add MAXMIN routine
This commit is contained in:
parent
a4f86be2c9
commit
38c2e8e06f
@ -323,6 +323,8 @@ sub handle_dbc_request {
|
||||
return $opentables{$tablename}->{$autocommit}->getAllNodeAttribs(@args);
|
||||
} elsif ($functionname eq 'getAllEntries') {
|
||||
return $opentables{$tablename}->{$autocommit}->getAllEntries(@args);
|
||||
} elsif ($functionname eq 'getMAXMINEntries') {
|
||||
return $opentables{$tablename}->{$autocommit}->getMAXMINEntries(@args);
|
||||
} elsif ($functionname eq 'writeAllEntries') {
|
||||
return $opentables{$tablename}->{$autocommit}->writeAllEntries(@args);
|
||||
} elsif ($functionname eq 'getAllAttribsWhere') {
|
||||
@ -3988,5 +3990,98 @@ sub output_table {
|
||||
print $fh "\n";
|
||||
return 0;
|
||||
}
|
||||
#--------------------------------------------------------------------------
|
||||
|
||||
=head3 getMAXMINEntries
|
||||
|
||||
Description: Select the rows in the Table which has the MAX and the row with the
|
||||
Min value for the input attribute.
|
||||
Currently only the auditlog and evenlog are setup to have such an attribute (recid).
|
||||
|
||||
Arguments:
|
||||
Table handle
|
||||
attribute name ( e.g. recid)
|
||||
|
||||
Returns:
|
||||
HASH
|
||||
max=> max value
|
||||
min=> min value
|
||||
Globals:
|
||||
|
||||
Error:
|
||||
|
||||
Example:
|
||||
|
||||
my $tabh = xCAT::Table->new($table);
|
||||
my $recs=$tabh->getEntries("recid"); # returns row with recid max value in database
|
||||
# and the row with the min value.
|
||||
|
||||
Comments:
|
||||
none
|
||||
|
||||
=cut
|
||||
|
||||
#--------------------------------------------------------------------------------
|
||||
sub getMAXMINEntries
|
||||
{
|
||||
my $self = shift;
|
||||
my $attr = shift;
|
||||
if ($dbworkerpid) {
|
||||
return dbc_call($self,'getMAXMINEntries',@_);
|
||||
}
|
||||
my $rets;
|
||||
my $query;
|
||||
my $xcatcfg=get_xcatcfg();
|
||||
|
||||
# delimit the disable column based on the DB
|
||||
my $disable= &delimitcol("disable");
|
||||
my $qstring;
|
||||
if ($xcatcfg =~ /^DB2:/) { # for DB2
|
||||
$qstring = "SELECT MAX (\"$attr\") FROM " . $self->{tabname} . " WHERE " . $disable . " is NULL or " . $disable . " in ('0','no','NO','No','nO')";
|
||||
} else {
|
||||
$qstring = "SELECT MAX($attr) FROM " . $self->{tabname} . " WHERE " . $disable . " is NULL or " . $disable . " in ('0','no','NO','No','nO')";
|
||||
}
|
||||
$query = $self->{dbh}->prepare($qstring);
|
||||
|
||||
$query->execute();
|
||||
while (my $data = $query->fetchrow_hashref())
|
||||
{
|
||||
foreach (keys %$data)
|
||||
{
|
||||
if ($data->{$_} =~ /^$/)
|
||||
{
|
||||
$rets->{"max"} = undef;
|
||||
} else {
|
||||
$rets->{"max"} = $data->{$_};
|
||||
|
||||
}
|
||||
last; # better only be one value for max
|
||||
|
||||
}
|
||||
}
|
||||
$query->finish();
|
||||
if ($xcatcfg =~ /^DB2:/) { # for DB2
|
||||
$qstring = "SELECT MIN (\"$attr\") FROM " . $self->{tabname} . " WHERE " . $disable . " is NULL or " . $disable . " in ('0','no','NO','No','nO')";
|
||||
} else {
|
||||
$qstring = "SELECT MIN($attr) FROM " . $self->{tabname} . " WHERE " . $disable . " is NULL or " . $disable . " in ('0','no','NO','No','nO')";
|
||||
}
|
||||
$query = $self->{dbh}->prepare($qstring);
|
||||
|
||||
$query->execute();
|
||||
while (my $data = $query->fetchrow_hashref())
|
||||
{
|
||||
foreach (keys %$data)
|
||||
{
|
||||
if ($data->{$_} =~ /^$/)
|
||||
{
|
||||
$rets->{"min"} = undef;
|
||||
} else {
|
||||
$rets->{"min"} = $data->{$_};
|
||||
}
|
||||
last; # better be only one value for min
|
||||
}
|
||||
}
|
||||
return $rets;
|
||||
}
|
||||
1;
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user