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#ifndef FKCOMBOBOX_H
#define FKCOMBOBOX_H
#include <QComboBox>
#include "datagrid/sqlquerymodelcolumn.h"
class SqlQueryModel;
class SqlQueryView;
class Db;
class FkComboBox : public QComboBox
{
Q_OBJECT
public:
FkComboBox(QWidget *parent, int dropDownViewMinWidth = -1);
static QString getSqlForFkEditor(Db* db, SqlQueryModelColumn* columnModel, const QVariant& currentValue);
static qlonglong getRowCountForFkEditor(Db* db, const QString& query, bool* isError);
static const qlonglong MAX_ROWS_FOR_FK = 10000L;
static const int FK_CELL_LENGTH_LIMIT = 30;
void init(Db* db, SqlQueryModelColumn* columnModel);
void setValue(const QVariant& value);
QVariant getValue(bool* manualValueUsed = nullptr, bool* ok = nullptr) const;
private:
class FkComboShowFilter : public QObject
{
public:
explicit FkComboShowFilter(FkComboBox* parentCombo);
bool eventFilter(QObject *obj, QEvent *event);
};
void init();
void updateComboViewGeometry(bool initial) const;
void updateCurrentItemIndex(const QString& value = QString());
int getFkViewHeaderWidth(bool includeScrollBar) const;
QString getSql() const;
static QString resolveImplicitColumn(Db *db, SqlQueryModelColumn* columnModel, SqlQueryModelColumn::ConstraintFk*& fk, QHash<QString, int>& implicitFkColumnIdxByTable, QHash<QString, QStringList>& implicitFkColumnsByTable);
int dropDownViewMinWidth;
SqlQueryView* comboView = nullptr;
SqlQueryModel* comboModel = nullptr;
SqlQueryModelColumn* columnModel = nullptr;
QString beforeLoadValue;
QVariant sourceValue;
bool disableValueChangeNotifications = false;
QString oldValue;
private slots:
void fkDataAboutToLoad();
void fkDataReady();
void fkDataFailed(const QString& errorText);
void notifyValueModified();
signals:
void valueModified();
};
#endif // FKCOMBOBOX_H
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