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50
51#include "sqlcontactmodel.h"
52
53#include <QDebug>
54#include <QSqlError>
55#include <QSqlQuery>
56
57static void createTable()
58{
59 if (QSqlDatabase::database().tables().contains(QStringLiteral("Contacts"))) {
60 // The table already exists; we don't need to do anything.
61 return;
62 }
63
64 QSqlQuery query;
65 if (!query.exec(
66 query: "CREATE TABLE IF NOT EXISTS 'Contacts' ("
67 " 'name' TEXT NOT NULL,"
68 " PRIMARY KEY(name)"
69 ")")) {
70 qFatal(msg: "Failed to query database: %s", qPrintable(query.lastError().text()));
71 }
72
73 query.exec(query: "INSERT INTO Contacts VALUES('Albert Einstein')");
74 query.exec(query: "INSERT INTO Contacts VALUES('Ernest Hemingway')");
75 query.exec(query: "INSERT INTO Contacts VALUES('Hans Gude')");
76}
77
78SqlContactModel::SqlContactModel(QObject *parent) :
79 QSqlQueryModel(parent)
80{
81 createTable();
82
83 QSqlQuery query;
84 if (!query.exec(query: "SELECT * FROM Contacts"))
85 qFatal(msg: "Contacts SELECT query failed: %s", qPrintable(query.lastError().text()));
86
87 setQuery(query);
88 if (lastError().isValid())
89 qFatal(msg: "Cannot set query on SqlContactModel: %s", qPrintable(lastError().text()));
90}
91

source code of qtquickcontrols2/examples/quickcontrols2/chattutorial/chapter5-styling/sqlcontactmodel.cpp