/// <summary>
/// 调整过滤串:数据引擎要求设置给
/// WherePart的过滤串必须是" and "开头
/// </summary>
private void SetFilterString(DynamicQuerySetting dynamicQuerySetting)
{
if (!string.IsNullOrEmpty(this._filterString))
{
dynamicQuerySetting.WherePart = " AND " + this._filterString;
}
}
private DynamicQuerySetting GetDynamicQuert4SqlQuerySetting(QuerySetting qs)
{
DynamicQuerySetting dynamicQuerySetting = new DynamicQuerySetting();
string sourceSelectPart = this.GetSourceSelectPart(qs);
string finalSelectPart = string.Empty;
if (!string.IsNullOrEmpty(this._filterString))
{
finalSelectPart = GetFinalSelectPartWhenHasFilter(sourceSelectPart);
if (!ContainsUfWhereString(sourceSelectPart))
{
this.SetFilterString(dynamicQuerySetting);
}
}
else
{
finalSelectPart = GetFinalSelectPartWhenNoFilter(sourceSelectPart);
}
// 当sourceSelectPart不包含"{{UFWHERE}}"时,finalSelectPart
// 必然为空,从而不会设置dynamicQuerySetting.SelectPart
// 此时如果filterString不为空，会在以上的处理中设置在
// dynamicQuerySetting.WherePart之中
if (!string.IsNullOrEmpty(finalSelectPart))
{
dynamicQuerySetting.SelectPart = finalSelectPart;
}
return(dynamicQuerySetting);
}
/// <summary>
/// 1.this._filterString为空;
/// 原始的selectPart含有{{UFWHERE}},则把{{UFWHERE}}替换成where
/// 2.this._filterString不为空,则把this._filterString包装成where字句并替换{{UFWHERE}};
/// A.原始的selectPart含有{{UFWHERE}}:
/// 则把this._filterString包装成where字句并替换{{UFWHERE}},
/// 此时不设置DynamicQuerySetting.WherePart
/// B.原始的selectPart不含有{{UFWHERE}}：
/// 此时仅仅设置DynamicQuerySetting.WherePart = " AND " + this._filterString
/// </summary>
/// <returns>
/// 返回值为一个动态设置好sql信息的数据引擎定义的对象。 注意：
/// DynamicQuerySetting对象是数据引擎允许在代码中动态设置sql
/// 的实现方式，因此设置此对象之后原来在UAP中预置的selectpart
/// 将被忽略，所以需要将原来设置的selectpart相应信息转移到
/// DynamicQuerySetting对象中
/// </returns>
private DynamicQuerySetting GetDynamicQuerySetting()
{
QuerySetting qs = this.GetQuerySetting();
if (qs is SQLQuerySetting)
{
return(this.GetDynamicQuert4SqlQuerySetting(qs));
}
DynamicQuerySetting dynamicQuerySetting = new DynamicQuerySetting();
this.SetFilterString(dynamicQuerySetting);
if (!string.IsNullOrEmpty(this._extendingDataSourceTempDBName))
{
dynamicQuerySetting.ChildQueryTmpTables[this._extendingDataSourceTempDBName] = this._extendingDataSourceTempDBName;
}
return(dynamicQuerySetting);
}
