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50
51#include <QtSql>
52
53#include "editablesqlmodel.h"
54
55EditableSqlModel::EditableSqlModel(QObject *parent)
56 : QSqlQueryModel(parent)
57{
58}
59
60//! [0]
61Qt::ItemFlags EditableSqlModel::flags(
62 const QModelIndex &index) const
63{
64 Qt::ItemFlags flags = QSqlQueryModel::flags(index);
65 if (index.column() == 1 || index.column() == 2)
66 flags |= Qt::ItemIsEditable;
67 return flags;
68}
69//! [0]
70
71//! [1]
72bool EditableSqlModel::setData(const QModelIndex &index, const QVariant &value, int /* role */)
73{
74 if (index.column() < 1 || index.column() > 2)
75 return false;
76
77 QModelIndex primaryKeyIndex = QSqlQueryModel::index(row: index.row(), column: 0);
78 int id = data(item: primaryKeyIndex).toInt();
79
80 clear();
81
82 bool ok;
83 if (index.column() == 1) {
84 ok = setFirstName(personId: id, firstName: value.toString());
85 } else {
86 ok = setLastName(personId: id, lastName: value.toString());
87 }
88 refresh();
89 return ok;
90}
91//! [1]
92
93void EditableSqlModel::refresh()
94{
95 setQuery(query: "select * from person");
96 setHeaderData(section: 0, orientation: Qt::Horizontal, value: QObject::tr(s: "ID"));
97 setHeaderData(section: 1, orientation: Qt::Horizontal, value: QObject::tr(s: "First name"));
98 setHeaderData(section: 2, orientation: Qt::Horizontal, value: QObject::tr(s: "Last name"));
99}
100
101//! [2]
102bool EditableSqlModel::setFirstName(int personId, const QString &firstName)
103{
104 QSqlQuery query;
105 query.prepare(query: "update person set firstname = ? where id = ?");
106 query.addBindValue(val: firstName);
107 query.addBindValue(val: personId);
108 return query.exec();
109}
110//! [2]
111
112bool EditableSqlModel::setLastName(int personId, const QString &lastName)
113{
114 QSqlQuery query;
115 query.prepare(query: "update person set lastname = ? where id = ?");
116 query.addBindValue(val: lastName);
117 query.addBindValue(val: personId);
118 return query.exec();
119}
120

source code of qtbase/examples/sql/querymodel/editablesqlmodel.cpp