minor changes and some TODO comments

src/query.h

@@ -78,9 +78,9 @@ public:
     template <typename F>
     QList<F> select(const FieldPhrase<F> f);
     int count();
-    QVariant max(FieldPhrase<int> &f);
-    QVariant min(FieldPhrase<int> &f);
-    QVariant average(FieldPhrase<int> &f);
+    QVariant max(const FieldPhrase<int> &f);
+    QVariant min(const FieldPhrase<int> &f);
+    QVariant average(const FieldPhrase<int> &f);
 
     //data mailpulation
     int update(WherePhrase phrase);
@@ -343,7 +343,7 @@ Q_OUTOFLINE_TEMPLATE int Query<T>::count()
 }
 
 template <class T>
-Q_OUTOFLINE_TEMPLATE QVariant Query<T>::max(FieldPhrase<int> &f)
+Q_OUTOFLINE_TEMPLATE QVariant Query<T>::max(const FieldPhrase<int> &f)
 {
     Q_D(Query);
 
@@ -360,7 +360,7 @@ Q_OUTOFLINE_TEMPLATE QVariant Query<T>::max(FieldPhrase<int> &f)
 }
 
 template <class T>
-Q_OUTOFLINE_TEMPLATE QVariant Query<T>::min(FieldPhrase<int> &f)
+Q_OUTOFLINE_TEMPLATE QVariant Query<T>::min(const FieldPhrase<int> &f)
 {
     Q_D(Query);
 
@@ -377,7 +377,7 @@ Q_OUTOFLINE_TEMPLATE QVariant Query<T>::min(FieldPhrase<int> &f)
 }
 
 template <class T>
-Q_OUTOFLINE_TEMPLATE QVariant Query<T>::average(FieldPhrase<int> &f)
+Q_OUTOFLINE_TEMPLATE QVariant Query<T>::average(const FieldPhrase<int> &f)
 {
     Q_D(Query);
 

src/table.cpp

@@ -27,6 +27,18 @@
 
 NUT_BEGIN_NAMESPACE
 
+/*
+ * FIXME:
+ *  Qt can not access metaObject inside of constructor
+ *  so, if we can't initalize myModel inside of ctor. in
+ *  other side myModel inited in propertyChanged signal, so
+ *  any method that uses myModel (like: primaryKey, ...) can't
+ *  be accessed before any property set. So ugly, but there are
+ *  no other way for now.
+ *
+ *  This should be fixed to v1.2
+ */
+
 Table::Table(QObject *parent) : QObject(parent)
 {
     setStatus(NewCreated);
@@ -40,38 +52,12 @@ void Table::add(TableSetBase *t)
 
 QString Table::primaryKey() const
 {
-//    static QString ret = QString::null;
-
-//    if(ret == QString::null){
-//        for(int i = 0; i < metaObject()->classInfoCount(); i++){
-//            QMetaClassInfo ci = metaObject()->classInfo(i);
-//            QString ciName = ci.name();
-
-//            if(ciName.startsWith(__nut_NAME_PERFIX))
-//                ciName.remove(__nut_NAME_PERFIX);
-
-//            if(ciName.contains(" ")){
-//                QStringList parts = ciName.split(" ");
-//                QString propName = parts.at(1);
-//                if(propName == __nut_PRIMARY_KEY)
-//                    ret = parts.at(0);
-//            }
-//        }
-
-//        if(ret == QString::null)
-//            ret = "";
-//    }
-
-//    return ret;
-    return TableModel::findByClassName(metaObject()->className())->primaryKey();
+    return myModel->primaryKey();
 }
 
 bool Table::isPrimaryKeyAutoIncrement() const
 {
-    auto m = TableModel::findByClassName(metaObject()->className());
-    auto pk = m->primaryKey();
-    auto f = m->field(pk);
-    return f->isAutoIncrement;
+    return myModel->field(myModel->primaryKey())->isAutoIncrement;
 }
 
 
@@ -82,14 +68,17 @@ QVariant Table::primaryValue() const
 
 void Table::propertyChanged(QString propName)
 {
-    if(propName == primaryKey())
+    if (!myModel)
+         myModel = TableModel::findByClassName(metaObject()->className());
+
+    if (propName == primaryKey())
         return;
 
     _changedProperties.insert(propName);
-    if(_status == FeatchedFromDB)
+    if (_status == FeatchedFromDB)
         _status = Modified;
 
-    if(_status == NewCreated)
+    if (_status == NewCreated)
         _status = Added;
 }
 
@@ -106,12 +95,12 @@ QSet<QString> Table::changedProperties() const
 bool Table::setParentTable(Table *master)
 {
     QString masterClassName = master->metaObject()->className();
-    TableModel *myModel = TableModel::findByClassName(metaObject()->className());
 
     foreach (RelationModel *r, myModel->foregionKeys())
         if(r->masterClassName == masterClassName)
         {
-            setProperty(QString(r->localColumn).toLatin1().data(), master->primaryValue());
+            setProperty(QString(r->localColumn).toLatin1().data(),
+                        master->primaryValue());
             _changedProperties.insert(r->localColumn);
             return true;
         }

src/table.h

@@ -33,6 +33,7 @@ NUT_BEGIN_NAMESPACE
 
 class Database;
 class TableSetBase;
+class TableModel;
 class NUT_EXPORT Table : public QObject
 {
     Q_OBJECT
@@ -72,6 +73,7 @@ protected:
     void propertyChanged(QString propName);
 
 private:
+    TableModel *myModel;
     Status _status;
     QSet<QString> _changedProperties;
     //TODO: is this removable?

src/tablemodel.cpp

@@ -30,8 +30,11 @@
 
 NUT_BEGIN_NAMESPACE
 
+/*
+ * TODO: It may be good idea if we replace this QSet with two QHash!
+ * one for className search and another for typeId.
+ */
 QSet<TableModel*> TableModel::_allModels;
-//QMap<int, TableScheema*> TableScheema::scheemas;
 
 QString TableModel::name() const
 {
@@ -95,6 +98,9 @@ QSet<TableModel *> TableModel::allModels()
     return _allModels;
 }
 
+/*
+ * This is not used anywhere
+ */
 TableModel *TableModel::findByTypeId(int typeId)
 {
     foreach (TableModel *model, _allModels)
@@ -103,20 +109,18 @@ TableModel *TableModel::findByTypeId(int typeId)
     return 0;
 }
 
-//TableModel *TableModel::findByName(QString name)
-//{
-//    foreach (TableModel *model, _allModels)
-//        if(model->name() == name)
-//            return model;
-//    return 0;
-//}
-
+/**
+ * @brief TableModel::findByClassName
+ *  Find a table model by class name
+ * @param className
+ * @return
+ */
 TableModel *TableModel::findByClassName(QString className)
 {
-    foreach (TableModel *model, _allModels){
+    foreach (TableModel *model, _allModels)
         if(model->className() == className)
             return model;
-    }
+
     return 0;
 }
 
@@ -338,37 +342,6 @@ QJsonObject TableModel::toJson() const
     return obj;
 }
 
-//TableScheema *TableScheema::registerTable(int typeId, QString tableName)
-//{
-//    TableScheema *scheema = new TableScheema(typeId, tableName);
-//    scheemas.insert(typeId, scheema);
-//    return scheema;
-//}
-
-//void TableScheema::createForegionKeys()
-//{
-//    foreach (TableScheema *sch, scheemas) {
-//        foreach (ForegionKey *fk, sch->_foregionKeys) {
-//            fk->table = scheema(fk->tableName);
-//        }
-//    }
-//}
-
-//TableModel *TableModel::model(QString className)
-//{
-//    qFatal("");
-//#ifdef NUT_NAMESPACE
-//    if(className.startsWith(QT_STRINGIFY(NUT_NAMESPACE) "::"))
-//        className = className.replace(QT_STRINGIFY(NUT_NAMESPACE) "::", "");
-//#endif
-
-//    foreach (TableModel *s, _allModels)
-//        if(s->_className == className){
-//            return s;
-//        }
-//    return 0;
-//}
-
 RelationModel *TableModel::foregionKey(QString otherTable) const
 {
     foreach (RelationModel *fk, _foregionKeys)

test/basic/maintest.cpp

@@ -14,6 +14,7 @@
 #include "user.h"
 #include "post.h"
 #include "comment.h"
+#include "score.h"
 
 #define PRINT(x) qDebug() << #x "=" << x;
 #define TIC()  QElapsedTimer timer; timer.start()
@@ -29,6 +30,7 @@ void MainTest::initTestCase()
 {
     qDebug() << "User type id:" << qRegisterMetaType<User*>();
     qDebug() << "Post type id:" << qRegisterMetaType<Post*>();
+    qDebug() << "Score type id:" << qRegisterMetaType<Score*>();
     qDebug() << "Comment type id:" << qRegisterMetaType<Comment*>();
     qDebug() << "DB type id:" << qRegisterMetaType<WeblogDatabase*>();
 
@@ -80,6 +82,12 @@ void MainTest::createPost()
         comment->setAuthorId(user->id());
         newPost->comments()->append(comment);
     }
+    for (int i = 0; i < 10; ++i) {
+        Score *score = new Score;
+        score->setScore(i % 5);
+        newPost->scores()->append(score);
+    }
+
     db.saveChanges();
 
     postId = newPost->id();
@@ -99,7 +107,7 @@ void MainTest::createPost2()
 
     for(int i = 0 ; i < 3; i++){
         Comment *comment = new Comment;
-        comment->setMessage("comment #" + QString::number(i));
+        comment->setMessage("comment #" + QString::number(i + 2));
         comment->setSaveDate(QDateTime::currentDateTime());
         comment->setAuthor(user);
         comment->setPostId(newPost->id());
@@ -134,6 +142,15 @@ void MainTest::selectPosts()
     db.cleanUp();
 }
 
+void MainTest::selectScoreAverage()
+{
+    auto a = db.scores()->query()
+            ->join<Post>()
+            ->setWhere(Post::idField() == 1)
+            ->average(Score::scoreField());
+    qDebug() << a;
+}
+
 void MainTest::selectFirst()
 {
     auto posts = db.posts()->query()

test/basic/maintest.h

@@ -29,6 +29,7 @@ private slots:
     void createPost2();
     void join();
     void selectPosts();
+    void selectScoreAverage();
     void selectFirst();
     void selectPostsWithoutTitle();
     void selectPostIds();

test/common/post.cpp

@@ -12,3 +12,4 @@ Post::Post(QObject *parent) : Table(parent),
 }
 
 NUT_IMPLEMENT_CHILD_TABLE(Post, Comment, comments)
+NUT_IMPLEMENT_CHILD_TABLE(Post, Score, scores)