public QueryTable(string alias, int explicitPrimaryKeys, JoinType?joinType, SqlStatementBuilder queryBuilder, IQueryTables tables, ISqlStatement parentStatement)
{
Alias = alias ?? throw new ArgumentNullException(nameof(alias));
ExplicitPrimaryKeys = explicitPrimaryKeys;
JoinType = joinType;
QueryBuilder = queryBuilder ?? throw new ArgumentNullException(nameof(queryBuilder));
Tables = tables ?? throw new ArgumentNullException(nameof(tables));
ParentStatement = parentStatement ?? throw new ArgumentNullException(nameof(parentStatement));
}
/// <summary>
/// Build a list of columns
/// </summary>
static IEnumerable <ISelectColumn> BuildColumns(SqlStatementBuilder queryParts, IQueryTables tables)
{
return(queryParts.AllSelectColumns.Select(BuildColumn));
ISelectColumn BuildColumn((bool isRowId, SqlStatementBuilder.SelectColumn col) col) =>
new SelectColumn(
new [] { (col.col.Table, col.col.Column, CodingConstants.Null.String) },
/// <summary>
/// Return a table object for the SELECT and each JOIN
/// </summary>
static IEnumerable <IQueryTable> BuildTables(SqlStatementBuilder queryBuilder, IQueryTables tables, ISqlStatement sqlStatement)
{
yield return(new QueryTable(queryBuilder.PrimaryTableAlias, queryBuilder.PrimaryTableKeys.Count, null, queryBuilder, tables, sqlStatement));
foreach (var j in queryBuilder.Joins)
{
yield return(new QueryTable(j.Alias, j.PrimaryKeyColumns.Count, j.JoinType, queryBuilder, tables, sqlStatement));
}
}
public SelectColumns(SqlStatementBuilder queryBuilder, IQueryTables tables)
{
// TODO: this constructor is called a lot. Why??
Columns = BuildColumns(queryBuilder, tables).Enumerate();
}
