From defe5aec4edc065546d44ad17b48a2dd5290144d Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 12 Oct 2012 17:24:45 +0200
Subject: Completion of prepared query support

---
 odb/relational/header.cxx | 240 +++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 235 insertions(+), 5 deletions(-)

(limited to 'odb/relational/header.cxx')

diff --git a/odb/relational/header.cxx b/odb/relational/header.cxx
index a78697f..c6fc9a5 100644
--- a/odb/relational/header.cxx
+++ b/odb/relational/header.cxx
@@ -685,13 +685,13 @@ traverse_object (type& c)
       os << "static result<object_type>" << endl
          << "query (database&, const query_base_type&);"
          << endl;
-
-      os << "static unsigned long long" << endl
-         << "erase_query (database&, const query_base_type&);"
-         << endl;
     }
 
-    if (!options.omit_prepared ())
+    os << "static unsigned long long" << endl
+       << "erase_query (database&, const query_base_type&);"
+       << endl;
+
+    if (options.generate_prepared ())
     {
       os << "static odb::details::shared_ptr<prepared_query_impl>" << endl
          << "prepare_query (connection&, const char*, const query_base_type&);"
@@ -823,6 +823,236 @@ traverse_object (type& c)
      << "};";
 }
 
+void relational::header::class1::
+traverse_view (type& c)
+{
+  string const& type (class_fq_name (c));
+
+  os << "// " << class_name (c) << endl
+     << "//" << endl;
+
+  // class_traits
+  //
+  os << "template <>" << endl
+     << "struct class_traits< " << type << " >"
+     << "{"
+     << "static const class_kind kind = class_view;"
+     << "};";
+
+  // view_traits
+  //
+  os << "template <>" << endl
+     << "class access::view_traits< " << type << " >"
+     << "{"
+     << "public:" << endl;
+
+  // view_type & pointer_type
+  //
+  os << "typedef " << type << " view_type;"
+     << "typedef " << c.get<string> ("object-pointer") << " pointer_type;";
+
+  os << "};";
+
+  // view_traits_impl
+  //
+  os << "template <>" << endl
+     << "class access::view_traits_impl< " << type << ", id_" <<
+    db << " >:" << endl
+     << "  public access::view_traits< " << type << " >"
+     << "{"
+     << "public:" << endl;
+
+  view_public_extra_pre (c);
+
+  // image_type
+  //
+  image_type_->traverse (c);
+
+  os << "typedef " << db << "::view_statements<view_type> statements_type;"
+     << endl;
+
+  //
+  // Query.
+  //
+
+  // query_base_type and query_columns (definition generated by class2).
+  //
+  os << "typedef " << db << "::query_base query_base_type;"
+     << "struct query_columns";
+
+  if (c.get<size_t> ("object-count") == 0)
+    os << "{"
+       << "};";
+  else
+    os << ";"
+       << endl;
+
+  //
+  // Functions.
+  //
+
+  // grow ()
+  //
+  if (generate_grow)
+  {
+    os << "static bool" << endl
+       << "grow (image_type&, " << truncated_vector << ");"
+       << endl;
+  }
+
+  // bind (image_type)
+  //
+  os << "static void" << endl
+     << "bind (" << bind_vector << ", image_type&);"
+     << endl;
+
+  // init (view, image)
+  //
+  os << "static void" << endl
+     << "init (view_type&, const image_type&, database*);"
+     << endl;
+
+  // column_count
+  //
+  os << "static const std::size_t column_count = " <<
+    column_count (c).total << "UL;"
+     << endl;
+
+  // Statements.
+  //
+  view_query& vq (c.get<view_query> ("query"));
+
+  if (vq.kind != view_query::runtime)
+  {
+    os << "static query_base_type" << endl
+       << "query_statement (const query_base_type&);"
+       << endl;
+  }
+
+  //
+  // Functions.
+  //
+
+  // callback ()
+  //
+  os << "static void" << endl
+     << "callback (database&, view_type&, callback_event);"
+     <<  endl;
+
+  // query ()
+  //
+  if (!options.omit_unprepared ())
+    os << "static result<view_type>" << endl
+       << "query (database&, const query_base_type&);"
+       << endl;
+
+  if (options.generate_prepared ())
+  {
+    os << "static odb::details::shared_ptr<prepared_query_impl>" << endl
+       << "prepare_query (connection&, const char*, const query_base_type&);"
+       << endl;
+
+    os << "static odb::details::shared_ptr<result_impl>" << endl
+       << "execute_query (prepared_query_impl&);"
+       << endl;
+  }
+
+  view_public_extra_post (c);
+
+  os << "};";
+
+  // view_traits_impl< , id_default>
+  //
+  os << "template <>" << endl
+     << "class access::view_traits_impl< " << type << ", id_default >:" << endl
+     << "  public access::view_traits_impl< " << type << ", " <<
+    "id_" << db << " >"
+     << "{"
+     << "};";
+}
+
+void relational::header::class1::
+traverse_composite (type& c)
+{
+  string const& type (class_fq_name (c));
+
+  os << "// " << class_name (c) << endl
+     << "//" << endl;
+
+  os << "template <>" << endl
+     << "struct class_traits< " << type << " >"
+     << "{"
+     << "static const class_kind kind = class_composite;"
+     << "};";
+
+  os << "template <>" << endl
+     << "class access::composite_value_traits< " << type << ", " <<
+    "id_" << db << " >"
+     << "{"
+     << "public:" << endl;
+
+  // value_type
+  //
+  os << "typedef " << type << " value_type;"
+     << endl;
+
+  // image_type
+  //
+  image_type_->traverse (c);
+
+  // Containers.
+  //
+  {
+    instance<container_traits> t (c);
+    t->traverse (c);
+  }
+
+  // grow ()
+  //
+  if (generate_grow)
+  {
+    os << "static bool" << endl
+       << "grow (image_type&, " << truncated_vector << ");"
+       << endl;
+  }
+
+  // bind (image_type)
+  //
+  os << "static void" << endl
+     << "bind (" << bind_vector << ", image_type&, " <<
+    db << "::statement_kind);"
+     << endl;
+
+  // init (image, value)
+  //
+  os << "static " << (generate_grow ? "bool" : "void") << endl
+     << "init (image_type&, const value_type&, " << db << "::statement_kind);"
+     << endl;
+
+  // init (value, image)
+  //
+  os << "static void" << endl
+     << "init (value_type&, const image_type&, database*);"
+     << endl;
+
+  if (!has_a (c, test_container))
+  {
+    // get_null (image)
+    //
+    os << "static bool" << endl
+       << "get_null (const image_type&);"
+       << endl;
+
+    // set_null (image)
+    //
+    os << "static void" << endl
+       << "set_null (image_type&, " << db << "::statement_kind);"
+       << endl;
+  }
+
+  os << "};";
+}
+
 void relational::header::
 generate ()
 {
-- 
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