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2018-05-31 Patrick Linstruth <patrick@deltecent.com>

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* Implemented purging of STACK_* tables for RDMaint(1) in
        'utils/rdmaint/rdmaint.cpp' and 'utils/rdmaint/rdmaint.h'.
This commit is contained in:
Fred Gleason 2018-05-31 16:54:23 +00:00
commit 15b0f638d8
3 changed files with 58 additions and 0 deletions
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3
ChangeLog
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@ -16992,3 +16992,6 @@
* Dropped the 'SERVICES.MUS_LENGTH_OFFSET' field from the database.
* Dropped the 'SERVICES.MUS_LENGTH_LENGTH' field from the database.
* Incremented the database version to 286.
2018-05-31 Patrick Linstruth <patrick@deltecent.com>
* Implemented purging of STACK_* tables for RDMaint(1) in
'utils/rdmaint/rdmaint.cpp' and 'utils/rdmaint/rdmaint.h'.

54
utils/rdmaint/rdmaint.cpp
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@ -127,6 +127,7 @@ void MainObject::RunSystemMaintenance()
PurgeElr();
PurgeGpioEvents();
PurgeWebapiAuths();
PurgeStacks();
RehashCuts();
}
@ -286,6 +287,59 @@ void MainObject::PurgeWebapiAuths()
}
void MainObject::PurgeStacks()
{
QString sql;
RDSqlQuery *q;
RDSqlQuery *q1;
RDSqlQuery *q2;
int stackid;
int stacksize;
int artistsep=50000;
int titlesep=50000;
sql="select MAX(ARTISTSEP) from CLOCKS";
q=new RDSqlQuery(sql);
if(q->next()) {
artistsep=q->value(0).toInt();
}
delete q;
sql="select MAX(TITLE_SEP) from EVENTS";
q=new RDSqlQuery(sql);
if(q->next()) {
titlesep=q->value(0).toInt();
}
delete q;
stacksize=(artistsep<titlesep)?titlesep:artistsep;
sql="select NAME from SERVICES";
q=new RDSqlQuery(sql);
while(q->next()) {
QString tablename=q->value(0).toString()+"_STACK";
tablename.replace(" ","_");
sql=QString().sprintf("SELECT MAX(SCHED_STACK_ID) from %s",(const char*)tablename);
q1=new RDSqlQuery(sql);
if (q1->next())
{
stackid=q1->value(0).toUInt();
if (stackid-stacksize > 0) {
sql=QString().sprintf("DELETE from `%s` where SCHED_STACK_ID <= %d", (const char*)tablename, stackid-stacksize);
q2=new RDSqlQuery(sql);
delete q2;
sql=QString().sprintf("UPDATE `%s` SET SCHED_STACK_ID=SCHED_STACK_ID-%d", (const char*)tablename, stackid-stacksize);
q2=new RDSqlQuery(sql);
delete q2;
}
}
delete q1;
}
delete q;
}
void MainObject::RehashCuts()
{
QString sql;

1
utils/rdmaint/rdmaint.h
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@ -39,6 +39,7 @@ class MainObject : public QObject
void PurgeDropboxes();
void PurgeGpioEvents();
void PurgeWebapiAuths();
void PurgeStacks();
void RehashCuts();
bool maint_verbose;
bool maint_system;