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author | Boris Kolpackov <boris@codesynthesis.com> | 2011-10-24 16:32:51 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2011-10-24 16:32:51 +0200 |
commit | 08a47c70ad517b80b72914d47d547463f576bcd3 (patch) | |
tree | 8a6ab07cf05e8668ea3c91735dfe97e2a98f3f05 /odb/semantics/relational/index.hxx | |
parent | a976183dc95a8b7a9bd7a308c3ea94f08982c426 (diff) |
Generate database schema from database model instead of C++ model
We now first create the so-called database model from C++ model and
then use that to generate the database schema. The new approach also
adds more general support for primary/foreign keys, including multi-
column keys. Finally, for MySQL we now generate out-of-line foreign
key definitions. Because MySQL does not support deferred constraints
checking, deferred foreign keys are written commented out, for
documentation.
Diffstat (limited to 'odb/semantics/relational/index.hxx')
-rw-r--r-- | odb/semantics/relational/index.hxx | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/odb/semantics/relational/index.hxx b/odb/semantics/relational/index.hxx new file mode 100644 index 0000000..ee6b202 --- /dev/null +++ b/odb/semantics/relational/index.hxx @@ -0,0 +1,44 @@ +// file : odb/semantics/relational/index.hxx +// author : Boris Kolpackov <boris@codesynthesis.com> +// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC +// license : GNU GPL v3; see accompanying LICENSE file + +#ifndef ODB_SEMANTICS_RELATIONAL_INDEX_HXX +#define ODB_SEMANTICS_RELATIONAL_INDEX_HXX + +#include <odb/semantics/relational/elements.hxx> +#include <odb/semantics/relational/key.hxx> +#include <odb/semantics/relational/table.hxx> + +namespace semantics +{ + namespace relational + { + // Note that unlike other keys, indexes are defined in the model + // scope, not table scope. + // + class index: public key + { + public: + relational::table& + table () const + { + return contains_begin ()->column ().table (); + } + + public: + index (string const& id) + : key (id) + { + } + + virtual string + kind () const + { + return "index"; + } + }; + } +} + +#endif // ODB_SEMANTICS_RELATIONAL_INDEX_HXX |