EditColumnTableModel, return typename for displayrole for type column and oid for edit value.

pglab/EditColumnTableModel.h

@@ -3,7 +3,9 @@
 
 #include <QAbstractTableModel>
 #include "Pgsql_oids.h"
+#include <memory>
 
+class PgDatabaseCatalog;
 
 class Column {
 public:
@@ -38,8 +40,7 @@ public:
 		colCount
 	};
 
-	EditColumnTableModel(QObject *parent = nullptr);
-
+	EditColumnTableModel(std::shared_ptr<PgDatabaseCatalog> catalog, QObject *parent = nullptr);
 
 	virtual QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
 	virtual int rowCount(const QModelIndex &parent = QModelIndex()) const override;
@@ -57,6 +58,7 @@ public slots:
 private:
 	using ColumnList = std::vector<Column>;
 
+	std::shared_ptr<PgDatabaseCatalog> m_catalog;
 	ColumnList m_data; ///< Better call it data as columns would be confusing
 };