diff options
Diffstat (limited to 'odb/relational/mssql/schema.cxx')
| -rw-r--r-- | odb/relational/mssql/schema.cxx | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/odb/relational/mssql/schema.cxx b/odb/relational/mssql/schema.cxx index 3528de9..c61bbc2 100644 --- a/odb/relational/mssql/schema.cxx +++ b/odb/relational/mssql/schema.cxx @@ -36,6 +36,28 @@ namespace relational entry<sql_emitter> sql_emitter_; // + // File. + // + + struct sql_file: relational::sql_file, context + { + sql_file (const base& x): base (x) {} + + virtual void + prologue () + { + // Suppress the (x rows affected) messages from sqlcmd for DML + // statements. We only use DML for schema version management. + // + if ((model == 0 || model->version () != 0) && + !options.suppress_schema_version ()) + os << "SET NOCOUNT ON;" << endl + << endl; + } + }; + entry<sql_file> sql_file_; + + // // Drop. // @@ -565,6 +587,45 @@ namespace relational } }; entry<alter_table_post> alter_table_post_; + + // + // Schema version table. + // + + struct version_table: relational::version_table, context + { + version_table (base const& x): base (x) {} + + virtual void + create_table () + { + pre_statement (); + + os << "IF OBJECT_ID(" << quote_string (table_.string ()) << + ", " << quote_string ("U") << ") IS NULL" << endl + << " CREATE TABLE " << qt_ << " (" << endl + << " " << qn_ << " VARCHAR(256) NOT NULL PRIMARY KEY," << endl + << " " << qv_ << " BIGINT NOT NULL," << endl + << " " << qm_ << " BIT NOT NULL)" << endl; + + post_statement (); + } + + virtual void + create (sema_rel::version v) + { + pre_statement (); + + os << "IF NOT EXISTS (SELECT 1 FROM " << qt_ << " WHERE " << qn_ << + " = " << qs_ << ")" << endl + << " INSERT INTO " << qt_ << " (" << endl + << " " << qn_ << ", " << qv_ << ", " << qm_ << ")" << endl + << " VALUES (" << qs_ << ", " << v << ", 0)" << endl; + + post_statement (); + } + }; + entry<version_table> version_table_; } } } |