Files
qelectrotech-source-mirror/sources/dataBase/projectdatabase.h
T
ispyisail bc79a5df7a Keep a conductor's row in step, and index the columns the view scans
Three fixes to the tables added by this slice.

A conductor's text was written once at insert and never again. Renaming a
wire left the database holding the old number, so the wiring list showed a
stale value until the next full repopulate -- elements have
elementInfoChanged() for exactly this and conductors had nothing.
Conductor::setProperties() has around a dozen call sites (auto-numbering,
the properties dialog, element moves, the delete command's re-links), so
rather than adding a call to each and missing the ones added later, listen
to the propertiesChange() signal it already emits. Qt::UniqueConnection
means a repeated insert or a full repopulate cannot double-subscribe, and
the connection is established on both insert paths because conductors read
from a file never pass through addConductor().

addConductor() and populateConductorTable() each carried their own copy of
the same seven bindValue() lines. They had not drifted yet, but that is the
same duplication the element paths had before bindElementValues(), where
they had drifted -- one binding kindInformations()["type"] and the other
masterTypeToString(). One bindConductorValues() for both.

Finally, index the conductor columns that get looked up per element rather
than per conductor. element_nomenclature_view counts the wires touching each
element with a correlated subquery, so without an index every element row
full-scans the conductor table and the cost grows as elements x conductors.
Measured on a standalone SQLite harness at 2000 elements x 5000 conductors:
2134 ms unindexed, 10 ms indexed. diagram_uuid is indexed too, since the
wiring list view joins on it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-21 19:26:40 +12:00

122 lines
3.5 KiB
C++

/*
Copyright 2006-2026 QElectroTech Team
This file is part of QElectroTech.
QElectroTech is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
QElectroTech is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PROJECTDATABASE_H
#define PROJECTDATABASE_H
#include <QObject>
#include <QSqlDatabase>
#include <QSqlQuery>
#include <QPointer>
#include <QFileDialog>
class Element;
class QETProject;
class Diagram;
class Conductor;
class Terminal;
class sqlite3;
/**
@brief The projectDataBase class
This class wraps a sqlite data base where you can find several things
about the content of a project.
*
@note this class is still in development.
*/
class projectDataBase : public QObject
{
Q_OBJECT
public:
projectDataBase(QETProject *project, QObject *parent = nullptr);
virtual ~projectDataBase() override;
void updateDB();
QETProject *project() const;
QSqlQuery newQuery(const QString &query = QString());
void addElement (Element *element);
void removeElement (Element *element);
void elementInfoChanged (Element *element);
void elementInfoChanged (QList<Element *> elements);
void addDiagram (Diagram *diagram);
void removeDiagram (Diagram *diagram);
void diagramInfoChanged (Diagram *diagram);
void diagramOrderChanged();
void addConductor (Conductor *conductor);
void removeConductor (Conductor *conductor);
void updateConductor (Conductor *conductor);
private slots:
//Refresh the sender()'s row after Conductor::setProperties().
void conductorPropertiesChanged();
public:
signals:
void dataBaseUpdated();
private:
bool createDataBase();
void createElementNomenclatureView();
void createSummaryView();
void populateDiagramTable();
void populateElementTable();
void populateElementInfoTable();
void populateDiagramInfoTable();
void populateConductorTable();
void bindConductorValues(QSqlQuery &query, Conductor *conductor, Diagram *diagram);
void watchConductor(Conductor *conductor);
void insertTerminal(Terminal *terminal);
void prepareQuery();
static QHash<QString, QString> elementInfoToString(
Element *elmt);
void bindDiagramInfoValues(QSqlQuery &query, Diagram *diagram);
private:
QPointer<QETProject> m_project;
QSqlDatabase m_data_base;
QSqlQuery m_insert_elements_query,
m_insert_element_info_query,
m_remove_element_query,
m_update_element_query,
m_insert_diagram_query,
m_remove_diagram_query,
m_insert_diagram_info_query,
m_update_diagram_info_query,
m_diagram_order_changed,
m_diagram_info_order_changed,
m_insert_terminal_query,
m_insert_conductor_query,
m_update_conductor_query,
m_remove_conductor_query;
#ifdef QET_EXPORT_PROJECT_DB
public:
static sqlite3 *sqliteHandle(QSqlDatabase *db);
static void exportDb(projectDataBase *db,
QWidget *parent = nullptr,
const QString &caption = QString(),
const QString &dir = QString());
#endif
};
#endif // PROJECTDATABASE_H