QDjango
QDjangoMetaModel.h
1/*
2 * Copyright (C) 2010-2015 Jeremy Lainé
3 * Contact: https://github.com/jlaine/qdjango
4 *
5 * This file is part of the QDjango Library.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 */
17
18#ifndef QDJANGOMETAMODEL_H
19#define QDJANGOMETAMODEL_H
20
21#include <QMap>
22#include <QSharedDataPointer>
23#include <QVariant>
24
25#include "QDjango_p.h"
26
27class QDjangoMetaFieldPrivate;
28class QDjangoMetaModelPrivate;
29
34class QDJANGO_DB_EXPORT QDjangoMetaField
35{
36public:
40 QDjangoMetaField& operator=(const QDjangoMetaField &other);
41
42 QString column() const;
43 bool isAutoIncrement() const;
44 bool isBlank() const;
45 bool isNullable() const;
46 bool isUnique() const;
47 bool isValid() const;
48 QString name() const;
49 int maxLength() const;
50 QVariant toDatabase(const QVariant &value) const;
51
52private:
53 QSharedDataPointer<QDjangoMetaFieldPrivate> d;
54 friend class QDjangoMetaModel;
55};
56
64class QDJANGO_DB_EXPORT QDjangoMetaModel
65{
66public:
67 QDjangoMetaModel(const QMetaObject *model = 0);
70 QDjangoMetaModel& operator=(const QDjangoMetaModel &other);
71
72 bool isValid() const;
73
74 bool createTable() const;
75 QStringList createTableSql() const;
76 bool dropTable() const;
77
78 void load(QObject *model, const QVariantList &props, int &pos) const;
79 bool remove(QObject *model) const;
80 bool save(QObject *model) const;
81
82 QObject *foreignKey(const QObject *model, const char *name) const;
83 void setForeignKey(QObject *model, const char *name, QObject *value) const;
84
85 QString className() const;
86 QDjangoMetaField localField(const char *name) const;
87 QList<QDjangoMetaField> localFields() const;
88 QMap<QByteArray, QByteArray> foreignFields() const;
89 QByteArray primaryKey() const;
90 QString table() const;
91
92private:
93 QSharedDataPointer<QDjangoMetaModelPrivate> d;
94};
95
96#endif
The QDjangoMetaField class holds the database schema for a field.
Definition: QDjangoMetaModel.h:35
The QDjangoMetaModel class holds the database schema for a model.
Definition: QDjangoMetaModel.h:65