# GLOBALS
#======================================================================
-our $VERSION = '1.73';
+our $VERSION = '1.74';
# This would confuse some packagers
$VERSION = eval $VERSION if $VERSION =~ /_/; # numify for warning-free dev releases
SCALARREF => sub {$$arg}, # literal SQL, no quoting
HASHREF => sub {
- return () unless %$arg;
-
- my ($direction, $nulls, $val);
- foreach my $key (keys %$arg) {
- if ( $key =~ /^-(desc|asc)/i ) {
- puke "hash passed to _order_by must have exactly one of -desc or -asc"
- if defined $direction;
- $direction = $1;
- $val = $arg->{$key};
- } elsif ($key =~ /^-nulls$/i) {
- $nulls = $arg->{$key};
- puke "invalid value for -nulls" unless $nulls =~ /^(?:first|last)$/i;
- } else {
- puke "invalid key in hash passed to _order_by";
- }
+ # get first pair in hash
+ my ($key, $val, @rest) = %$arg;
+
+ return () unless $key;
+
+ if ( @rest or not $key =~ /^-(desc|asc)/i ) {
+ puke "hash passed to _order_by must have exactly one key (-desc or -asc)";
}
- puke "hash passed to _order_by must have exactly one of -desc or -asc"
- unless defined $direction;
+
+ my $direction = $1;
my @ret;
for my $c ($self->_order_by_chunks ($val)) {
},
});
- $sql .= ' ' . $self->_sqlcase($direction);
- $sql .= ' ' . $self->_sqlcase("nulls $nulls")
- if defined $nulls;
+ $sql = $sql . ' ' . $self->_sqlcase($direction);
push @ret, [ $sql, @bind];
}
Some functions take an order by clause. This can either be a scalar (just a
column name,) a hash of C<< { -desc => 'col' } >> or C<< { -asc => 'col' } >>,
-optionally with C<< -nulls => 'first' >> or C<< -nulls => 'last' >>,
or an array of either of the two previous forms. Examples:
Given | Will Generate
|
{-desc => 'colB'} | ORDER BY colB DESC
|
- { |
- -asc => 'colA', | ORDER BY colA ASC NULLS LAST
- -nulls => 'last', |
- } |
- |
['colA', {-asc => 'colB'}] | ORDER BY colA, colB ASC
|
{ -asc => [qw/colA colB/] } | ORDER BY colA ASC, colB ASC
|
- { |
- -asc => [qw/colA colB/] | ORDER BY colA ASC NULLS FIRST,
- -nulls => 'first' | colB ASC NULLS FIRST
- } |
- |
[ |
{ -asc => 'colA' }, | ORDER BY colA ASC, colB DESC,
{ -desc => [qw/colB/], | colC ASC, colD ASC