added connection impl class

src/sql/record.cpp

@@ -0,0 +1,75 @@
+#include "matador/sql/record.hpp"
+
+namespace matador::sql {
+
+record::record(std::initializer_list<column> columns)
+: columns_(columns) {
+  size_t index{0};
+  for(auto &col : columns_) {
+    columns_by_name_.emplace(col.name(), column_index_pair {std::ref(col), index++});
+  }
+}
+
+const column &record::at(const std::string &name) const
+{
+  return columns_by_name_.at(name).first;
+}
+
+const column &record::at(size_t index)
+{
+  return columns_.at(index);
+}
+
+record::iterator record::find(const std::string &column_name)
+{
+  auto it = columns_by_name_.find(column_name);
+  return it != columns_by_name_.end() ? columns_.begin() + it->second.second : columns_.end();
+}
+
+record::const_iterator record::find(const std::string &column_name) const {
+  auto it = columns_by_name_.find(column_name);
+  return it != columns_by_name_.end() ? columns_.begin() + it->second.second : columns_.end();
+}
+
+void record::append(column col)
+{
+  auto &ref = columns_.emplace_back(std::move(col));
+  columns_by_name_.emplace(ref.name(), column_index_pair{std::ref(ref), columns_.size()-1});
+}
+
+record::iterator record::begin()
+{
+  return columns_.begin();
+}
+
+record::const_iterator record::begin() const
+{
+  return columns_.begin();
+}
+
+record::const_iterator record::cbegin() const
+{
+  return columns_.cbegin();
+}
+
+record::iterator record::end()
+{
+  return columns_.end();
+}
+
+record::const_iterator record::end() const
+{
+  return columns_.end();
+}
+
+record::const_iterator record::cend() const
+{
+  return columns_.cend();
+}
+
+size_t record::size() const
+{
+  return columns_.size();
+}
+
+}