/// <summary>
/// Join是否已经存在
/// </summary>
/// <param name="forgeinTable">关联表</param>
/// <param name="joinType">Join类型</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
/// <remarks>
/// <para>创建：Teddy</para>
/// <para>日期：2016-10-17</para>
/// </remarks>
internal bool ExitJoin(TableSchema forgeinTable, JoinType joinType = JoinType.INNER)
{
var tableName = forgeinTable.GetTableName();
var joinStruct = new TableStruct {
TableOrViewAliasName = forgeinTable.TableAliasName, TableOrViewName = tableName, JoinType = joinType
};
return(joins.ContainsKey(joinStruct));
}
/// <summary>
/// Joins the specified forgein table.
/// </summary>
/// <param name="forgeinTable">The forgein table.</param>
/// <param name="onWhere">The on where.</param>
/// <param name="joinType">Type of the join.</param>
/// <returns>FromClip.</returns>
/// <exception cref="NameDuplicatedException">In joins list: tableName - + tableName</exception>
/// <remarks><para>创建：Teddy</para>
/// <para>日期：2016-9-7</para></remarks>
public FromClip Join(TableSchema forgeinTable, WhereClip onWhere, JoinType joinType = JoinType.INNER)
{
var tableName = forgeinTable.GetTableName();
var joinStruct = new TableStruct {
TableOrViewAliasName = forgeinTable.TableAliasName, TableOrViewName = tableName, JoinType = joinType
};
if (joins.ContainsKey(joinStruct))
{
throw new NameDuplicatedException("In joins list: tableName - " + tableName);
}
joins.Add(joinStruct, new KeyValuePair <string, WhereClip>(tableName, onWhere));
return(this);
}
