qsqlbuilder/sqlbuilder/Query.cpp at master · MasterAler/qsqlbuilder · GitHub

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#include "Query.h"

#include "Config.h"

#include "Selector.h"

#include "Inserter.h"

#include "Deleter.h"

#include "Updater.h"

#include <QSqlDatabase>

#include <QSqlRecord>

#include <QSqlQuery>

#include <QSqlError>

#include <QSqlIndex>

#include <QUuid>

#include <QDebug>

struct Query::QueryPrivate

{

QueryPrivate(const QString& tableName, const QString& pkey)

: m_DB(Query::defaultConnection())

, m_tableName(tableName)

{

m_DB.setDatabaseName(Config::DBNAME);

m_DB.setHostName(Config::HOSTNAME);

m_DB.setUserName(Config::USERNAME);

m_DB.setPassword(Config::PASSWORD);

if (!m_DB.isOpen())

{

if (!m_DB.open())

throw std::runtime_error("Database was not opened! =(");

}

m_pkey = pkey.isEmpty() ? m_DB.primaryIndex(m_tableName).fieldName(0) : pkey;

QSqlRecord columns = m_DB.record(m_tableName);

for(int i = 0; i < columns.count(); ++i)

m_columnNames << columns.fieldName(i);

}

QSqlDatabase m_DB;

QString m_tableName;

QString m_pkey;

QStringList m_columnNames;

QSqlError m_lastError;

};

bool Query::LOG_QUERIES { false };

/**********************************************************************************/

Query::Query(const QString& tableName, const QString& pkey)

: impl(new QueryPrivate(tableName, pkey))

{ }

Query::~Query()

{

impl->m_DB.close();

}

Query::Query(Query &&) = default;

void Query::setQueryLoggingEnabled(bool enabled)

{

Query::LOG_QUERIES = enabled;

}

QSqlQuery Query::performSQL(const QString& sql) const

{

QSqlQuery sqlQuery(impl->m_DB);

sqlQuery.exec(sql);

if (Query::LOG_QUERIES)

qDebug() << sqlQuery.lastQuery();

impl->m_lastError = sqlQuery.lastError();

return sqlQuery;

}

QSqlError Query::lastError() const

{

return impl->m_lastError;

}

bool Query::hasError() const

{

return impl->m_lastError.isValid();

}

QString Query::tableName() const

{

return impl->m_tableName;

}

QString Query::primaryKeyName() const

{

return impl->m_pkey;

}

QStringList Query::columnNames() const

{

return impl->m_columnNames;

}

QStringList Query::tableColumnNames(const QString& tableName) const

{

QStringList result;

QSqlRecord columns = impl->m_DB.record(tableName);

for(int i=0; i < columns.count(); ++i)

result << columns.fieldName(i);

return result;

}

Selector Query::select(const QStringList& fields) const

{

return Selector(this, fields);

}

Inserter Query::insert(const QStringList& fields) const

{

return Inserter(this, fields);

}

Deleter Query::delete_(OP::Clause&& whereClause) const

{

return Deleter(this, std::forward<OP::Clause>(whereClause));

}

Updater Query::update(const QVariantMap& updateValues) const

{

return Updater(this, updateValues);

}

bool Query::transact(std::function<void ()>&& operations)

{

bool result;

if (impl->m_DB.transaction())

{

std::move(operations)();

if (hasError())

{

impl->m_DB.rollback();

result = false;

}

else

result = impl->m_DB.commit();

}

else

return false;

return result;

}

QSqlDatabase& Query::defaultConnection()

{

static QSqlDatabase dbInstance = QSqlDatabase::addDatabase(Config::DRIVER, QUuid::createUuid().toString());

return dbInstance;

}

qsqlbuilder/sqlbuilder/Query.cpp at master · MasterAler/qsqlbuilder · GitHub

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