[packagechooser] Add getters for the *packages* members to the model

src/modules/packagechooser/PackageModel.cpp

@@ -79,6 +79,33 @@ PackageListModel::addPackage( PackageItem&& p )
     }
 }
 
+QStringList
+PackageListModel::getInstallPackagesForName( const QString& id ) const
+{
+    for ( const auto& p : qAsConst( m_packages ) )
+    {
+        if ( p.id == id )
+        {
+            return p.packageNames;
+        }
+    }
+    return QStringList();
+}
+
+QStringList
+PackageListModel::getInstallPackagesForNames( const QStringList& ids ) const
+{
+    QStringList l;
+    for ( const auto& p : qAsConst( m_packages ) )
+    {
+        if ( ids.contains( p.id ) )
+        {
+            l.append( p.packageNames );
+        }
+    }
+    return l;
+}
+
 int
 PackageListModel::rowCount( const QModelIndex& index ) const
 {

src/modules/packagechooser/PackageModel.h

@@ -98,6 +98,19 @@ public:
     /// @brief Direct (non-abstract) count of package data
     int packageCount() const { return m_packages.count(); }
 
+    /** @brief Does a name lookup (based on id) and returns the packages member
+     *
+     * If there is a package with the given @p id, returns its packages
+     * (e.g. the names of underlying packages to install for it); returns
+     * an empty list if the id is not found.
+     */
+    QStringList getInstallPackagesForName( const QString& id ) const;
+    /** @brief Name-lookup all the @p ids and returns the packages members
+     *
+     * Concatenates installPackagesForName() for each id in @p ids.
+     */
+    QStringList getInstallPackagesForNames( const QStringList& ids ) const;
+
     enum Roles : int
     {
         NameRole = Qt::DisplayRole,