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QxValidatorFct.h
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    00001 /****************************************************************************
    00002 **
    00003 ** http://www.qxorm.com/
    00004 ** http://sourceforge.net/projects/qxorm/
    00005 ** Original file by Lionel Marty
    00006 **
    00007 ** This file is part of the QxOrm library
    00008 **
    00009 ** This software is provided 'as-is', without any express or implied
    00010 ** warranty. In no event will the authors be held liable for any
    00011 ** damages arising from the use of this software.
    00012 **
    00013 ** GNU Lesser General Public License Usage
    00014 ** This file must be used under the terms of the GNU Lesser
    00015 ** General Public License version 2.1 as published by the Free Software
    00016 ** Foundation and appearing in the file 'license.lgpl.txt' included in the
    00017 ** packaging of this file.  Please review the following information to
    00018 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00019 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00020 **
    00021 ** If you have questions regarding the use of this file, please contact :
    00022 ** contact@qxorm.com
    00023 **
    00024 ****************************************************************************/
    00025
    00026 #ifndef _QX_VALIDATOR_FUNCTION_H_
    00027 #define _QX_VALIDATOR_FUNCTION_H_
    00028
    00029 #ifdef _MSC_VER
    00030 #pragma once
    00031 #endif
    00032
    00040 #include <boost/static_assert.hpp>
    00041 #include <boost/mpl/if.hpp>
    00042 #include <boost/mpl/logical.hpp>
    00043 #include <boost/type_traits/is_pointer.hpp>
    00044
    00045 #include <QxValidator/IxValidatorX.h>
    00046 #include <QxValidator/QxInvalidValueX.h>
    00047
    00048 #include <QxRegister/QxClass.h>
    00049
    00050 #include <QxTraits/is_container.h>
    00051 #include <QxTraits/is_smart_ptr.h>
    00052 #include <QxTraits/is_qx_registered.h>
    00053
    00054 namespace qx {
    00055 template <class T>
    00056 QxInvalidValueX validate(T & t, const QString & group);
    00057 } // namespace qx
    00058
    00059 namespace qx {
    00060 namespace validator {
    00061 namespace detail {
    00062
    00063 template <class T>
    00064 struct QxValidator_Helper_Generic
    00065 {
    00066
    00067    static inline qx::QxInvalidValueX validate(T & t, const QString & group)
    00068    {
    00069       BOOST_STATIC_ASSERT(qx::trait::is_qx_registered<T>::value);
    00070
    00071       qx::QxInvalidValueX invalidValues;
    00072       qx::IxClass * pClass = qx::QxClass<T>::getSingleton();
    00073       if (! pClass) { qAssert(false); return invalidValues; }
    00074       qx::IxValidatorX * pAllValidator = pClass->getAllValidator();
    00075       if (! pAllValidator) { return invalidValues; }
    00076       invalidValues.setCurrentPath(pClass->getName());
    00077       invalidValues.insert(pAllValidator->validate((& t), group));
    00078       return invalidValues;
    00079    }
    00080
    00081 };
    00082
    00083 template <class T>
    00084 struct QxValidator_Helper_Container
    00085 {
    00086
    00087    static inline qx::QxInvalidValueX validate(T & t, const QString & group)
    00088    {
    00089       qx::QxInvalidValueX invalidValues; long lIndex = 0;
    00090       for (typename T::iterator it = t.begin(); it != t.end(); ++it)
    00091       {
    00092          invalidValues.setCurrentPath("[" + QString::number(lIndex) + "]");
    00093          invalidValues.insert(validateItem((* it), group));
    00094          lIndex++;
    00095       }
    00096       return invalidValues;
    00097    }
    00098
    00099 private:
    00100
    00101    template <typename U>
    00102    static inline qx::QxInvalidValueX validateItem(U & item, const QString & group)
    00103    { return validateItem_Helper<U, boost::is_pointer<U>::value || qx::trait::is_smart_ptr<U>::value>::validate(item, group); }
    00104
    00105    template <typename U, bool bIsPointer /* = true */>
    00106    struct validateItem_Helper
    00107    {
    00108       static inline qx::QxInvalidValueX validate(U & item, const QString & group)
    00109       { return (item ? qx::validator::detail::QxValidator_Helper_Container<T>::validateItem((* item), group) : qx::QxInvalidValueX()); }
    00110    };
    00111
    00112    template <typename U1, typename U2>
    00113    struct validateItem_Helper<std::pair<U1, U2>, false>
    00114    {
    00115       static inline qx::QxInvalidValueX validate(std::pair<U1, U2> & item, const QString & group)
    00116       { return qx::validator::detail::QxValidator_Helper_Container<T>::validateItem(item.second, group); }
    00117    };
    00118
    00119    template <typename U1, typename U2>
    00120    struct validateItem_Helper<const std::pair<U1, U2>, false>
    00121    {
    00122       static inline qx::QxInvalidValueX validate(const std::pair<U1, U2> & item, const QString & group)
    00123       { return qx::validator::detail::QxValidator_Helper_Container<T>::validateItem(item.second, group); }
    00124    };
    00125
    00126    template <typename U1, typename U2>
    00127    struct validateItem_Helper<QPair<U1, U2>, false>
    00128    {
    00129       static inline qx::QxInvalidValueX validate(QPair<U1, U2> & item, const QString & group)
    00130       { return qx::validator::detail::QxValidator_Helper_Container<T>::validateItem(item.second, group); }
    00131    };
    00132
    00133    template <typename U1, typename U2>
    00134    struct validateItem_Helper<const QPair<U1, U2>, false>
    00135    {
    00136       static inline qx::QxInvalidValueX validate(const QPair<U1, U2> & item, const QString & group)
    00137       { return qx::validator::detail::QxValidator_Helper_Container<T>::validateItem(item.second, group); }
    00138    };
    00139
    00140    template <typename U>
    00141    struct validateItem_Helper<U, false>
    00142    { static qx::QxInvalidValueX validate(U & item, const QString & group) { return qx::validate(item, group); } };
    00143
    00144 };
    00145
    00146 template <class T>
    00147 struct QxValidator_Helper_Ptr
    00148 {
    00149
    00150    static inline qx::QxInvalidValueX validate(T & t, const QString & group)
    00151    { return (t ? qx::validate((* t), group) : qx::QxInvalidValueX()); }
    00152
    00153 };
    00154
    00155 template <class T>
    00156 struct QxValidator_Helper
    00157 {
    00158
    00159    static inline qx::QxInvalidValueX validate(T & t, const QString & group)
    00160    {
    00161       typedef typename boost::mpl::if_c< boost::is_pointer<T>::value, qx::validator::detail::QxValidator_Helper_Ptr<T>, qx::validator::detail::QxValidator_Helper_Generic<T> >::type type_validator_1;
    00162       typedef typename boost::mpl::if_c< qx::trait::is_smart_ptr<T>::value, qx::validator::detail::QxValidator_Helper_Ptr<T>, type_validator_1 >::type type_validator_2;
    00163       typedef typename boost::mpl::if_c< qx::trait::is_container<T>::value, qx::validator::detail::QxValidator_Helper_Container<T>, type_validator_2 >::type type_validator_3;
    00164
    00165       return type_validator_3::validate(t, group);
    00166    }
    00167
    00168 };
    00169
    00170 } // namespace detail
    00171 } // namespace validator
    00172 } // namespace qx
    00173
    00174 namespace qx {
    00175
    00176 template <class T>
    00177 QxInvalidValueX validate(T & t, const QString & group)
    00178 { return qx::validator::detail::QxValidator_Helper<T>::validate(t, group); }
    00179
    00180 template <class T>
    00181 QxInvalidValueX validate(T & t)
    00182 { return qx::validator::detail::QxValidator_Helper<T>::validate(t, ""); }
    00183
    00184 template <class T>
    00185 QxInvalidValueX validate(T & t, const QStringList & groups)
    00186 {
    00187    QxInvalidValueX invalidValues;
    00188    for (long l = 0; l < groups.count(); l++)
    00189    { invalidValues.insert(qx::validate(t, groups.at(l))); }
    00190    return invalidValues;
    00191 }
    00192
    00193 } // namespace qx
    00194
    00195 #endif // _QX_VALIDATOR_FUNCTION_H_