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
|
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtLocation module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qdeclarativereviewmodel_p.h"
#include "qdeclarativesupplier_p.h"
#include <QtCore/QDateTime>
#include <QtLocation/QPlaceReview>
QT_BEGIN_NAMESPACE
/*!
\qmltype ReviewModel
\instantiates QDeclarativeReviewModel
\inqmlmodule QtLocation
\ingroup qml-QtLocation5-places
\ingroup qml-QtLocation5-places-models
\since Qt Location 5.0
\brief Provides access to reviews of a \l Place.
The ReviewModel is a read-only model used to fetch reviews about a \l Place. The model
incrementally fetches. The number of reviews which are fetched at a time is specified
by the \l batchSize property. The total number of reviews available can be accessed via the
\l totalCount property.
To use the ReviewModel we need a view and a delegate. In this snippet we
see the setting up of a ListView with a ReviewModel model and a delegate.
\snippet declarative/places/content/places/PlaceReviews.qml ReviewModel delegate
The model returns data for the following roles:
\table
\header
\li Role
\li Type
\li Description
\row
\li dateTime
\li datetime
\li The date and time that the review was posted.
\row
\li text
\li string
\li The review's textual description of the place. It can be either rich (HTML based) text or plain text
depending on the provider.
\row
\li language
\li string
\li The language that the review is written in.
\row
\li rating
\li real
\li The rating that the reviewer gave to the place.
\row
\li reviewId
\li string
\li The identifier of the review.
\row
\li title
\li string
\li The title of the review.
\row
\li supplier
\li \l Supplier
\li The supplier of the review.
\row
\li user
\li \l {QtLocation5::User}{User}
\li The user who contributed the review.
\row
\li attribution
\li string
\li Attribution text which must be displayed when displaying the review.
\endtable
*/
/*!
\qmlproperty Place QtLocation5::ReviewModel::place
This property holds the Place that the reviews are for.
*/
/*!
\qmlproperty int QtLocation5::ReviewModel::batchSize
This property holds the batch size to use when fetching more reviews.
*/
/*!
\qmlproperty int QtLocation5::ReviewModel::totalCount
This property holds the total number of reviews for the place.
*/
QDeclarativeReviewModel::QDeclarativeReviewModel(QObject *parent)
: QDeclarativePlaceContentModel(QPlaceContent::ReviewType, parent)
{
}
QDeclarativeReviewModel::~QDeclarativeReviewModel()
{
qDeleteAll(m_suppliers);
}
/*!
\internal
*/
QVariant QDeclarativeReviewModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
return QVariant();
if (index.row() >= rowCount(index.parent()) || index.row() < 0)
return QVariant();
const QPlaceReview &review = m_content.value(index.row());
switch (role) {
case DateTimeRole:
return review.dateTime();
case TextRole:
return review.text();
case LanguageRole:
return review.language();
case RatingRole:
return review.rating();
case ReviewIdRole:
return review.reviewId();
case TitleRole:
return review.title();
}
return QDeclarativePlaceContentModel::data(index, role);
}
QHash<int, QByteArray> QDeclarativeReviewModel::roleNames() const
{
QHash<int, QByteArray> roles = QDeclarativePlaceContentModel::roleNames();
roles.insert(DateTimeRole, "dateTime");
roles.insert(TextRole, "text");
roles.insert(LanguageRole, "language");
roles.insert(RatingRole, "rating");
roles.insert(ReviewIdRole, "reviewId");
roles.insert(TitleRole, "title");
return roles;
}
QT_END_NAMESPACE
|
