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Implement migrations; fix #153

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This commit is contained in:
Fabio Bas 2015-05-31 17:36:15 +02:00
parent 2de99475b0
commit 135205d368
4 changed files with 45 additions and 0 deletions
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19
servatrice/src/servatrice_database_interface.cpp
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@ -60,6 +60,25 @@ bool Servatrice_DatabaseInterface::openDatabase()
return false;
}
QSqlQuery *versionQuery = prepareQuery("select version from {prefix}_schema_version limit 1");
if (!execSqlQuery(versionQuery)) {
qCritical() << QString("[%1] Error opening database: unable to load database schema version (hint: ensure the cockatrice_schema_version exists)").arg(poolStr);
return false;
}
if (versionQuery->next()) {
const int dbversion = versionQuery->value(0).toInt();
const int expectedversion = DATABASE_SCHEMA_VERSION;
if(dbversion != expectedversion)
{
qCritical() << QString("[%1] Error opening database: the database schema version is too old, yum need to run the migrations to update it from version %2 to version %3").arg(poolStr).arg(dbversion).arg(expectedversion);
return false;
}
} else {
qCritical() << QString("[%1] Error opening database: unable to load database schema version (hint: ensure the cockatrice_schema_version contains a single record)").arg(poolStr);
return false;
}
// reset all prepared statements
qDeleteAll(preparedStatements);
preparedStatements.clear();

2
servatrice/src/servatrice_database_interface.h
View file

@ -9,6 +9,8 @@
#include "server.h"
#include "server_database_interface.h"
#define DATABASE_SCHEMA_VERSION 1
class Servatrice;
class Servatrice_DatabaseInterface : public Server_DatabaseInterface {