addressbookmodel.cpp Example File

cloudaddressbook/addressbookmodel.cpp
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#include <QtCore/qhash.h>
#include <QtCore/qbytearray.h>
#include <QtCore/qjsondocument.h>
#include <QtCore/qjsonvalue.h>
#include <QtCore/qjsonobject.h>
#include <QtCore/qjsonarray.h>

#include <QtGui/qfont.h>

#include "addressbookmodel.h"

AddressBookModel::AddressBookModel(QObject *parent)
    : EnginioModel(parent)
    , _searchReply()
{}

AddressBookModel::~AddressBookModel()
{}

QVariant AddressBookModel::data(const QModelIndex &index, int role) const
{
    if (role == Qt::DisplayRole) {
        // we assume here that column order is constant and it is the same as in AddressBookModel::Roles
        return EnginioModel::data(index, FirstNameRole + index.column()).value<QJsonValue>().toString();
    }
    if (role == Qt::FontRole) {
        // this role is used to mark items found in the full text search.
        QFont font;
        QString id = EnginioModel::data(index, Enginio::IdRole).value<QString>();
        font.setBold(_markedItems.contains(id));
        return font;
    }

    return EnginioModel::data(index, role);
}

bool AddressBookModel::setData(const QModelIndex &index, const QVariant &value, int role)
{
    bool result = role == Qt::EditRole
            ? EnginioModel::setData(this->index(index.row()), value, FirstNameRole + index.column())
            : EnginioModel::setData(this->index(index.row()), value, role);

    // if the data was edited, the marked items set may not be valid anymore
    // so we need to clear it.
    if (result)
        _markedItems.clear();
    return result;
}

int AddressBookModel::columnCount(const QModelIndex &parent) const
{
    return parent.isValid() ? 0 : 5;
}

QVariant AddressBookModel::headerData(int section, Qt::Orientation orientation, int role) const
{
    if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
        switch (section) {
        case 0: return QStringLiteral("First name");
        case 1: return QStringLiteral("Last name");
        case 2: return QStringLiteral("Email");
        case 3: return QStringLiteral("Phone number");
        case 4: return QStringLiteral("Address");
        }
        return QVariant();
    }
    return EnginioModel::headerData(section, orientation, role);
}

QHash<int, QByteArray> AddressBookModel::roleNames() const
{
    QHash<int, QByteArray> roles = EnginioModel::roleNames();
    roles.insert(FirstNameRole, "firstName");
    roles.insert(LastNameRole, "lastName");
    roles.insert(EmailRole, "email");
    roles.insert(PhoneRole, "phone");
    roles.insert(AddressRole, "address");
    return roles;
}

void AddressBookModel::newSearch(const QString &search)
{
    if (search.isEmpty())
        return;

    // construct JSON object:
    //    {
    //        "objectTypes": ["objects.addressbook"],
    //        "search": { "phrase": "*PHRASE*",
    //            "properties": ["firstName", "lastName", "email", "phone", "address"]
    //        }
    //    }

    QJsonObject query;
    {
        QJsonArray objectTypes;
        objectTypes.append(QString::fromUtf8("objects.addressbook"));

        QJsonArray properties;
        properties.append(QString::fromUtf8("firstName"));
        properties.append(QString::fromUtf8("lastName"));
        properties.append(QString::fromUtf8("email"));
        properties.append(QString::fromUtf8("phone"));
        properties.append(QString::fromUtf8("address"));

        QJsonObject searchQuery;
        searchQuery.insert("phrase", "*" + search + "*");
        searchQuery.insert("properties", properties);

        query.insert("objectTypes", objectTypes);
        query.insert("search", searchQuery);
    }

    if (_searchReply) {
        // a new search is created before the old one was finished
        // we will not be interested in the results of the old search.
        _searchReply->disconnect(this);
    }

    _searchReply =  client()->fullTextSearch(query);
    QObject::connect(_searchReply, &EnginioReply::finished, this, &AddressBookModel::searchResultsArrived);
    QObject::connect(_searchReply, &EnginioReply::finished, _searchReply, &EnginioReply::deleteLater);
}

void AddressBookModel::searchResultsArrived()
{
    // clear old marks.
    _markedItems.clear();

    // update marked ids.
    QJsonArray results = _searchReply->data()["results"].toArray();
    foreach (const QJsonValue &value, results) {
        QJsonObject person = value.toObject();
        _markedItems.insert(person["id"].toString());
    }

    QVector<int> roles;
    roles.append(Qt::FontRole);
    // We do not keep id -> row mapping, therefore it is easier to emit
    // data change signal for all items, even if it is not optimal from
    // the performance point of view.
    emit dataChanged(index(0), index(rowCount() - 1, columnCount() - 1) , roles);

    _searchReply = 0;
    emit searchFinished();
}

© 2016 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.