added read typed entity with foreign key

include/matador/sql/foreign.hpp

@@ -16,6 +16,11 @@ public:
   foreign() = default;
   explicit foreign(Type *obj)
   : obj_(obj) {}
+  foreign(const foreign&) = default;
+  foreign& operator=(const foreign&) = default;
+  foreign(foreign&&) noexcept = default;
+  foreign& operator=(foreign&&) noexcept = default;
+  ~foreign() = default;
 
   pointer operator->() { return obj_.get(); }
   const value_type* operator->() const { return obj_.get(); }
@@ -24,7 +29,7 @@ public:
   const value_type& operator*() const { return *obj_; }
 
 private:
-  std::unique_ptr<value_type> obj_;
+  std::shared_ptr<value_type> obj_;
 };
 
 template<class Type, typename... Args>

test/SessionRecordTest.cpp

@@ -327,3 +327,38 @@ TEST_CASE("Execute select statement with group by and order by", "[session recor
 
   s.drop().table("person").execute();
 }
+
+TEST_CASE("Execute delete statement", "[session record]") {
+  connection_pool<connection> pool("sqlite://sqlite.db", 4);
+  session s(pool);
+
+  auto res = s.create()
+              .table("person", {
+                make_pk_column<unsigned long>("id"),
+                make_column<std::string>("name", 255),
+                make_column<unsigned short>("age")
+              }).execute();
+
+  REQUIRE(res.first == 0);
+
+  res = s.insert().into("person", {"id", "name", "age"}).values({1, "george", 45}).execute();
+  REQUIRE(res.first == 1);
+  res = s.insert().into("person", {"id", "name", "age"}).values({2, "jane", 45}).execute();
+  REQUIRE(res.first == 1);
+
+  auto count = s.select({count_all()}).from("person").fetch_value<int>();
+  REQUIRE(count == 2);
+
+  res = s.remove()
+         .from("person")
+         .where("id"_col == 1)
+         .execute();
+
+  REQUIRE(res.second == R"(DELETE FROM "person" WHERE "id" = 1)");
+  REQUIRE(res.first == 1);
+
+  count = s.select({count_all()}).from("person").fetch_value<int>();
+  REQUIRE(count == 1);
+
+  s.drop().table("person").execute();
+}

test/SessionTest.cpp

@@ -49,26 +49,8 @@ TEST_CASE("Execute select statement with where clause", "[session]") {
          .execute();
   REQUIRE(res.first == 1);
 
-  // fetch specific columns as record
-  auto result_record = s.select({"id", "name", "age"})
-                        .from("person")
-                        .fetch_all();
-
-  for (const auto& i : result_record) {
-    REQUIRE(i.size() == 3);
-    REQUIRE(i.at(0).name() == "id");
-    REQUIRE(i.at(0).type() == data_type_t::type_long_long);
-    REQUIRE(i.at(0).as<long long>() == george.id);
-    REQUIRE(i.at(1).name() == "name");
-    REQUIRE(i.at(1).type() == data_type_t::type_varchar);
-    REQUIRE(i.at(1).as<std::string>() == george.name);
-    REQUIRE(i.at(2).name() == "age");
-    REQUIRE(i.at(2).type() == matador::sql::data_type_t::type_long_long);
-    REQUIRE(i.at(2).as<long long>() == george.age);
-  }
-
   // fetch person as record
-  result_record = s.select<person>()
+  auto result_record = s.select<person>()
                         .from("person")
                         .where("id"_col == 7)
                         .fetch_all();
@@ -124,58 +106,44 @@ TEST_CASE("Execute insert statement", "[session]") {
   s.drop().table("person").execute();
 }
 
-TEST_CASE("Execute update statement", "[session]") {
+TEST_CASE("Select statement with foreign key", "[session]") {
   connection_pool<connection> pool("sqlite://sqlite.db", 4);
   session s(pool);
 
   auto res = s.create()
-    .table("person", {
+    .table<airplane>("airplane")
-      make_pk_column<unsigned long>("id"),
-      make_column<std::string>("name", 255),
-      make_column<std::string>("color", 63)
-    })
     .execute();
-
-  res = s.insert()
-    .into("person", {"id", "name", "color"})
-    .values({7, "george", "green"})
-    .execute();
-
-  REQUIRE(res.first == 1);
-  REQUIRE(res.second == R"(INSERT INTO "person" ("id", "name", "color") VALUES (7, 'george', 'green'))");
-
-  res = s.update("person")
-         .set({
-                {"name",  "george"},
-                {"color", "green"}
-              })
-         .where("id"_col == 9)
-         .execute();
-
-  REQUIRE(res.second == R"(UPDATE "person" SET "name"='george', "color"='green' WHERE "id" = 9)");
-
-  s.drop().table("person").execute();
-}
-
-TEST_CASE("Execute delete statement", "[session]") {
-  connection_pool<connection> pool("sqlite://sqlite.db", 4);
-  session s(pool);
-
-  auto res = s.create()
-    .table("person", {
-      make_pk_column<unsigned long>("id"),
-      make_column<std::string>("name", 255),
-      make_column<unsigned short>("age")
-    }).execute();
-
   REQUIRE(res.first == 0);
-  res = s.remove()
+  REQUIRE(res.second == R"(CREATE TABLE "airplane" ("id" BIGINT, "brand" VARCHAR(255), "model" VARCHAR(255), CONSTRAINT PK_airplane PRIMARY KEY (id)))");
-         .from("person")
+
-         .where("id"_col == 9)
+  res = s.create()
+    .table<flight>("flight")
     .execute();
+  REQUIRE(res.first == 0);
+  REQUIRE(res.second == R"(CREATE TABLE "flight" ("id" BIGINT, "airplane_id" BIGINT, "pilot_name" VARCHAR(255), CONSTRAINT PK_flight PRIMARY KEY (id), CONSTRAINT FK_flight_airplane_id FOREIGN KEY (airplane_id) REFERENCES airplane(id)))");
 
-  REQUIRE(res.second == R"(DELETE FROM "person" WHERE "id" = 9)");
+  std::vector<foreign<airplane>> planes {
+    make_foreign<airplane>(1, "Airbus", "A380"),
+    make_foreign<airplane>(2, "Boeing", "707"),
+    make_foreign<airplane>(3, "Boeing", "747")
+  };
 
-  REQUIRE(s.drop().table("person").execute().first == 0);
+  for (const auto &plane : planes) {
+    res = s.insert().into<airplane>("airplane").values(*plane).execute();
+    REQUIRE(res.first == 1);
+  }
 
+  auto count = s.select({count_all()}).from("airplane").fetch_value<int>();
+  REQUIRE(count == 3);
+
+  flight f4711{4, *planes.begin(), "hans"};
+
+  res = s.insert().into<flight>("flight").values(f4711).execute();
+  REQUIRE(res.first == 1);
+
+  auto f = *s.select<flight>().from("flight").fetch_all<flight>().begin();
+
+
+  s.drop().table("flight").execute();
+  s.drop().table("airplane").execute();
 }

test/models/airplane.hpp

@@ -16,6 +16,11 @@ namespace matador::test {
 
 struct airplane
 {
+  airplane() = default;
+  airplane(unsigned long id, std::string b, std::string m)
+  : id(id)
+  , brand(std::move(b))
+  , model(std::move(m)) {}
   unsigned long id;
   std::string brand;
   std::string model;