package liquibase.sqlgenerator.core;
import liquibase.CatalogAndSchema;
import liquibase.database.Database;
import liquibase.database.core.MSSQLDatabase;
import liquibase.sql.Sql;
import liquibase.sql.UnparsedSql;
import liquibase.sqlgenerator.SqlGeneratorChain;
import liquibase.statement.core.GetViewDefinitionStatement;
import liquibase.structure.core.View;
public class GetViewDefinitionGeneratorMSSQL extends GetViewDefinitionGenerator {
@Override
public int getPriority() {
return PRIORITY_DATABASE;
}
@Override
public boolean supports(GetViewDefinitionStatement statement, Database database) {
return database instanceof MSSQLDatabase;
}
@Override
public Sql[] generateSql(GetViewDefinitionStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) {
CatalogAndSchema schema = new CatalogAndSchema(statement.getCatalogName(), statement.getSchemaName()).customize(database);
boolean sql2005OrLater = true;
try {
sql2005OrLater = database.getDatabaseMajorVersion() >= 9;
} catch (Exception ignored) {
// Assume 2005 or later
}
String viewNameEscaped = database.escapeObjectName(schema.getCatalogName(), schema.getSchemaName(), statement.getViewName(), View.class);
String sql;
if (sql2005OrLater) {
sql = "SELECT OBJECT_DEFINITION(OBJECT_ID(N'" + database.escapeStringForDatabase(viewNameEscaped) + "')) AS [ObjectDefinition]";
} else {
sql =
"SELECT [c].[text] " +
"FROM [dbo].[syscomments] AS [c] " +
"WHERE [c].[id] = OBJECT_ID(N'" + database.escapeStringForDatabase(viewNameEscaped) + "') " +
"ORDER BY [c].[colid]";
}
return new Sql[] { new UnparsedSql(sql) };
}
}