yacreader/YACReaderLibrary/db_helper.cpp
2013-04-20 21:28:59 +02:00

127 lines
3.6 KiB
C++

#include "db_helper.h"
#include <QMap>
#include <QString>
#include <QList>
#include <QDateTime>
#include <QFile>
#include <QFileInfo>
#include <QCoreApplication>
#include <QTextStream>
#include "library_item.h"
#include "comic_db.h"
#include "data_base_management.h"
#include "folder.h"
//server
//TODO optimizar, evitar que se tenga que leer en cada petición el archivo
//conservar un QDateTime stático que compruebe si libraries.yacr ha sido modificado
//libraries debe ser una variable estática
static QDateTime lastModified;
static QMap<QString,QString> libraries;
QMap<QString,QString> DBHelper::getLibraries()
{
QFileInfo fi(QCoreApplication::applicationDirPath()+"/libraries.yacr");
if(fi.lastModified() == lastModified)
return libraries;
lastModified = fi.lastModified();
libraries.clear();
QFile f(QCoreApplication::applicationDirPath()+"/libraries.yacr");
f.open(QIODevice::ReadOnly);
QTextStream txtS(&f);
QString content = txtS.readAll();
QStringList lines = content.split('\n');
QString line,name;
int i=0;
foreach(line,lines)
{
if((i%2)==0)
{
name = line;
}
else
{
//sólo se agregan las bibliotecas realmente disponibles
QSqlDatabase db = DataBaseManagement::loadDatabase(line.trimmed()+"/.yacreaderlibrary");
if(db.isValid())
libraries.insert(name.trimmed(),line.trimmed());
db.close();
}
i++;
}
f.close();
return libraries;
}
QList<LibraryItem *> DBHelper::getFolderContentFromLibrary(const QString & libraryName, qulonglong folderId)
{
QString libraryPath = DBHelper::getLibraries().value(libraryName);
QSqlDatabase db = DataBaseManagement::loadDatabase(libraryPath+"/.yacreaderlibrary");
QList<LibraryItem *> list = Folder::getFoldersFromParent(folderId,db,false);
db.close();
QSqlDatabase::removeDatabase(libraryPath);
return list;
}
QList<LibraryItem *> DBHelper::getFolderComicsFromLibrary(const QString & libraryName, qulonglong folderId)
{
QString libraryPath = DBHelper::getLibraries().value(libraryName);
QSqlDatabase db = DataBaseManagement::loadDatabase(libraryPath+"/.yacreaderlibrary");
QList<LibraryItem *> list = ComicDB::getComicsFromParent(folderId,db,false);
db.close();
QSqlDatabase::removeDatabase(libraryPath);
return list;
}
qulonglong DBHelper::getParentFromComicFolderId(const QString & libraryName, qulonglong id)
{
QString libraryPath = DBHelper::getLibraries().value(libraryName);
QSqlDatabase db = DataBaseManagement::loadDatabase(libraryPath+"/.yacreaderlibrary");
Folder f(id,db);
db.close();
QSqlDatabase::removeDatabase(libraryPath);
return f.parentId;
}
ComicDB DBHelper::getComicInfo(const QString & libraryName, qulonglong id)
{
QString libraryPath = DBHelper::getLibraries().value(libraryName);
QSqlDatabase db = DataBaseManagement::loadDatabase(libraryPath+"/.yacreaderlibrary");
ComicDB comic;
comic.load(id,db);
db.close();
QSqlDatabase::removeDatabase(libraryPath);
return comic;
}
QString DBHelper::getFolderName(const QString & libraryName, qulonglong id)
{
QString libraryPath = DBHelper::getLibraries().value(libraryName);
QSqlDatabase db = DataBaseManagement::loadDatabase(libraryPath+"/.yacreaderlibrary");
QString name="";
{
QSqlQuery selectQuery(db); //TODO check
selectQuery.prepare("SELECT name FROM folder WHERE id = :id");
selectQuery.bindValue(":id", id);
selectQuery.exec();
if(selectQuery.next())
{
QSqlRecord record = selectQuery.record();
name = record.value(0).toString();
}
}
db.close();
QSqlDatabase::removeDatabase(libraryPath);
return name;
}