|
/*
|
|
* Copyright (C) 2015 Christian Ehringfeld <c.ehringfeld@t-online.de>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation.
|
|
*
|
|
* This program 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 Lesser General Public License
|
|
* along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include "sqliteschema.h"
|
|
#include "../database.h"
|
|
#include <QSqlRecord>
|
|
#include <QSqlResult>
|
|
#include "sqlitequerybuilder.h"
|
|
using namespace CuteEntityManager;
|
|
|
|
SqliteSchema::SqliteSchema(QSharedPointer<Database> database) : Schema(
|
|
database) {
|
|
this->queryBuilder = QSharedPointer<QueryBuilder>(new SqliteQueryBuilder(
|
|
QSharedPointer<Schema>
|
|
(this), database));
|
|
}
|
|
|
|
SqliteSchema::~SqliteSchema() {
|
|
|
|
}
|
|
|
|
QSharedPointer<QHash<QString, QString>> SqliteSchema::getTypeMap() {
|
|
if (this->typeMap.data()->empty()) {
|
|
this->typeMap.data()->insert(TYPE_PK,
|
|
"integer PRIMARY KEY AUTOINCREMENT NOT NULL");
|
|
this->typeMap.data()->insert(TYPE_BIGPK,
|
|
"integer PRIMARY KEY AUTOINCREMENT NOT NULL");
|
|
this->typeMap.data()->insert(TYPE_BOOLEAN, "boolean");
|
|
this->typeMap.data()->insert(TYPE_SMALLINT, "smallint");
|
|
this->typeMap.data()->insert(TYPE_INTEGER, "integer");
|
|
this->typeMap.data()->insert(TYPE_BIGINT, "bigint");
|
|
this->typeMap.data()->insert(TYPE_FLOAT, "float");
|
|
this->typeMap.data()->insert(TYPE_DOUBLE, "double");
|
|
this->typeMap.data()->insert(TYPE_FLOAT, "real");
|
|
this->typeMap.data()->insert(TYPE_DECIMAL, "decimal(10,0)");
|
|
this->typeMap.data()->insert(TYPE_TEXT, "text");
|
|
this->typeMap.data()->insert(TYPE_STRING, "text");
|
|
this->typeMap.data()->insert(TYPE_CHAR, "char");
|
|
this->typeMap.data()->insert(TYPE_BINARY, "blob");
|
|
this->typeMap.data()->insert(TYPE_DATETIME, "datetime");
|
|
this->typeMap.data()->insert(TYPE_DATE, "date");
|
|
this->typeMap.data()->insert(TYPE_TIME, "time");
|
|
this->typeMap.data()->insert(TYPE_TIMESTAMP, "timestamp");
|
|
this->typeMap.data()->insert(TYPE_MONEY, "decimal(19,4)");
|
|
}
|
|
return this->typeMap;
|
|
}
|
|
|
|
QStringList SqliteSchema::findTableNames(QString schema) {
|
|
auto l = QStringList();
|
|
QString sql =
|
|
"SELECT DISTINCT tbl_name FROM sqlite_master WHERE tbl_name<>'sqlite_sequence' ORDER BY tbl_name";
|
|
auto q = this->database.data()->getQuery();
|
|
q.prepare(sql);
|
|
this->database.data()->select(q);
|
|
while (q.next()) {
|
|
l.append(q.value(0).toString());
|
|
}
|
|
return l;
|
|
}
|
|
|
|
QHash<QString, QStringList> SqliteSchema::findUniqueIndexes(
|
|
const QSharedPointer<TableSchema>
|
|
&table) {
|
|
QHash<QString, QStringList> uniqueIndexes = QHash<QString, QStringList>();
|
|
QSqlQuery q = this->database.data()->getQuery();
|
|
q.setForwardOnly(true);
|
|
q.exec("PRAGMA index_list(" + this->quoteSimpleTableName(
|
|
table->getName()) + ')');
|
|
while (q.next()) {
|
|
QString indexName = q.value("name").toString();
|
|
QSqlQuery q2 = this->database.data()->getQuery();
|
|
q2.setForwardOnly(true);
|
|
if (q.value("unique").toBool()) {
|
|
q2.exec("PRAGMA index_info(" + this->quoteSimpleTableName(indexName) + ")");
|
|
QStringList indexInfo = QStringList();
|
|
while (q2.next()) {
|
|
indexInfo.append(q2.value("name").toString());
|
|
}
|
|
uniqueIndexes.insert(indexName, indexInfo);
|
|
}
|
|
}
|
|
return uniqueIndexes;
|
|
}
|
|
|
|
void SqliteSchema::findConstraints(const QSharedPointer<TableSchema> &ts) {
|
|
QSqlQuery q = this->database.data()->getQuery();
|
|
q.setForwardOnly(true);
|
|
q.exec("PRAGMA foreign_key_list(" + this->quoteSimpleTableName(
|
|
ts.data()->getName()) + ')');
|
|
auto foreignKeys = ts.data()->getRelations();
|
|
while (q.next()) {
|
|
bool ok;
|
|
int id = q.value("id").toInt(&ok);
|
|
if (ok) {
|
|
auto rel = new QSqlRelation(q.value("table").toString(),
|
|
q.value("from").toString(),
|
|
q.value("to").toString());
|
|
auto ptr = QSharedPointer<QSqlRelation>(rel);
|
|
foreignKeys.insert(QString::number(id), ptr);
|
|
}
|
|
}
|
|
ts.data()->setRelations(foreignKeys);
|
|
}
|
|
|
|
bool SqliteSchema::findColumns(const QSharedPointer<TableSchema> &ts) {
|
|
QSqlQuery q = this->database.data()->getQuery();
|
|
q.setForwardOnly(true);
|
|
q.exec("SELECT * FROM " + this->quoteSimpleTableName(ts.data()->getName()) +
|
|
" LIMIT 0");
|
|
QHash<QString, QSharedPointer<QSqlField>> columns =
|
|
QHash<QString, QSharedPointer<QSqlField>>();
|
|
auto rec = q.record();
|
|
int count = rec.count();
|
|
if (count == 0) {
|
|
return false;
|
|
}
|
|
for (int var = 0; var < count; ++var) {
|
|
QSqlField f = rec.field(var);
|
|
columns.insert(f.name(), QSharedPointer<QSqlField>(new QSqlField(f)));
|
|
}
|
|
ts.data()->setColumns(columns);
|
|
return true;
|
|
}
|
|
|
|
QSharedPointer<TableSchema> SqliteSchema::loadTableSchema(QString name) {
|
|
auto table = new TableSchema();
|
|
auto ptr = QSharedPointer<TableSchema>(table);
|
|
table->setName(name);
|
|
table->setFullName(name);
|
|
if (this->findColumns(ptr)) {
|
|
this->findConstraints(ptr);
|
|
} else {
|
|
ptr.clear();
|
|
}
|
|
return ptr;
|
|
}
|