PowerModeler/include/global.h

#ifndef GLOBAL_H
#define GLOBAL_H

#include <QString>
#include <QSqlError>
#include <QVector>

enum DialogState
{
    DS_New,
    DS_Edit
};

enum EditStateFlag
{
    Clean     = 0,      // 二进制: 0b0000
    Modified  = 1 << 0, // 二进制: 0b0001
    New       = 1 << 1, // 二进制: 0b0010
    Deleted   = 1 << 2  // 二进制: 0b0100
};
//创建 QFlags 包装类型
Q_DECLARE_FLAGS(EditState, EditStateFlag)
//生成运算符重载
Q_DECLARE_OPERATORS_FOR_FLAGS(EditState)

struct DatabaseConfig
{
    QString strID; //存储在配置文件时用作唯一标识
    QString strConnectionName;
    QString strDBType; //"QPSQL","QMYSQL"...
    QString strHost;
    int     nPort;
    QString strDBName;
    QString strUserName;
    QString strPassword;
    bool    bSavePS;
    QString strComment;

    DatabaseConfig()
    {
        strConnectionName = "";
        strDBType = "QPSQL";
        strHost = "";
        nPort = 5432;
        strDBName = "postgres";
        strUserName = "";
        strPassword = "";
        bSavePS = true;
        strComment = "";
    }
};

struct AttributeGroup
{
    int id;
    QString name; //中文展示名称
    QString type; //英文标识名称
    QString remark;
    bool isPublic;

    AttributeGroup()
    {
        id = -1;
        name = "";
        type = "";
        remark = "";
        isPublic = false;
    }

    //利用移动语义优化的构造函数(不定义也可以，QString实际上实现了隐式共享)
    AttributeGroup(int id, QString name, QString type, QString remark, bool isPublic)
        : id(id),
        name(std::move(name)),
        type(std::move(type)),
        remark(std::move(remark)),
        isPublic(isPublic){}
};

struct Model
{
    int id;
    QString name; //中文展示名称
    QString type; //英文标识名称
    QString remark;
    QVector<int> groups;

    Model(int id, QString name, QString type, QString remark, QVector<int> groups)
        : id(id),
        name(std::move(name)),
        type(std::move(type)),
        remark(std::move(remark)),
        groups(std::move(groups)){}

};

struct Attribute
{
    int id;
    QString name; //中文展示名称(filed:attribute_name)
    QString type; //英文表示名称(filed:attribute),不可重名
    int dataTypeID;
    int dataLength; //filed:length_precision
    QString defaultValue;

    Attribute()
    {
        id = -1;
        name = "";
        type = "";
        dataTypeID = -1;
        dataLength = -1;
        defaultValue = "";
    }

    Attribute(int id, QString name, QString type, int dataTypeID, int dataLength, QString defaultVaule)
        :id(id),
        name(std::move(name)),
        type(std::move(type)),
        dataTypeID(dataTypeID),
        dataLength(dataLength),
        defaultValue(std::move(defaultVaule)){}
};

struct ModelAttributeGroup
{
    int modelID;
    int groupID;
    QString strModelName;
    QString strGroupName;

    ModelAttributeGroup(int modelID, int groupID, QString strModelName, QString strGroupName)
        : modelID(modelID),
        groupID(groupID),
        strModelName(std::move(strModelName)),
        strGroupName(std::move(strGroupName)){}
};

struct PaginationInfo
{
    int totalEntries; //数据条目总数量
    int entriesPerPage; //每页条目数量
    int totalPages; //总页数
    int currentPage; //当前页数
};

class DatabaseException : public std::runtime_error
{
public:
    explicit DatabaseException(const QSqlError& error)
        : std::runtime_error(error.text().toStdString()), m_error(error) {}

    QSqlError error() const { return m_error; }

private:
    QSqlError m_error;
};

#endif