/// <summary>
/// 添加一个构造项
/// </summary>
/// <typeparam name="T">数据的类型</typeparam>
/// <returns>返回这个Builder自己，便于编写连续AppendItem语句，例如b.AppendItem(...).AppendItem(...)</returns>
/// <param name="dataField">Sql语句中的字段名</param>
/// <param name="data">操作的数据</param>
/// <param name="op">操作运算符</param>
/// <param name="template">模板的样式</param>
/// <param name="isExpression">操作的数据是否是表达式</param>
public virtual TBuilder AppendItem <T>(string dataField, T data, string op, string template, bool isExpression)
{
SqlClauseBuilderItemUW item = (SqlClauseBuilderItemUW)CreateBuilderItem();
item.DataField = dataField;
item.IsExpression = isExpression;
item.Operation = op;
item.Data = data;
item.Template = template;
List.Add(item);
return((TBuilder)this);
}
/// <summary>
///
/// </summary>
/// <param name="builderItem"></param>
/// <returns></returns>
protected override bool DecideIsMatched(SqlCaluseBuilderItemWithData builderItem)
{
bool result = false;
/*
* string pattern2 = @"\b(?i)(constains){1}\s*\({1}.*\){1}";
* foreach (Match match in Regex.Matches(input, pattern2))
* {
* Console.WriteLine(match.Value);
* }
*/
SqlClauseBuilderItemUW uwItem = builderItem as SqlClauseBuilderItemUW;
if (uwItem != null)
{
if (uwItem.Template.IsNotEmpty())
{
ParseResult pr = ExpressionParser.Parse(uwItem.Template, false);
if (pr.Identifiers != null)
{
pr.Identifiers.ScanIdentifiers(id =>
{
if (string.Compare(id.Identifier, "contains", true) == 0)
{
result = true;
}
return(result == false);
});
}
}
}
return(result);
}
