1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#include "qsqlerror.h"
5#include "qdebug.h"
6
7QT_BEGIN_NAMESPACE
8
9using namespace Qt::StringLiterals;
10
11#ifndef QT_NO_DEBUG_STREAM
12QDebug operator<<(QDebug dbg, const QSqlError &s)
13{
14 QDebugStateSaver saver(dbg);
15 dbg.nospace();
16 dbg << "QSqlError(" << s.nativeErrorCode() << ", " << s.driverText()
17 << ", " << s.databaseText() << ')';
18 return dbg;
19}
20#endif
21
22class QSqlErrorPrivate : public QSharedData
23{
24public:
25 QString driverError;
26 QString databaseError;
27 QSqlError::ErrorType errorType;
28 QString errorCode;
29};
30QT_DEFINE_QESDP_SPECIALIZATION_DTOR(QSqlErrorPrivate)
31
32/*!
33 \class QSqlError
34 \brief The QSqlError class provides SQL database error information.
35
36 \ingroup database
37 \inmodule QtSql
38
39 A QSqlError object can provide database-specific error data,
40 including the driverText() and databaseText() messages (or both
41 concatenated together as text()), and the nativeErrorCode() and
42 type().
43
44 \sa QSqlDatabase::lastError(), QSqlQuery::lastError()
45*/
46
47/*!
48 \enum QSqlError::ErrorType
49
50 This enum type describes the context in which the error occurred, e.g., a connection error, a statement error, etc.
51
52 \value NoError No error occurred.
53 \value ConnectionError Connection error.
54 \value StatementError SQL statement syntax error.
55 \value TransactionError Transaction failed error.
56 \value UnknownError Unknown error.
57*/
58
59/*! \fn QSqlError::QSqlError(QSqlError &&other)
60 Move-constructs a QSqlError instance, making it point at the same
61 object that \a other was pointing to.
62
63 \note The moved-from object \a other is placed in a
64 partially-formed state, in which the only valid operations are
65 destruction and assignment of a new value.
66
67 \since 5.10
68*/
69
70/*! \fn QSqlError::operator=(QSqlError &&other)
71 Move-assigns \a other to this QSqlError instance.
72
73 \note The moved-from object \a other is placed in a
74 partially-formed state, in which the only valid operations are
75 destruction and assignment of a new value.
76
77 \since 5.10
78*/
79
80/*! \fn QSqlError::swap(QSqlError &other)
81 \memberswap{error}
82 \since 5.10
83*/
84
85/*!
86 Constructs an error containing the driver error text \a
87 driverText, the database-specific error text \a databaseText, the
88 type \a type and the error code \a code.
89*/
90QSqlError::QSqlError(const QString &driverText, const QString &databaseText,
91 ErrorType type, const QString &code)
92 : d(new QSqlErrorPrivate)
93{
94 d->driverError = driverText;
95 d->databaseError = databaseText;
96 d->errorType = type;
97 d->errorCode = code;
98}
99
100
101/*!
102 Creates a copy of \a other.
103*/
104QSqlError::QSqlError(const QSqlError &other)
105 = default;
106
107/*!
108 Assigns the \a other error's values to this error.
109*/
110
111QSqlError &QSqlError::operator=(const QSqlError &other)
112 = default;
113
114
115/*!
116 Compare the \a other error's type() and nativeErrorCode()
117 to this error and returns \c true, if it equal.
118*/
119
120bool QSqlError::operator==(const QSqlError &other) const
121{
122 return (d->errorType == other.d->errorType &&
123 d->errorCode == other.d->errorCode);
124}
125
126
127/*!
128 Compare the \a other error's type() and nativeErrorCode()
129 to this error and returns \c true if it is not equal.
130*/
131
132bool QSqlError::operator!=(const QSqlError &other) const
133{
134 return (d->errorType != other.d->errorType ||
135 d->errorCode != other.d->errorCode);
136}
137
138
139/*!
140 Destroys the object and frees any allocated resources.
141*/
142
143QSqlError::~QSqlError()
144 = default;
145
146/*!
147 Returns the text of the error as reported by the driver. This may
148 contain database-specific descriptions. It may also be empty.
149
150 \sa databaseText(), text()
151*/
152QString QSqlError::driverText() const
153{
154 return d->driverError;
155}
156
157/*!
158 Returns the text of the error as reported by the database. This
159 may contain database-specific descriptions; it may be empty.
160
161 \sa driverText(), text()
162*/
163
164QString QSqlError::databaseText() const
165{
166 return d->databaseError;
167}
168
169/*!
170 Returns the error type, or -1 if the type cannot be determined.
171*/
172
173QSqlError::ErrorType QSqlError::type() const
174{
175 return d->errorType;
176}
177
178/*!
179 Returns the database-specific error code, or an empty string if
180 it cannot be determined.
181 \note Some drivers (like DB2 or ODBC) may return more than one
182 error code. When this happens, \c ; is used as separator between
183 the error codes.
184*/
185
186QString QSqlError::nativeErrorCode() const
187{
188 return d->errorCode;
189}
190
191/*!
192 This is a convenience function that returns databaseText() and
193 driverText() concatenated into a single string.
194
195 \sa driverText(), databaseText()
196*/
197
198QString QSqlError::text() const
199{
200 QString result = d->databaseError;
201 if (!d->databaseError.isEmpty() && !d->driverError.isEmpty() && !d->databaseError.endsWith(c: u'\n'))
202 result += u' ';
203 result += d->driverError;
204 return result;
205}
206
207/*!
208 Returns \c true if an error is set, otherwise false.
209
210 Example:
211 \snippet code/src_sql_kernel_qsqlerror.cpp 0
212
213 \sa type()
214*/
215bool QSqlError::isValid() const
216{
217 return d->errorType != NoError;
218}
219
220QT_END_NAMESPACE
221

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source code of qtbase/src/sql/kernel/qsqlerror.cpp