Nut/src/tablemodel.cpp

358 lines
9.0 KiB
C++

/**************************************************************************
**
** This file is part of Nut project.
** https://github.com/HamedMasafi/Nut
**
** Nut 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, either version 3 of the License, or
** (at your option) any later version.
**
** Nut 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 Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public License
** along with Nut. If not, see <http://www.gnu.org/licenses/>.
**
**************************************************************************/
#include <QtCore/QMetaObject>
#include <QtCore/QMetaProperty>
#include <QtCore/QDebug>
#include <QJsonArray>
#include <QJsonObject>
#include "tablemodel.h"
#include "defines_p.h"
QSet<TableModel*> TableModel::_allModels;
//QMap<int, TableScheema*> TableScheema::scheemas;
QString TableModel::name() const
{
return _name;
}
void TableModel::setName(const QString &name)
{
_name = name;
}
QString TableModel::className() const
{
return _className;
}
void TableModel::setClassName(const QString &className)
{
_className = className;
}
int TableModel::typeId() const
{
return _typeId;
}
void TableModel::setTypeId(const int &typeId)
{
_typeId = typeId;
}
FieldModel *TableModel::field(QString name) const
{
foreach (FieldModel *f, _fields)
if(f->name == name)
return f;
return 0;
}
QList<FieldModel *> TableModel::fields() const
{
return _fields;
}
QList<RelationModel *> TableModel::foregionKeys() const
{
return _foregionKeys;
}
QStringList TableModel::fieldsNames() const
{
QStringList ret;
foreach (FieldModel *f, _fields)
ret.append(f->name);
return ret;
}
TableModel *TableModel::findByTypeId(int typeId)
{
foreach (TableModel *model, _allModels)
if(model->typeId() == typeId)
return model;
return 0;
}
TableModel *TableModel::findByName(QString name)
{
foreach (TableModel *model, _allModels)
if(model->name() == name)
return model;
return 0;
}
TableModel *TableModel::findByClassName(QString className)
{
foreach (TableModel *model, _allModels)
if(model->className() == className)
return model;
return 0;
}
bool TableModel::operator ==(const TableModel &t) const{
if(_name != t.name())
return false;
if(fields().count() != t.fields().count())
return false;
foreach (FieldModel *f, _fields) {
FieldModel *tf = t.field(f->name);
if(!tf)
return false;
if(*f != *tf)
return false;
}
return true;
}
bool TableModel::operator !=(const TableModel &t) const
{
return !(*this == t);
}
TableModel::TableModel(int typeId, QString tableName)
{
const QMetaObject *tableMetaObject = QMetaType::metaObjectForType(typeId);
_typeId = typeId;
_name = tableName;
_className = tableMetaObject->className();
// get fields names
for(int j = 0; j < tableMetaObject->classInfoCount(); j++){
QString name = tableMetaObject->classInfo(j).name();
name = name.replace("\"", "");
name = name.remove(__nut_NAME_PERFIX);
if(name.contains(" ")){
QStringList parts = name.split(" ");
QString propName = parts.at(1);
if(propName == __nut_FIELD){
FieldModel *f = new FieldModel;
f->name = parts.at(0);
_fields.append(f);
}
}
}
// Browse all fields
for(int j = 1; j < tableMetaObject->propertyCount(); j++){
QMetaProperty fieldProperty = tableMetaObject->property(j);
FieldModel *fieldObj = field(fieldProperty.name());
foreach (FieldModel *f, _fields)
if(f->name == fieldProperty.name())
f = fieldObj;
if(!fieldObj)
continue;
fieldObj->type = fieldProperty.type();
}
// Browse class infos
for(int j = 0; j < tableMetaObject->classInfoCount(); j++){
QString name = tableMetaObject->classInfo(j).name();
QString value = tableMetaObject->classInfo(j).value();
name = name.replace("\"", "").remove(__nut_NAME_PERFIX);
value = value.replace("\"", "");
if(name.contains(" ")){
QStringList parts = name.split(" ");
QString propName = parts.at(1);
if(propName == __nut_FOREGION_KEY){
RelationModel *fk = new RelationModel;
fk->localColumn = parts.at(0);
fk->foregionColumn = value;
fk->className = value;
_foregionKeys.append(fk);
}
if(propName == __nut_FIELD){
}
FieldModel *f = field(parts.at(0));
if(!f)
continue;
if(propName == __nut_LEN)
f->length = value.toInt();
else if(propName == __nut_NOT_NULL)
f->notNull = false;
else if(propName == __nut_DEFAULT_VALUE)
f->defaultValue = value;
else if(propName == __nut_PRIMARY_KEY)
f->isPrimaryKey = true;
else if(propName == __nut_AUTO_INCREMENT)
f->isAutoIncrement = true;
else if(propName == __nut_UNIQUE)
f->isUnique = true;
}
}
_allModels.insert(this);
}
/*
"comment": {
"auto_increment": "id",
"fields": {
"id": {
"name": "id",
"type": "int"
},
"userId": {
"name": "userId",
"type": "int"
}
},
"primary_key": "id"
},
*/
TableModel::TableModel(QJsonObject json, QString tableName)
{
_name = tableName;
QJsonObject fields = json.value(__FIELDS).toObject();
foreach (QString key, fields.keys()) {
QJsonObject fieldObject = fields.value(key).toObject();
FieldModel *f = new FieldModel;
f->name = fieldObject.value(__NAME).toString();
f->type = QVariant::nameToType(fieldObject.value(__TYPE).toString().toLatin1().data());
if(fieldObject.contains(__nut_NOT_NULL))
f->notNull = fieldObject.value(__nut_NOT_NULL).toBool();
if(fieldObject.contains(__nut_LEN))
f->length = fieldObject.value(__nut_LEN).toInt();
if(fieldObject.contains(__nut_DEFAULT_VALUE))
f->defaultValue = fieldObject.value(__nut_DEFAULT_VALUE).toString();
_fields.append(f);
}
if(json.keys().contains(__nut_AUTO_INCREMENT))
field(json.value(__nut_AUTO_INCREMENT).toString())->isAutoIncrement = true;
if(json.keys().contains(__nut_PRIMARY_KEY))
field(json.value(__nut_PRIMARY_KEY).toString())->isAutoIncrement = true;
}
QJsonObject TableModel::toJson() const
{
QJsonObject obj;
QJsonObject fieldsObj;
foreach (FieldModel *f, _fields) {
QJsonObject fieldObj;
fieldObj.insert(__NAME, f->name);
fieldObj.insert(__TYPE, QVariant::typeToName(f->type));
if(f->length)
fieldObj.insert(__nut_LEN, f->length);
if(f->notNull)
fieldObj.insert(__nut_NOT_NULL, f->notNull);
if(!f->defaultValue.isNull())
fieldObj.insert(__nut_DEFAULT_VALUE, f->defaultValue);
fieldsObj.insert(f->name, fieldObj);
if(f->isAutoIncrement)
obj.insert(__nut_PRIMARY_KEY, f->name);
if(f->isPrimaryKey)
obj.insert(__nut_AUTO_INCREMENT, f->name);
}
obj.insert(__FIELDS, fieldsObj);
return obj;
}
//TableScheema *TableScheema::registerTable(int typeId, QString tableName)
//{
// TableScheema *scheema = new TableScheema(typeId, tableName);
// scheemas.insert(typeId, scheema);
// return scheema;
//}
//void TableScheema::createForegionKeys()
//{
// foreach (TableScheema *sch, scheemas) {
// foreach (ForegionKey *fk, sch->_foregionKeys) {
// fk->table = scheema(fk->tableName);
// }
// }
//}
TableModel *TableModel::model(QString className)
{
foreach (TableModel *s, _allModels)
if(s->_className == className)
return s;
return 0;
}
RelationModel *TableModel::foregionKey(QString otherTable) const
{
foreach (RelationModel *fk, _foregionKeys)
if(fk->className == otherTable)
return fk;
return 0;
}
QString TableModel::toString() const
{
QStringList sl;
foreach (FieldModel *f, _fields)
sl.append(f->name + " " + QVariant::typeToName(f->type));
QString ret = QString("%1 (%2)")
.arg(_name)
.arg(sl.join(", "));
return ret;
}
QString TableModel::primaryKey() const
{
foreach (FieldModel *f, _fields)
if(f->isPrimaryKey)
return f->name;
return QString::null;
}