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39
40#ifndef QSQLTABLEMODEL_P_H
41#define QSQLTABLEMODEL_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists for the convenience
48// of qsql*model.h . This header file may change from version to version
49// without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtSql/private/qtsqlglobal_p.h>
55#include "private/qsqlquerymodel_p.h"
56#include "QtSql/qsqlindex.h"
57#include "QtCore/qmap.h"
58
59QT_REQUIRE_CONFIG(sqlmodel);
60
61QT_BEGIN_NAMESPACE
62
63class Q_AUTOTEST_EXPORT QSqlTableModelPrivate: public QSqlQueryModelPrivate
64{
65 Q_DECLARE_PUBLIC(QSqlTableModel)
66
67public:
68 QSqlTableModelPrivate()
69 : sortColumn(-1),
70 sortOrder(Qt::AscendingOrder),
71 strategy(QSqlTableModel::OnRowChange),
72 busyInsertingRows(false)
73 {}
74 ~QSqlTableModelPrivate();
75
76 void clear();
77 virtual void clearCache();
78 QSqlRecord record(const QVector<QVariant> &values) const;
79
80 bool exec(const QString &stmt, bool prepStatement,
81 const QSqlRecord &rec, const QSqlRecord &whereValues);
82 virtual void revertCachedRow(int row);
83 virtual int nameToIndex(const QString &name) const;
84 QString strippedFieldName(const QString &name) const;
85 int insertCount(int maxRow = -1) const;
86 void initRecordAndPrimaryIndex();
87
88 QSqlDatabase db;
89
90 int sortColumn;
91 Qt::SortOrder sortOrder;
92
93 QSqlTableModel::EditStrategy strategy;
94 bool busyInsertingRows;
95
96 QSqlQuery editQuery = { QSqlQuery(nullptr) };
97 QSqlIndex primaryIndex;
98 QString tableName;
99 QString filter;
100 QString autoColumn;
101
102 enum Op { None, Insert, Update, Delete };
103
104 class ModifiedRow
105 {
106 public:
107 inline ModifiedRow(Op o = None, const QSqlRecord &r = QSqlRecord())
108 : m_op(None), m_db_values(r), m_insert(o == Insert)
109 { setOp(o); }
110 inline Op op() const { return m_op; }
111 inline void setOp(Op o)
112 {
113 if (o == None)
114 m_submitted = true;
115 if (o == m_op)
116 return;
117 m_submitted = (o != Insert && o != Delete);
118 m_op = o;
119 m_rec = m_db_values;
120 setGenerated(r&: m_rec, g: m_op == Delete);
121 }
122 inline const QSqlRecord &rec() const { return m_rec; }
123 inline QSqlRecord& recRef() { return m_rec; }
124 inline void setValue(int c, const QVariant &v)
125 {
126 m_submitted = false;
127 m_rec.setValue(i: c, val: v);
128 m_rec.setGenerated(i: c, generated: true);
129 }
130 inline bool submitted() const { return m_submitted; }
131 inline void setSubmitted()
132 {
133 m_submitted = true;
134 setGenerated(r&: m_rec, g: false);
135 if (m_op == Delete) {
136 m_rec.clearValues();
137 }
138 else {
139 m_op = Update;
140 m_db_values = m_rec;
141 setGenerated(r&: m_db_values, g: true);
142 }
143 }
144 inline void refresh(bool exists, const QSqlRecord& newvals)
145 {
146 m_submitted = true;
147 if (exists) {
148 m_op = Update;
149 m_db_values = newvals;
150 m_rec = newvals;
151 setGenerated(r&: m_rec, g: false);
152 } else {
153 m_op = Delete;
154 m_rec.clear();
155 m_db_values.clear();
156 }
157 }
158 inline bool insert() const { return m_insert; }
159 inline void revert()
160 {
161 if (m_submitted)
162 return;
163 if (m_op == Delete)
164 m_op = Update;
165 m_rec = m_db_values;
166 setGenerated(r&: m_rec, g: false);
167 m_submitted = true;
168 }
169 inline QSqlRecord primaryValues(const QSqlRecord& pi) const
170 {
171 if (m_op == None || m_op == Insert)
172 return QSqlRecord();
173
174 return m_db_values.keyValues(keyFields: pi);
175 }
176 private:
177 inline static void setGenerated(QSqlRecord& r, bool g)
178 {
179 for (int i = r.count() - 1; i >= 0; --i)
180 r.setGenerated(i, generated: g);
181 }
182 Op m_op;
183 QSqlRecord m_rec;
184 QSqlRecord m_db_values;
185 bool m_submitted;
186 bool m_insert;
187 };
188
189 typedef QMap<int, ModifiedRow> CacheMap;
190 CacheMap cache;
191};
192
193class QSqlTableModelSql: public QSqlQueryModelSql
194{
195public:
196};
197
198QT_END_NAMESPACE
199
200#endif // QSQLTABLEMODEL_P_H
201

source code of qtbase/src/sql/models/qsqltablemodel_p.h