127 lines
3.2 KiB
C++
127 lines
3.2 KiB
C++
/**************************************************************************
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**
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** This file is part of Nut project.
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** https://github.com/HamedMasafi/Nut
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**
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** Nut is free software: you can redistribute it and/or modify
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** it under the terms of the GNU Lesser General Public License as published by
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** the Free Software Foundation, either version 3 of the License, or
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** (at your option) any later version.
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**
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** Nut is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU Lesser General Public License for more details.
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**
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** You should have received a copy of the GNU Lesser General Public License
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** along with Nut. If not, see <http://www.gnu.org/licenses/>.
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**
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**************************************************************************/
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#include "postgresqlgenerator.h"
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#include "table.h"
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#include "tablemodel.h"
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NUT_BEGIN_NAMESPACE
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PostgreSqlGenerator::PostgreSqlGenerator(Database *parent) : SqlGeneratorBase (parent)
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{
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}
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QString PostgreSqlGenerator::fieldType(FieldModel *field)
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{
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QString dbType;
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switch (field->type) {
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case QVariant::Bool:
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dbType = "BOOLEAN";
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break;
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case QVariant::ByteArray:
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dbType = "BYTEA";
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break;
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case QVariant::Date:
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dbType = "DATE";
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break;
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case QVariant::DateTime:
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dbType = "TIMESTAMP";
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break;
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case QVariant::Time:
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dbType = "TIME";
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break;
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case QVariant::Int:
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case QVariant::UInt:
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if(field->isAutoIncrement)
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dbType = "SERIAL";
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else
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dbType = "INTEGER";
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break;
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case QVariant::ULongLong:
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case QVariant::LongLong:
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if(field->isAutoIncrement)
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dbType = "BIGSERIAL";
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else
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dbType = "BIGINTEGER";
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break;
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case QVariant::Double:
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dbType = "REAL";
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break;
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case QVariant::String:
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if(field->length)
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dbType = QString("VARCHAR(%1)").arg(field->length);
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else
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dbType = "TEXT";
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break;
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case QVariant::Point:
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case QVariant::PointF:
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dbType="POINT";
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break;
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case QVariant::Uuid:
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dbType = "UUID";
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break;
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case QVariant::Polygon:
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case QVariant::PolygonF:
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dbType = "POLYGON";
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break;
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default:
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qDebug() << "Type for " << (int)field->type << field->type << "(" << QMetaType::typeName(field->type) << ")" << "nut supported";
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dbType = "";
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}
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if(field->type == QMetaType::type("Nut::DbGeography"))
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dbType = "GEOGRAPHY";
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return dbType;
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}
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QString PostgreSqlGenerator::diff(FieldModel *oldField, FieldModel *newField)
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{
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QString sql = "";
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if(oldField && newField)
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if(*oldField == *newField)
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return QString::null;
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if(!newField){
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sql = "DROP COLUMN " + oldField->name;
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}else{
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if(oldField){
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sql = "ALTER COLUMN ";
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sql.append(newField->name + " TYPE " + fieldType(newField));
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} else {
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sql = "ADD COLUMN ";
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sql.append(fieldDeclare(newField));
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}
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}
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return sql;
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}
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NUT_END_NAMESPACE
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