User Model for database access

src/models/User.cpp

@@ -0,0 +1,50 @@
+//
+// Created by Krad on 2021/11/11.
+//
+
+#include "User.h"
+#include "db/SQLHelper.h"
+#include <QMetaProperty>
+#include <qdebug.h>
+User* User::currentUser = nullptr;
+
+User::User(QObject *parent) : QObject(parent) {
+
+}
+
+User::~User() {
+
+}
+
+bool User::submitChange() {
+    static QString updateSQL = "update Account %1 %2";
+    QString setString = "";
+    #define USER_READONLY_PROPERTY(name)
+    #define USER_PROPERTY(name)\
+    USER_READONLY_PROPERTY(name)\
+    setString += QString((!setString.isEmpty()&&mf_##name)?", ":"") + QString(mf_##name?QString("set %1='%2'").arg(#name, m_##name):"");
+    USER_PROPERTIES_MACRO()
+    #undef USER_PROPERTY
+    #undef USER_READONLY_PROPERTY
+    QString whereString = " where "+getIndexName()+" = '"+getIndexValue()+"'";
+    return 1 == SQLHelper::ExecuteNoQuery(updateSQL.arg(setString,whereString));
+}
+
+bool User::QueryUser(QString userID, QString Pwd) {
+    QString sql = QString("select * from Account where UserCode='%1' and Password='%2'")
+            .arg(userID).arg(Pwd);
+    QMap<QString,QVariant> map;
+    SQLHelper::Query(sql, map);
+    if(!map.isEmpty())
+    {
+        if (!currentUser) currentUser = new User;
+        #define USER_READONLY_PROPERTY(name) currentUser->m_##name = map[#name].toString();
+        #define USER_PROPERTY(name)\
+        USER_READONLY_PROPERTY(name)
+        USER_PROPERTIES_MACRO()
+        #undef USER_PROPERTY
+        #undef USER_READONLY_PROPERTY
+        return true;
+    }
+    return false;
+}

src/models/User.h

@@ -0,0 +1,66 @@
+//
+// Created by Krad on 2021/11/11.
+//
+
+#ifndef GUI_USER_H
+#define GUI_USER_H
+
+#define USER_PROPERTIES_MACRO()\
+USER_READONLY_PROPERTY(UserID)\
+USER_READONLY_PROPERTY(UserCode)\
+USER_PROPERTY(UserName)\
+USER_PROPERTY(Password)\
+USER_PROPERTY(RoleID)\
+USER_PROPERTY(Comment)
+
+
+#include <QObject>
+class User:public QObject {
+    Q_OBJECT
+public:
+    static bool QueryUser(QString userID, QString Pwd);
+    static User* Current(){
+        return currentUser;
+    }
+    explicit User(QObject *parent=nullptr);
+    ~User();
+    QString getIndexName(){
+        return "UserID";
+    }
+    QString getIndexValue(){
+        return m_UserID;
+    }
+    // add properties setter and getter
+    #define USER_READONLY_PROPERTY(name)\
+    QString get##name(){\
+        return m_##name;\
+    }
+    #define USER_PROPERTY(name)\
+    USER_READONLY_PROPERTY(name)\
+    void set##name(const QString & v)\
+    {\
+        if (m_##name == v) return;\
+        m_##name = v;\
+        mf_##name = true;\
+    }
+    USER_PROPERTIES_MACRO()
+    #undef USER_PROPERTY
+    #undef USER_READONLY_PROPERTY
+
+    bool submitChange();
+private:
+    static User* currentUser;
+
+    // add properties store and modify flag
+    #define USER_READONLY_PROPERTY(name) QString m_##name;
+    #define USER_PROPERTY(name)\
+    USER_READONLY_PROPERTY(name)\
+    bool mf_##name = false;
+    USER_PROPERTIES_MACRO()
+    #undef USER_PROPERTY
+    #undef USER_READONLY_PROPERTY
+
+};
+
+
+#endif //GUI_USER_H