T4 代码生成 Demo (抽奖程序)

参考自这位大狮的： https://github.com/Pencroff/Dapper-DAL/blob/master/Dapper-DAL/Models/ModelGenerator.tt
项目Demo下载 http://download.csdn.net/detail/qq_21533697/9904071
支持Oracle,MSSQL,SQLite
Demo项目是个抽奖小程序,抽奖只用到了LuckDraw表
Demo用的SQLite包含库方便直接运行
里面用到Dapper就只写了Model层的模板,
文件目录
T4 代码生成 Demo (抽奖程序)
T4库
表结构读取抽象类 SchemaReader.ttinclude
  1 <#+ 
  2 /*
  3 The contents of this file are subject to the New BSD
  4  License (the "License"); you may not use this file
  5  except in compliance with the License. You may obtain a copy of
  6  the License at http://www.opensource.org/licenses/bsd-license.php
  7  
  8  Software distributed under the License is distributed on an 
  9  "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 10  implied. See the License for the specific language governing
 11  rights and limitations under the License.
 12 */
 13 
 14 string ConnectionString = ""; 
 15 string TableFilter = ""; 
 16 string TopNamespace = "";
 17 string Namespace = "";
 18 string ClassPrefix = "";
 19 string ClassSuffix = "";
 20 string SchemaName = null;
 21 bool IncludeViews;
 22 string[] ExcludeTablePrefixes = new string[]{};
 23 string _connectionString="";
 24 string _providerName="";
 25 
 26 static Regex rxCleanUp = new Regex(@"[^\w\d_]", RegexOptions.Compiled);
 27 
 28 static Func<string, string> CleanUp = (str) =>
 29 {
 30     str = rxCleanUp.Replace(str, "_");
 31     if (char.IsDigit(str[0])) str = "_" + str;
 32     
 33     return str;
 34 };
 35 
 36 string CheckNullable(Column col)
 37 {
 38     string result="";
 39     if(col.IsNullable && 
 40         col.PropertyType !="byte[]" && 
 41         col.PropertyType !="string" &&
 42         col.PropertyType !="Microsoft.SqlServer.Types.SqlGeography" &&
 43         col.PropertyType !="Microsoft.SqlServer.Types.SqlGeometry"
 44         )
 45         result="?";
 46     return result;
 47 }
 48   
 49 static bool IsExcluded(string tablename, string[] ExcludeTablePrefixes)
 50 {
 51     for (int i = 0; i < ExcludeTablePrefixes.Length; i++)
 52     {
 53         string s = ExcludeTablePrefixes[i];
 54         if(tablename.StartsWith(s)) return true;
 55     }
 56     return false;
 57 }
 58 
 59 
 60 abstract class SchemaReader
 61 {
 62     public abstract Tables ReadSchema(string connstr, string tableFilter);
 63     public GeneratedTextTransformation outer;
 64     public void WriteLine(string o)
 65     {
 66         outer.WriteLine(o);
 67     }
 68     
 69     public string GetPropertyType(string sqlType)
 70     { 
 71         string sysType = "string";
 72         switch (sqlType)
 73         {
 74             case "bigint":
 75                 sysType = "long";
 76                 break;
 77             case "smallint":
 78                 sysType = "short";
 79                 break;
 80             case "int":
 81             case "number":
 82             case "integer":
 83                 sysType = "int";
 84                 break;
 85             case "uniqueidentifier":
 86                 sysType = "Guid";
 87                 break;
 88             case "smalldatetime":
 89             case "datetime":
 90             case "date":
 91             case "time":
 92                 sysType = "DateTime";
 93                 break;
 94             case "float":
 95                 sysType = "double";
 96                 break;
 97             case "real":
 98                 sysType = "float";
 99                 break;
100             case "numeric":
101             case "smallmoney":
102             case "decimal":
103             case "money":
104                 sysType = "decimal";
105                 break;
106             case "tinyint":
107                 sysType = "byte";
108                 break;
109             case "bit":
110                 sysType = "bool";
111                 break;
112             case "image":
113             case "binary":
114             case "varbinary":
115             case "timestamp":
116                 sysType = "byte[]";
117                 break;
118             case "geography":
119                 sysType = "Microsoft.SqlServer.Types.SqlGeography";
120                 break;
121             case "geometry":
122                 sysType = "Microsoft.SqlServer.Types.SqlGeometry";
123                 break;
124         }
125         return sysType;
126     }
127 } 
128  
129 public class Table
130 {
131     public List<Column> Columns;    
132     public string Name;
133     public string Schema;
134     public bool IsView;
135     public string CleanName;
136     public string ClassName;
137     public string SequenceName;
138     public bool Ignore;
139 
140     public Column PK
141     {
142         get
143         {
144             return this.Columns.SingleOrDefault(x=>x.IsPK);
145         }
146     }
147 
148     public Column GetColumn(string columnName)
149     {
150         return Columns.Single(x=>string.Compare(x.Name, columnName, true)==0);
151     }
152 
153     public Column this[string columnName]
154     {
155         get
156         {
157             return GetColumn(columnName);
158         }
159     }
160 
161 }
162 
163 public class Column
164 {
165     public string Name;
166     public string PropertyName;
167     public string PropertyType;
168     public string DbType;
169     public bool IsPK;
170     public bool IsNullable;
171     public bool IsAutoIncrement;
172     public bool Ignore;
173 }
174 
175 public class Tables : List<Table>
176 {
177     public Tables()
178     {
179     }
180     
181     public Table GetTable(string tableName)
182     {
183         return this.Single(x=>string.Compare(x.Name, tableName, true)==0);
184     }
185 
186     public Table this[string tableName]
187     {
188         get
189         {
190             return GetTable(tableName);
191         }
192     }
193 
194 }
195  
196 #>