updated README.md

README.md

@@ -4,11 +4,36 @@ A fluent sql query_context builder
 
 Object definition
 ```cpp
+enum class Color {
+  Red, Green, Blue, Yellow, Pink, Black, White
+};
+
+struct Coordinate
+{
+  int x;
+  int y;
+  int z;
+};
+
+// special handling for custom type Coordinate
+namespace matador::utils::access {
+
+template<class Operator>
+void attribute(Operator &op, const char *id, Coordinate &value, const field_attributes &attr = null_attributes) {
+  attribute(op, (std::string(id) + "_x").c_str(), value.x, attr);
+  attribute(op, (std::string(id) + "_y").c_str(), value.y, attr);
+  attribute(op, (std::string(id) + "_z").c_str(), value.z, attr);
+}
+
+}
+
 struct airplane
 {
   unsigned long id;
   std::string brand;
   std::string model;
+  Color color;
+  Coordinate position;
 
   template<class Operator>
   void process(Operator &op) {
@@ -16,6 +41,8 @@ struct airplane
     field::primary_key(op, "id", id);
     field::attribute(op, "brand", brand, 255);
     field::attribute(op, "model", model, 255);
+    field::attribute(op, "color", color);
+    field::attribute(op, "position", position);
   }
 };
 ```
@@ -23,20 +50,35 @@ struct airplane
 connection_pool<connection> pool("sqlite://sqlite.db", 4);
 session s(pool);
 
-// register entity
-s.attach<airplane>("airplane")
-
 // create all tables
-s.create();
+s.create().table<airplane>().execute();
+
+std::vector<entity<airplane>> planes {
+  make_entity<airplane>(1, "Airbus", "A380"),
+  make_entity<airplane>(2, "Boeing", "707"),
+  make_entity<airplane>(3, "Boeing", "747")
+};
+
+auto stmt = s.insert()
+             .into<airplane>("airplane")
+             .values<airplane>().prepare();
+
 
 // insert
-s.insert<airplane>(1, "Airbus", "A380");
+for (const auto &plane: planes) {
-s.insert<airplane>(2, "Boeing", "748");
+  auto res = stmt.bind(*plane).execute();
-s.insert<airplane>(3, "Boeing", "707");
+  stmt.reset();
+}
 
-s.update<airplane>().set({"model", "747"}).where("id"_col == 2);
+s.update("airplane")
+ .set({"model", "737"})
+ .where("id"_col == 2)
+ .execute();
 
-auto result = s.select<airplane>().where("brand"_col == "Boeing");
+auto result = s.select<airplane>()
+               .from("airplane")
+               .where("brand"_col == "Boeing")
+               .execute();
 
 for (const auto &plane : result) {
   std::cout << "airplane: " << plane->brand << " - " << plane->model << "\n";