mirror of
https://github.com/ElvishArtisan/rivendell.git
synced 2025-04-16 06:02:36 +02:00
136 lines
3.0 KiB
C++
136 lines
3.0 KiB
C++
// modify.cpp
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//
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// Routines for --modify for rddbmgr(8)
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//
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// (C) Copyright 2018 Fred Gleason <fredg@paravelsystems.com>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2 as
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// published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public
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// License along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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#include <dbversion.h>
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#include <rddb.h>
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#include "rddbmgr.h"
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bool MainObject::Modify(QString *err_msg,int set_schema,
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const QString &set_version) const
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{
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*err_msg="ok";
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//
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// Determine Target Schema
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//
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if(set_schema>0) {
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if((set_schema<242)||(set_schema>RD_VERSION_DATABASE)) {
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*err_msg="unsupported schema";
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return false;
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}
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}
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else {
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if(set_version.isEmpty()) {
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set_schema=RD_VERSION_DATABASE;
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}
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else {
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if((set_schema=GetVersionSchema(set_version))==0) {
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*err_msg="invalid/unsupported Rivendell version";
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return false;
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}
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}
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}
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//
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// Update/Revert
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//
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int current_schema=GetCurrentSchema();
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if(current_schema==0) {
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*err_msg="unable to determine DB schema, aborting";
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return false;
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}
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if(current_schema>RD_VERSION_DATABASE) {
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*err_msg="unable to modify, unknown current schema";
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return false;
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}
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if(set_schema>current_schema) {
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return UpdateSchema(current_schema,set_schema,err_msg);
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}
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if(set_schema<current_schema) {
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return RevertSchema(current_schema,set_schema,err_msg);
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}
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return true;
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}
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int MainObject::GetCurrentSchema() const
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{
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int ret=0;
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QString sql=QString("select DB from VERSION");
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RDSqlQuery *q=new RDSqlQuery(sql);
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if(q->first()) {
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ret=q->value(0).toInt();
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}
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delete q;
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return ret;
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}
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int MainObject::GetVersionSchema(const QString &ver) const
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{
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QString version=ver;
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bool ok=false;
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//
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// Version -> Schema Map
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//
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std::map<QString,int> version_map;
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version_map["2.10"]=242;
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version_map["2.11"]=245;
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version_map["2.12"]=254;
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version_map["2.13"]=255;
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version_map["2.14"]=258;
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version_map["2.15"]=259;
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version_map["2.16"]=263;
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version_map["2.17"]=268;
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version_map["2.18"]=272;
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version_map["2.19"]=275;
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version_map["2.20"]=286;
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//
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// Normalize String
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//
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if(version.left(1).lower()=="v") {
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version=version.right(version.length()-1);
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}
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QStringList f0=f0.split(".",version);
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if(f0.size()!=3) {
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return 0;
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}
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for(int i=0;i<3;i++) {
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f0[i].toInt(&ok);
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if(!ok) {
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return 0;
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}
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}
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//
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// Lookup Schema
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//
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if(version_map.count(f0[0]+"."+f0[1])==0) {
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return 0;
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}
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return version_map[f0[0]+"."+f0[1]];
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}
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