refactoring

NpgsqlBlogProvider/ChangeLog

@@ -1,3 +1,9 @@
+2015-10-17  Paul Schneider  <paul@pschneider.fr>
+
+	* NpgsqlTagInfo.cs:
+	* NpgsqlBlogProvider.cs:
+	* NpgsqlBlogProvider.csproj: 
+
 2015-10-17  Paul Schneider  <paul@pschneider.fr>
 
 	* NpgsqlBlogProvider.cs: 

NpgsqlBlogProvider/NpgsqlBlogProvider.cs

@@ -16,10 +16,20 @@ namespace Npgsql.Web.Blog
 	/// </summary>
 	public class NpgsqlBlogProvider : BlogProvider
 	{
+
 		string applicationName;
 		string connectionString;
 
 		#region implemented abstract members of BlogProvider
+		/// <summary>
+		/// Gets the tag info.
+		/// </summary>
+		/// <returns>The tag info.</returns>
+		/// <param name="tagname">Tagname.</param>
+		public override TagInfo GetTagInfo (string tagname)
+		{
+			return new NpgsqlTagInfo (connectionString, tagname);
+		}
 
 		/// <summary>
 		/// Tag the specified post by identifier 

NpgsqlBlogProvider/NpgsqlBlogProvider.csproj

@@ -34,6 +34,7 @@
   <ItemGroup>
     <Compile Include="NpgsqlBlogProvider.cs" />
     <Compile Include="AssemblyInfo.cs" />
+    <Compile Include="NpgsqlTagInfo.cs" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="Sql\" />

NpgsqlBlogProvider/NpgsqlTagInfo.cs

@@ -0,0 +1,96 @@
+//
+//  NpgsqlTagInfo.cs
+//
+//  Author:
+//       Paul Schneider <paul@pschneider.fr>
+//
+//  Copyright (c) 2015 GNU GPL
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU Lesser General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+using System;
+using Yavsc.Model.Blogs;
+using System.Collections.Generic;
+
+namespace Npgsql.Web.Blog
+{
+	/// <summary>
+	/// Npgsql tag info.
+	/// </summary>
+	public class NpgsqlTagInfo: TagInfo
+	{
+		/// <summary>
+		/// Initializes a new instance of the <see cref="Npgsql.Web.Blog.NpgsqlTagInfo"/> class.
+		/// </summary>
+		/// <param name="connectionString">Connection string.</param>
+		/// <param name="tagname">Tagname.</param>
+		public NpgsqlTagInfo (string connectionString, string tagname): base(tagname)
+		{
+			titles = new List<BasePostInfo>();
+			using (NpgsqlConnection cnx = new NpgsqlConnection (connectionString))
+			using (NpgsqlCommand cmd = cnx.CreateCommand ()) {
+				cmd.CommandText = "SELECT \n" +
+					"  blog.username, \n" +
+					"  blog.posted, \n" +
+					"  blog.modified, \n" +
+					"  blog.title, \n" +
+					"  blog.bcontent, \n" +
+					"  blog.visible, \n" +
+					"  blog._id, \n" +
+					"  blog.photo, \n" +
+					"  tag.name\nFROM \n" +
+					"  public.blog, \n" +
+					"  public.tagged, \n" +
+					"  public.tag\nWHERE \n" +
+					"  tagged.postid = blog._id AND \n" +
+					"  tag._id = tagged.tagid AND \n" +
+					" public.tag.name = :name";
+				cmd.Parameters.AddWithValue ("name", tagname);
+
+				using (NpgsqlDataReader rdr = cmd.ExecuteReader ()) {
+					while (rdr.Read ()) {
+						bool truncated;
+						var pi = new  BasePostInfo { 
+							Title = rdr.GetString(3),
+							Author = rdr.GetString (0), 
+							Id =  rdr.GetInt64 (6), 
+							Intro = MarkdownHelper.MarkdownIntro (
+								rdr.GetString (4),
+								out truncated),
+							Visible = rdr.GetBoolean(5),
+							Photo = (!rdr.IsDBNull (7))?null:rdr.GetString (7),
+							Modified = rdr.GetDateTime(2),
+							Posted = rdr.GetDateTime(1)
+						};
+						titles.Add (pi);
+					}
+				}
+			}
+		}
+
+		List<BasePostInfo> titles;
+
+		#region implemented abstract members of TagInfo
+		/// <summary>
+		/// Gets the titles.
+		/// </summary>
+		/// <value>The titles.</value>
+		public override System.Collections.Generic.IEnumerable<BasePostInfo> Titles {
+			get {
+				return titles;
+			}
+		}
+		#endregion
+	}
+}
+