/// <summary>
/// 创建一个包装好的OrderBySqlClauseBuilder
/// </summary>
/// <param name="sourceBuilder"></param>
/// <returns></returns>
public static OrderBySqlClauseBuilder CreateWrapperBuilder(IEnumerable <IOrderByRequestItem> sourceBuilder)
{
OrderBySqlClauseBuilder result = sourceBuilder as OrderBySqlClauseBuilder;
if (result == null)
{
result = new OrderBySqlClauseBuilder();
foreach (IOrderByRequestItem sourceItem in sourceBuilder)
{
result.Add(new SqlClauseBuilderItemOrd(sourceItem));
}
}
return(result);
}
/// <summary>
/// 根据条件和排序得到查询语句
/// </summary>
/// <param name="condition"></param>
/// <param name="orderByBuilder"></param>
/// <param name="tableName"></param>
/// <returns></returns>
public string GetLoadSqlByBuilder(string condition, OrderBySqlClauseBuilder orderByBuilder, string tableName)
{
string sql = string.Format("SELECT * FROM {0}", tableName);
if (condition.IsNotEmpty())
{
sql = sql + string.Format(" WHERE {0}", condition);
}
if (orderByBuilder != null)
{
sql = sql + string.Format(" ORDER BY {0}", orderByBuilder.ToSqlString(TSqlBuilder.Instance));
}
return(sql);
}
/// <summary>
/// 构造查询语句
/// </summary>
/// <param name="condition"></param>
/// <param name="orderByBuilder"></param>
/// <param name="tableName"></param>
/// <param name="timePoint"></param>
/// <returns></returns>
public string GetLoadSqlByBuilder(string condition, OrderBySqlClauseBuilder orderByBuilder, DateTime timePoint, string tableName)
{
string sql = string.Format("SELECT * FROM {0} WHERE ", tableName);
ConnectiveSqlClauseCollection timePointBuilder = VersionStrategyQuerySqlBuilder.Instance.TimePointToBuilder(timePoint);
if (condition.IsNotEmpty())
{
sql = sql + condition;
}
sql += " AND " + timePointBuilder.ToSqlString(TSqlBuilder.Instance);
if (orderByBuilder != null)
{
sql = sql + string.Format(" ORDER BY {0}", orderByBuilder.ToSqlString(TSqlBuilder.Instance));
}
return(sql);
}
/// <summary>
///
/// </summary>
/// <param name="sqlContext"></param>
/// <param name="condition"></param>
/// <param name="orderByBuilder"></param>
/// <param name="afterLoadAction"></param>
/// <param name="action"></param>
/// <param name="createNewAction"></param>
/// <param name="timePoint"></param>
/// <param name="tableName"></param>
/// <param name="mappings"></param>
public void RegisterLoadByBuilderInContext(SqlContextItem sqlContext, string condition, OrderBySqlClauseBuilder orderByBuilder, Action <TCollection> afterLoadAction, Action <TCollection> action, Func <DataRow, T> createNewAction, DateTime timePoint, string tableName, ORMappingItemCollection mappings)
{
if (mappings == null)
{
mappings = this.GetQueryMappingInfo();
}
if (tableName.IsNullOrEmpty())
{
tableName = GetQueryTableName(mappings, timePoint);
}
string sql = GetLoadSqlByBuilder(condition, orderByBuilder, timePoint, tableName);
this.RegisterQueryData(sqlContext, tableName, mappings, sql, (collection) =>
{
if (afterLoadAction != null)
{
afterLoadAction(collection);
}
if (action != null)
{
action(collection);
}
},
createNewAction);
}
