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39
40#ifndef QSQLDATABASE_H
41#define QSQLDATABASE_H
42
43#include <QtSql/qtsqlglobal.h>
44#include <QtCore/qstring.h>
45
46QT_BEGIN_NAMESPACE
47
48
49class QSqlError;
50class QSqlDriver;
51class QSqlIndex;
52class QSqlRecord;
53class QSqlQuery;
54class QSqlDatabasePrivate;
55
56class Q_SQL_EXPORT QSqlDriverCreatorBase
57{
58public:
59 virtual ~QSqlDriverCreatorBase() {}
60 virtual QSqlDriver *createObject() const = 0;
61};
62
63template <class T>
64class QSqlDriverCreator : public QSqlDriverCreatorBase
65{
66public:
67 QSqlDriver *createObject() const override { return new T; }
68};
69
70class Q_SQL_EXPORT QSqlDatabase
71{
72public:
73 QSqlDatabase();
74 QSqlDatabase(const QSqlDatabase &other);
75 ~QSqlDatabase();
76
77 QSqlDatabase &operator=(const QSqlDatabase &other);
78
79 bool open();
80 bool open(const QString& user, const QString& password);
81 void close();
82 bool isOpen() const;
83 bool isOpenError() const;
84 QStringList tables(QSql::TableType type = QSql::Tables) const;
85 QSqlIndex primaryIndex(const QString& tablename) const;
86 QSqlRecord record(const QString& tablename) const;
87 QSqlQuery exec(const QString& query = QString()) const;
88 QSqlError lastError() const;
89 bool isValid() const;
90
91 bool transaction();
92 bool commit();
93 bool rollback();
94
95 void setDatabaseName(const QString& name);
96 void setUserName(const QString& name);
97 void setPassword(const QString& password);
98 void setHostName(const QString& host);
99 void setPort(int p);
100 void setConnectOptions(const QString& options = QString());
101 QString databaseName() const;
102 QString userName() const;
103 QString password() const;
104 QString hostName() const;
105 QString driverName() const;
106 int port() const;
107 QString connectOptions() const;
108 QString connectionName() const;
109 void setNumericalPrecisionPolicy(QSql::NumericalPrecisionPolicy precisionPolicy);
110 QSql::NumericalPrecisionPolicy numericalPrecisionPolicy() const;
111
112 QSqlDriver* driver() const;
113
114 static const char *defaultConnection;
115
116 static QSqlDatabase addDatabase(const QString& type,
117 const QString& connectionName = QLatin1String(defaultConnection));
118 static QSqlDatabase addDatabase(QSqlDriver* driver,
119 const QString& connectionName = QLatin1String(defaultConnection));
120 static QSqlDatabase cloneDatabase(const QSqlDatabase &other, const QString& connectionName);
121 static QSqlDatabase cloneDatabase(const QString &other, const QString& connectionName);
122 static QSqlDatabase database(const QString& connectionName = QLatin1String(defaultConnection),
123 bool open = true);
124 static void removeDatabase(const QString& connectionName);
125 static bool contains(const QString& connectionName = QLatin1String(defaultConnection));
126 static QStringList drivers();
127 static QStringList connectionNames();
128 static void registerSqlDriver(const QString &name, QSqlDriverCreatorBase *creator);
129 static bool isDriverAvailable(const QString &name);
130
131protected:
132 explicit QSqlDatabase(const QString& type);
133 explicit QSqlDatabase(QSqlDriver* driver);
134
135private:
136 friend class QSqlDatabasePrivate;
137 QSqlDatabasePrivate *d;
138};
139
140#ifndef QT_NO_DEBUG_STREAM
141Q_SQL_EXPORT QDebug operator<<(QDebug, const QSqlDatabase &);
142#endif
143
144QT_END_NAMESPACE
145
146#endif // QSQLDATABASE_H
147

source code of qtbase/src/sql/kernel/qsqldatabase.h