Imported existing sources

2018-09-01 15:14:05 +02:00
parent c9cb79bb4b
commit acaa6372d7
12 changed files with 389 additions and 36 deletions
@@ -0,0 +1,149 @@
+#pragma once
+
+#include <algorithm>
+
+#include <QString>
+#include <QDateTime>
+#include <QMap>
+#include <QVariant>
+#include <QDebug>
+
+class DbMsgFieldBase
+{
+public:
+    DbMsgFieldBase() : m_touched(false) {}
+
+    bool touched() const { return m_touched; }
+    void setTouched(bool touched) { m_touched = touched; }
+
+    virtual QVariant getVariant() const = 0;
+
+private:
+    bool m_touched;
+};
+
+template<typename T>
+class DbMsgField : public DbMsgFieldBase
+{
+public:
+    DbMsgField() : DbMsgFieldBase(), m_hasValue(false) {}
+    DbMsgField(const T &value) : DbMsgFieldBase(), m_value(value), m_hasValue(true) {}
+
+    T &getValue() { return m_value; }
+    const T &getValue() const { return m_value; }
+    void setValue(const T &value) { m_hasValue = true; m_value = value; setTouched(true); }
+
+    bool hasValue() const { return m_hasValue; }
+
+    QVariant getVariant() const { return getValue(); }
+
+private:
+    T m_value;
+    bool m_hasValue;
+};
+
+class DbMsgBase
+{
+public:
+    DbMsgBase() {}
+
+    bool touched() const
+    {
+        const auto fields = getFields();
+        return std::any_of(fields.cbegin(), fields.cend(), [](const DbMsgFieldBase *field) { return field->touched(); });
+    }
+
+    void setTouched(bool touched)
+    {
+        for(DbMsgFieldBase *field : getFields())
+            field->setTouched(touched);
+    }
+
+    void debug() const
+    {
+        const auto fields = getFields();
+        for(auto iter = fields.cbegin(); iter != fields.cend(); iter++)
+            qDebug() << iter.key() << iter.value()->getVariant() << iter.value()->touched();
+    }
+
+protected:
+    virtual QMap<QString, DbMsgFieldBase*> getFields() = 0;
+    virtual QMap<QString, const DbMsgFieldBase*> getFields() const = 0;
+};
+
+class MyMessage : public DbMsgBase
+{
+public:
+    MyMessage() : DbMsgBase() {}
+
+    MyMessage(const QString &name, const QDate &birthday, const QDateTime &sendTimestamp, int age, double weight) :
+        DbMsgBase(),
+        m_name(name), m_birthday(birthday), m_sendTimestamp(sendTimestamp), m_age(age), m_weight(weight)
+    {}
+
+    QString getName() const { return m_name.getValue(); }
+    void setName(const QString &name) { m_name.setValue(name); }
+    DbMsgField<QString> &nameField() { return m_name; }
+    const DbMsgField<QString> &nameField() const { return m_name; }
+    DbMsgFieldBase &nameFieldBase() { return m_name; }
+    const DbMsgFieldBase &nameFieldBase() const { return m_name; }
+
+    QDate getBirthday() const { return m_birthday.getValue(); }
+    void setBirthday(const QDate &birthday) { m_birthday.setValue(birthday); }
+    DbMsgField<QDate> &birthdayField() { return m_birthday; }
+    const DbMsgField<QDate> &birthdayField() const { return m_birthday; }
+    DbMsgFieldBase &birthdayFieldBase() { return m_birthday; }
+    const DbMsgFieldBase &birthdayFieldBase() const { return m_birthday; }
+
+    QDateTime getSendTimestamp() const { return m_sendTimestamp.getValue(); }
+    void setSendTimestamp(const QDateTime &sendTimestamp) { m_sendTimestamp.setValue(sendTimestamp); }
+    DbMsgField<QDateTime> &sendTimestampField() { return m_sendTimestamp; }
+    const DbMsgField<QDateTime> &sendTimestampField() const { return m_sendTimestamp; }
+    DbMsgFieldBase &sendTimestampFieldBase() { return m_sendTimestamp; }
+    const DbMsgFieldBase &sendTimestampFieldBase() const { return m_sendTimestamp; }
+
+    int getAge() const { return m_age.getValue(); }
+    void setAge(const int &age) { m_age.setValue(age); }
+    DbMsgField<int> &ageField() { return m_age; }
+    const DbMsgField<int> &ageField() const { return m_age; }
+    DbMsgFieldBase &ageFieldBase() { return m_age; }
+    const DbMsgFieldBase &ageFieldBase() const { return m_age; }
+
+    double getWeight() const { return m_weight.getValue(); }
+    void setWeight(const double &weight) { m_weight.setValue(weight); }
+    DbMsgField<double> &weightField() { return m_weight; }
+    const DbMsgField<double> &weightField() const { return m_weight; }
+    DbMsgFieldBase &weightFieldBase() { return m_weight; }
+    const DbMsgFieldBase &weightFieldBase() const { return m_weight; }
+
+protected:
+    QMap<QString, DbMsgFieldBase*> getFields() override
+    {
+        QMap<QString, DbMsgFieldBase*> fields;
+
+        for(auto iter = m_fields.cbegin(); iter != m_fields.cend(); iter++)
+            fields.insert(iter.key(), &(this->*iter.value())());
+
+        return fields;
+    }
+
+    QMap<QString, const DbMsgFieldBase*> getFields() const override
+    {
+        QMap<QString, const DbMsgFieldBase*> fields;
+
+        for(auto iter = m_fields.cbegin(); iter != m_fields.cend(); iter++)
+            fields.insert(iter.key(), &(const_cast<MyMessage*>(this)->*iter.value())());
+
+        return fields;
+    }
+
+private:
+    typedef DbMsgFieldBase &(MyMessage::*FieldGetterMethod)();
+    static const QMap<QString, FieldGetterMethod> m_fields;
+
+    DbMsgField<QString> m_name;
+    DbMsgField<QDate> m_birthday;
+    DbMsgField<QDateTime> m_sendTimestamp;
+    DbMsgField<int> m_age;
+    DbMsgField<double> m_weight;
+};