|
/*
|
|
* 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 <QMetaObject>
|
|
#include <QRegularExpression>
|
|
#include <QStringList>
|
|
#include "querybuilder.h"
|
|
#include "database.h"
|
|
#include "entity.h"
|
|
#include "entityinstancefactory.h"
|
|
#include "entityhelper.h"
|
|
#include "logger.h"
|
|
|
|
using namespace CuteEntityManager;
|
|
|
|
QueryBuilder::QueryBuilder(Schema *schema,
|
|
QSharedPointer<Database> &database) {
|
|
this->schema = schema;
|
|
this->database = database;
|
|
this->separator = " ";
|
|
}
|
|
|
|
QueryBuilder::~QueryBuilder() {
|
|
}
|
|
|
|
bool QueryBuilder::createTable(const QSharedPointer<Entity> &entity,
|
|
bool createRelationTables) const {
|
|
bool rc = false;
|
|
if (entity) {
|
|
auto tableDefinition = this->generateTableDefinition(entity);
|
|
QString tableName = entity->getTablename();
|
|
this->schema->containsTable(tableName) ? rc = true : rc = false;
|
|
if (!rc) {
|
|
QSqlQuery q = this->database->getQuery(this->createTable(tableName,
|
|
tableDefinition));
|
|
if (this->database->exec(q) && (!createRelationTables ||
|
|
this->createRelationTables(entity))) {
|
|
rc = true;
|
|
} else {
|
|
this->database->getLogger()->logMsg("Table " + entity->getTablename() +
|
|
" could not be created.", MsgType::WARNING);
|
|
}
|
|
this->schema->getTableSchema(tableName);
|
|
}
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
bool QueryBuilder::createRelationTables(const QSharedPointer<Entity> &entity)
|
|
const {
|
|
bool ok = true;
|
|
auto relTables = this->generateRelationTables(entity);
|
|
auto i = relTables.constBegin();
|
|
while (i != relTables.constEnd()) {
|
|
auto query = this->database->getQuery(this->createTable(i.key(), i.value()));
|
|
if (!this->database->exec(query)) {
|
|
ok = false;
|
|
this->database->getLogger()->logMsg("Relational table for table " +
|
|
entity->getTablename() +
|
|
" could not be created." + " Tablename:" + i.key(), MsgType::WARNING);
|
|
break;
|
|
}
|
|
++i;
|
|
}
|
|
return ok;
|
|
}
|
|
|
|
bool QueryBuilder::createIndices(const QSharedPointer<Entity> &entity) const {
|
|
bool ok = true;
|
|
QStringList queries = QStringList();
|
|
QString superIndex = this->createFkSuperClass(entity.data());
|
|
if (!superIndex.isEmpty()) {
|
|
queries.append(superIndex);
|
|
}
|
|
queries.append(this->relationFks(entity));
|
|
ok = this->database->transaction(queries);
|
|
return ok;
|
|
}
|
|
|
|
|
|
QStringList QueryBuilder::relationFks(const QSharedPointer<Entity> &entity)
|
|
const {
|
|
QStringList queries = QStringList();
|
|
if (this->supportsForeignKeys()) {
|
|
auto relations = EntityHelper::getNonInheritedRelations(entity.data());
|
|
auto props = EntityHelper::getMetaProperties(entity.data());
|
|
auto iterator = relations.constBegin();
|
|
while (iterator != relations.constEnd()) {
|
|
auto relation = iterator.value();
|
|
if (relation.getMappedBy().isEmpty() && !relation.getCascadeType().isEmpty()) {
|
|
QString update = relation.getCascadeType().contains(CascadeType::MERGE)
|
|
|| relation.getCascadeType().contains(CascadeType::ALL) ?
|
|
this->getForeignKeyCascade(
|
|
CASCADE) : this->getForeignKeyCascade(NO_ACTION);
|
|
QString remove = relation.getCascadeType().contains(CascadeType::REMOVE)
|
|
|| relation.getCascadeType().contains(CascadeType::ALL) ?
|
|
this->getForeignKeyCascade(
|
|
CASCADE) : this->getForeignKeyCascade(DbForeignKeyCascade::SET_NULL);
|
|
this->createRelationFK(queries, entity, relation,
|
|
props.value(relation.getPropertyName()), update, remove);
|
|
}
|
|
++iterator;
|
|
}
|
|
}
|
|
return queries;
|
|
}
|
|
|
|
bool QueryBuilder::supportsForeignKeys() const {
|
|
return true;
|
|
}
|
|
|
|
void QueryBuilder::createRelationFK(QStringList &queries,
|
|
const QSharedPointer<Entity> &entity, const Relation &relation,
|
|
const QMetaProperty &metaProperty, const QString &update,
|
|
const QString &remove) const {
|
|
auto ptr = QSharedPointer<Entity>
|
|
(EntityInstanceFactory::createInstance(metaProperty.type()));
|
|
if (ptr) {
|
|
if (relation.getType() == RelationType::ONE_TO_ONE
|
|
|| relation.getType() == RelationType::MANY_TO_ONE) {
|
|
QString indexName = this->generateIndexName(relation.getPropertyName(),
|
|
entity->getTablename(),
|
|
this->generateColumnNameID(relation.getPropertyName()),
|
|
ptr->getTablename(), true);
|
|
queries.append(this->addForeignKey(indexName, entity->getTablename(),
|
|
QStringList(this->generateColumnNameID(relation.getPropertyName())),
|
|
ptr->getTablename(),
|
|
QStringList(ptr->getPrimaryKey()), remove, update));
|
|
} else if (relation.getType() == RelationType::MANY_TO_MANY) {
|
|
QString tableName = this->generateManyToManyTableName(entity, ptr, relation);
|
|
queries.append(this->createForeignKeyManyToMany(tableName, entity, update,
|
|
remove));
|
|
queries.append(this->createForeignKeyManyToMany(tableName, ptr, update,
|
|
remove));
|
|
}
|
|
}
|
|
}
|
|
|
|
QString QueryBuilder::createForeignKeyManyToMany(const QString &tableName,
|
|
const QSharedPointer<Entity> &entity, const QString &update,
|
|
const QString &remove) const {
|
|
QString fkColumn = this->generateManyToManyColumnName(entity, "id");
|
|
QString indexName = this->generateIndexName(fkColumn,
|
|
tableName, fkColumn,
|
|
entity->getTablename(), true);
|
|
return this->addForeignKey(indexName, tableName, QStringList(fkColumn),
|
|
entity->getTablename(), QStringList(entity->getPrimaryKey()),
|
|
remove, update);
|
|
}
|
|
|
|
QString QueryBuilder::createTable(const QString &tableName,
|
|
const QHash<QString, QString> &tableDefinition) const {
|
|
return this->createTableQuery(tableName,
|
|
tableDefinition);
|
|
}
|
|
|
|
QString QueryBuilder::createFkSuperClass(const Entity *e) const {
|
|
QString r = "";
|
|
if (supportsForeignKeys()) {
|
|
auto superMetaObject = e->metaObject()->superClass();
|
|
if (e->getInheritanceStrategy() == InheritanceStrategy::JOINED_TABLE
|
|
&& QString(superMetaObject->className()) !=
|
|
this->entityClassname()) {
|
|
Entity *superClass = EntityInstanceFactory::createInstance(
|
|
superMetaObject->className());
|
|
if (superClass) {
|
|
QString refColumn = superClass->getPrimaryKey();
|
|
QString refTable = superClass->getTablename();
|
|
r = this->addForeignKey(this->generateIndexName(e->getPrimaryKey(),
|
|
e->getTablename(), refColumn, refTable, this->supportsForeignKeys()),
|
|
e->getTablename(),
|
|
QStringList(e->getPrimaryKey()), refTable, QStringList(refColumn),
|
|
this->getForeignKeyCascade(CASCADE),
|
|
this->getForeignKeyCascade(CASCADE));
|
|
delete superClass;
|
|
}
|
|
}
|
|
}
|
|
return r;
|
|
}
|
|
|
|
QString QueryBuilder::createTableQuery(const QString &tableName,
|
|
const QHash<QString, QString> &tableDefinition) const {
|
|
bool first = true;
|
|
QString s = "CREATE TABLE " + this->schema->quoteTableName(tableName) + " (";
|
|
auto i = tableDefinition.constBegin();
|
|
while (i != tableDefinition.constEnd()) {
|
|
if (first) {
|
|
first = false;
|
|
} else {
|
|
s += ", ";
|
|
}
|
|
s += this->schema->quoteColumnName(i.key()) + " " + this->getColumnType(i.value());
|
|
++i;
|
|
}
|
|
s += ");";
|
|
return s;
|
|
}
|
|
|
|
QString QueryBuilder::renameTable(QString tableName, QString newName) const {
|
|
return "RENAME TABLE " + this->schema->quoteTableName(
|
|
tableName) + " TO " +
|
|
this->schema->quoteTableName(
|
|
newName);
|
|
}
|
|
|
|
QString QueryBuilder::dropTable(QString tableName) const {
|
|
return "DROP TABLE " + this->schema->quoteTableName(tableName);
|
|
}
|
|
|
|
QString QueryBuilder::truncateTable(QString tableName) const {
|
|
return "TRUNCATE TABLE " + this->schema->quoteTableName(tableName);
|
|
}
|
|
|
|
QString QueryBuilder::addColumn(QString tableName, QString columnName,
|
|
QString columnType) const {
|
|
return "ALTER TABLE " + this->schema->quoteTableName(
|
|
tableName) + " ADD " +
|
|
this->schema->quoteColumnName(
|
|
columnName) + " " + this->getColumnType(columnType);
|
|
}
|
|
|
|
QString QueryBuilder::dropColumn(QString tableName, QString columName) const {
|
|
return "ALTER TABLE " + this->schema->quoteTableName(
|
|
tableName) + " DROP COLUMN " +
|
|
this->schema->quoteColumnName(columName);
|
|
}
|
|
|
|
QString QueryBuilder::renameColumn(QString tableName, QString oldName,
|
|
QString newName) const {
|
|
return "ALTER TABLE " + this->schema->quoteTableName(
|
|
tableName) + " RENAME COLUMN " +
|
|
this->schema->quoteColumnName(oldName) + " TO " +
|
|
this->schema->quoteColumnName(
|
|
newName);
|
|
}
|
|
|
|
QString QueryBuilder::alterColumn(QString tableName, QString columnName,
|
|
QString newType) const {
|
|
return "ALTER TABLE " + this->schema->quoteTableName(
|
|
tableName) + " CHANGE " +
|
|
this->schema->quoteColumnName(columnName) + " " +
|
|
this->schema->quoteColumnName(columnName) + this->getColumnType(newType);
|
|
}
|
|
|
|
QString QueryBuilder::addPrimaryKey(QString name, QString tableName,
|
|
QStringList columns) const {
|
|
return "ALTER TABLE " + this->schema->quoteTableName(
|
|
tableName) + " ADD CONSTRAINT " +
|
|
this->schema->quoteColumnName(name) + "PRIMARY KEY (" +
|
|
this->buildColumns(columns) + " )";
|
|
}
|
|
|
|
QString QueryBuilder::dropPrimaryKey(QString name, QString tableName) const {
|
|
return "ALTER TABLE " + this->schema->quoteTableName(
|
|
tableName) + " DROP CONSTRAINT " +
|
|
this->schema->quoteColumnName(name);
|
|
}
|
|
|
|
QString QueryBuilder::addForeignKey(QString name, QString tableName,
|
|
QStringList columns,
|
|
QString refTableName,
|
|
QStringList refColumns, QString deleteConstraint,
|
|
QString updateConstraint) const {
|
|
QString r = "ALTER TABLE " + this->schema->quoteTableName(
|
|
tableName) + "ADD CONSTRAINT " +
|
|
this->schema->quoteColumnName(name)
|
|
+ " FOREIGN KEY (" + this->buildColumns(columns) + ")" + " REFERENCES " +
|
|
this->schema->quoteTableName(
|
|
refTableName) +
|
|
" (" + this->buildColumns(refColumns) + ")";
|
|
if (!deleteConstraint.isEmpty()) {
|
|
r.append(" ON DELETE " + deleteConstraint);
|
|
}
|
|
if (!updateConstraint.isEmpty()) {
|
|
r.append(" ON UPDATE " + updateConstraint);
|
|
}
|
|
return r;
|
|
}
|
|
|
|
QString QueryBuilder::generateIndexName(const QString &name,
|
|
const QString &table, const QString &refColumn, const QString &refTable,
|
|
const bool fk) const {
|
|
return QString(fk ? "fk" : "idx").append("_").append(name).append(table).append(
|
|
refColumn).append(refTable);
|
|
}
|
|
|
|
QString QueryBuilder::generateColumnNameID(QString name) const {
|
|
return name.append(this->columnNameIDAppendix());
|
|
}
|
|
|
|
QString QueryBuilder::columnNameIDAppendix() const {
|
|
return "_id";
|
|
}
|
|
|
|
QString QueryBuilder::getForeignKeyCascade(DbForeignKeyCascade cascade) const {
|
|
QString r = "";
|
|
switch (cascade) {
|
|
case RESTRICT:
|
|
r = "RESTRICT";
|
|
break;
|
|
case CASCADE:
|
|
r = "CASCADE";
|
|
break;
|
|
case NO_ACTION:
|
|
r = "NO ACTION";
|
|
break;
|
|
case SET_DEFAULT:
|
|
r = "SET DEFAULT";
|
|
break;
|
|
case SET_NULL:
|
|
r = "SET NULL";
|
|
break;
|
|
}
|
|
return r;
|
|
}
|
|
|
|
QString QueryBuilder::dropForeignKey(QString name, QString tableName) const {
|
|
return "ALTER TABLE " + this->schema->quoteTableName(
|
|
tableName) + " DROP CONSTRAINT " +
|
|
this->schema->quoteColumnName(name);
|
|
}
|
|
|
|
QString QueryBuilder::createIndex(QString name, QString tableName,
|
|
QStringList columns,
|
|
bool unique) const {
|
|
QString s = (unique ? "CREATE UNIQUE INDEX " : "CREATE INDEX ") +
|
|
this->schema->quoteTableName(
|
|
name) + " ON " + this->schema->quoteTableName(tableName) + " (";
|
|
s.append(this->buildColumns(columns));
|
|
s.append(");");
|
|
return s;
|
|
}
|
|
|
|
QString QueryBuilder::dropIndex(QString name, QString tableName) const {
|
|
return "DROP INDEX " + this->schema->quoteTableName(name) + " ON " +
|
|
this->schema->quoteTableName(
|
|
tableName);
|
|
}
|
|
|
|
QSharedPointer<Database> QueryBuilder::getDatabase() const {
|
|
return this->database;
|
|
}
|
|
|
|
void QueryBuilder::setDatabase(const QSharedPointer<Database> &value) {
|
|
database = value;
|
|
}
|
|
|
|
QString QueryBuilder::buildCreateQuery(QHash<QString, QVariant>::const_iterator
|
|
i,
|
|
QHash<QString, QVariant>::const_iterator end,
|
|
QString &p1, QString &p2) const {
|
|
bool first = true;
|
|
while (i != end) {
|
|
if (!first) {
|
|
p1 += ",";
|
|
p2 += ",";
|
|
} else {
|
|
first = false;
|
|
}
|
|
p1 += this->schema->quoteColumnName(i.key());
|
|
p2 += this->placeHolder(i.key());
|
|
++i;
|
|
}
|
|
p1 += ")";
|
|
p2 += ");";
|
|
return p1 + p2;
|
|
}
|
|
|
|
QHash<QString, QString> QueryBuilder::generateTableDefinition(
|
|
const QSharedPointer<Entity> &entity)
|
|
const {
|
|
auto map = QHash<QString, QString>();
|
|
auto o = entity->metaObject();
|
|
auto superMetaObject = entity->metaObject()->superClass();
|
|
auto superMetaObjectPropertyMap = EntityHelper::getSuperMetaProperties(
|
|
entity.data());
|
|
QHash<QString, Relation> relations = entity->getRelations();
|
|
for (int var = 0; var < o->propertyCount(); ++var) {
|
|
auto m = o->property(var);
|
|
if ((!superMetaObjectPropertyMap.contains(QString(m.name()))
|
|
|| entity->getInheritanceStrategy() == InheritanceStrategy::PER_CLASS_TABLE)
|
|
&& m.name() != QString("objectName")
|
|
&& !entity->getTransientAttributes().contains(m.name())) {
|
|
if (m.isEnumType()) {
|
|
map.insert(m.name(), this->schema->getTypeMap()->value(
|
|
this->schema->TYPE_INTEGER));
|
|
} else if (relations.contains(m.name())) {
|
|
Relation r = relations.value(m.name());
|
|
if (r.getType() == RelationType::MANY_TO_ONE
|
|
|| (r.getType() == RelationType::ONE_TO_ONE
|
|
&& r.getMappedBy().isEmpty())) {
|
|
map.insert(this->generateColumnNameID(QString(m.name())),
|
|
this->schema->TYPE_BIGINT);
|
|
}
|
|
} else if (entity->getBLOBColumns().contains(m.name())) {
|
|
map.insert(m.name(), this->schema->getTypeMap()->value(
|
|
this->schema->TYPE_BINARY));
|
|
} else {
|
|
map.insert(m.name(), this->transformAbstractTypeToRealDbType(
|
|
this->transformTypeToAbstractDbType(
|
|
m.typeName())));
|
|
}
|
|
}
|
|
}
|
|
if (QString(superMetaObject->className()) ==
|
|
this->entityClassname()
|
|
|| entity->getInheritanceStrategy() == InheritanceStrategy::PER_CLASS_TABLE) {
|
|
map.insert(entity->getPrimaryKey(), this->schema->TYPE_BIGPK);
|
|
} else {
|
|
map.insert(entity->getPrimaryKey(), this->schema->TYPE_BIGINT);
|
|
}
|
|
return map;
|
|
}
|
|
|
|
/**
|
|
* @todo Fix TableName Generation with Inheritence
|
|
* @brief QueryBuilder::generateManyToManyTableName
|
|
* @param firstEntity
|
|
* @param secondEntity
|
|
* @param r
|
|
* @return
|
|
*/
|
|
QString QueryBuilder::generateManyToManyTableName(const QSharedPointer<Entity>
|
|
&firstEntity,
|
|
const QSharedPointer<Entity> &secondEntity, const Relation &r) const {
|
|
auto ptr = firstEntity;
|
|
QString attributeName = r.getPropertyName();
|
|
if (!r.getMappedBy().isEmpty()) {
|
|
ptr = secondEntity;
|
|
attributeName = r.getMappedBy();
|
|
}
|
|
auto obj = EntityHelper::getBaseClassObject(ptr, attributeName);
|
|
QString tblName = this->generateManyToManyTableName(obj->getTablename(), attributeName);
|
|
delete obj;
|
|
return tblName;
|
|
}
|
|
|
|
QString QueryBuilder::generateManyToManyTableName(const QString &tableName,
|
|
const QString &attribute) const {
|
|
return tableName + "_" + attribute;
|
|
}
|
|
|
|
QHash<QString, QHash<QString, QString>> QueryBuilder::generateRelationTables(
|
|
const QSharedPointer<Entity> &entity) const {
|
|
auto relations = QHash<QString, QHash<QString, QString>>();
|
|
QHash<QString, Relation> m = (entity->getInheritanceStrategy() ==
|
|
InheritanceStrategy::PER_CLASS_TABLE ? entity->getRelations() :
|
|
EntityHelper::getNonInheritedRelations(entity.data()));
|
|
auto props = EntityHelper::getMetaProperties(entity.data());
|
|
for (auto i = m.begin(); i != m.end(); ++i) {
|
|
Relation r = i.value();
|
|
if (r.getType() == RelationType::MANY_TO_MANY && r.getMappedBy().isEmpty()) {
|
|
QHash<QString, QString> h = QHash<QString, QString>();
|
|
h.insert(entity->getPrimaryKey(), this->schema->TYPE_BIGPK);
|
|
h.insert(this->generateManyToManyColumnName(entity, r.getPropertyName()),
|
|
this->schema->TYPE_BIGINT);
|
|
auto meta = props.value(r.getPropertyName());
|
|
QSharedPointer<Entity> ptr = QSharedPointer<Entity>
|
|
(EntityInstanceFactory::createInstance(EntityInstanceFactory::extractEntityType(
|
|
QMetaType::typeName(meta.userType()))));
|
|
h.insert(this->generateManyToManyColumnName(ptr, r.getMappedBy()),
|
|
this->schema->TYPE_BIGINT);
|
|
relations.insert(this->generateManyToManyTableName(entity, ptr, r), h);
|
|
}
|
|
}
|
|
return relations;
|
|
}
|
|
|
|
|
|
QString QueryBuilder::transformTypeToAbstractDbType(QString typeName) const {
|
|
auto m = this->schema->getAbstractTypeMap();
|
|
if (m->contains(typeName)) {
|
|
return m->value(typeName);
|
|
}
|
|
for (auto i = m->begin(); i != m->end(); ++i) {
|
|
if (i.key().contains(typeName)) {
|
|
return i.value();
|
|
}
|
|
}
|
|
return this->schema->TYPE_TEXT;
|
|
}
|
|
|
|
QString QueryBuilder::transformAbstractTypeToRealDbType(
|
|
QString typeName) const {
|
|
return this->schema->getTypeMap()->value(typeName);
|
|
}
|
|
|
|
QString QueryBuilder::getColumnType(const QString &type) const {
|
|
auto tMap = this->schema->getTypeMap();
|
|
if (tMap->contains(type)) {
|
|
return this->transformAbstractTypeToRealDbType(type);
|
|
}
|
|
QRegularExpression reg = QRegularExpression(
|
|
QRegularExpression::escape("/^(\\w+)\\((.+?)\\)(.*)$/"));
|
|
#if QT_VERSION >= QT_VERSION_CHECK(5, 4, 0)
|
|
reg.optimize();
|
|
#endif
|
|
QRegularExpressionMatchIterator i = reg.globalMatch(type, 0,
|
|
QRegularExpression::PartialPreferFirstMatch);
|
|
short s = 0;
|
|
QString before = "";
|
|
while (i.hasNext() && s < 2) {
|
|
before = i.next().captured();
|
|
if (tMap->contains(before)) {
|
|
return before.replace(QRegularExpression::escape("/\\(.+\\)/"),
|
|
"(" + i.next().captured() + ")");
|
|
}
|
|
s++;
|
|
}
|
|
reg = QRegularExpression(QRegularExpression::escape("/^(\\w+)\\s+/"));
|
|
i = reg.globalMatch(type, 0, QRegularExpression::PartialPreferFirstMatch);
|
|
if (i.hasNext()) {
|
|
return before.replace(QRegularExpression::escape("/^w+/"), i.next().captured());
|
|
}
|
|
return type;
|
|
}
|
|
|
|
QSqlQuery QueryBuilder::find(const qint64 &id, const QString &tableName) const {
|
|
QString pk = "id";
|
|
QSqlQuery q = this->database->getQuery(this->selectBase(QStringList(
|
|
tableName)) + " WHERE " + this->schema->quoteColumnName(
|
|
pk) + " = " + this->placeHolder(pk) + " LIMIT 1;");
|
|
this->bindValue(pk, id, q);
|
|
return q;
|
|
}
|
|
|
|
QString QueryBuilder::selectBase(const QStringList &tables,
|
|
const QStringList &columns, bool withKeyword) const {
|
|
QString r = "";
|
|
if(withKeyword) {
|
|
r = "SELECT ";
|
|
}
|
|
if (columns.isEmpty()) {
|
|
r += "*";
|
|
} else {
|
|
for (int var = 0; var < columns.size(); ++var) {
|
|
if (var != 0) {
|
|
r += " ";
|
|
}
|
|
r += this->schema->quoteColumnName(columns.at(var));
|
|
}
|
|
}
|
|
r += " " + this->fromKeyword();
|
|
for (int var = 0; var < tables.size(); ++var) {
|
|
r += " ";
|
|
r += this->schema->quoteTableName(tables.at(var));
|
|
}
|
|
return r;
|
|
}
|
|
|
|
QSqlQuery QueryBuilder::find(const qint64 &id,
|
|
const QSharedPointer<Entity> &entity, qint64 offset, QString pk) const {
|
|
QSqlQuery q = this->database->getQuery(this->selectBase(QStringList(
|
|
entity->getTablename())) + this->joinSuperClasses(
|
|
entity) + " WHERE " + this->schema->quoteColumnName(entity->getTablename() + "."
|
|
+ pk) + this->equalOperator() + " " + this->placeHolder(pk) + this->limit(1, offset));
|
|
this->bindValue(pk, id, q);
|
|
return q;
|
|
}
|
|
|
|
QSqlQuery QueryBuilder::findAll(const QSharedPointer<Entity> &entity,
|
|
const qint64 limit, qint64 offset) {
|
|
return this->database->getQuery(this->selectBase(QStringList(
|
|
entity->getTablename())) + " " + this->joinSuperClasses(
|
|
entity) + this->limit(limit, offset) + ";");
|
|
}
|
|
|
|
Query QueryBuilder::findByAttributes(const QHash<QString, QVariant> &m,
|
|
const QString &tableName,
|
|
const bool &ignoreID, const qint64 limit, const qint64 offset) const {
|
|
Query q = Query();
|
|
q.setSelect(QStringList(this->selectBase(QStringList(
|
|
tableName),QStringList(),false)));
|
|
q.appendWhere(Expression(this->where(m, this->andKeyword(), ignoreID, "id", false), m));
|
|
q.setLimit(limit);
|
|
q.setOffset(offset);
|
|
return q;
|
|
}
|
|
|
|
Query QueryBuilder::findByAttributes(const QSharedPointer<Entity> &e,
|
|
bool ignoreID,
|
|
const qint64 limit,
|
|
const qint64 offset) {
|
|
QHash<QString, QVariant> values = EntityHelper::getEntityAttributes(
|
|
EntityHelper::getMetaProperties(e.data()), e);
|
|
return this->findByAttributes(values, e->getTablename(), ignoreID, limit,
|
|
offset);
|
|
}
|
|
|
|
QSqlQuery QueryBuilder::findAll(const QString &tableName) const {
|
|
return this->database->getQuery(this->selectBase(QStringList(tableName)) + ";");
|
|
}
|
|
|
|
QList<QSqlQuery> QueryBuilder::remove(const QSharedPointer<Entity> &entity)
|
|
const {
|
|
QList<QSqlQuery> queries = QList<QSqlQuery>();
|
|
queries.append(this->remove(entity->getTablename(),
|
|
entity->getProperty(entity->getPrimaryKey()).toLongLong()));
|
|
if (entity->getInheritanceStrategy() != InheritanceStrategy::PER_CLASS_TABLE
|
|
&& entity->isInheritanceCascaded()) {
|
|
auto classes = EntityHelper::superClasses(entity.data(), true);
|
|
for (int var = 0; var < classes.size(); ++var) {
|
|
auto item = classes.at(var);
|
|
auto instance = EntityInstanceFactory::createInstance(item->className());
|
|
if (instance) {
|
|
queries.append(this->remove(instance->getTablename(),
|
|
entity->getProperty(entity->getPrimaryKey()).toLongLong()));
|
|
delete instance;
|
|
instance = 0;
|
|
}
|
|
}
|
|
}
|
|
return queries;
|
|
}
|
|
|
|
|
|
QSqlQuery QueryBuilder::remove(const QString &tableName,
|
|
const qint64 &id, const QString &primaryKey) const {
|
|
QSqlQuery q = this->database->getQuery("DELETE FROM " +
|
|
this->schema->quoteTableName(
|
|
tableName) + " WHERE " +
|
|
this->schema->quoteColumnName(primaryKey) + "=" + this->placeHolder(
|
|
primaryKey) + ";");
|
|
this->bindValue(primaryKey, id, q);
|
|
return q;
|
|
}
|
|
|
|
QSqlQuery QueryBuilder::findId(const QSharedPointer<Entity> &entity) const {
|
|
QHash<QString, QVariant> values = EntityHelper::getEntityAttributes(
|
|
EntityHelper::getMetaProperties(entity.data()),
|
|
entity);
|
|
QSqlQuery q = this->database->getQuery(this->selectBase(QStringList(
|
|
entity->getTablename()),
|
|
QStringList(entity->getPrimaryKey())) + this->where(values,
|
|
this->andKeyword(), true) + " LIMIT 1");
|
|
this->bindValues(values, q);
|
|
return q;
|
|
}
|
|
|
|
QSqlQuery QueryBuilder::count(const QString &tableName) const {
|
|
QSqlQuery q = this->database->getQuery(this->selectBase(QStringList(
|
|
tableName), QStringList(this->countFunction())) + ";");
|
|
return q;
|
|
}
|
|
|
|
QList<QSqlQuery> QueryBuilder::merge(const QSharedPointer<Entity> &entity)
|
|
const {
|
|
return this->createOrMerge(entity, false);
|
|
}
|
|
|
|
|
|
QList<QSqlQuery> QueryBuilder::createOrMerge(const QSharedPointer<Entity>
|
|
&entity, bool insert) const {
|
|
const QList<ClassAttributes> attrs = this->inheritedAttributes(entity);
|
|
auto queries = QList<QSqlQuery>();
|
|
bool first = true;
|
|
for (int var = 0; var < attrs.size(); ++var) {
|
|
auto attr = attrs.at(var);
|
|
auto attrHash = attr.getAttributes();
|
|
queries.append(insert ? this->insert(attr.getName(), attrHash,
|
|
attr.getPk(), !first) : this->update(attr.getName(), attrHash, attr.getPk()));
|
|
if (first) {
|
|
first = false;
|
|
}
|
|
}
|
|
return queries;
|
|
}
|
|
|
|
QList<QSqlQuery> QueryBuilder::create(const QSharedPointer<Entity> &entity)
|
|
const {
|
|
return this->createOrMerge(entity, true);
|
|
}
|
|
|
|
QSqlQuery QueryBuilder::removeAll(const QString &tableName) const {
|
|
return this->database->getQuery(this->truncateTable(tableName));
|
|
}
|
|
|
|
QSqlQuery QueryBuilder::insert(const QString &tableName,
|
|
QHash<QString, QVariant> &attributes, const QString &primaryKey,
|
|
bool withId) const {
|
|
if (!withId) {
|
|
attributes.remove(primaryKey);
|
|
}
|
|
QSqlQuery q = this->database->getQuery();
|
|
QString p1 = "INSERT INTO " + this->schema->quoteTableName(
|
|
tableName) + "(";
|
|
QString p2 = "VALUES(";
|
|
if (!attributes.isEmpty()) {
|
|
q.prepare(this->buildCreateQuery(attributes.constBegin(), attributes.constEnd(),
|
|
p1, p2));
|
|
}
|
|
this->bindValues(attributes, q);
|
|
return q;
|
|
}
|
|
|
|
QSqlQuery QueryBuilder::update(const QString &tableName,
|
|
QHash<QString, QVariant> &attributes, const QString &primaryKey) const {
|
|
QVariant pk = attributes.value(primaryKey);
|
|
attributes.remove(primaryKey);
|
|
QSqlQuery q = this->database->getQuery("UPDATE " + this->schema->quoteTableName(
|
|
tableName) + " SET " + this->attributes(attributes,
|
|
false) + " " + this->whereKeyword()
|
|
+ " " +
|
|
this->schema->quoteColumnName(primaryKey) + " = " + this->placeHolder(
|
|
primaryKey) + ";");
|
|
this->bindValues(attributes, q);
|
|
this->bindValue(primaryKey, pk, q);
|
|
return q;
|
|
}
|
|
|
|
|
|
Query QueryBuilder::oneToMany(const QString &tableName,
|
|
const QString &attribute,
|
|
const qint64 &id,
|
|
const qint64 &limit) {
|
|
QHash<QString, QVariant> values = QHash<QString, QVariant>();
|
|
values.insert(attribute, id);
|
|
return this->findByAttributes(values, tableName, false, limit);
|
|
}
|
|
|
|
QSqlQuery QueryBuilder::manyToMany(const QString &tableName,
|
|
const QString &attribute,
|
|
const qint64 &id) {
|
|
QSqlQuery q = this->database->getQuery();
|
|
QString sql = this->selectBase(QStringList(tableName), QStringList("*"));
|
|
QString pk = "id";
|
|
sql += " " + this->whereKeyword() + " ";
|
|
sql += this->schema->quoteColumnName(
|
|
attribute);
|
|
sql += " " + this->equalOperator() + " " + this->placeHolder(pk) + ";";
|
|
q.prepare(sql);
|
|
this->bindValue(pk, id, q);
|
|
return q;
|
|
}
|
|
|
|
QSqlQuery QueryBuilder::manyToManyDelete(const QString &tableName,
|
|
const QString &attribute, const qint64 &id) {
|
|
QSqlQuery q = this->database->getQuery();
|
|
QString pkCol = "id";
|
|
QString sql = "DELETE FROM " + this->schema->quoteTableName(
|
|
tableName) + " WHERE " + this->schema->quoteColumnName(
|
|
attribute) + this->equalOperator() + this->placeHolder(pkCol);
|
|
q.prepare(sql);
|
|
this->bindValue(pkCol, id, q);
|
|
return q;
|
|
}
|
|
|
|
QSqlQuery QueryBuilder::manyToManyInsert(const QString &tableName,
|
|
const QString &col1, const QString &col2) const {
|
|
QSqlQuery q = this->database->getQuery();
|
|
QString sql = "INSERT INTO " + this->schema->quoteTableName(
|
|
tableName) + "(" + col1 + "," + col2 + ")"
|
|
+ "VALUES(?, ?);";
|
|
q.prepare(sql);
|
|
return q;
|
|
}
|
|
|
|
QString QueryBuilder::superClassColumnName(const QMetaObject *&superMeta)
|
|
const {
|
|
return QString(superMeta->className()).toLower();
|
|
}
|
|
|
|
QString QueryBuilder::addWildcard(QVariant var, JokerPosition jp,
|
|
QChar jokerChar) const {
|
|
QString val = var.toString();
|
|
if (!val.isEmpty()) {
|
|
switch (jp) {
|
|
case JokerPosition::BEHIND:
|
|
val += jokerChar;
|
|
break;
|
|
case JokerPosition::BOTH:
|
|
val = jokerChar + val + jokerChar;
|
|
break;
|
|
case JokerPosition::FRONT:
|
|
val = jokerChar + val;
|
|
break;
|
|
case JokerPosition::NONE:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return val;
|
|
}
|
|
|
|
QString QueryBuilder::countFunction(const QString &distinctColumn) const {
|
|
return QString(this->countKeyword() + "(" + (distinctColumn.isEmpty() ? "*" :
|
|
(this->distinct() +
|
|
this->schema->quoteColumnName(distinctColumn))) + ")");
|
|
}
|
|
|
|
QString QueryBuilder::distinct() const {
|
|
return "DISTINCT";
|
|
}
|
|
|
|
QString QueryBuilder::notKeyword() const {
|
|
return "NOT";
|
|
}
|
|
|
|
QString QueryBuilder::between() const {
|
|
return "BETWEEN";
|
|
}
|
|
|
|
QString QueryBuilder::andKeyword() const {
|
|
return "AND";
|
|
}
|
|
|
|
QString QueryBuilder::orKeyword() const {
|
|
return "OR";
|
|
}
|
|
|
|
QString QueryBuilder::inKeyword() const {
|
|
return "IN";
|
|
}
|
|
|
|
QString QueryBuilder::whereKeyword() const {
|
|
return "WHERE";
|
|
}
|
|
|
|
QString QueryBuilder::countKeyword() const {
|
|
return "COUNT";
|
|
}
|
|
|
|
QString QueryBuilder::notEqualOperator() const {
|
|
return "!=";
|
|
}
|
|
|
|
QString QueryBuilder::equalOperator() const {
|
|
return "=";
|
|
}
|
|
|
|
QString QueryBuilder::fromKeyword() const {
|
|
return "FROM";
|
|
}
|
|
|
|
QString QueryBuilder::isNullKeywords() const {
|
|
return "IS NULL";
|
|
}
|
|
|
|
QString QueryBuilder::isNotNullKeywords() const {
|
|
return "IS NOT NULL";
|
|
}
|
|
|
|
Expression QueryBuilder::inFunction(QString column,
|
|
QList<QVariant> values, bool notOp) const {
|
|
QString condition = "";
|
|
Expression exp = Expression();
|
|
if (!values.isEmpty()) {
|
|
bool first = true;
|
|
condition = this->schema->quoteColumnName(column) + " " + this->appendNot(
|
|
notOp) + this->inKeyword() +
|
|
" (";
|
|
for (int var = 0; var < values.size(); ++var) {
|
|
if (first) {
|
|
first = false;
|
|
} else {
|
|
condition += ", ";
|
|
}
|
|
QString paramName = column + "_in" + var;
|
|
condition += this->placeHolder(paramName);
|
|
exp.appendParam(paramName, values.at(var));
|
|
}
|
|
condition += ")";
|
|
}
|
|
exp.setExpression(condition);
|
|
return exp;
|
|
}
|
|
|
|
QString QueryBuilder::between(QString colName, QString valName1,
|
|
QString valName2, bool notOp) const {
|
|
return "(" + this->schema->quoteColumnName(colName) + (notOp ? (" " +
|
|
this->notKeyword() + " ") : " ") + this->between() +
|
|
" " + this->placeHolder(valName1) + " " + this->andKeyword() + " " +
|
|
this->placeHolder(valName2) + ")";
|
|
}
|
|
|
|
QString QueryBuilder::likeKeyword() const {
|
|
return "LIKE";
|
|
}
|
|
|
|
QString QueryBuilder::limitKeyword() const {
|
|
return "LIMIT";
|
|
}
|
|
|
|
QString QueryBuilder::offsetKeyword() const {
|
|
return "OFFSET";
|
|
}
|
|
|
|
QString QueryBuilder::appendNot(bool notOp) const {
|
|
return (notOp ? (this->notKeyword() + " ") : "");
|
|
}
|
|
|
|
QString QueryBuilder::entityClassname() const {
|
|
return QString("CuteEntityManager::Entity");
|
|
}
|
|
|
|
Schema *QueryBuilder::getSchema() const {
|
|
return schema;
|
|
}
|
|
|
|
QStringList QueryBuilder::quoteTableNames(const QStringList &tables) {
|
|
QStringList r = QStringList();
|
|
for (int i = 0; i < tables.size(); ++i) {
|
|
r.append(this->schema->quoteTableName(tables.at(i)));
|
|
}
|
|
return r;
|
|
}
|
|
|
|
QString QueryBuilder::getSeparator() const {
|
|
return separator;
|
|
}
|
|
|
|
void QueryBuilder::setSeparator(const QString &value) {
|
|
separator = value;
|
|
}
|
|
|
|
|
|
QString QueryBuilder::limit(const quint64 &limit, const quint64 &offset,
|
|
bool withSpace) const {
|
|
QString s = "";
|
|
if (limit > 0) {
|
|
s.append((withSpace ? " " : "") + this->limitKeyword() + " ").append(
|
|
QString::number(limit));
|
|
}
|
|
if (offset > 0) {
|
|
s.append((withSpace ? " " : "") + this->offsetKeyword() + " ").append(
|
|
QString::number(offset));
|
|
}
|
|
return s;
|
|
}
|
|
|
|
QString QueryBuilder::generateManyToManyColumnName(const QSharedPointer<Entity>
|
|
&entity, QString attribute) const {
|
|
if (entity) {
|
|
auto obj = EntityHelper::getBaseClassObject(entity, attribute);
|
|
QString tblName = obj->getTablename();
|
|
delete obj;
|
|
return this->generateColumnNameID(tblName);
|
|
}
|
|
this->database->getLogger()->logMsg("Entity is empty!", MsgType::WARNING);
|
|
return "";
|
|
}
|
|
|
|
QSqlQuery QueryBuilder::getQuery() const {
|
|
return this->database->getQuery();
|
|
}
|
|
|
|
|
|
QHash<QString, QVariant> QueryBuilder::saveAttributes(const
|
|
QSharedPointer<Entity> &entity, QHash<QString, QMetaProperty> props,
|
|
QHash<QString, Relation> relations) const {
|
|
if (props.isEmpty()) {
|
|
props = EntityHelper::getMetaProperties(entity.data());
|
|
}
|
|
auto values = EntityHelper::getEntityAttributes(props, entity);
|
|
auto relValues = this->getManyToOneAttributes(props, entity, relations);
|
|
auto iterator = relValues.constBegin();
|
|
while (iterator != relValues.constEnd()) {
|
|
values.insert(iterator.key(), iterator.value());
|
|
++iterator;
|
|
}
|
|
return values;
|
|
}
|
|
|
|
QHash<QString, QMetaProperty> QueryBuilder::processProperties(
|
|
const QSharedPointer<Entity> &e,
|
|
QHash<QString, QMetaProperty> &usedProperties) const {
|
|
auto properties = EntityHelper::getMetaProperties(e.data());
|
|
QMutableHashIterator<QString, QMetaProperty> i(properties);
|
|
while (i.hasNext()) {
|
|
i.next();
|
|
if (usedProperties.contains(i.key()) && i.key() != e->getPrimaryKey()) {
|
|
properties.remove(i.key());
|
|
} else {
|
|
usedProperties.insert(i.key(), i.value());
|
|
}
|
|
}
|
|
return properties;
|
|
}
|
|
|
|
QHash<QString, Relation> QueryBuilder::processRelations(
|
|
const QSharedPointer<Entity> &e,
|
|
QHash<QString, Relation> &usedRelations) const {
|
|
auto relations = e->getRelations();
|
|
auto i = QMutableHashIterator<QString, Relation>(relations);
|
|
while (i.hasNext()) {
|
|
i.next();
|
|
if (usedRelations.contains(i.key())) {
|
|
relations.remove(i.key());
|
|
} else {
|
|
usedRelations.insert(i.key(), i.value());
|
|
}
|
|
}
|
|
return relations;
|
|
}
|
|
|
|
QList<QueryBuilder::ClassAttributes> QueryBuilder::inheritedAttributes(
|
|
const QSharedPointer<Entity> &entity) const {
|
|
auto list = QList<QueryBuilder::ClassAttributes>();
|
|
if (entity->getInheritanceStrategy() == InheritanceStrategy::JOINED_TABLE) {
|
|
auto classes = QList<const QMetaObject *>();
|
|
classes.append(entity->metaObject());
|
|
classes.append(EntityHelper::superClasses(entity.data(), true));
|
|
auto usedProperties = QHash<QString, QMetaProperty>();
|
|
auto usedRelations = QHash<QString, Relation>();
|
|
QSharedPointer<Entity> e;
|
|
for (int var = classes.size() - 1; var >= 0; --var) {
|
|
auto metaObj = classes.at(var);
|
|
e = QSharedPointer<Entity>(EntityInstanceFactory::createInstance(metaObj));
|
|
if (e) {
|
|
list.append(QueryBuilder::ClassAttributes(e->getTablename(),
|
|
this->saveAttributes(entity, this->processProperties(e, usedProperties),
|
|
this->processRelations(e, usedRelations)), e->getPrimaryKey()));
|
|
} else {
|
|
this->database->getLogger()->logMsg("Instance of " + QString(
|
|
metaObj->className()) +
|
|
" could not be created", MsgType::CRITICAL);
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
list.append(QueryBuilder::ClassAttributes(entity->getTablename(),
|
|
this->saveAttributes(entity), entity->getPrimaryKey()));
|
|
}
|
|
return list;
|
|
}
|
|
|
|
QString QueryBuilder::leftJoin(const QString &foreignTable,
|
|
const QString &tableName, const QString &foreignKey,
|
|
const QString &primaryKey, bool onlyCondition) const {
|
|
return (!onlyCondition ? ("LEFT JOIN " + this->schema->quoteTableName(
|
|
foreignTable) + " ON ") : "") +
|
|
this->schema->quoteColumnName(foreignTable + "." + primaryKey) + "=" +
|
|
this->schema->quoteColumnName(
|
|
tableName + "." + foreignKey);
|
|
}
|
|
|
|
QHash<QString, QVariant> QueryBuilder::getManyToOneAttributes(
|
|
QHash<QString, QMetaProperty>
|
|
props,
|
|
const QSharedPointer<Entity> &entity,
|
|
QHash<QString, Relation> relations) const {
|
|
auto map = QHash<QString, QVariant>();
|
|
if (relations.isEmpty()) {
|
|
relations = entity->getRelations();
|
|
}
|
|
auto i = relations.constBegin();
|
|
while (i != relations.constEnd()) {
|
|
Relation r = i.value();
|
|
if ((r.getType() == RelationType::MANY_TO_ONE && props.contains(i.key()))
|
|
|| (r.getType() == RelationType::ONE_TO_ONE && r.getMappedBy().isEmpty())) {
|
|
auto v = props.value(i.key()).read(entity.data());
|
|
if (v.isValid()) {
|
|
QSharedPointer<Entity> e = EntityInstanceFactory::castQVariant(v);
|
|
if (e) {
|
|
this->insertRelationId(e.data(), map, i.key());
|
|
}
|
|
}
|
|
}
|
|
++i;
|
|
}
|
|
return map;
|
|
}
|
|
|
|
void QueryBuilder::insertRelationId(const Entity *e,
|
|
QHash<QString, QVariant> &map,
|
|
QString relName) const {
|
|
if (e && e->getProperty(e->getPrimaryKey()).toLongLong() > -1) {
|
|
map.insert(this->generateColumnNameID(relName),
|
|
e->getProperty(e->getPrimaryKey()));
|
|
}
|
|
}
|
|
|
|
QString QueryBuilder::buildColumns(const QStringList &columns) const {
|
|
QString r = "";
|
|
bool first = true;
|
|
for (int var = 0; var < columns.size(); ++var) {
|
|
if (!first) {
|
|
r.append(",");
|
|
} else {
|
|
first = false;
|
|
}
|
|
r.append(columns.at(var));
|
|
}
|
|
return r;
|
|
}
|
|
|
|
void QueryBuilder::bindValues(const QHash<QString, QVariant> &h, QSqlQuery &q,
|
|
bool ignoreID, const QString &primaryKey) const {
|
|
QHash<QString, QVariant>::const_iterator i = h.constBegin();
|
|
while (i != h.constEnd()) {
|
|
if ((!ignoreID || !(i.key() == primaryKey))
|
|
&& !i.value().isNull()) {
|
|
this->bindValue(i.key(), i.value(), q);
|
|
}
|
|
++i;
|
|
}
|
|
}
|
|
|
|
void QueryBuilder::bindValue(const QString &key, const QVariant &value,
|
|
QSqlQuery &q) const {
|
|
q.bindValue(this->placeHolder(key), value);
|
|
}
|
|
|
|
QString QueryBuilder::placeHolder(QString key) const {
|
|
return QString(":" + key.replace('.', '_'));
|
|
}
|
|
|
|
QString QueryBuilder::where(const QHash<QString, QVariant> &m,
|
|
const QString &conjunction,
|
|
bool ignoreID, const QString &primaryKey, bool withKeyword) const {
|
|
if (m.size() == 0 || (ignoreID && m.contains(primaryKey) && m.size() == 1)) {
|
|
return "";
|
|
}
|
|
return (withKeyword ? " WHERE " : "") + this->attributes(m, true, conjunction,
|
|
ignoreID, primaryKey);
|
|
}
|
|
|
|
QString QueryBuilder::where(const QString &key, const QVariant &var, bool withKeyword,
|
|
bool select, bool notEqual) const {
|
|
QString r = (withKeyword ? " WHERE " : "");
|
|
r += this->schema->quoteColumnName(key) + (var.isNull() && select
|
|
? (" " + (notEqual ? this->isNotNullKeywords() : this->isNullKeywords()))
|
|
: (notEqual ? this->notEqualOperator() : this->equalOperator() ) + this->placeHolder(
|
|
key));
|
|
return r;
|
|
}
|
|
|
|
QString QueryBuilder::attributes(const QHash<QString, QVariant> &m, bool select,
|
|
const QString &conjunction,
|
|
bool ignoreID, const QString &primaryKey) const {
|
|
QString rc = "";
|
|
for (auto i = m.constBegin(); i != m.constEnd(); ++i) {
|
|
if (!ignoreID || i.key() != primaryKey) {
|
|
if (!rc.isEmpty()) {
|
|
rc += " " + conjunction + " ";
|
|
}
|
|
rc += this->where(i.key(), i.value(), false, select);
|
|
}
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
QueryBuilder::ClassAttributes::ClassAttributes(const QString name,
|
|
const QHash<QString, QVariant> attributes, QString pk) {
|
|
this->name = name;
|
|
this->attributes = attributes;
|
|
this->pk = pk;
|
|
}
|
|
|
|
QString QueryBuilder::ClassAttributes::getName() const {
|
|
return name;
|
|
}
|
|
|
|
void QueryBuilder::ClassAttributes::setName(const QString &value) {
|
|
name = value;
|
|
}
|
|
|
|
QHash<QString, QVariant> QueryBuilder::ClassAttributes::getAttributes() const {
|
|
return attributes;
|
|
}
|
|
|
|
void QueryBuilder::ClassAttributes::setAttributes(const QHash<QString, QVariant>
|
|
&value) {
|
|
attributes = value;
|
|
}
|
|
|
|
QString QueryBuilder::ClassAttributes::getPk() const {
|
|
return pk;
|
|
}
|
|
|
|
void QueryBuilder::ClassAttributes::setPk(const QString &value) {
|
|
pk = value;
|
|
}
|
|
|
|
Expression QueryBuilder::andOperator(QHash<QString, QVariant> conditions)
|
|
const {
|
|
bool first = true;
|
|
Expression exp = Expression();
|
|
QString condition = "";
|
|
for (auto var = conditions.constBegin(); var != conditions.constEnd(); ++var) {
|
|
if (first) {
|
|
first = false;
|
|
} else {
|
|
condition += " " + this->andKeyword() + " ";
|
|
}
|
|
condition += this->schema->quoteColumnName(var.key()) + " = " +
|
|
this->placeHolder(var.key());
|
|
exp.appendParam(var.key(), var.value());
|
|
}
|
|
exp.setExpression(condition);
|
|
return exp;
|
|
}
|
|
|
|
Expression QueryBuilder::andOperator() const {
|
|
return this->plainAnd();
|
|
}
|
|
|
|
Expression QueryBuilder::nandOperator() const {
|
|
return this->plainNand();
|
|
}
|
|
|
|
Expression QueryBuilder::arbitraryOperator(QString op, QString column,
|
|
QVariant value) const {
|
|
Expression exp = Expression(this->schema->quoteColumnName(
|
|
column) + " " + op + " " +
|
|
this->placeHolder(column));
|
|
exp.appendParam(column, value);
|
|
return exp;
|
|
}
|
|
|
|
Expression QueryBuilder::isNull(QString column) const {
|
|
return Expression(this->schema->quoteColumnName(column) + this->isNullKeywords());
|
|
}
|
|
|
|
Expression QueryBuilder::isNotNull(QString column) const {
|
|
return Expression(this->schema->quoteColumnName(column) + this->isNotNullKeywords());
|
|
}
|
|
|
|
Expression QueryBuilder::plainOr() const {
|
|
return Expression(this->orKeyword());
|
|
}
|
|
|
|
Expression QueryBuilder::plainNor() const {
|
|
return Expression(this->notKeyword() + " " + this->orKeyword());
|
|
}
|
|
|
|
Expression QueryBuilder::plainAnd() const {
|
|
return Expression(this->andKeyword());
|
|
}
|
|
|
|
Expression QueryBuilder::plainNand() const {
|
|
return Expression(this->notKeyword() + " " + this->andKeyword());
|
|
}
|
|
|
|
Expression QueryBuilder::like(QString column, QVariant value,
|
|
JokerPosition jp, QChar wildcard) {
|
|
return this->arbitraryOperator(this->likeKeyword(), column,
|
|
this->addWildcard(value, jp, wildcard));
|
|
}
|
|
|
|
Expression QueryBuilder::like(QHash<QString, QVariant> conditions,
|
|
QString conjunction,
|
|
JokerPosition jp, QChar wildcard) {
|
|
Expression exp = Expression();
|
|
QString condition = "(";
|
|
if (!conditions.isEmpty()) {
|
|
bool first = true;
|
|
for (auto i = conditions.constBegin(); i != conditions.constEnd(); ++i) {
|
|
if (first) {
|
|
first = false;
|
|
} else {
|
|
condition += conjunction;
|
|
}
|
|
condition += this->schema->quoteColumnName(i.key()) + " " + this->likeKeyword()
|
|
+ " " +
|
|
this->placeHolder(i.key());
|
|
QString newVal = this->addWildcard(i.value(), jp, wildcard);
|
|
exp.appendParam(i.key(), newVal.isEmpty() ? i.value() : newVal);
|
|
}
|
|
condition += ")";
|
|
exp.setExpression(condition);
|
|
}
|
|
return exp;
|
|
}
|
|
|
|
Join QueryBuilder::joinClasses(const QSharedPointer<Entity> &mainEntity,
|
|
const QSharedPointer<Entity> &foreignEntity, const QString &joinType) const {
|
|
Join j = Join(foreignEntity->getTablename(),
|
|
this->leftJoin(foreignEntity->getTablename(), mainEntity->getTablename(),
|
|
foreignEntity->getPrimaryKey(), mainEntity->getPrimaryKey(), true));
|
|
j.setType(joinType);
|
|
return j;
|
|
}
|
|
|
|
QList<Join> QueryBuilder::joinBaseClasses(const QSharedPointer<Entity>
|
|
&entity) {
|
|
auto classes = EntityHelper::superClasses(entity.data(), true);
|
|
QList<Join> joins = QList<Join>();
|
|
for (int var = 0; var < classes.size(); ++var) {
|
|
auto metaObject = classes.at(var);
|
|
QSharedPointer<Entity> e = QSharedPointer<Entity>
|
|
(EntityInstanceFactory::createInstance(metaObject->className()));
|
|
if (e) {
|
|
joins.append(this->joinClasses(entity, e));
|
|
}
|
|
}
|
|
return joins;
|
|
}
|
|
|
|
QString QueryBuilder::joinSuperClasses(const QSharedPointer<Entity> &entity)
|
|
const {
|
|
auto classes = EntityHelper::superClasses(entity.data(), true);
|
|
QString joined = "";
|
|
for (int var = 0; var < classes.size(); ++var) {
|
|
auto metaObject = classes.at(var);
|
|
Entity *e = EntityInstanceFactory::createInstance(metaObject->className());
|
|
if (e) {
|
|
joined.append(" ");
|
|
joined.append(this->leftJoin(e->getTablename(), entity->getTablename(),
|
|
e->getPrimaryKey(), entity->getPrimaryKey()));
|
|
}
|
|
delete e;
|
|
e = nullptr;
|
|
}
|
|
return joined;
|
|
}
|
|
|
|
Expression QueryBuilder::where(QHash<QString, QVariant> conditions,
|
|
QString conjunction) const {
|
|
Expression exp = Expression(this->where(conditions, conjunction, false, "id",
|
|
false));
|
|
for (auto i = conditions.constBegin(); i != conditions.constEnd(); ++i) {
|
|
exp.appendParam(i.key(), i.value());
|
|
}
|
|
return exp;
|
|
}
|
|
|
|
Expression QueryBuilder::where(QString c, QVariant value) {
|
|
Expression exp;
|
|
if(value.type() == QVariant::Hash) {
|
|
auto values = value.toHash();
|
|
exp = Expression(c);
|
|
for (auto i = values.constBegin(); i != values.constEnd(); ++i) {
|
|
exp.appendParam(i.key(), i.value());
|
|
}
|
|
} else {
|
|
QString placeholder = c + "_where";
|
|
exp = Expression(this->schema->quoteColumnName(c) + "=" +
|
|
this->placeHolder(placeholder));
|
|
exp.appendParam(placeholder, value);
|
|
}
|
|
return exp;
|
|
}
|
|
|
|
Expression QueryBuilder::equal(QString &key, QVariant &value) {
|
|
Expression exp = Expression(this->where(key, value, false, true, false), key, value);
|
|
return exp;
|
|
}
|
|
|
|
Expression QueryBuilder::notEqual(QString &key, QVariant &value) {
|
|
Expression exp = Expression(this->where(key, value, false, true, true));
|
|
exp.appendParam(key, value);
|
|
return exp;
|
|
}
|
|
|
|
Expression QueryBuilder::between(QString column, QVariant firstValue,
|
|
QVariant secondValue) const {
|
|
QString firstPh = column + "_bet1";
|
|
QString secondPh = column + "_bet2";
|
|
return this->appendCondition(firstPh, secondPh, firstValue, secondValue,
|
|
this->between(column, firstPh, secondPh));
|
|
}
|
|
|
|
Expression QueryBuilder::notBetween(QString column, QVariant firstValue,
|
|
QVariant secondValue) const {
|
|
QString firstPh = column + "_nbet1";
|
|
QString secondPh = column + "_nbet2";
|
|
return this->appendCondition(firstPh, secondPh, firstValue, secondValue,
|
|
this->between(column, firstPh, secondPh, true));
|
|
}
|
|
|
|
|
|
Expression QueryBuilder::appendCondition(QString ph1, QString ph2,
|
|
QVariant val1, QVariant val2, QString condition) const {
|
|
Expression exp = Expression(condition);
|
|
exp.appendParam(ph1, val1);
|
|
exp.appendParam(ph2, val2);
|
|
return exp;
|
|
}
|
|
|
|
Expression QueryBuilder::in(QString column, QList<QVariant> values) const {
|
|
return this->inFunction(column, values);
|
|
}
|
|
|
|
Expression QueryBuilder::notIn(QString column, QList<QVariant> values) const {
|
|
return this->inFunction(column, values, true);
|
|
}
|
|
|
|
Expression QueryBuilder::notOperator(QString op, QString column,
|
|
QVariant value) const {
|
|
Expression e = this->arbitraryOperator(op, column, value);
|
|
e.setExpression(this->notKeyword() + " " + e.getExpression());
|
|
return e;
|
|
}
|
|
|
|
Expression QueryBuilder::orOperator(
|
|
QHash<QString, QVariant> conditions, bool like) const {
|
|
Expression exp = Expression();
|
|
if (!conditions.isEmpty()) {
|
|
QString condition = "(";
|
|
bool first = true;
|
|
for (auto i = conditions.constBegin(); i != conditions.constEnd(); ++i) {
|
|
if (first) {
|
|
first = false;
|
|
} else {
|
|
condition += " " + this->orKeyword() + " ";
|
|
}
|
|
condition += this->schema->quoteColumnName(i.key()) + (like ? " " +
|
|
this->likeKeyword() + " " : this->equalOperator()) +
|
|
this->placeHolder(i.key());
|
|
exp.appendParam(i.key(), i.value());
|
|
}
|
|
condition += ")";
|
|
exp.setExpression(condition);
|
|
}
|
|
return exp;
|
|
}
|
|
|
|
Expression QueryBuilder::orOperator() const {
|
|
return this->plainOr();
|
|
}
|
|
|
|
Expression QueryBuilder::norOperator() const {
|
|
return this->plainNor();
|
|
}
|
|
|
|
QString QueryBuilder::where(const QSharedPointer<Entity> &entity,
|
|
QString conjunction,
|
|
bool ignoreID) const {
|
|
return this->where(EntityHelper::getEntityAttributes(
|
|
EntityHelper::getMetaProperties(entity.data()), entity), conjunction, ignoreID,
|
|
entity->getPrimaryKey());
|
|
}
|