Updating of detail tabs besides list of tables works correctly again.

Had stopped working because the catalog now behaves a little different,
returning nullptr instead of an invalid element.

pglab/ColumnTableModel.cpp

@@ -11,35 +11,56 @@
 #include "SqlFormattingUtils.h"
 #include <QBrush>
 
-void ColumnTableModel::setData(std::shared_ptr<const PgDatabaseCatalog> cat, const PgClass &table)
+namespace {
+
+	// Filter dropped and system columns but keep the oid column
+	bool ColumnFilterWithOidsPred(PgAttribute &e)
+	{
+		return e.isdropped || (e.num <= 0 && e.name != "oid");
+	}
+
+	// Filter dropped and system columns
+	bool ColumnFilterWithoutOidsPred(PgAttribute &e)
+	{
+		return e.isdropped || e.num <= 0;
+	}
+
+}
+
+void ColumnTableModel::setData(std::shared_ptr<const PgDatabaseCatalog> cat, const std::optional<PgClass> &table)
 {
 	beginResetModel();
 	SCOPE_EXIT { endResetModel(); };
 
 	m_table = table;
 	m_catalog = cat;
-	m_columns = cat->attributes()->getColumnsForRelation(table.oid);
+	if (m_table) {
-
+		m_columns = cat->attributes()->getColumnsForRelation(table->oid);
-	// hide system columns
+		// hide system and dropped columns
-	auto si = table.hasoids
+		auto column_filter_pred = table->hasoids ? ColumnFilterWithOidsPred : ColumnFilterWithoutOidsPred;
-		? std::remove_if(m_columns.begin(), m_columns.end(),
+		auto si = std::remove_if(m_columns.begin(), m_columns.end(), column_filter_pred);
-				[](PgAttribute &e) { return e.num <= 0 && e.name != "oid"; })
-		: std::remove_if(m_columns.begin(), m_columns.end(),
-				[](PgAttribute &e) { return e.num <= 0; });
 		// move columns to end and remove them
 		m_columns.erase(si, m_columns.end());
 
 		// sort remaining columns by order in table
 		std::sort(m_columns.begin(), m_columns.end(),
 				  [] (auto &l, auto &r) -> bool { return l.num < r.num; });
+	}
+	else
+		m_columns.clear();
 
-	m_indexes = m_catalog->indexes()->getIndexesForTable(table.oid);
+
+	if (m_table) {
+		m_indexes = m_catalog->indexes()->getIndexesForTable(table->oid);
 		std::sort(m_indexes.begin(), m_indexes.end(),
 			[] (const auto &l, const auto &r) -> bool
 			{
 				return l.isprimary > r.isprimary
 					|| (l.isprimary == r.isprimary && l.indexrelid < r.indexrelid);
 			});
+	}
+	else
+		m_indexes.clear();
 }
 
 QVariant ColumnTableModel::headerData(int section, Qt::Orientation orientation, int role) const
@@ -224,6 +245,9 @@ QVariant ColumnTableModel::data(const QModelIndex &index, int role) const
 	if (role == Qt::ForegroundRole && index.column() == TypeCol) {
 		QVariant v;
 		const auto &t = m_columns[index.row()];
+		if (t.typid == InvalidOid)
+			v = QBrush(Qt::black);
+		else {
 			auto c = m_catalog->types()->getByKey(t.typid);
 			switch (c->category) {
 			case TypCategory::Boolean:
@@ -252,6 +276,7 @@ QVariant ColumnTableModel::data(const QModelIndex &index, int role) const
 			default:
 				v = QBrush(Qt::black);
 			}
+		}
 		return v;
 	}
 	if (role == Qt::TextAlignmentRole) {

pglab/ColumnTableModel.h

@@ -5,6 +5,7 @@
 #include "PgClass.h"
 #include "PgIndex.h"
 #include <memory>
+#include <optional>
 #include <vector>
 
 class PgDatabaseCatalog;
@@ -25,7 +26,7 @@ public:
 
 
 	using BaseTableModel::BaseTableModel;
-	void setData(std::shared_ptr<const PgDatabaseCatalog> cat, const PgClass &table);
+	void setData(std::shared_ptr<const PgDatabaseCatalog> cat, const std::optional<PgClass> &table);
 
 	// Header:
 	QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
@@ -42,7 +43,7 @@ protected:
 	using t_Columns = std::vector<PgAttribute>;
 
 	std::shared_ptr<const PgDatabaseCatalog> m_catalog;
-	PgClass m_table;
+	std::optional<PgClass> m_table;
 	t_Columns m_columns;
 	std::vector<PgIndex> m_indexes;
 

pglab/ConstraintModel.cpp

@@ -12,42 +12,23 @@ ConstraintModel::ConstraintModel(QObject *parent)
 
 
 
-void ConstraintModel::setData(std::shared_ptr<const PgDatabaseCatalog> cat, const PgClass &table)
+void ConstraintModel::setData(std::shared_ptr<const PgDatabaseCatalog> cat, const std::optional<PgClass> &table)
 {
 	beginResetModel();
 	SCOPE_EXIT { endResetModel(); };
 
 	m_table = table;
 	m_catalog = cat;
-	m_constraints = cat->constraints()->getConstraintsForRelation(table.oid);
+	if (table) {
-
+		m_constraints = cat->constraints()->getConstraintsForRelation(table->oid);
 		std::sort(m_constraints.begin(), m_constraints.end(),
 				  [] (auto &l, auto &r) {
 						return l.type < r.type ||
 							(l.type == r.type && l.name < r.name);
 			});
-
+	}
-//	// hide system columns
+	else
-//	auto si = table.hasoids
+		m_constraints.clear();
-//		? std::remove_if(m_columns.begin(), m_columns.end(),
-//				[](PgAttribute &e) { return e.num <= 0 && e.name != "oid"; })
-//		: std::remove_if(m_columns.begin(), m_columns.end(),
-//				[](PgAttribute &e) { return e.num <= 0; });
-//	// move columns to end and remove them
-//	m_columns.erase(si, m_columns.end());
-
-//	// sort remaining columns by order in table
-//	std::sort(m_columns.begin(), m_columns.end(),
-//			  [] (auto &l, auto &r) -> bool { return l.num < r.num; });
-
-//	m_indexes = m_catalog->indexes()->getIndexesForTable(table.oid);
-//	std::sort(m_indexes.begin(), m_indexes.end(),
-//			[] (const auto &l, const auto &r) -> bool
-//			{
-//				return l.isprimary > r.isprimary
-//					|| (l.isprimary == r.isprimary && l.indexrelid < r.indexrelid);
-//			});
-
 }
 
 QVariant ConstraintModel::headerData(int section, Qt::Orientation orientation, int role) const

pglab/ConstraintModel.h

@@ -5,6 +5,7 @@
 #include "PgClass.h"
 #include "PgConstraint.h"
 #include <QAbstractTableModel>
+#include <optional>
 #include <vector>
 
 class PgDatabaseCatalog;
@@ -23,7 +24,7 @@ public:
 
 	explicit ConstraintModel(QObject *parent = nullptr);
 
-	void setData(std::shared_ptr<const PgDatabaseCatalog> cat, const PgClass &table);
+	void setData(std::shared_ptr<const PgDatabaseCatalog> cat, const std::optional<PgClass> &table);
 
 
 	// Header:
@@ -43,7 +44,7 @@ protected:
 
 private:
 	std::shared_ptr<const PgDatabaseCatalog> m_catalog;
-	PgClass m_table;
+	std::optional<PgClass> m_table;
 
 	using t_Constraints = std::vector<PgConstraint>;
 	t_Constraints m_constraints;

pglab/IndexModel.cpp

@@ -5,15 +5,17 @@
 #include "ScopeGuard.h"
 #include "CustomDataRole.h"
 
-void IndexModel::setData(std::shared_ptr<const PgDatabaseCatalog> cat, const PgClass &table)
+void IndexModel::setData(std::shared_ptr<const PgDatabaseCatalog> cat, const std::optional<PgClass> &table)
 {
 	beginResetModel();
 	SCOPE_EXIT { endResetModel(); };
 
 	m_catalog = cat;
 	m_table = table;
-
+	if (table)
-	m_indexes = cat->indexes()->getIndexesForTable(table.oid);
+		m_indexes = cat->indexes()->getIndexesForTable(table->oid);
+	else
+		m_indexes.clear();
 }
 
 int IndexModel::rowCount(const QModelIndex &/*parent*/) const

pglab/IndexModel.h

@@ -5,6 +5,7 @@
 #include "PgClass.h"
 #include "PgIndex.h"
 #include <memory>
+#include <optional>
 #include <vector>
 
 
@@ -36,7 +37,7 @@ public:
 // comment
 
 	QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
-	void setData(std::shared_ptr<const PgDatabaseCatalog> cat, const PgClass &table);
+	void setData(std::shared_ptr<const PgDatabaseCatalog> cat, const std::optional<PgClass> &table);
 
 
 	// Basic functionality:
@@ -52,7 +53,7 @@ protected:
 
 private:
 	std::shared_ptr<const PgDatabaseCatalog> m_catalog;
-	PgClass m_table;
+	std::optional<PgClass> m_table;
 
 	using t_Indexes = std::vector<PgIndex>;
 	t_Indexes m_indexes;

pglab/TablesPage.cpp

@@ -139,21 +139,29 @@ void TablesPage::setCatalog(std::shared_ptr<PgDatabaseCatalog> cat)
 void TablesPage::tableListTable_currentRowChanged(const QModelIndex &current, const QModelIndex &previous)
 {
 	if (current.row() != previous.row()) {
+		if (current.isValid()) {
 			PgClass table = m_tablesModel->getTable(current.row());
 			selectedTableChanged(table);
 		}
+		else
+			selectedTableChanged({});
+	}
 }
 
 
 void TablesPage::tableListTable_layoutChanged(const QList<QPersistentModelIndex> &, QAbstractItemModel::LayoutChangeHint )
 {
 	auto&& index = ui->tableListTable->selectionModel()->currentIndex();
+	if (index.isValid()) {
 		PgClass table = m_tablesModel->getTable(index.row());
 		selectedTableChanged(table);
+	}
+	else
+		selectedTableChanged({});
 }
 
 
-void TablesPage::selectedTableChanged(const PgClass & table)
+void TablesPage::selectedTableChanged(const std::optional<PgClass> &table)
 {
 	m_columnsModel->setData(m_catalog, table);
 	ui->columnsTable->resizeColumnsToContents();

pglab/TablesPage.h

@@ -3,6 +3,7 @@
 
 #include <QWidget>
 #include <memory>
+#include <optional>
 #include <QItemSelection>
 
 namespace Ui {
@@ -25,7 +26,7 @@ class TablesPage : public QWidget
 	Q_OBJECT
 
 public:
-	explicit TablesPage(MainWindow *parent = 0);
+	explicit TablesPage(MainWindow *parent = nullptr);
 	~TablesPage();
 
 	void setCatalog(std::shared_ptr<PgDatabaseCatalog> cat);
@@ -46,7 +47,7 @@ private:
 	void retranslateUi(bool all = true);
 	QWidget* addDetailTab(QWidget *contents);
 
-	void selectedTableChanged(const PgClass & table);
+	void selectedTableChanged(const std::optional<PgClass> &table);
 private slots:
 
 	void tableListTable_currentRowChanged(const QModelIndex &current, const QModelIndex &previous);

pglab/TriggerPage.cpp

@@ -45,9 +45,9 @@ void TriggerPage::setCatalog(std::shared_ptr<const PgDatabaseCatalog> cat)
 }
 
 
-void TriggerPage::setFilter(const PgClass &cls)
+void TriggerPage::setFilter(const std::optional<PgClass> &cls)
 {
-	m_sortFilterProxy->setOidFilterTable(cls.oid, FirstHiddenValue);
+	m_sortFilterProxy->setOidFilterTable(cls ? cls->oid : InvalidOid, FirstHiddenValue);
 }
 
 

pglab/TriggerPage.h

@@ -3,6 +3,7 @@
 
 #include <QSplitter>
 #include <memory>
+#include <optional>
 
 class QTableView;
 class SqlCodePreview;
@@ -20,7 +21,7 @@ public:
 //	TriggerPage(QWidget *parent = nullptr);
 
 	void setCatalog(std::shared_ptr<const PgDatabaseCatalog> cat);
-	void setFilter(const PgClass &cls);
+	void setFilter(const std::optional<PgClass> &cls);
 signals:
 
 public slots:

pglablib/PgAttribute.h

@@ -20,6 +20,7 @@ public:
 	int32_t typmod = -1;
 	bool notnull = false;
 	bool hasdef = false;
+	bool isdropped = false;
 	Oid collation = InvalidOid;
 	QString acl;
 	QString options;

pglablib/PgAttributeContainer.cpp

@@ -10,7 +10,7 @@ std::string PgAttributeContainer::getLoadQuery() const
 {
 	return R"__(
 SELECT attrelid, attname, atttypid, attstattarget,
-	attnum, attndims, atttypmod, attnotnull, atthasdef,
+	attnum, attndims, atttypmod, attnotnull, atthasdef, attisdropped,
 	attcollation, attacl, attoptions, pg_get_expr(adbin, adrelid) AS def_value
 FROM pg_catalog.pg_attribute
   LEFT JOIN pg_attrdef ON attrelid=adrelid AND attnum=adnum)__";
@@ -21,7 +21,7 @@ PgAttribute PgAttributeContainer::loadElem(const Pgsql::Row &row)
 	Pgsql::Col col(row);
 	PgAttribute v;
 	col >> v.relid >> v.name >> v.typid >> v.stattarget
-			>> v.num >> v.ndims >> v.typmod >> v.notnull >> v.hasdef
+			>> v.num >> v.ndims >> v.typmod >> v.notnull >> v.hasdef >> v.isdropped
 			>> v.collation >> v.acl >> v.options >> v.defaultValue;
 	return v;
 }