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#include "schema.h"
#include <QRegularExpression>
#include <QSqlRecord>
#include <QSqlQuery>
#include "database.h"
using namespace CuteEntityManager;

Schema::Schema(QSharedPointer<Database> database) {
this->database = database;
this->typeMap = QSharedPointer<QHash<QString, QString>>(new QHash<QString, QString>());
this->queryBuilder = QSharedPointer<QueryBuilder>();
}

Schema::~Schema() {

}

QHash<QString, QString> Schema::getAbstractDatabaseTypes() {
auto typeMap = QHash<QString, QString>();
typeMap.insert("bool", TYPE_SMALLINT);
typeMap.insert("short", TYPE_SMALLINT);
typeMap.insert("int", TYPE_INTEGER);
typeMap.insert("long", TYPE_INTEGER);
typeMap.insert("long long", TYPE_INTEGER);
typeMap.insert("float", TYPE_FLOAT);
typeMap.insert("double", TYPE_FLOAT);
typeMap.insert("long double", TYPE_FLOAT);
typeMap.insert("qint", TYPE_INTEGER);
typeMap.insert("quint", TYPE_INTEGER);
typeMap.insert("quuid", TYPE_INTEGER);
typeMap.insert("qfloat", TYPE_FLOAT);
typeMap.insert("unsigned short", TYPE_SMALLINT);
typeMap.insert("unsigned int", TYPE_INTEGER);
typeMap.insert("unsigned long", TYPE_INTEGER);
typeMap.insert("unsigned long long", TYPE_INTEGER);
typeMap.insert("char",TYPE_CHAR);
typeMap.insert("std::string", TYPE_TEXT);
typeMap.insert("QString", TYPE_TEXT);
typeMap.insert("QVariant", TYPE_TEXT);
typeMap.insert("QUuid", TYPE_TEXT);
typeMap.insert("QDate", TYPE_DATE);
typeMap.insert("QTime", TYPE_TIME);
typeMap.insert("QDateTime", TYPE_DATETIME);
typeMap.insert("QByteArray", TYPE_BINARY);
typeMap.insert("QBitArray", TYPE_BINARY);
return typeMap;
}

QString Schema::quoteSimpleTableName(QString name) {
return name.indexOf("`") ? name : "`" + name + "`";
}

QString Schema::quoteTableName(QString name) {
if (name.indexOf("(") || name.indexOf("{{")) {
return name;
}
if (name.indexOf(".") == -1) {
return this->quoteSimpleTableName(name);
}
QStringList parts = name.split(".");
for (int i = 0; i < parts.size(); ++i) {
parts.replace(i, this->quoteSimpleTableName(parts.at(i)));
}
return parts.join(".");
}

QString Schema::quoteColumnName(QString name) {
if (name.indexOf("(") || name.indexOf("[[") || name.indexOf("{{")) {
return name;
}
int pos = name.indexOf(".");
QString prefix = "";
if (pos) {
prefix = this->quoteTableName(name.mid(0, pos)) + ".";
name = name.mid(pos + 1);
}
return prefix + this->quoteSimpleColumnName(name);
}

QString Schema::quoteSimpleColumnName(QString name) {
return name.indexOf("`") || name == "*" ? name : "`" + name + "`";
}

QHash<QString, QSharedPointer<TableSchema> > Schema::getTableSchemas(QString schema, bool refresh) {
QStringList names = this->getTableNames();
for (int i = 0; i < names.size(); ++i) {
QString name;
if (schema != "") {
name = schema + "." + names.at(i);
}
this->getTableSchema(name, refresh);
}
return this->tables;
}

QStringList Schema::getTableNames(QString schema) {
return this->database.data()->getDatabase().tables();
}

QVariant Schema::getLastInsertID() {
QSqlQuery q(this->database.data()->getDatabase());
return q.lastInsertId();
}

void Schema::refresh() {
this->tables.clear();
}

QString Schema::getRawTable(QString name) {
if (name.indexOf("{{")) {
QRegularExpression re("/\\{\\{(.*?)\\}\\}/");
return name.replace(re, "\\1");
}
return name;
}

bool Schema::containsTable(QString tblname) {
return this->tables.contains(tblname);
}

QSharedPointer<TableSchema> Schema::getTableSchema(QString name, bool refresh) {
if (refresh) {
this->refresh();
}
if (this->tables.contains(name)) {
return this->tables.value(name);
}
QString realName = this->getRawTable(name);
auto ts = this->loadTableSchema(realName);
if (ts.data()) {
this->tables.insert(name, ts);
}
return ts;
}

QSharedPointer<Database> Schema::getDatabase() const {
return database;
}

void Schema::setDatabase(const QSharedPointer<Database> &value) {
database = value;
}
QSharedPointer<QueryBuilder> Schema::getQueryBuilder() const {
return queryBuilder;
}

QHash<QString, QSharedPointer<TableSchema> > Schema::getTables() const {
return this->tables;
}

void Schema::setTables(const QHash<QString, QSharedPointer<TableSchema> > &value) {
tables = value;
}

(11-11/14)