("post/description").InnerText;
47 post.Content = doc.SelectSingleNode("post/content").InnerText;
48 post.DateCreated = DateTime.Parse(doc.SelectSingleNode("post/pubDate").InnerText, CultureInfo.InvariantCulture);
49
50 if (doc.SelectSingleNode("post/lastModified") != null)
51 post.DateModified = DateTime.Parse(doc.SelectSingleNode("post/lastModified").InnerText, CultureInfo.InvariantCulture);
52
53 if (doc.SelectSingleNode("post/author") != null)
54 post.Author = doc.SelectSingleNode("post/author").InnerText;
55
56 if (doc.SelectSingleNode("post/ispublished") != null)
57 post.IsPublished = bool.Parse(doc.SelectSingleNode("post/ispublished").InnerText);
58
59 if (doc.SelectSingleNode("post/iscommentsenabled") != null)
60 post.IsCommentsEnabled = bool.Parse(doc.SelectSingleNode("post/iscommentsenabled").InnerText);
61
62 if (doc.SelectSingleNode("post/raters") != null)
63 post.Raters = int.Parse(doc.SelectSingleNode("post/raters").InnerText, CultureInfo.InvariantCulture);
64
65 if (doc.SelectSingleNode("post/rating") != null)
66 post.Rating = float.Parse(doc.SelectSingleNode("post/rating").InnerText, System.Globalization.CultureInfo.GetCultureInfo("en-gb"));
67
68 if (doc.SelectSingleNode("post/slug") != null)
69 post.Slug = doc.SelectSingleNode("post/slug").InnerText;
70
71 // Tags
72 foreach (XmlNode node in doc.SelectNodes("post/tags/tag"))
73 ...{
74 if (!string.IsNullOrEmpty(node.InnerText))
75 post.Tags.Add(node.InnerText);
76 }
77
78 // comments
79 foreach (XmlNode node in doc.SelectNodes("post/comments/comment"))
80 ...{
81 Comment comment = new Comment();
82 comment.Id = new Guid(node.Attributes["id"].InnerText);
83 comment.Author = node.SelectSingleNode("author").InnerText;
84 comment.Email = node.SelectSingleNode("email").InnerText;
85 comment.Parent = post;
86
87 if (node.SelectSingleNode("country") != null)
88 comment.Country = node.SelectSingleNode("country").InnerText;
89
90 if (node.SelectSingleNode("ip") != null)
91 comment.IP = node.SelectSingleNode("ip").InnerText;
92
93 if (node.SelectSingleNode("website") != null)
94 ...{
95 Uri website;
96 if (Uri.TryCreate(node.SelectSingleNode("website").InnerText, UriKind.Absolute, out website))
97 comment.Website = website;
98 }
99
100 if (node.Attributes["approved"] != null)
101 comment.IsApproved = bool.Parse(node.Attributes["approved"].InnerText);
102 else
103 comment.IsApproved = true;
104
105 comment.Content = node.SelectSingleNode("content").InnerText;
106 comment.DateCreated = DateTime.Parse(node.SelectSingleNode("date").InnerText, CultureInfo.InvariantCulture);
107 post.Comments.Add(comment);
108 }
109
110 post.Comments.Sort();
111
112 // categories
113 foreach (XmlNode node in doc.SelectNodes("post/categories/category"))
114 ...{
115 Guid key = new Guid(node.InnerText);
116 Category cat = Category.GetCategory(key);
117 if (cat != null)//CategoryDictionary.Instance.ContainsKey(key))
118 post.Categories.Add(cat);
119 }
120
121 // Notification e-mails
122 foreach (XmlNode node in doc.SelectNodes("post/notifications/email"))
123 ...{
124 post.NotificationEmails.Add(node.InnerText);
125 }
126
127 return post;
128 }
129
130 /**//// <summary>
131 /// Inserts a new Post to the data store.
132 /// </summary>
133 /// <param name="post"></param>
134 public override void InsertPost(Post post)
135 ...{
136 if (!Directory.Exists(_Folder + "posts"))
137 Directory.CreateDirectory(_Folder + "posts");
138
139 string fileName = _Folder + "posts" + Path.DirectorySeparatorChar + post.Id.ToString() + ".xml";
140 XmlWriterSettings settings = new XmlWriterSettings();
141 settings.Indent = true;
142
143 using (XmlWriter writer = XmlWriter.Create(fileName, settings))
144 ...{
145 writer.WriteStartDocument(true);
146 writer.WriteStartElement("post");
147
148 writer.WriteElementString("author", post.Author);
149 writer.WriteElementString("title", post.Title);
150 writer.WriteElementString("description", post.Description);
151 writer.WriteElementString("content", post.Content);
152 writer.WriteElementString("ispublished", post.IsPublished.ToString());
153 writer.WriteElementString("iscommentsenabled", post.IsCommentsEnabled.ToString());
154 writer.WriteElementString("pubDate", post.DateCreated.AddHours(-BlogSettings.Instance.Timezone).ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture));
155 writer.WriteElementString("lastModified", post.DateModified.AddHours(-BlogSettings.Instance.Timezone).ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture));
156 writer.WriteElementString("raters", post.Raters.ToString(CultureInfo.InvariantCulture));
157 writer.WriteElementString("rating", post.Rating.ToString(CultureInfo.InvariantCulture));
158 writer.WriteElementString("slug", post.Slug);
159
160 // Tags
161 writer.WriteStartElement("tags");
162 foreach (string tag in post.Tags)
163 ...{
164 writer.WriteElementString("tag", tag);
165 }
166 writer.WriteEndElement();
167
168 // comments
169 writer.WriteStartElement("comments");
170 foreach (Comment comment in post.Comments)
171 ...{
172 writer.WriteStartElement("comment");
173 writer.WriteAttributeString("id", comment.Id.ToString());
174 writer.WriteAttributeString("approved", comment.IsApproved.ToString());
175 writer.WriteElementString("date", comment.DateCreated.AddHours(-BlogSettings.Instance.Timezone).ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture));
176 writer.WriteElementString("author", comment.Author);
177 writer.WriteElementString("email", comment.Email);
178 writer.WriteElementString("country", comment.Country);
179 writer.WriteElementString("ip", comment.IP);
180 if (comment.Website != null)
181 writer.WriteElementString("website", comment.Website.ToString());
182 writer.WriteElementString("content", comment.Content);
183 writer.WriteEndElement();
184 }
185 writer.WriteEndElement();
186
187 // categories
188 writer.WriteStartElement("categories");
189 foreach (Category cat in post.Categories)
190 ...{
191 //if (cat.Id = .Instance.ContainsKey(key))
192 // writer.WriteElementString("category", key.ToString());
193 writer.WriteElementString("category", cat.Id.ToString());
194
195 }
196 writer.WriteEndElement();
197
198 // Notification e-mails
199 writer.WriteStartElement("notifications");
200 foreach (string email in post.NotificationEmails)
201 ...{
202 writer.WriteElementString("email", email);
203 }
204 writer.WriteEndElement();
205
206 writer.WriteEndElement();
207 }
208 }
209
210 /**//// <summary>
211 /// Updates a Post.
212 /// </summary>
213 public override void UpdatePost(Post post)
214 ...{
215 InsertPost(post);
216 }
217
218 /**//// <summary>
219 /// Deletes a post from the data store.
220 /// </summary>
221 public override void DeletePost(Post post)
222 ...{
223 string fileName = _Folder + "posts" + Path.DirectorySeparatorChar + post.Id.ToString() + ".xml";
224 if (File.Exists(fileName))
225 File.Delete(fileName);
226 }
227
228 /**//// <summary>
229 /// Retrieves all posts from the data store
230 /// </summary>
231 /// <returns>List of Posts</returns>
232 public override List<Post> FillPosts()
233 ...{
234 string folder = Category._Folder + "posts" + Path.DirectorySeparatorChar;
235 List<Post> posts = new List<Post>();
236
237 foreach (string file in Directory.GetFiles(folder, "*.xml", SearchOption.TopDirectoryOnly))
238 ...{
239 FileInfo info = new FileInfo(file);
240 string id = info.Name.Replace(".xml", string.Empty);
241 //Post post = SelectPost(new Guid(id));
242 Post post = Post.Load(new Guid(id));
243 posts.Add(post);
244 }
245
246 posts.Sort();
247 return posts;
248 }
249
250 }
251}
LiveBlog/LiveBlog.Core/Providers/XmlProvider/Posts.cs[8K，2009-6-12 11:47:02]，打开代码结构图
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