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// file : odb/relational/schema-source.cxx
// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
// license : GNU GPL v3; see accompanying LICENSE file
#include <odb/relational/schema-source.hxx>
#include <odb/relational/generate.hxx>
using namespace std;
namespace relational
{
namespace schema
{
void
generate_source ()
{
context ctx;
ostream& os (ctx.os);
database db (ctx.db);
options const& ops (ctx.options);
sema_rel::model& model (*ctx.model);
string const& schema_name (ops.schema_name ()[db]);
instance<cxx_emitter> emitter;
emitter_ostream emitter_os (*emitter);
schema_format format (schema_format::embedded);
if (!model.names_empty ())
{
os << "namespace odb"
<< "{"
<< "static bool" << endl
<< "create_schema (database& db, unsigned short pass, bool drop)"
<< "{"
<< "ODB_POTENTIALLY_UNUSED (db);"
<< "ODB_POTENTIALLY_UNUSED (pass);"
<< "ODB_POTENTIALLY_UNUSED (drop);"
<< endl;
// Drop.
//
if (!ops.omit_drop ())
{
bool close (false);
os << "if (drop)"
<< "{";
instance<drop_model> dmodel (*emitter, emitter_os, format);
instance<drop_table> dtable (*emitter, emitter_os, format);
trav_rel::qnames names;
dmodel >> names >> dtable;
for (unsigned short pass (1); pass < 3; ++pass)
{
emitter->pass (pass);
dmodel->pass (pass);
dtable->pass (pass);
dmodel->traverse (model);
close = close || !emitter->empty ();
}
if (close) // Close the last case and the switch block.
os << "return false;"
<< "}" // case
<< "}"; // switch
os << "}";
}
// Create.
//
if (!ops.omit_create ())
{
bool close (false);
if (ops.omit_drop ())
os << "if (!drop)";
else
os << "else";
os << "{";
instance<create_model> cmodel (*emitter, emitter_os, format);
instance<create_table> ctable (*emitter, emitter_os, format);
trav_rel::qnames names;
cmodel >> names >> ctable;
for (unsigned short pass (1); pass < 3; ++pass)
{
emitter->pass (pass);
cmodel->pass (pass);
ctable->pass (pass);
cmodel->traverse (model);
close = close || !emitter->empty ();
}
if (close) // Close the last case and the switch block.
os << "return false;"
<< "}" // case
<< "}"; // switch
os << "}";
}
os << "return false;"
<< "}";
os << "static const schema_catalog_entry" << endl
<< "create_schema_entry_ (" << endl
<< "id_" << db << "," << endl
<< context::strlit (schema_name) << "," << endl
<< "&create_schema);"
<< endl;
os << "}";
}
}
}
}
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