public SqlUpdateCommand GenerateSqlCreateView(int databaseVersion, out int createOrderIndex)
{
createOrderIndex = 0;
List <string> sqls = new List <string>();
if (IsView)
{
string viewSql = DatabaseDefinition.GetViewSql(TableName, databaseVersion, out createOrderIndex);
if (viewSql != "")
{
// If we update, the view may be created in a version before
StringBuilder sql = new StringBuilder();
sql.AppendLine("if exists (select * from sys.views where object_id = object_id(N'[dbo].[" + TableName + "View]'))");
sql.Append("drop view [" + TableName + "View]");
sqls.Add(sql.ToString());
sql = new StringBuilder();
sql.AppendLine("create view [" + TableName + "View] as");
sql.Append(viewSql);
sqls.Add(sql.ToString());
}
}
return(new SqlUpdateCommand(sqls.ToArray()));
}
/// <summary>
/// Generates SQL to create the latest view until the specified database version.
/// </summary>
/// <param name="databaseVersion">The last database version to care about.</param>
/// <param name="createdInDatabaseVersion">The database verision in which the view is defined.</param>
/// <returns>A SQL command as a string. An empty string if no view definition could be found.</returns>
public string[] GenerateSqlCreateLatestView(int databaseVersion, out int createdInDatabaseVersion, out int createOrderIndex)
{
createdInDatabaseVersion = 0;
createOrderIndex = 0;
List <string> sqls = new List <string>();
string viewSql = "";
int version = 0;
while (version <= databaseVersion)
{
version++;
int createOrderIndexTemp;
string tmpViewSql = DatabaseDefinition.GetViewSql(TableName, version, out createOrderIndexTemp);
if (tmpViewSql != "")
{
viewSql = tmpViewSql;
createdInDatabaseVersion = version;
createOrderIndex = createOrderIndexTemp;
}
}
if (viewSql == "" && IsView)
{
throw new DatabaseSchemaException("View for table '" + TableName + "' is missing.");
}
if (viewSql != "")
{
// If we update, the view may be created in a version before
StringBuilder sql = new StringBuilder();
sql.AppendLine("if exists (select * from sys.views where object_id = object_id(N'[dbo].[" + TableName + "View]'))");
sql.Append("drop view [" + TableName + "View]");
sqls.Add(sql.ToString());
sql = new StringBuilder();
sql.AppendLine("create view [" + TableName + "View] as");
sql.Append(viewSql);
sqls.Add(sql.ToString());
}
return(sqls.ToArray());
}
