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Revision bcd2b697

Von Christian Ehringfeld vor mehr als 9 Jahren hinzugefügt

  • ID bcd2b69784b5ae7109abdf6a310805e4d440a1b5
  • Vorgänger ae331910
  • Nachfolger c047c335

sqlitebackups

Unterschiede anzeigen:

EntityManager.pro
src/join.h \
src/queryinterpreter.h \
src/expression.h \
src/orderby.h
src/orderby.h \
src/sqlitebackupprocessor.h
SOURCES += \
src/entity.cpp \
......
src/join.cpp \
src/queryinterpreter.cpp \
src/expression.cpp \
src/orderby.cpp
src/orderby.cpp \
src/sqlitebackupprocessor.cpp
CONFIG += c++14
QMAKE_CXXFLAGS += -std=c++14
LIBS += -lsqlite3
unix {
target.path = /usr/lib
INSTALLS += target
samples/example/main.cpp
#include "models/faker/createfakemodeldata.h"
#include "querybuilder.h"
#include "orderby.h"
#include "sqlitebackupprocessor.h"
using namespace CuteEntityManager;
int main(int argc, char *argv[]) {
Q_UNUSED(argc) Q_UNUSED(argv)
QTime t;
t.start();
CuteEntityManager::EntityManager *e = new
// CuteEntityManager::EntityManager("QSQLITE",
// QDir::currentPath() + "/db.sqlite", "", "", "", 0, true);
//QSqlDatabase db = QSqlDatabase()
CuteEntityManager::EntityManager("QSQLITE",
QDir::currentPath() + "/db.sqlite", "", "", "", 0, true);
// CuteEntityManager::EntityManager("QSQLITE",
// ":memory:");
":memory:");
SqliteBackupProcessor *sqliteproc = new SqliteBackupProcessor(e->getDb(),
QDir::currentPath());
qWarning() << "DB Loaded:" << sqliteproc->sqliteDBMemFile(false, "db.sqlite");
/**
* @brief EntityInstanceFactory::registerClass<EntityClass>
* You must register every EntityClass, cause Qt is not creating all meta object informations for entity manager
......
* Instead of startup(version,qstringlist) you can call method createTable of EntityManager (e->create(sharedptr))
* startup will create tables inclusive relation tables for classes in QStringList inits
*/
e->startup("0.1", inits);
qWarning() << "Tables created:" << e->startup("0.1", inits);
QSharedPointer<CuteEntityManager::Entity> p =
QSharedPointer<CuteEntityManager::Entity>(new Person("Max", "Mustermann",
Person::Gender::MALE, "", "", "",
......
e->remove(entityGroupFindPtr);
qWarning() << "Duration:" << t.elapsed();
sqliteproc->sqliteDBMemFile(true, "db.sqlite");
delete sqliteproc;
return 0;
}
src/entitymanager.cpp
return this->schema->getQueryBuilder();
}
EntityManager::EntityManager(QSqlDatabase database) : QObject() {
auto db = new Database(database);
EntityManager::EntityManager(QSqlDatabase database,
bool logQueries) : QObject() {
auto db = new Database(database, true, logQueries);
this->db = QSharedPointer<Database>(db);
this->init();
}
......
if (!propertyIsValid) {
qWarning() << "Relation is incomplete:" << r.getPropertyName();
qWarning() << "Involved entities: " << EntityHelper::getClassName(
e.data()) <<
"(MainEntitiy) and " << EntityHelper::getClassName(relatedEntity.data());
e.data()) <<
"(MainEntitiy) and " << EntityHelper::getClassName(relatedEntity.data());
}
return propertyIsValid;
}
......
void EntityManager::missingManyToManyTable(const QString &tblName,
const QSharedPointer<Entity> &e, const Relation &r) {
qWarning() << "MANY_TO_MANY Table " << tblName << " is missing";
qWarning() << "Entity " << EntityHelper::getClassName(e.data()) << " is affected";
qWarning() << "Entity " << EntityHelper::getClassName(e.data()) <<
" is affected";
qWarning() << "Relation of property: " << r.getPropertyName();
/**
@todo wait for Qt 5.5.1
......
}
rc = this->db->exec(query);
if (!rc) {
qWarning() << "class is erroneous:" << EntityHelper::getClassname(entity.data());
qWarning() << "class is erroneous:" << EntityHelper::getClassname(
entity.data());
break;
}
if (first) {
src/entitymanager.h
qint8 count(Query &query);
public:
EntityManager(QSqlDatabase database);
EntityManager(QSqlDatabase database, bool logQueries = false);
EntityManager(const QString &databaseType, QString databasename = "" ,
QString hostname = "",
QString username = "",
src/sqlitebackupprocessor.cpp
#include "sqlitebackupprocessor.h"
#include "sqlite3.h"
#include <sqlite3.h>
using namespace CuteEntityManager;
SqliteBackupProcessor::SqliteBackupProcessor(QSharedPointer<Database> database,
QString destination) {
QString destination) : QObject() {
this->database = database;
this->destination = destination;
}
SqliteBackupProcessor::~SqliteBackupProcessor() {
}
QSharedPointer<Database> SqliteBackupProcessor::getDatabase() const {
return database;
}
......
destination = value;
}
bool SqliteBackupProcessor::backup(QString fileName = "db.sqlite.bak") {
/**
* @see http://www.qtcentre.org/threads/36131-Attempting-to-use-Sqlite-backup-api-from-driver-handle-fails
* @brief SqliteBackupProcessor::backup
* @param fileName
* @return
* This function is used to load the contents of a database file on disk
* into the "main" database of open database connection pInMemory, or
* to save the current contents of the database opened by pInMemory into
* a database file on disk. pInMemory is probably an in-memory database,
* but this function will also work fine if it is not.
*
* Parameter zFilename points to a nul-terminated string containing the
* name of the database file on disk to load from or save to. If parameter
* isSave is non-zero, then the contents of the file zFilename are
* overwritten with the contents of the database opened by pInMemory. If
* parameter isSave is zero, then the contents of the database opened by
* pInMemory are replaced by data loaded from the file zFilename.
*
* If the operation is successful, SQLITE_OK is returned. Otherwise, if
* an error occurs, an SQLite error code is returned.
*/
bool SqliteBackupProcessor::sqliteDBMemFile(bool save, QString fileName) {
bool state = false;
bool save = true;
QVariant v = this->database->getDatabase().driver()->handle();
if ( v.isValid() && qstrcmp(v.typeName(), "sqlite3*") == 0 ) {
// v.data() returns a pointer to the handle
......
** for any reason. */
rc = sqlite3_open( zFilename, &pFile );
if ( rc == SQLITE_OK ) {
/* If this is a 'load' operation (isSave==0), then data is copied
** from the database file just opened to database pInMemory.
** Otherwise, if this is a 'save' operation (isSave==1), then data
......
** pTo accordingly. */
pFrom = ( save ? pInMemory : pFile);
pTo = ( save ? pFile : pInMemory);
/* Set up the backup procedure to copy from the "main" database of
** connection pFile to the main database of connection pInMemory.
** If something goes wrong, pBackup will be set to NULL and an error
......
}
rc = sqlite3_errcode(pTo);
}
/* Close the database connection opened on database file zFilename
** and return the result of this function. */
(void)sqlite3_close(pFile);
if ( rc == SQLITE_OK ) {
state = true;
}
src/sqlitebackupprocessor.h
namespace CuteEntityManager {
class SqliteBackupProcessor : public QObject {
public:
SqliteBackupProcessor(QSharedPointer<Database> database, QString destination);
explicit SqliteBackupProcessor(QSharedPointer<Database> database, QString destination);
~SqliteBackupProcessor();
QSharedPointer<Database> getDatabase() const;
void setDatabase(const QSharedPointer<Database> &value);
......
void setDestination(const QString &value);
public slots:
bool backup(QString fileName);
bool sqliteDBMemFile(bool save,QString fileName= "db.sqlite.bak");
private:
QSharedPointer<Database> database;
QString destination;

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