/// <summary>
/// 获取Where条件SQL
/// </summary>
public string GetWhereSql()
{
if (string.IsNullOrWhiteSpace(WhereBuilder.ToString().Trim()))
{
WhereBuilder.Append(" 1=1");
}
return(WhereBuilder.ToString().Trim());
}
/// <summary>
/// 使用sql查询条件
/// </summary>
/// <param name="sqlWhere"></param>
/// <param name="param"></param>
/// <returns></returns>
public ICommand <T> Where(string sqlWhere, object param = null)
{
WhereBuilder.Append(" AND " + sqlWhere);
if (param != null)
{
Params.AddDynamicParams(param);
}
return(this);
}
/// <summary>
/// 使用sql查询条件
/// </summary>
/// <param name="sqlWhere"></param>
/// <param name="param"></param>
/// <returns></returns>
public QuerySet <T> Where(string sqlWhere, object param = null)
{
WhereBuilder.Append(" AND " + sqlWhere);
if (param != null)
{
Params.AddDynamicParams(param, true);
}
return(this);
}
public PagedSelectCommandBuilder Or(string value)
=> this.Chain(() =>
{
if (WhereBuilder.Length == 0)
{
throw new InvalidOperationException("There is no WHERE clause to combine the current value with");
}
WhereBuilder.Append(" OR ").Append(value);
});
public PagedSelectCommandBuilder Where(string value)
=> this.Chain(() =>
{
if (WhereBuilder.Length > 0)
{
WhereBuilder.Append(" AND ");
}
WhereBuilder.Append(value);
});
public QuerySet <T> Where <TWhere1, TWhere2>(Expression <Func <TWhere1, TWhere2, bool> > exp)
{
var sqlWhere = new WhereExpression(exp, $"Where_{Params.ParameterNames.Count()}_", SqlProvider.ProviderOption);
WhereBuilder.Append(sqlWhere.SqlCmd);
if (sqlWhere.Param != null)
{
Params.AddDynamicParams(sqlWhere.Param);
}
return(this);
}
