public SqlExpressionVisitor(IDataSourceTagSpecific dataSourceTagSpecific, IUnitOfWorkContext unitOfWorkContext, IList<IDataParameter> commandParameters)
{
if ((object)dataSourceTagSpecific == null)
throw new ArgumentNullException("dataSourceTagSpecific");
if ((object)unitOfWorkContext == null)
throw new ArgumentNullException("unitOfWorkContext");
if ((object)commandParameters == null)
throw new ArgumentNullException("commandParameters");
this.dataSourceTagSpecific = dataSourceTagSpecific;
this.unitOfWorkContext = unitOfWorkContext;
this.commandParameters = commandParameters;
}
public static string GetFilterText(IDataSourceTagSpecific dataSourceTagSpecific, IUnitOfWorkContext unitOfWorkContext, IList<IDataParameter> commandParameters, IExpression expression)
{
SqlExpressionVisitor expressionVisitor;
string expressionText;
if ((object)dataSourceTagSpecific == null)
throw new ArgumentNullException("dataSourceTagSpecific");
if ((object)unitOfWorkContext == null)
throw new ArgumentNullException("unitOfWorkContext");
if ((object)commandParameters == null)
throw new ArgumentNullException("commandParameters");
if ((object)expression == null)
throw new ArgumentNullException("expression");
expressionVisitor = new SqlExpressionVisitor(dataSourceTagSpecific, unitOfWorkContext, commandParameters);
expressionVisitor.Visit(expression);
expressionText = expressionVisitor.Strings.ToString();
return expressionText;
}
public static string GetSortText(IDataSourceTagSpecific dataSourceTagSpecific, IUnitOfWorkContext unitOfWorkContext, IList<IDataParameter> commandParameters, Order[] orders)
{
string expressionText;
List<string> sortNames;
if ((object)dataSourceTagSpecific == null)
throw new ArgumentNullException("dataSourceTagSpecific");
if ((object)unitOfWorkContext == null)
throw new ArgumentNullException("unitOfWorkContext");
if ((object)commandParameters == null)
throw new ArgumentNullException("commandParameters");
if ((object)orders == null)
throw new ArgumentNullException("orders");
sortNames = new List<string>();
if ((object)orders != null)
{
foreach (Order order in orders)
{
if ((object)order.Facet == null)
continue;
sortNames.Add(string.Format("{0} {1}", dataSourceTagSpecific.GetAliasedColumnName("t0", order.Facet.Name), order.Ascending ? "ASC" : "DESC"));
}
}
if (sortNames.Count <= 0)
sortNames.Add("1");
expressionText = string.Join(", ", sortNames.ToArray());
return expressionText;
}