Разнос по библиотекам + прикручиваем odb из redkitty

.gitmodules

@@ -1,6 +1,6 @@
 [submodule "redkbuild"]
 	path = redkbuild
-	url = ssh://git@gitea.redkit-lab.work:57322/redkit-lab/redkbuild.git
+	url = git@gitea.redkit-lab.work:redkit-lab/redkbuild.git
 [submodule "redkitty"]
 	path = redkitty
 	url = git@gitea.redkit-lab.work:redkit-lab/redkitty.git

src/database/databasemanager.cpp

@@ -1,118 +0,0 @@
-#include "databasemanager.h"
-
-// Singleton instance
-DatabaseManager& DatabaseManager::instance()
-{
-    static DatabaseManager instance;
-    return instance;
-}
-
-// Конструктор: создаем подключение
-DatabaseManager::DatabaseManager()
-{
-    db = QSqlDatabase::addDatabase("QSQLITE");
-    db.setDatabaseName("mydatabase.db");
-
-    if (!db.open())
-    {
-        qDebug() << "Ошибка открытия БД:" << db.lastError().text();
-    }
-    else
-    {
-        qDebug() << "База данных успешно открыта";
-    }
-}
-
-// Деструктор: закрываем подключение
-DatabaseManager::~DatabaseManager()
-{
-    if (db.isOpen())
-    {
-        db.close();
-    }
-}
-
-// Возвращает ссылку на объект БД
-QSqlDatabase& DatabaseManager::database()
-{
-    return db;
-}
-
-// Выполняет SQL-запрос (без параметров)
-bool DatabaseManager::executeQuery(const QString& query)
-{
-    QSqlQuery q;
-    if (!q.exec(query))
-    {
-        qDebug() << "Ошибка выполнения запроса:" << q.lastError().text();
-        return false;
-    }
-    return true;
-}
-
-// Выполняет подготовленный SQL-запрос с параметрами
-bool DatabaseManager::executePreparedQuery(const QString& query, const QStringList& values)
-{
-    QSqlQuery q;
-    q.prepare(query);
-
-    for (const auto& value : values)
-        q.addBindValue(value);
-
-    if (!q.exec())
-    {
-        qDebug() << "Ошибка выполнения подготовленного запроса:" << q.lastError().text();
-        return false;
-    }
-    return true;
-}
-
-QList<QVariantList> DatabaseManager::executeSelectQuery(const QString& query, const QStringList& values)
-{
-    QSqlQuery q;
-    q.prepare(query);
-
-    for (const auto& value : values)
-        q.addBindValue(value);
-
-    if (!q.exec())
-    {
-        qDebug() << "Ошибка выполнения SELECT запроса:" << q.lastError().text();
-        return {};
-    }
-
-    QList<QVariantList> results;
-    while (q.next())
-    {
-        QVariantList row;
-        for (int i = 0; i < q.record().count(); ++i)
-            row.append(q.value(i));
-        results.append(row);
-    }
-
-    return results;
-}
-
-QList<QVariantList> DatabaseManager::executeSelect(const SelectBuilder& selectBuilder)
-{
-    const auto queryString = selectBuilder.getSelect();
-    qDebug() << "Подготовленный запрос: " << queryString;
-
-    QSqlQuery q;
-    if (!q.prepare(queryString))
-        qDebug() << "Ошибка при подготовке запроса:" << q.lastError().text();
-
-    if (!q.exec())
-        qDebug() << "Ошибка при выполнении запроса:" << q.lastError().text();
-
-    QList<QVariantList> results;
-    while (q.next()) // Проходимся по строкам
-    {
-        QVariantList row;
-        for (int i = 0; i < q.record().count(); ++i) // Проходимся по столбцам
-            row.append(q.value(i));
-        results.append(row);
-    }
-
-    return results;
-}

src/database/databasemanager.h

@@ -1,61 +0,0 @@
-#ifndef DATABASEMANAGER_H
-#define DATABASEMANAGER_H
-
-#include "database_global.h"
-
-#include <QDebug>
-#include <QtSql>
-
-struct SelectBuilder
-{
-    QString tableName;
-    QStringList rows = { "*" };
-    QString where;
-
-    QString getSelect() const
-    {
-        QString allRows;
-
-        auto ri = rows.begin();
-        while (ri != rows.end())
-        {
-            allRows += (*ri++);
-
-            if (ri != rows.end())
-                allRows += ", ";
-        }
-
-        QString queryString = QString("SELECT %1").arg(allRows);
-
-        queryString += QString(" FROM %1").arg(tableName);
-
-        if (!where.isEmpty())
-            queryString += QString(" WHERE %1").arg(where);
-
-        queryString += ';';
-        return queryString;
-    }
-};
-
-class DATABASE_EXPORT DatabaseManager
-{
-public:
-    static DatabaseManager& instance(); // Singleton
-
-    QSqlDatabase& database();
-
-    bool executeQuery(const QString& query);
-    bool executePreparedQuery(const QString& query, const QStringList& values);
-
-    QList<QVariantList> executeSelectQuery(const QString& query, const QStringList& values = {});
-
-    QList<QVariantList> executeSelect(const SelectBuilder& selectBuilder);
-
-private:
-    DatabaseManager();
-    ~DatabaseManager();
-
-    QSqlDatabase db;
-};
-
-#endif // DATABASEMANAGER_H

src/main.cpp

@@ -134,40 +134,6 @@ int main(int argc, char* argv[])
     RestApiServer server(*db);
     server.start(8080);
 
-    /* Опыты с odb */
-
-    // const std::string dbPath = "test_db.sqlite";
-
-    // std::vector<Author_S> authors;
-
-    // odb::core::transaction trans(db->begin());
-    // for (auto data : fillDB())
-    // {
-    //     auto a = Author_S(data.first, data.last, data.age);
-    //     db->persist(a);
-    // }
-    // trans.commit();
-
-    // try
-    // {
-    //     odb::core::transaction tr(db->begin());
-    //     odb::query<Author_S> query;
-    //     odb::result<Author_S> result;
-
-    //     odb::result<Author_S> r(db->query<Author_S>(odb::query<Author_S>::age >= 2000));
-
-    //     for (const auto& author : r)
-    //     {
-    //         std::cout << "First: " << author.first() << ", Last: " << author.last() << ", Year: " << author.age() << std::endl;
-    //     }
-
-    //     tr.commit();
-    // }
-    // catch (const odb::exception& e)
-    // {
-    //     std::cerr << "ODB error: " << e.what() << std::endl;
-    //     return 1;
-    // }
     // Set up code that uses    the Qt event loop here.
     // Call a.quit() or a.exit() to quit the application.
     // A not very useful example would be including

src/model/author.h

@@ -0,0 +1,56 @@
+#ifndef AUTHOR_H
+#define AUTHOR_H
+
+#include <sql_builder/create_table.h>
+
+#include <QString>
+
+namespace model
+{
+
+namespace authorconst
+{
+
+const QString TABLE = "authors";
+
+const QString ID = "id";
+const QString NAME = "name";
+
+// const QString M_AUTHOR_ID = "id";
+// const QString M_AUTHOR_FIRST_NAME = "first_name";
+// const QString M_AUTHOR_LAST_NAME = "last_name";
+// const QString M_AUTHOR_YEAR = "year";
+
+}
+
+struct Author
+{
+    int id = 0;
+    QString name;
+    // QString firstName;
+    // QString lastName;
+    // QString birthdayYear;
+};
+
+static inline QString createTableAuthor()
+{
+    // query.exec("CREATE TABLE IF NOT EXISTS authors ("
+    //            "id INTEGER PRIMARY KEY AUTOINCREMENT,"
+    //            "name TEXT UNIQUE NOT NULL"
+    //            ")");
+
+    Builder::TableSchema tBuilder(model::authorconst::TABLE);
+    tBuilder.addColumn({ .name = model::authorconst::ID,
+                         .type = "INTEGER",
+                         .primaryKey = true });
+
+    tBuilder.addColumn({ .name = model::authorconst::NAME,
+                         .type = "TEXT",
+                         .notNull = true,
+                         .unique = true });
+    return tBuilder.get();
+}
+
+} // namespace model
+
+#endif // AUTHOR_H

src/model/book.h

@@ -0,0 +1,65 @@
+#ifndef BOOK_H
+#define BOOK_H
+
+#include <model/author.h>
+
+#include <sql_builder/create_table.h>
+
+#include <QString>
+
+namespace model
+{
+
+namespace bookconst
+{
+
+const QString TABLE = "books";
+
+const QString ID = "id";
+const QString TITLE = "title";
+const QString AUTHOR_ID = "author_id";
+const QString FILEPATH = "file_path";
+
+}
+
+struct Book
+{
+    int id = 0;
+    QString title;
+    Author author;
+    QString filePath;
+};
+
+static inline QString createTableBook()
+{
+    // query.exec("CREATE TABLE IF NOT EXISTS books ("
+    //            "id INTEGER PRIMARY KEY AUTOINCREMENT,"
+    //            "title TEXT NOT NULL,"
+    //            "file_path TEXT NOT NULL,"
+    //            "author_id INTEGER NOT NULL,"
+    //            "FOREIGN KEY (author_id) REFERENCES authors(id) ON DELETE CASCADE"
+    //            ");");
+
+    Builder::TableSchema tBuilder(model::bookconst::TABLE);
+    tBuilder.addColumn({ .name = model::bookconst::ID,
+                         .type = "INTEGER",
+                         .primaryKey = true });
+
+    tBuilder.addColumn({ .name = model::bookconst::TITLE,
+                         .type = "TEXT",
+                         .notNull = true });
+
+    tBuilder.addColumn({ .name = model::bookconst::FILEPATH,
+                         .type = "TEXT",
+                         .notNull = true });
+
+    tBuilder.addColumn({ .name = model::bookconst::AUTHOR_ID,
+                         .type = "INTEGER",
+                         .notNull = true,
+                         .foreignKeyTable = model::authorconst::TABLE,
+                         .foreignKeyColumn = model::authorconst::ID });
+    return tBuilder.get();
+}
+
+} // namespace model
+#endif // BOOK_H

src/model/model.qbs

@@ -0,0 +1,15 @@
+import qbs
+
+PSLibrary {
+    Depends { name: "Qt"; submodules: "core", "sql"}
+
+    Depends { name: "sql_builder" }
+
+    Group {
+        name: "cpp"
+        files: [
+            "*.h",
+            "*.cpp"
+        ]
+    }
+}

src/repositories/author_repository.cpp

@@ -0,0 +1,78 @@
+// #define BUILD_REPOSITORIES
+#include "author_repository.h"
+
+#include <sql_builder/insert.h>
+#include <sql_builder/select.h>
+
+#include <QDebug>
+
+QVector<model::Author> AuthorRepository::getAll()
+{
+    QVector<model::Author> authors;
+
+    Builder::Select sBuilder({ .tableName = model::authorconst::TABLE, .rows = { model::authorconst::ID, model::authorconst::NAME } });
+    QSqlQuery query(sBuilder.get());
+
+    qDebug() << query.lastError().text();
+
+    while (query.next())
+    {
+        authors.append({ query.value(0).toInt(),
+                         query.value(1).toString() });
+    }
+
+    return authors;
+}
+
+std::optional<model::Author> AuthorRepository::getByName(const QString& name)
+{
+    Q_UNUSED(name);
+    Builder::Select sBuilder({ .tableName = model::authorconst::TABLE, .rows = { model::authorconst::ID, model::authorconst::NAME } });
+    QString qResult = sBuilder.get() + QString(" WHERE %1 = \"%2\"").arg(model::authorconst::NAME).arg(name);
+
+    QSqlQuery query(qResult);
+
+    if (query.next())
+    {
+        model::Author author({ .id = query.value(0).toInt(),
+                               .name = query.value(1).toString() });
+        return { author };
+    }
+
+    return std::nullopt;
+}
+
+bool AuthorRepository::insert(const model::Author& author)
+{
+    QSqlQuery query(DatabaseManager::instance().database());
+    Builder::Insert iBuild({ model::authorconst::TABLE,
+                             { model::authorconst::NAME },
+                             true });
+
+    query.prepare(iBuild.get());
+    query.bindValue(":name", author.name);
+    int authorId = 0;
+    Q_UNUSED(authorId);
+
+    if (!query.exec())
+    {
+        qDebug() << query.lastError().text();
+        if (query.lastError().nativeErrorCode() == 19)
+        {
+            // Автор уже есть, ищем его ID
+            QSqlQuery findQuery(DatabaseManager::instance().database());
+            findQuery.prepare("SELECT id FROM authors WHERE name = :name");
+            findQuery.bindValue(":name", author.name);
+            if (findQuery.exec() && findQuery.next())
+            {
+                authorId = findQuery.value(0).toInt();
+                return true;
+            }
+        }
+        qCritical() << "Ошибка добавления автора:" << query.lastError().text();
+        return false;
+    }
+
+    authorId = query.lastInsertId().toInt();
+    return true;
+}

src/repositories/author_repository.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <model/author.h>
+
+#include <database/databasemanager.h>
+
+#include <QSqlDatabase>
+#include <QSqlError>
+#include <QSqlQuery>
+#include <QString>
+#include <QVariant>
+#include <QVector>
+#include <optional>
+
+#ifdef BUILD_REPOSITORIES
+#define REPOSITORIES_EXPORT Q_DECL_EXPORT
+#else
+#define REPOSITORIES_EXPORT Q_DECL_IMPORT
+#endif
+
+class REPOSITORIES_EXPORT AuthorRepository
+{
+public:
+    static QVector<model::Author> getAll();
+    static std::optional<model::Author> getByName(const QString& name);
+    static bool insert(const model::Author& author);
+
+    // TODO Возвращать не bool - а номер id записи
+};

src/repositories/book_repository.cpp

@@ -0,0 +1,59 @@
+// #define BUILD_REPOSITORIES
+#include "book_repository.h"
+
+#include <QDebug>
+#include <qsqlerror.h>
+
+#include <sql_builder/insert.h>
+#include <sql_builder/select.h>
+
+QVector<model::Book> BookRepository::getAll()
+{
+    QVector<model::Book> books;
+    Builder::Select qBuilder {
+        model::bookconst::TABLE,
+        { model::bookconst::ID,
+          model::bookconst::TITLE,
+          model::bookconst::AUTHOR_ID,
+          model::bookconst::FILEPATH }
+    };
+
+    QSqlQuery query(qBuilder.get());
+
+    qDebug() << query.lastError().text();
+
+    while (query.next())
+    {
+        books.append({ query.value(0).toInt(),
+                       query.value(1).toString(),
+                       { query.value(2).toInt() },
+                       query.value(3).toString() });
+    }
+
+    // TODO получить так же авторов как строку
+
+    return books;
+}
+
+bool BookRepository::insert(const model::Book& book)
+{
+    QSqlQuery query(DatabaseManager::instance().database());
+
+    Builder::Insert iBuilder {
+        model::bookconst::TABLE,
+        { model::bookconst::TITLE,
+          model::bookconst::FILEPATH,
+          model::bookconst::AUTHOR_ID }
+    };
+
+    query.prepare(iBuilder.get());
+    query.bindValue(":" + model::bookconst::TITLE, book.title);
+    query.bindValue(":" + model::bookconst::FILEPATH, book.filePath);
+    query.bindValue(":" + model::bookconst::AUTHOR_ID, book.author.id);
+
+    bool res = query.exec();
+    if (!res)
+        qDebug() << query.lastError().text();
+
+    return res;
+}

src/repositories/book_repository.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <model/book.h>
+
+#include <database/databasemanager.h>
+
+#include <QSqlQuery>
+#include <QVariant>
+#include <QVector>
+
+#ifdef BUILD_REPOSITORIES
+#define REPOSITORIES_EXPORT Q_DECL_EXPORT
+#else
+#define REPOSITORIES_EXPORT Q_DECL_IMPORT
+#endif
+
+class REPOSITORIES_EXPORT BookRepository
+{
+public:
+    static QVector<model::Book> getAll();
+    static bool insert(const model::Book& book);
+};

src/repositories/repositories.qbs

@@ -0,0 +1,21 @@
+import qbs
+
+PSLibrary {
+    Depends { name: "Qt"; submodules: "core", "sql"}
+
+    Depends { name: "database" }
+    Depends { name: "sql_builder" }
+
+    Group {
+        name: "cpp"
+        files: [
+            "*.h",
+            "*.cpp"
+        ]
+    }
+
+    Properties {
+        condition: qbs.buildVariant === "debug"
+        cpp.defines: ["BUILD_REPOSITORIES"]
+    }
+}

src/restapi/restapiserver.cpp

@@ -27,8 +27,8 @@ void RestApiServer::start(quint16 port)
     }
     else
     {
-        QString addrs = "http://127.0.0.1:" + QString::number(this->serverPort());
-        qDebug() << "REST API сервер запущен по адресу:" << addrs;
+        qDebug() << "REST API сервер запущен по адресу:";
+        qDebug() << QString("http://127.0.0.1:%1").arg(port);
     }
 }
 
@@ -59,7 +59,7 @@ void RestApiServer::handleRequest()
 
 QByteArray RestApiServer::processRequest(const QString& request)
 {
-    qWarning() << request << "\n\n";
+    // qWarning() << request << "\n\n";
 
     if (request.startsWith("GET /books/author/"))
     {
@@ -70,11 +70,6 @@ QByteArray RestApiServer::processRequest(const QString& request)
         QString firstName = nameParts.size() > 0 ? nameParts[0] : "";
         QString lastName = nameParts.size() > 1 ? nameParts[1] : "";
 
-        qWarning()
-        << "author:" << author << "\n"
-        << "firstName:" << firstName << "\n"
-        << "lastName:" << lastName << "\n";
-
         odb::transaction t(m_db.begin());
 
         auto books = m_db.query<Book_S>(odb::query<Book_S>::author->id == ageReq);
@@ -102,7 +97,6 @@ QByteArray RestApiServer::processRequest(const QString& request)
         odb::result<Book_S> res(m_db.query<Book_S>());
 
         QJsonArray jArray;
-
         for (auto it = res.begin(); it != res.end(); ++it)
         {
             const auto& book = *it;
@@ -115,7 +109,6 @@ QByteArray RestApiServer::processRequest(const QString& request)
             jArray.push_back(j);
         }
         auto jDoc = QJsonDocument(jArray);
-
         t.commit();
 
         return "HTTP/1.1 200 OK\r\nContent-Type: application/json\r\n\r\n" + jDoc.toJson(QJsonDocument::Indented);
@@ -127,7 +120,6 @@ QByteArray RestApiServer::processRequest(const QString& request)
         odb::result<Author_S> res(m_db.query<Author_S>());
 
         QJsonArray jArray;
-
         for (auto it = res.begin(); it != res.end(); ++it)
         {
             const auto& author = *it;
@@ -140,8 +132,8 @@ QByteArray RestApiServer::processRequest(const QString& request)
             jArray.push_back(j);
         }
         auto jDoc = QJsonDocument(jArray);
-
         t.commit();
+
         return "HTTP/1.1 200 OK\r\nContent-Type: application/json\r\n\r\n" + jDoc.toJson(QJsonDocument::Indented);
     }
 

src/services/author_service.cpp

@@ -0,0 +1,12 @@
+// #define BUILD_SERVICES
+#include "author_service.h"
+
+QVector<model::Author> AuthorService::fetchAll()
+{
+    return AuthorRepository::getAll();
+}
+
+bool AuthorService::add(const model::Author& author)
+{
+    return AuthorRepository::insert(author);
+}

src/services/author_service.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <model/author.h>
+
+#include <repositories/author_repository.h>
+
+#include <QVector>
+
+#ifdef BUILD_SERVICES
+#define SERVICES_EXPORT Q_DECL_EXPORT
+#else
+#define SERVICES_EXPORT Q_DECL_IMPORT
+#endif
+
+class SERVICES_EXPORT AuthorService
+{
+public:
+    static QVector<model::Author> fetchAll();
+    static bool add(const model::Author& name);
+};

src/services/book_service.cpp

@@ -0,0 +1,28 @@
+// #define BUILD_SERVICES
+#include "book_service.h"
+#include "author_service.h"
+
+QVector<model::Book> BookService::fetchAll()
+{
+    return BookRepository::getAll();
+}
+
+bool BookService::add(const model::Book& book)
+{
+    auto res = AuthorRepository::getByName(book.author.name);
+
+    if (!res.has_value())
+    {
+        if (!AuthorService::add(book.author))
+        {
+            qCritical() << "Ошибка добавления автора!";
+            return false;
+        }
+
+        res = AuthorRepository::getByName(book.author.name);
+    }
+
+    model::Book BookAuthor = book;
+    BookAuthor.author = res.value();
+    return BookRepository::insert(BookAuthor);
+}

src/services/book_service.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <model/book.h>
+
+#include <repositories/book_repository.h>
+
+#include <QVector>
+
+#ifdef BUILD_SERVICES
+#define SERVICES_EXPORT Q_DECL_EXPORT
+#else
+#define SERVICES_EXPORT Q_DECL_IMPORT
+#endif
+
+class SERVICES_EXPORT BookService
+{
+public:
+    static QVector<model::Book> fetchAll();
+    static bool add(const model::Book& book);
+};

src/services/services.qbs

@@ -0,0 +1,22 @@
+import qbs
+
+PSLibrary {
+    Depends { name: "Qt"; submodules: "core", "sql"}
+
+    Depends { name: "repositories" }
+
+    Group {
+        name: "cpp"
+        files: [
+            "*.h",
+            "*.cpp"
+        ]
+    }
+
+
+
+    Properties {
+        condition: qbs.buildVariant === "debug"
+        cpp.defines: ["BUILD_SERVICES"]
+    }
+}

src/sql_builder/create_table.cpp

@@ -0,0 +1,45 @@
+#include "create_table.h"
+
+#include <QDebug>
+
+namespace Builder
+{
+
+QString Column::toSQL() const
+{
+    QString columnDef = name + " " + type;
+    if (primaryKey)
+        columnDef += " PRIMARY KEY";
+    if (notNull)
+        columnDef += " NOT NULL";
+    if (unique)
+        columnDef += " UNIQUE";
+    if (defaultValue)
+        columnDef += " DEFAULT " + *defaultValue;
+    if (foreignKeyTable && foreignKeyColumn)
+    {
+        columnDef += " REFERENCES " + *foreignKeyTable + "(" + *foreignKeyColumn + ")";
+    }
+    return columnDef;
+}
+
+TableSchema& TableSchema::addColumn(const Column& column)
+{
+    columns.push_back(column);
+    return *this;
+}
+
+QString TableSchema::get() const
+{
+    QStringList columnDefs;
+    for (const auto& col : columns)
+    {
+        columnDefs.append(col.toSQL());
+    }
+
+    QString result = "CREATE TABLE IF NOT EXISTS " + name + " ( " + columnDefs.join(", ") + " );";
+    // qDebug() << result;
+    return result;
+}
+
+} // namespace Builder

src/sql_builder/create_table.h

@@ -0,0 +1,50 @@
+#pragma once
+
+#include <QString>
+#include <QStringList>
+#include <QVector>
+
+#include <optional>
+
+namespace Builder
+{
+
+struct Column
+{
+    QString name;            // Имя колонки
+    QString type;            // Тип колонки
+    bool primaryKey = false; // Является ли колонка первичным ключом?
+    bool notNull = false;    // Колонка не должна быть пуста
+    bool unique = false;     // Значение в колонке должны быть уникальны
+    std::optional<QString> defaultValue;
+    std::optional<QString> foreignKeyTable;
+    std::optional<QString> foreignKeyColumn;
+
+    /*!
+     * \brief Сформировать SQL код для колонки
+     */
+    QString toSQL() const;
+};
+
+class Q_DECL_EXPORT TableSchema
+{
+public:
+    TableSchema(QString tableName) :
+        name(std::move(tableName)) {}
+
+    /*!
+     * \brief Добавить колонку
+     */
+    TableSchema& addColumn(const Column& column);
+
+    /*!
+     * \brief Сформировать SQL код для создания таблицы
+     */
+    QString get() const;
+
+private:
+    QString name;            // Имя таблицы
+    QVector<Column> columns; // Список колонок таблицы
+};
+
+} // namespace Builder

src/sql_builder/insert.cpp

@@ -0,0 +1,39 @@
+#include "insert.h"
+
+#include <QDebug>
+
+namespace Builder
+{
+
+namespace
+{
+
+const QString INSERT = QStringLiteral("INSERT");
+const QString INTO = QStringLiteral("INTO");
+const QString VALUES = QStringLiteral("VALUES");
+const QString IGNORE = QStringLiteral("IGNORE");
+
+}
+
+QString Insert::get() const
+{
+    QString resultString = QString("%1 ").arg(INSERT);
+    if (orIgnore)
+        resultString += QString("OR %1 ").arg(IGNORE);
+    resultString += QString("%1 %2 ").arg(INTO).arg(tableName);
+
+    resultString += QString("( %1 ) ").arg(rows.join(", "));
+
+    // TODO как будто бы проще сразу это заполнить значениями
+    QStringList allValue;
+    for (const auto& row : rows)
+        allValue.push_back(QString(":%1").arg(row));
+
+    resultString += QString("%1 ( %2 )").arg(VALUES).arg(allValue.join(", "));
+
+    resultString += ';';
+    // qDebug() << resultString;
+    return resultString;
+}
+
+} // namespace Builder

src/sql_builder/insert.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <QString>
+#include <QStringList>
+
+namespace Builder
+{
+
+struct Q_DECL_EXPORT Insert
+{
+    QString tableName; // Имя таблицы
+    QStringList rows;  // Именования колонок
+    // QStringList params;
+    bool orIgnore = false;
+
+    /*!
+     * \brief Сформировать SQL код для выполнения
+     */
+    QString get() const;
+};
+
+} // namespace Builder

src/sql_builder/select.cpp

@@ -0,0 +1,32 @@
+#include "select.h"
+
+#include <QDebug>
+
+namespace Builder
+{
+
+namespace
+{
+
+const QString SELECT = QStringLiteral("SELECT");
+const QString FROM = QStringLiteral("FROM");
+const QString WHERE = QStringLiteral("WHERE");
+
+}
+
+QString Select::get() const
+{
+    QString allRows = rows.join(", ");
+
+    QString resultString = QString("%1 %2").arg(SELECT).arg(allRows);
+
+    resultString += QString(" %1 %2").arg(FROM).arg(tableName);
+
+    if (!where.isEmpty())
+        resultString += QString(" %1 %2").arg(WHERE).arg(where);
+
+    // resultString += ';';
+    return resultString;
+}
+
+} // namespace Builder

src/sql_builder/select.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <QString>
+#include <QStringList>
+
+namespace Builder
+{
+
+struct Q_DECL_EXPORT Select
+{
+    QString tableName;          // Имя таблицы
+    QStringList rows = { "*" }; // Колонки
+    QString where = {};         // Условие поиска
+
+    /*!
+     * \brief Сформировать SQL код для выполнения
+     */
+    QString get() const;
+};
+
+} // namespace Builder

src/sql_builder/sql_builder.qbs

@@ -0,0 +1,14 @@
+import qbs
+
+PSLibrary {
+    Depends { name: "Qt"; submodules: "sql"}
+
+
+    Group {
+        name: "cpp"
+        files: [
+            "**/*.h",
+            "**/*.cpp"
+        ]
+    }
+}