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.qetz format 3: one project database (stage D3a)

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project.sqlite now holds both what QElectroTech keeps in its project
database (the index D2 wrote as index.sqlite) and the document's
engineering data, the latter's tables named doc_<name> beside the
former's -- element, element_info, link and conductor exist in both
(QetContainerDb's SQL names them as before; Database::sql() puts the
prefix on). The manifest says format 3, min-reader 3: a format 2 reader
would find no tables of its names. Format 2 files, with or without an
index.sqlite entry, are read as before: the prefix is found from the
file (doc_meta).

A .qetz with an index opens from project.sqlite. Measured: the 136-folio
f2099 1.8 s, 5.2 MB (the two table sets still overlap: D3b).

Checked: tst_qetcontainer with the format 3 names, 34/34; a format 2 file
of the last commit opens from its index.sqlite and saves the same; corpus
342: 340 .qetz carry the index in project.sqlite and open from it, saved
back = eager = master on all 342. ctest 96/96 with and without
QET_LAZY_FOLIOS=1.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
ispyisail
2026-10-11 19:32:27 +13:00
parent e89ccf2a40
commit 2f98872d7a
6 changed files with 101 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files
sources/container/qetcontainerdb.cpp
+75 -31
View File
@@ -17,6 +17,8 @@
*/
#include "qetcontainerdb.h"
#include <QRegularExpression>
#include <QHash>
#include <QJsonArray>
#include <QJsonDocument>
@@ -103,14 +105,34 @@ QString schema()
.arg(columns(FolioData), columns(ElementData), columns(ConductorData));
}
//Owns an sqlite3 handle
//The tables of a document's engineering data. From format 3 on they are
//named doc_<name>, beside the project database's own tables in the same
//file (stage D3)
const QStringList DocTables = {
QStringLiteral("strip_bridge_terminal"), QStringLiteral("strip_bridge"),
QStringLiteral("strip_terminal"), QStringLiteral("terminal_strip"),
QStringLiteral("project_property"), QStringLiteral("folio_property"), QStringLiteral("folio"),
QStringLiteral("element_info"), QStringLiteral("element"), QStringLiteral("link"),
QStringLiteral("conductor"), QStringLiteral("meta")};
//Owns an sqlite3 handle; its SQL names the document's tables by their
//format 2 names, given their prefix here
class Database
{
public:
~Database() { if (m_db) sqlite3_close(m_db); }
sqlite3 *m_db = nullptr;
bool exec(const QString &sql) {
return sqlite3_exec(m_db, sql.toUtf8().constData(), nullptr, nullptr, nullptr) == SQLITE_OK;
QString m_prefix;
QString sql(const QString &text) const {
if (m_prefix.isEmpty()) return text;
static const QRegularExpression names(QStringLiteral("(?<![\"\\w])(%1)(?![\\w\"])")
.arg(DocTables.join(QLatin1Char('|'))));
QString out = text;
return out.replace(names, m_prefix + QStringLiteral("\\1"));
}
QString table(const QString &name) const { return m_prefix + name; }
bool exec(const QString &text) {
return sqlite3_exec(m_db, sql(text).toUtf8().constData(), nullptr, nullptr, nullptr) == SQLITE_OK;
}
QString error() const { return QString::fromUtf8(sqlite3_errmsg(m_db)); }
};
@@ -119,8 +141,8 @@ class Database
class Statement
{
public:
Statement(sqlite3 *db, const QString &sql) {
sqlite3_prepare_v2(db, sql.toUtf8().constData(), -1, &m_stmt, nullptr);
Statement(const Database &db, const QString &sql) {
sqlite3_prepare_v2(db.m_db, db.sql(sql).toUtf8().constData(), -1, &m_stmt, nullptr);
}
~Statement() { sqlite3_finalize(m_stmt); }
bool ok() const { return m_stmt; }
@@ -455,11 +477,16 @@ bool openDatabase(Database &db, const QByteArray &database, QString *error)
//read must be a plain table.
db.exec(QStringLiteral("PRAGMA trusted_schema = OFF"));
db.exec(QStringLiteral("PRAGMA query_only = ON"));
//Format 3 names the document's tables doc_<name>, format 2 not
{
Statement doc(db, QStringLiteral("SELECT count(*) FROM sqlite_master WHERE name = 'doc_meta'"));
if (doc.next() && doc.value(0).toInt() > 0) db.m_prefix = QStringLiteral("doc_");
}
for (const char *table : {"meta", "project_property", "folio", "folio_property",
"element", "element_info", "link", "conductor", "terminal_strip",
"strip_terminal", "strip_bridge", "strip_bridge_terminal"}) {
Statement kind(db.m_db, QStringLiteral("SELECT type FROM sqlite_master WHERE name = ?"));
kind.bind({QString::fromLatin1(table)});
Statement kind(db, QStringLiteral("SELECT type FROM sqlite_master WHERE name = ?"));
kind.bind({db.table(QString::fromLatin1(table))});
if (!kind.next() || kind.value(0).toString() != QLatin1String("table")) {
setError(error, QStringLiteral("the project database has no table %1").arg(QLatin1String(table)));
return false;
@@ -490,7 +517,7 @@ bool restoreDiagram(Database &db, QDomElement d, QString *error)
const QString id = d.attribute(FolioAttribute);
if (id.isEmpty()) return true;
d.removeAttribute(FolioAttribute);
Statement f(db.m_db, QStringLiteral("SELECT %1, props_at, props_attrs FROM folio WHERE id = ?")
Statement f(db, QStringLiteral("SELECT %1, props_at, props_attrs FROM folio WHERE id = ?")
.arg(QStringLiteral("\"") + FolioData.join(QStringLiteral("\", \"")) + QStringLiteral("\"")));
f.bind({id});
if (!f.next()) { setError(error, QStringLiteral("folio %1 is not in the database").arg(id)); return false; }
@@ -500,7 +527,7 @@ bool restoreDiagram(Database &db, QDomElement d, QString *error)
if (!values.at(FolioData.size()).isNull()) {
QDomElement props = document.createElement(QStringLiteral("properties"));
setAttributesJson(props, values.at(FolioData.size() + 1));
Statement p(db.m_db, QStringLiteral("SELECT name, value, attrs FROM folio_property WHERE folio_id = ? ORDER BY ord"));
Statement p(db, QStringLiteral("SELECT name, value, attrs FROM folio_property WHERE folio_id = ? ORDER BY ord"));
p.bind({id});
while (p.next())
props.appendChild(entry(p.value(0), QStringLiteral("name"), p.value(1), p.value(2),
@@ -517,7 +544,7 @@ bool restoreDiagram(Database &db, QDomElement d, QString *error)
if (!e.hasAttribute(KeyAttribute)) continue;
const QString key = e.attribute(KeyAttribute);
e.removeAttribute(KeyAttribute);
Statement s(db.m_db, QStringLiteral("SELECT %1, info_at, info_attrs, links_at, links_attrs FROM element WHERE key = ?")
Statement s(db, QStringLiteral("SELECT %1, info_at, info_attrs, links_at, links_attrs FROM element WHERE key = ?")
.arg(QStringLiteral("\"") + ElementData.join(QStringLiteral("\", \"")) + QStringLiteral("\"")));
s.bind({key});
if (!s.next()) { setError(error, QStringLiteral("symbol %1 is not in the database").arg(key)); return false; }
@@ -529,7 +556,7 @@ bool restoreDiagram(Database &db, QDomElement d, QString *error)
if (!v.at(n).isNull()) {
info = document.createElement(QStringLiteral("elementInformations"));
setAttributesJson(info, v.at(n + 1));
Statement i(db.m_db, QStringLiteral("SELECT name, value, attrs FROM element_info WHERE element_key = ? ORDER BY ord"));
Statement i(db, QStringLiteral("SELECT name, value, attrs FROM element_info WHERE element_key = ? ORDER BY ord"));
i.bind({key});
while (i.next())
info.appendChild(entry(i.value(0), QStringLiteral("name"), i.value(1), i.value(2),
@@ -539,7 +566,7 @@ bool restoreDiagram(Database &db, QDomElement d, QString *error)
if (!v.at(n + 2).isNull()) {
links = document.createElement(QStringLiteral("links_uuids"));
setAttributesJson(links, v.at(n + 3));
Statement l(db.m_db, QStringLiteral("SELECT linked_uuid, attrs FROM link WHERE element_key = ? ORDER BY ord"));
Statement l(db, QStringLiteral("SELECT linked_uuid, attrs FROM link WHERE element_key = ? ORDER BY ord"));
l.bind({key});
while (l.next())
links.appendChild(entry(l.value(0), QStringLiteral("uuid"), QVariant(), l.value(1),
@@ -558,7 +585,7 @@ bool restoreDiagram(Database &db, QDomElement d, QString *error)
if (!c.hasAttribute(KeyAttribute)) continue;
const QString key = c.attribute(KeyAttribute);
c.removeAttribute(KeyAttribute);
Statement s(db.m_db, QStringLiteral("SELECT %1 FROM conductor WHERE key = ?")
Statement s(db, QStringLiteral("SELECT %1 FROM conductor WHERE key = ?")
.arg(QStringLiteral("\"") + ConductorData.join(QStringLiteral("\", \"")) + QStringLiteral("\"")));
s.bind({key});
if (!s.next()) { setError(error, QStringLiteral("wire %1 is not in the database").arg(key)); return false; }
@@ -577,27 +604,44 @@ bool restoreDiagram(Database &db, QDomElement d, QString *error)
folios still in it) into a new database.
@return the database file, or an empty array with @p error set
*/
QByteArray QetContainerDb::extract(QDomElement project, QString *error)
QByteArray QetContainerDb::extract(QDomElement project, QString *error, const QByteArray &index)
{
Database db;
if (sqlite3_open(":memory:", &db.m_db) != SQLITE_OK || !db.exec(schema())) {
db.m_prefix = QStringLiteral("doc_");
if (sqlite3_open(":memory:", &db.m_db) != SQLITE_OK) {
setError(error, QStringLiteral("cannot create the project database"));
return {};
}
//The project database's own tables first, when given: one file
//holds both (stage D3)
if (!index.isEmpty()) {
unsigned char *copy = static_cast<unsigned char *>(sqlite3_malloc64(sqlite3_uint64(index.size())));
if (!copy) { setError(error, QStringLiteral("out of memory")); return {}; }
memcpy(copy, index.constData(), size_t(index.size()));
if (sqlite3_deserialize(db.m_db, "main", copy, index.size(), index.size(),
SQLITE_DESERIALIZE_FREEONCLOSE | SQLITE_DESERIALIZE_RESIZEABLE) != SQLITE_OK) {
setError(error, QStringLiteral("cannot read the project database's index"));
return {};
}
}
if (!db.exec(schema())) {
setError(error, QStringLiteral("cannot create the project database"));
return {};
}
db.exec(QStringLiteral("BEGIN"));
Statement meta(db.m_db, QStringLiteral("INSERT INTO meta VALUES (?,?)"));
Statement project_property(db.m_db, QStringLiteral("INSERT INTO project_property VALUES (?,?,?,?)"));
Statement folio(db.m_db, QStringLiteral("INSERT INTO folio VALUES (?,?,%1,?,?)").arg(placeholders(FolioData.size())));
Statement folio_property(db.m_db, QStringLiteral("INSERT INTO folio_property VALUES (?,?,?,?,?)"));
Statement element(db.m_db, QStringLiteral("INSERT INTO element VALUES (?,?,%1,?,?,?,?)").arg(placeholders(ElementData.size())));
Statement element_info(db.m_db, QStringLiteral("INSERT INTO element_info VALUES (?,?,?,?,?)"));
Statement link(db.m_db, QStringLiteral("INSERT INTO link VALUES (?,?,?,?)"));
Statement conductor(db.m_db, QStringLiteral("INSERT INTO conductor VALUES (?,?,%1)").arg(placeholders(ConductorData.size())));
Statement meta(db, QStringLiteral("INSERT INTO meta VALUES (?,?)"));
Statement project_property(db, QStringLiteral("INSERT INTO project_property VALUES (?,?,?,?)"));
Statement folio(db, QStringLiteral("INSERT INTO folio VALUES (?,?,%1,?,?)").arg(placeholders(FolioData.size())));
Statement folio_property(db, QStringLiteral("INSERT INTO folio_property VALUES (?,?,?,?,?)"));
Statement element(db, QStringLiteral("INSERT INTO element VALUES (?,?,%1,?,?,?,?)").arg(placeholders(ElementData.size())));
Statement element_info(db, QStringLiteral("INSERT INTO element_info VALUES (?,?,?,?,?)"));
Statement link(db, QStringLiteral("INSERT INTO link VALUES (?,?,?,?)"));
Statement conductor(db, QStringLiteral("INSERT INTO conductor VALUES (?,?,%1)").arg(placeholders(ConductorData.size())));
bool ok = meta.ok() && project_property.ok() && folio.ok() && folio_property.ok()
&& element.ok() && element_info.ok() && link.ok() && conductor.ok();
ok = ok && meta.run({QStringLiteral("format"), QStringLiteral("2")});
ok = ok && meta.run({QStringLiteral("format"), QStringLiteral("3")});
//<properties> of a block, as rows of @p rows (with @p prefix values)
auto moveProperties = [&](QDomElement block, Statement &rows, const QVariantList &prefix) {
@@ -709,10 +753,10 @@ QByteArray QetContainerDb::extract(QDomElement project, QString *error)
const QDomElement strips = project.firstChildElement(QStringLiteral("terminal_strips"));
StripRows strip_rows;
if (!strips.isNull() && stripRows(strips, &strip_rows)) {
Statement st(db.m_db, QStringLiteral("INSERT INTO terminal_strip VALUES (?,?,?,?,?,?,?)"));
Statement tt(db.m_db, QStringLiteral("INSERT INTO strip_terminal VALUES (?,?,?,?)"));
Statement bt(db.m_db, QStringLiteral("INSERT INTO strip_bridge VALUES (?,?,?,?)"));
Statement btt(db.m_db, QStringLiteral("INSERT INTO strip_bridge_terminal VALUES (?,?,?)"));
Statement st(db, QStringLiteral("INSERT INTO terminal_strip VALUES (?,?,?,?,?,?,?)"));
Statement tt(db, QStringLiteral("INSERT INTO strip_terminal VALUES (?,?,?,?)"));
Statement bt(db, QStringLiteral("INSERT INTO strip_bridge VALUES (?,?,?,?)"));
Statement btt(db, QStringLiteral("INSERT INTO strip_bridge_terminal VALUES (?,?,?)"));
for (const QVariantList &r : strip_rows.strips) ok = ok && st.run(r);
for (const QVariantList &r : strip_rows.terminals) ok = ok && tt.run(r);
for (const QVariantList &r : strip_rows.bridges) ok = ok && bt.run(r);
@@ -762,13 +806,13 @@ bool QetContainerDb::restore(QDomElement project, const QByteArray &database, QS
//Project properties
QHash<QString, QVariant> meta;
{
Statement s(db.m_db, QStringLiteral("SELECT key, value FROM meta"));
Statement s(db, QStringLiteral("SELECT key, value FROM meta"));
while (s.next()) meta.insert(s.value(0).toString(), s.value(1));
}
if (meta.contains(QStringLiteral("props_at"))) {
QDomElement props = document.createElement(QStringLiteral("properties"));
setAttributesJson(props, meta.value(QStringLiteral("props_attrs")));
Statement s(db.m_db, QStringLiteral("SELECT name, value, attrs FROM project_property ORDER BY ord"));
Statement s(db, QStringLiteral("SELECT name, value, attrs FROM project_property ORDER BY ord"));
while (s.next())
props.appendChild(entry(s.value(0), QStringLiteral("name"), s.value(1), s.value(2),
QStringLiteral("property")));
@@ -782,7 +826,7 @@ bool QetContainerDb::restore(QDomElement project, const QByteArray &database, QS
if (meta.contains(QStringLiteral("terminal_strips"))) {
StripRows rows;
auto read = [&db](const QString &sql, int columns, QList<QVariantList> *out) {
Statement s(db.m_db, sql);
Statement s(db, sql);
while (s.next()) {
QVariantList r;
for (int i = 0 ; i < columns ; ++i) r << s.value(i);