// Union -------------------------------------
/// <summary>
///
/// </summary>
/// <param name="unionClause">The union clause to consider.</param>
public IDbSingleQuery Union(DbQueryUnionKind kind, IDbSingleQuery query)
{
if (UnionClauses == null)
{
UnionClauses = new List <DbQueryUnionClause>();
}
UnionClauses.Add(new DbQueryUnionClause()
{
Kind = kind, Query = query
});
return(this);
}
// ------------------------------------------
// ACCESSORS
// ------------------------------------------
#region Accessors
/// <summary>
/// Clones this instance.
/// </summary>
/// <returns>Returns the cloned instance.</returns>
public override object Clone(params string[] areas)
{
var clone = base.Clone(areas) as DbSingleQuery;
clone.Fields = Fields?.Select(p => p.Clone <DbField>()).ToList();
clone.UnionClauses = UnionClauses?.Select(p => p?.Clone <DbQueryUnionClause>()).ToList();
clone.FromClause = FromClause?.Clone <DbQueryFromClause>();
clone.WhereClause = WhereClause?.Clone <DbQueryWhereClause>();
clone.GroupByClause = GroupByClause?.Clone <DbQueryGroupByClause>();
clone.HavingClause = HavingClause?.Clone <DbQueryHavingClause>();
clone.OrderByClause = OrderByClause?.Clone <DbQueryOrderByClause>();
clone.ReturnedIdFields = ReturnedIdFields?.Select(p => p.Clone <DbField>()).ToList();
return(clone);
}