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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_MEDIA_GALLERY_MEDIA_GALLERY_DATABASE_H_
#define CHROME_BROWSER_MEDIA_GALLERY_MEDIA_GALLERY_DATABASE_H_
#include "base/basictypes.h"
#include "base/file_path.h"
#include "chrome/browser/media_gallery/media_gallery_database_types.h"
#include "sql/connection.h"
#include "sql/init_status.h"
#include "sql/meta_table.h"
namespace chrome {
// Encapsulates the SQL database that stores pre-parsed media gallery metadata
// for search and retrieval.
class MediaGalleryDatabase {
public:
MediaGalleryDatabase();
virtual ~MediaGalleryDatabase();
// Must call this function to complete initialization. Will return true on
// success. On false, no other function should be called.
sql::InitStatus Init(const FilePath& database_path);
// Returns the current version that we will generate media gallery databases
// with.
static int GetCurrentVersion();
// Sets the id field of the input collection_row to the generated unique
// key value and returns the same. On failure, returns zero.
int CreateCollectionRow(CollectionRow* collection_row);
// Finds the row with the specified id and fills its data into the collection
// pointer passed by the caller. Returns true on success.
bool GetCollectionRow(CollectionId id, CollectionRow* collection);
protected:
virtual sql::Connection& GetDB();
// Initializes an already open database.
sql::InitStatus InitInternal(sql::Connection* db);
static bool DoesCollectionsTableExist(sql::Connection* db);
private:
static bool CreateCollectionsTable(sql::Connection* db);
sql::InitStatus EnsureCurrentVersion();
void FillCollectionRow(const sql::Statement& statement, CollectionRow* row);
sql::Connection db_;
sql::MetaTable meta_table_;
DISALLOW_COPY_AND_ASSIGN(MediaGalleryDatabase);
};
} // namespace chrome
std::ostream& operator<<(std::ostream& out, const chrome::CollectionRow& row);
#endif // CHROME_BROWSER_MEDIA_GALLERY_MEDIA_GALLERY_DATABASE_H_
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