1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
#include "mainwindow.h"
#include <QApplication>
#include <QMap>
#include <QTreeView>
#include <QStandardItem>
#include <QStandardItemModel>
#include <QtSql/QSqlDatabase>
#include <QtSql/QSqlQuery>
#include <QtSql/QSqlRecord>
#include <QElapsedTimer>
#include <QDebug>
typedef enum
{
FolderItem,
PlaylistItem,
TrainingItem
} ItemType;
class StandardItem : public QStandardItem
{
public:
typedef enum
{
FolderItem,
PlaylistItem,
TrainingItem
} ItemType;
StandardItem(int ai_nodeId, int ai_nodeLevel, int ai_parentId, QString ai_nodeName, ItemType ai_type)
{
m_node_id = ai_nodeId;
m_node_name = ai_nodeName;
m_node_level = ai_nodeLevel;
m_parent_id = ai_parentId;
setText(m_node_name);
if (ai_type == FolderItem)
setIcon(QIcon(":/images/folder.png"));
else if (ai_type == PlaylistItem)
setIcon(QIcon(":/images/playlist.png"));
else if (ai_type == TrainingItem)
setIcon(QIcon(":/images/training.png"));
}
int m_node_id;
QString m_node_name;
int m_node_level;
int m_parent_id;
};
typedef QMap<int, StandardItem*> MapStandardItem;
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
// MainWindow w;
// w.show();
QMap<int, MapStandardItem> map;
QStandardItemModel * model = new QStandardItemModel();
QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
db.setDatabaseName("classeur.db");
if (!db.isOpen())
{
db.open();
}
// CREATE TABLE "PLAYLISTS" (
// "ID" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
// "FOLDER_ID" INTEGER,
// "NAME" TEXT NOT NULL
// );
// CREATE TABLE "FOLDERS" (
// "ID" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
// "LEFT_RANGE" INTEGER,
// "RIGHT_RANGE" INTEGER,
// "_LEVEL_" INTEGER,
// "NAME" TEXT NOT NULL
// );
// CREATE TABLE "TRAININGS" (
// "ID" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
// "FOLDER_ID" INTEGER,
// "NAME" TEXT NOT NULL
// );
// INSERT INTO FOLDERS (LEFT_RANGE, RIGHT_RANGE, _LEVEL_, NAME) VALUES (1, 6, 1, "R1");
// INSERT INTO FOLDERS (LEFT_RANGE, RIGHT_RANGE, _LEVEL_, NAME) VALUES (2, 3, 2, "R2");
// INSERT INTO FOLDERS (LEFT_RANGE, RIGHT_RANGE, _LEVEL_, NAME) VALUES (4, 5, 2, "R3");
// INSERT INTO PLAYLISTS (FOLDER_ID, NAME) VALUES (2, "P1");
// INSERT INTO PLAYLISTS (FOLDER_ID, NAME) VALUES (2, "P2");
// INSERT INTO PLAYLISTS (FOLDER_ID, NAME) VALUES (3, "P3");
// Remplissage des tables
// for (int f=1; f <= 3; f++)
// {
// for (int p=1; p <= 25; p++)
// QSqlQuery(QString("INSERT INTO PLAYLISTS (FOLDER_ID, NAME) VALUES (%1, \"P%2\");").arg(f).arg(p));
// for (int t=1; t <= 40; t++)
// QSqlQuery(QString("INSERT INTO TRAININGS (FOLDER_ID, NAME) VALUES (%1, \"T%2\");").arg(f).arg(t));
// }
QElapsedTimer t;
t.start();
QSqlQuery query("SELECT parent.NAME as node_name, parent._LEVEL_ as node_niv, node.ID as node_id, "
"(SELECT ID FROM FOLDERS WHERE LEFT_RANGE < node.LEFT_RANGE AND RIGHT_RANGE > node.LEFT_RANGE ORDER BY _LEVEL_ DESC LIMIT 1) as parent_id "
"FROM FOLDERS AS node, FOLDERS AS parent "
"WHERE node.LEFT_RANGE BETWEEN parent.LEFT_RANGE AND parent.RIGHT_RANGE "
"GROUP BY node.NAME "
"ORDER BY node.LEFT_RANGE ");
while (query.next())
{
int node_niv = query.record().value("node_niv").toInt();
int node_id = query.record().value("node_id").toInt();
int parent_id = query.record().value("parent_id").toInt();
QString node_name = query.record().value("node_name").toString();
StandardItem * nodeItem = new StandardItem(node_id, node_niv, parent_id, node_name, StandardItem::FolderItem);
// Recherche des enfants playlists
QSqlQuery q1(QString("SELECT * FROM PLAYLISTS WHERE FOLDER_ID = %1").arg(node_id));
while (q1.next())
{
StandardItem * playlistItem = new StandardItem(q1.record().value("ID").toInt(),
node_niv + 1, node_id,
q1.record().value("NAME").toString(),
StandardItem::PlaylistItem);
nodeItem->appendRow(playlistItem);
}
// Recherche des enfants entrainements
QSqlQuery q2(QString("SELECT * FROM TRAININGS WHERE FOLDER_ID = %1").arg(node_id));
while (q2.next())
{
StandardItem * trainingItem = new StandardItem(q2.record().value("ID").toInt(),
node_niv + 1, node_id,
q2.record().value("NAME").toString(),
StandardItem::TrainingItem);
trainingItem->setText(q2.record().value("NAME").toString());
nodeItem->appendRow(trainingItem);
}
// Liste des éléments de niveau immédiatement supérieur
MapStandardItem list1 = map.value(node_niv - 1);
if (!list1.isEmpty())
{
// Si le parent existe, on lui associe son enfant (ça devrait toujours être le cas !)
StandardItem * parent = list1.value(parent_id);
if (parent)
{
parent->appendRow(nodeItem);
}
// Ajout de l'élément à la liste des éléments de même niveau
MapStandardItem list2 = map.value(node_niv);
list2.insert(nodeItem->m_node_id, nodeItem);
map.insert(node_niv, list2);
}
else
{
// Cet élément est le premier dans son niveau : on l'ajoute directement à la racine
model->appendRow(nodeItem);
list1.insert(nodeItem->m_node_id, nodeItem);
map.insert(node_niv, list1);
}
}
qWarning() << "Temps de chargement = " << t.elapsed() / 1000 << "s.";
QTreeView * view = new QTreeView;
view->setModel(model);
view->show();
return a.exec();
} |
