Add row number column in model instead of vertical header

THis is because the column can be sorted but the header not.

pglab/crud/CrudModel.cpp

@@ -49,16 +49,20 @@ void CrudModel::setConfig(std::shared_ptr<OpenDatabase> db, const PgClass &table
 
 QVariant CrudModel::headerData(int section, Qt::Orientation orientation, int role) const
 {
+    if (section == 0)
+        return tr("#");
+
+    int column = section - PreColumnCount;
 	QVariant r;
 	if (role == Qt::DisplayRole) {
 		if (orientation == Qt::Horizontal) {
-			QString s(m_roData->getColName(section));
+            QString s(m_roData->getColName(column));
 			s += "\n";
-			s += getTypeDisplayString(*m_database->catalog(), getType(section));
+            s += getTypeDisplayString(*m_database->catalog(), getType(column));
 			r = s;
 		}
 		else {
-			r = QString::number(section + 1);
+            r = QString::number(column + 1);
 		}
 	}
 	return r;
@@ -72,7 +76,7 @@ int CrudModel::rowCount(const QModelIndex &/*parent*/) const
 int CrudModel::columnCount(const QModelIndex &/*parent*/) const
 {
 	int col_count = m_roData ? m_roData->cols() : 0;
-	return col_count;
+    return PreColumnCount + col_count;
 }
 
 Oid CrudModel::getType(int column) const
@@ -167,7 +171,17 @@ QVariant StringToVariant(const std::string &str, Oid oid)
 
 QVariant CrudModel::data(const QModelIndex &index, int role) const
 {
-    Oid typ = getType(index.column());
+    if (index.column() < PreColumnCount)
+    {
+        if (role == Qt::DisplayRole || role == CustomSortRole)
+            return index.row();
+        else if (role == CustomDataTypeRole)
+            return Pgsql::int4_oid;
+
+        return {};
+    }
+
+    Oid typ = getType(index.column() - PreColumnCount);
     if (role == Qt::EditRole || role == Qt::DisplayRole)
     {
         auto value = getLatestData(index);
@@ -192,9 +206,8 @@ QVariant CrudModel::data(const QModelIndex &index, int role) const
     else if (role == CustomSortRole)
     {
         auto value = getLatestData(index);
-        if (value) {
+        if (value)
             return StringToVariant(value->c_str(), typ);
-        }
     }
 
     return {};
@@ -258,9 +271,12 @@ void CrudModel::connectionStateChanged(ASyncDBConnection::State state)
 	}
 }
 
-Qt::ItemFlags CrudModel::flags(const QModelIndex &) const
+Qt::ItemFlags CrudModel::flags(const QModelIndex &index) const
 {
-	Qt::ItemFlags flags = Qt::ItemIsSelectable | Qt::ItemIsEnabled;
+    Qt::ItemFlags flags = Qt::ItemIsSelectable | Qt::ItemIsEnabled;
+    if (index.column() < PreColumnCount)
+        return flags;
+
 	if (m_primaryKey) {
 		flags |= Qt::ItemIsEditable;
 	}
@@ -269,9 +285,12 @@ Qt::ItemFlags CrudModel::flags(const QModelIndex &) const
 
 bool CrudModel::setData(const QModelIndex &index, const QVariant &value, int role)
 {
+    if (index.column() < PreColumnCount)
+        return false;
+
 	if (role == Qt::EditRole) {
 		int grid_row = index.row();
-		int col = index.column();
+        int col = index.column() - PreColumnCount;
 
 		auto& row_mapping = m_rowMapping[grid_row];
 		row_mapping.pending = true;

pglab/crud/CrudModel.h

@@ -51,6 +51,8 @@ public slots:
 private:
 	using PKeyValues = std::vector<std::string>;
 
+    const int PreColumnCount = 1;
+
 
 	class ColumnSort {
 	public:
@@ -220,7 +222,7 @@ private:
     Value getLatestData(int column, int row) const;
     Value getLatestData(const QModelIndex &index) const
     {
-        return getLatestData(index.column(), index.row());
+        return getLatestData(index.column() - PreColumnCount, index.row());
     }
     Value getSavedData(int columnIndex, int rowIndex) const;
     Value getSavedData(const RowMapping &row_mapping, int columnIndex) const;

pglab/crud/CrudTab.ui

@@ -15,7 +15,11 @@
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
-    <widget class="QTableView" name="tableView"/>
+    <widget class="QTableView" name="tableView">
+     <attribute name="verticalHeaderVisible">
+      <bool>false</bool>
+     </attribute>
+    </widget>
    </item>
   </layout>
   <action name="actionRemove_rows">