validatorinteger.cpp

/*
 * Copyright (C) 2017-2018 Matthias Fehring <kontakt@buschmann23.de>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include "validatorinteger_p.h"

using namespace Cutelyst;

ValidatorInteger::ValidatorInteger(const QString &field, QMetaType::Type type, const Cutelyst::ValidatorMessages &messages, const QString &defValKey) :
    ValidatorRule(*new ValidatorIntegerPrivate(field, type, messages, defValKey))
{
}

ValidatorInteger::~ValidatorInteger()
{
}

ValidatorReturnType ValidatorInteger::validate(Cutelyst::Context *c, const ParamsMultiMap &params) const
{
    ValidatorReturnType result;

    const QString v = value(params);

    if (!v.isEmpty()) {
        Q_D(const ValidatorInteger);
        QVariant converted;

        switch(d->type) {
        case QMetaType::Char:
        case QMetaType::Short:
        case QMetaType::Int:
        case QMetaType::Long:
        case QMetaType::LongLong:
        case QMetaType::UChar:
        case QMetaType::UShort:
        case QMetaType::UInt:
        case QMetaType::ULong:
        case QMetaType::ULongLong:
            converted = d->valueToNumber(c, v, d->type);
            break;
        default:
            result.errorMessage = validationDataError(c);
            qCWarning(C_VALIDATOR, "ValidatorInteger: Conversion type for field %s at %s::%s is not an integer type.", qPrintable(field()), qPrintable(c->controllerName()), qPrintable(c->actionName()));
            break;
        }

        if (converted.isValid()) {
            result.value = converted;
        } else {
            qCDebug(C_VALIDATOR, "ValidatorInteger: Validation failed for field %s at %s::%s: not an integer value.", qPrintable(field()), qPrintable(c->controllerName()), qPrintable(c->actionName()));
            result.errorMessage = validationError(c);
        }
    } else {
        defaultValue(c, &result, "ValidatorInteger");
    }

    return result;
}

QString ValidatorInteger::genericValidationError(Context *c, const QVariant &errorData) const
{
    QString error;
    Q_UNUSED(errorData)
    Q_D(const ValidatorInteger);
    const QString _label = label(c);
    QString min;
    QString max;
    switch (d->type) {
    case QMetaType::Char:
        min = c->locale().toString(std::numeric_limits<char>::min());
        max = c->locale().toString(std::numeric_limits<char>::max());
        break;
    case QMetaType::Short:
        min = c->locale().toString(std::numeric_limits<short>::min());
        max = c->locale().toString(std::numeric_limits<short>::max());
        break;
    case QMetaType::Int:
        min = c->locale().toString(std::numeric_limits<int>::min());
        max = c->locale().toString(std::numeric_limits<int>::max());
        break;
    case QMetaType::Long:
        min = c->locale().toString(static_cast<qlonglong>(std::numeric_limits<long>::min()));
        max = c->locale().toString(static_cast<qlonglong>(std::numeric_limits<long>::max()));
        break;
    case QMetaType::LongLong:
        min = c->locale().toString(std::numeric_limits<qlonglong>::min());
        max = c->locale().toString(std::numeric_limits<qlonglong>::max());
        break;
    case QMetaType::UChar:
        min = c->locale().toString(std::numeric_limits<uchar>::min());
        max = c->locale().toString(std::numeric_limits<uchar>::max());
        break;
    case QMetaType::UShort:
        min = c->locale().toString(std::numeric_limits<ushort>::min());
        max = c->locale().toString(std::numeric_limits<ushort>::max());
        break;
    case QMetaType::UInt:
        min = c->locale().toString(std::numeric_limits<uint>::min());
        max = c->locale().toString(std::numeric_limits<uint>::max());
        break;
    case QMetaType::ULong:
        min = c->locale().toString(static_cast<qulonglong>(std::numeric_limits<ulong>::min()));
        max = c->locale().toString(static_cast<qulonglong>(std::numeric_limits<ulong>::max()));
        break;
    case QMetaType::ULongLong:
    default:
        min = c->locale().toString(std::numeric_limits<qulonglong>::min());
        max = c->locale().toString(std::numeric_limits<qulonglong>::max());
        break;
    }
    if (_label.isEmpty()) {
        //: %1 is the minimum numerical limit for the selected type, %2 is the maximum numeric limit
        error = c->translate("Cutelyst::ValidatorInteger", "Not a valid integer value between %1 and %2.").arg(min, max);
    } else {
        //: %1 will be replaced by the field name, %2 is the minimum numerical limit for the selected type, %3 is the maximum numeric limit
        error = c->translate("Cutelyst::ValidatorInteger", "The value in the “%1“ field is not a valid integer between %2 and %3.").arg(_label, min, max);
    }
    return error;
}