KDb

KDbSqlTypes.h
1 /* This file is part of the KDE project
2  Copyright (C) 2003, 2006 JarosÅ‚aw Staniek <[email protected]>
3 
4  This library is free software; you can redistribute it and/or
5  modify it under the terms of the GNU Library General Public
6  License as published by the Free Software Foundation; either
7  version 2 of the License, or (at your option) any later version.
8 
9  This library is distributed in the hope that it will be useful,
10  but WITHOUT ANY WARRANTY; without even the implied warranty of
11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  Library General Public License for more details.
13 
14  You should have received a copy of the GNU Library General Public License
15  along with this library; see the file COPYING.LIB. If not, write to
16  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17  * Boston, MA 02110-1301, USA.
18 */
19 
20 #ifndef SQLTYPES_H
21 #define SQLTYPES_H
22 
23 #include <QVariant>
24 #include <QList>
25 
26 #include "KDbExpression.h"
27 #include "KDbOrderByColumn.h"
28 
29 struct dateType {
30  int year;
31  int month;
32  int day;
33 };
34 
35 struct realType {
36  int integer;
37  int fractional;
38 };
39 
40 //! @internal
42 {
44  : columnNumber(-1)
45  , order(KDbOrderByColumn::SortOrder::Ascending) {
46  }
47 
48  void setColumnByNameOrNumber(const QVariant& nameOrNumber) {
49  if (nameOrNumber.type() == QVariant::String) {
50  aliasOrName = nameOrNumber.toString();
51  columnNumber = -1;
52  } else {
53  columnNumber = nameOrNumber.toInt();
55  }
56  }
57 
58  //! Can include a "tablename." prefix
60  //! Optional, used instead of aliasOrName to refer to column
61  //! by its number rather than name.
64 };
65 
66 //! @internal
68  SelectOptionsInternal() : orderByColumns(nullptr) {}
70  delete orderByColumns; // delete because this is internal temp. structure
71  }
72  KDbExpression whereExpr;
73  QList<OrderByColumnInternal>* orderByColumns;
74 };
75 
76 class KDbExpressionPtr
77 {
78 public:
79  inline explicit KDbExpressionPtr(KDbExpression *exp) : e(exp) {}
80  inline KDbExpression toExpr() {
81  KDbExpression exp(*e);
82  delete e;
83  e = nullptr;
84  return exp;
85  }
86  inline KDbNArgExpression toNArg() {
87  KDbNArgExpression exp(e->toNArg());
88  delete e;
89  e = nullptr;
90  return exp;
91  }
92 //private:
93  KDbExpression *e;
94 private:
95  Q_DISABLE_COPY(KDbExpressionPtr)
96 };
97 
98 QDebug operator<<(QDebug dbg, const KDbExpressionPtr& expr);
99 
100 #endif
void clear()
QDataStream & operator<<(QDataStream &out, const KDateTime &dateTime)
QVariant::Type type() const const
int toInt(bool *ok) const const
QString aliasOrName
Can include a "tablename." prefix.
Definition: KDbSqlTypes.h:59
The KDbNArgExpression class represents a base class N-argument expression.
SortOrder
Column sort order.
The KDbExpression class represents a base class for all expressions.
Definition: KDbExpression.h:51
int columnNumber
Optional, used instead of aliasOrName to refer to column by its number rather than name.
Definition: KDbSqlTypes.h:62
QString toString() const const
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