VNaviForeignKey - Traverses all referenced tables from the root ForeignKeyBaseTable.

Author: AbelCheng

T4SQLTemplateLibrary/DataAccess/DbExtensions.cs

@@ -54,7 +54,12 @@ public static T Field<T>(this DbDataReader reader, int ordinal)
 
 		public static T Parameter<T>(this DbCommand cmd, string parameterName)
 		{
-			return TryConvert<T>(cmd.Parameters[parameterName].Value);
+			return cmd.Parameters.Parameter<T>(parameterName);
+		}
+
+		public static T Parameter<T>(this DbParameterCollection parameters, string parameterName)
+		{
+			return parameters[parameterName].Parameter<T>();
 		}
 
 		public static T Parameter<T>(this DbParameter parameter)

T4SQLTemplateLibrary/DataAccess/DbParameterBuilder.cs

@@ -7,11 +7,7 @@ namespace DbParallel.DataAccess
 	public partial class DbParameterBuilder
 	{
 		private readonly DbCommand _DbCommand;
-
-		public DbParameterCollection Parameters
-		{
-			get { return _DbCommand.Parameters; }
-		}
+		public DbCommand Command { get { return _DbCommand; } }
 
 		public DbParameterBuilder(DbCommand dbCommand)
 		{

T4SQLTemplateLibrary/DataAccess/Properties/AssemblyInfo.cs

@@ -5,12 +5,12 @@
 // General Information about an assembly is controlled through the following 
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
-[assembly: AssemblyTitle("DbParallel.DataAccess")]
-[assembly: AssemblyDescription("dbParallel Database Access Extensions")]
+[assembly: AssemblyTitle("DataBooster")]
+[assembly: AssemblyDescription("DataBooster is a high-performance extension to ADO.NET Data Provider, includes a light encapsulation to minimize your DAL code and a booster to maximize throughput for writing mass data onto database.")]
 [assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("http://dbparallel.codeplex.com/")]
+[assembly: AssemblyCompany("Abel Cheng")]
 [assembly: AssemblyProduct("dbParallel Database Task Parallel Foundation")]
-[assembly: AssemblyCopyright("Abel Cheng. All rights reserved.")]
+[assembly: AssemblyCopyright("Copyright ©  2012 Abel Cheng")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
@@ -32,5 +32,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.0.2")]
-[assembly: AssemblyFileVersion("1.0.0.2")]
+[assembly: AssemblyVersion("1.0.0.4")]
+[assembly: AssemblyFileVersion("1.0.0.4")]

T4SQLTemplateLibrary/T4SQL.Base/MetaData/DbmsRelationTree.cs

@@ -78,6 +78,21 @@ internal TableLink LinkProperty
 			get { return _LinkProperty; }
 			set { _LinkProperty = value; }
 		}
+
+		internal IEnumerable<DbmsColumn> DisplayColumns
+		{
+			get
+			{
+				if (_ParentForeignKey == null)
+					return _Columns;
+				else
+				{
+					var pkCols = _ParentForeignKey.PrimaryUniqueKeyColumns.Select(c => c.ColumnName);
+
+					return _Columns.Where(c => !pkCols.Contains(c.ColumnName, StringComparer.OrdinalIgnoreCase));
+				}
+			}
+		}
 	}
 }
 

T4SQLTemplateLibrary/T4SQL.Base/MetaData/JoinedTable.cs

@@ -68,6 +68,11 @@ public string ColumnExpression
 						return string.Format("{0}.{1} AS {2}", TableAlias, ColumnName, Alias);
 				}
 			}
+
+			public override string ToString()
+			{
+				return ColumnExpression;
+			}
 		}
 
 		private DbmsRelationTree _RootTable;
@@ -89,7 +94,7 @@ private void TraverseRelationTree(DbmsRelationTree nodeTable, string parentAlias
 		{
 			nodeTable.LinkProperty = new TableLink(this, parentAlias, position);
 
-			foreach (DbmsColumn col in nodeTable.Columns)
+			foreach (DbmsColumn col in nodeTable.DisplayColumns)
 				_ColumnAliases.Add(new ColumnAlias(nodeTable, col));
 
 			for (byte pos = 0; pos < nodeTable.ForeignKeys.Count; pos++)
@@ -98,24 +103,32 @@ private void TraverseRelationTree(DbmsRelationTree nodeTable, string parentAlias
 
 		public string BuildJoinClause()
 		{
-			return BuildJoinClause(_RootTable);
+			int cntJoin;
+			return BuildJoinClause(_RootTable, out cntJoin);
 		}
 
-		private string BuildJoinClause(DbmsRelationTree startTable)
+		private string BuildJoinClause(DbmsRelationTree startTable, out int cntJoin)
 		{
 			StringBuilder joinClause = new StringBuilder();
 
 			joinClause.AppendFormat(startTable.TableName);
 			joinClause.Append(" ");
 			joinClause.AppendLine(startTable.LinkProperty.Alias);
+			cntJoin = 1;
 
 			foreach (DbmsForeignKey fk in startTable.ForeignKeys)	// INNER JOIN first
 				if (!fk.IsNullable)									// ForeignKeyColumns is not null
+				{
 					AppendJoinSource(joinClause, fk);
+					cntJoin++;
+				}
 
 			foreach (DbmsForeignKey fk in startTable.ForeignKeys)	// Then LEFT JOIN
 				if (fk.IsNullable)									// ForeignKeyColumns is nullable
+				{
 					AppendJoinSource(joinClause, fk);
+					cntJoin++;
+				}
 
 			return joinClause.ToString();
 		}
@@ -126,16 +139,25 @@ private void AppendJoinSource(StringBuilder joinClause, DbmsForeignKey foreignKe
 			string pkTableAlias = foreignKey.PrimaryUniqueKeyBaseTable.LinkProperty.Alias;
 			List<DbmsColumn> fkColumns = foreignKey.ForeignKeyColumns;
 			List<DbmsColumn> pkColumns = foreignKey.PrimaryUniqueKeyColumns;
-			int nCols = foreignKey.ForeignKeyColumns.Count;
+			int cntJoin, nCols = foreignKey.ForeignKeyColumns.Count;
+			string insideJoin = BuildJoinClause(foreignKey.PrimaryUniqueKeyBaseTable, out cntJoin);
 
 			if (foreignKey.IsNullable)
-				joinClause.AppendLine("LEFT JOIN (");
+				joinClause.Append("LEFT JOIN");
 			else
-				joinClause.AppendLine("INNER JOIN (");
+				joinClause.Append("INNER JOIN");
+
+			if (cntJoin > 1)
+				joinClause.AppendLine(" (");
+			else
+				joinClause.AppendLine();
+
+			joinClause.Append(insideJoin.PushIndent());
 
-			joinClause.Append(BuildJoinClause(foreignKey.PrimaryUniqueKeyBaseTable).PushIndent());
+			if (cntJoin > 1)
+				joinClause.Append(") ");
 
-			joinClause.Append(") ON (");
+			joinClause.Append("ON (");
 
 			for (int i = 0; i < nCols; i++)
 			{
@@ -145,7 +167,7 @@ private void AppendJoinSource(StringBuilder joinClause, DbmsForeignKey foreignKe
 				joinClause.AppendFormat("{0}.{1} = {2}.{3}", fkTableAlias, fkColumns[i].ColumnName, pkTableAlias, pkColumns[i].ColumnName);
 			}
 
-			joinClause.Append(")");
+			joinClause.AppendLine(")");
 		}
 
 		public bool SolveNameRepetition(string renameFormat)	// renameFormat: "{0}${1}" - {0}: Table; {1}: ColumnName

T4SQLTemplateLibrary/T4SQL.Base/NuGet/Readme.txt

@@ -8,7 +8,7 @@ In case the automatic installation fail due to insufficient permissions or other
 you may need to manually install it by following instructions:
 
 Copy the file T4SQLTemplate.CSharp.zip
-	from the project NuGet package directory (packages\T4SQL.Base.x.x.x.x\Visual Studio\Templates\ItemTemplates\)
+	from the project NuGet package directory (packages\T4SQL.Base.x.x.x.x\Visual Studio\Templates\ItemTemplates\Visual C#\)
 	to your Visual Studio Item Templates Directory
 		(Find Visual Studio [Tools] menu, [Options] dialog box, under [Projects and Solutions]\[General], in [user item templates location])
 

T4SQLTemplateLibrary/T4SQL.Base/Properties/AssemblyInfo.cs

@@ -6,7 +6,7 @@
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyTitle("T4SQL.Base")]
-[assembly: AssemblyDescription("T4SQL Template Library Base")]
+[assembly: AssemblyDescription("Base Library for Developing T4SQL Templates Plug-ins")]
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("Abel Cheng")]
 [assembly: AssemblyProduct("T4SQL Template Library")]

T4SQLTemplateLibrary/T4SQLTemplateLibrary.sln

@@ -162,6 +162,7 @@ Global
 		{A5DD7958-181E-4D43-BE49-BAE5005ADB6D} = {FF43D7CC-1C03-4685-936F-69853A5315F4}
 		{55837841-3D2A-411D-960F-323C12668088} = {FF43D7CC-1C03-4685-936F-69853A5315F4}
 		{304335BC-9CD9-4D9C-B87B-CE9FBBACAFFA} = {FF43D7CC-1C03-4685-936F-69853A5315F4}
+		{AD2C96A3-8A0E-4D50-A703-CDDC43D11284} = {FF43D7CC-1C03-4685-936F-69853A5315F4}
 		{15675A2B-48D5-484F-B908-82A8E744A6C0} = {AD2C96A3-8A0E-4D50-A703-CDDC43D11284}
 	EndGlobalSection
 EndGlobal

T4SQLTemplateLibrary/T4Templates/Assoc/VNaviForeignKey.Oracle.sql

@@ -0,0 +1,7 @@
+CREATE OR REPLACE VIEW <#= ObjectView #> AS
+SELECT
+-- This code was generated by <#= TemplateName #> @ <#= DateTime.Now.ToString() #>
+<#= ColumnListClause #>
+FROM
+<#= JoinClause #>
+WITH READ ONLY;

T4SQLTemplateLibrary/T4Templates/Assoc/VNaviForeignKey.SqlServer.sql

@@ -0,0 +1,12 @@
+IF OBJECT_ID(N'<#= ObjectView #>', N'V') IS NULL
+	EXECUTE ('CREATE VIEW <#= ObjectView #> AS SELECT NULL AS CREATE_OR_REPLACE');
+GO
+
+ALTER VIEW <#= ObjectView #> AS
+-- This code was generated by <#= TemplateName #> @ <#= DateTime.Now.ToString() #>
+SELECT
+<#= ColumnListClause #>
+FROM
+<#= JoinClause #>
+;
+GO