sub _collapse_cond {
my ($self, $where, $where_is_anded_array) = @_;
+ my $fin;
+
if (! $where) {
return;
}
or return;
# Consolidate various @conds back into something more compact
- my $fin;
-
for my $c (@conds) {
if (ref $c ne 'HASH') {
push @{$fin->{-and}}, $c;
}
else {
for my $col (sort keys %$c) {
- if (exists $fin->{$col}) {
- my ($l, $r) = ($fin->{$col}, $c->{$col});
-
- (ref $_ ne 'ARRAY' or !@$_) and $_ = [ -and => $_ ] for ($l, $r);
- if (@$l and @$r and $l->[0] eq $r->[0] and $l->[0] =~ /^\-and$/i) {
- $fin->{$col} = [ -and => map { @$_[1..$#$_] } ($l, $r) ];
- }
- else {
- $fin->{$col} = [ -and => $fin->{$col}, $c->{$col} ];
- }
+ # consolidate all -and nodes
+ if ($col =~ /^\-and$/i) {
+ push @{$fin->{-and}},
+ ref $c->{$col} eq 'ARRAY' ? @{$c->{$col}}
+ : ref $c->{$col} eq 'HASH' ? %{$c->{$col}}
+ : { $col => $c->{$col} }
+ ;
+ }
+ elsif ($col =~ /^\-/) {
+ push @{$fin->{-and}}, { $col => $c->{$col} };
+ }
+ elsif (exists $fin->{$col}) {
+ $fin->{$col} = [ -and => map {
+ (ref $_ eq 'ARRAY' and ($_->[0]||'') =~ /^\-and$/i )
+ ? @{$_}[1..$#$_]
+ : $_
+ ;
+ } ($fin->{$col}, $c->{$col}) ];
}
else {
$fin->{$col} = $c->{$col};
}
}
}
-
- # unroll single-element -and nodes
- if ( ref $fin->{-and} eq 'ARRAY' and @{$fin->{-and}} == 1 ) {
- my $piece = (delete $fin->{-and})->[0];
- if (ref $piece eq 'ARRAY') {
- $fin->{-or} = $fin->{-or} ? [ $piece, $fin->{-or} ] : $piece;
- }
- elsif (! exists $fin->{''}) {
- $fin->{''} = $piece;
- }
- }
-
- # compress same-column conds found in $fin
- for my $col ( keys %$fin ) {
- next unless ref $fin->{$col} eq 'ARRAY' and ($fin->{$col}[0]||'') eq '-and';
- my $val_bag = { map {
- (! defined $_ ) ? ( UNDEF => undef )
- : ( ! ref $_ or is_plain_value $_ ) ? ( "VAL_$_" => $_ )
- : ( ( 'SER_' . serialize $_ ) => $_ )
- } @{$fin->{$col}}[1 .. $#{$fin->{$col}}] };
-
- if (keys %$val_bag == 1 ) {
- ($fin->{$col}) = values %$val_bag;
- }
- else {
- $fin->{$col} = [ -and => map { $val_bag->{$_} } sort keys %$val_bag ];
- }
- }
-
- return $fin;
}
elsif (ref $where eq 'ARRAY') {
-
# we are always at top-level here, it is safe to dump empty *standalone* pieces
my $fin_idx;
my $sub_elt = $self->_collapse_cond({ $logic_mod => $where->[$i] })
or next;
- $fin_idx->{ serialize $sub_elt } = $sub_elt;
+ $fin_idx->{ "SER_" . serialize $sub_elt } = $sub_elt;
}
elsif (! length ref $where->[$i] ) {
- $fin_idx->{"$where->[$i]_$i"} = $self->_collapse_cond({ @{$where}[$i, $i+1] }) || next;
+ my $sub_elt = $self->_collapse_cond({ @{$where}[$i, $i+1] })
+ or next;
+
+ $fin_idx->{ "COL_$where->[$i]_" . serialize $sub_elt } = $sub_elt;
$i++;
}
else {
- $fin_idx->{ serialize $where->[$i] } = $self->_collapse_cond( $where->[$i] ) || next;
+ $fin_idx->{ "SER_" . serialize $where->[$i] } = $self->_collapse_cond( $where->[$i] ) || next;
}
}
return unless $fin_idx;
- return ( keys %$fin_idx == 1 ) ? (values %$fin_idx)[0] : {
- -or => [ map
- { ref $fin_idx->{$_} eq 'HASH' ? %{$fin_idx->{$_}} : $fin_idx->{$_} }
- sort keys %$fin_idx
- ]
+ $fin = ( keys %$fin_idx == 1 ) ? (values %$fin_idx)[0] : {
+ -or => [ map {
+ # unroll single-element hashes
+ ( ref $fin_idx->{$_} eq 'HASH' and keys %{$fin_idx->{$_}} == 1 )
+ ? %{$fin_idx->{$_}}
+ : $fin_idx->{$_}
+ } sort keys %$fin_idx ]
};
}
else {
# not a hash not an array
- return { '' => $where };
+ $fin = { '' => $where };
}
- die 'should not get here';
+ # unroll single-element -and's
+ while (
+ $fin->{-and}
+ and
+ @{$fin->{-and}} < 2
+ ) {
+ my $and = delete $fin->{-and};
+ last if @$and == 0;
+
+ # at this point we have @$and == 1
+ if (
+ ref $and->[0] eq 'HASH'
+ and
+ ! grep { exists $fin->{$_} } keys %{$and->[0]}
+ ) {
+ $fin = {
+ %$fin, %{$and->[0]}
+ };
+ }
+ }
+
+ # compress same-column conds found in $fin
+ for my $col ( grep { $_ !~ /^\-/ } keys %$fin ) {
+ next unless ref $fin->{$col} eq 'ARRAY' and ($fin->{$col}[0]||'') =~ /^\-and$/i;
+ my $val_bag = { map {
+ (! defined $_ ) ? ( UNDEF => undef )
+ : ( ! length ref $_ or is_plain_value $_ ) ? ( "VAL_$_" => $_ )
+ : ( ( 'SER_' . serialize $_ ) => $_ )
+ } @{$fin->{$col}}[1 .. $#{$fin->{$col}}] };
+
+ if (keys %$val_bag == 1 ) {
+ ($fin->{$col}) = values %$val_bag;
+ }
+ else {
+ $fin->{$col} = [ -and => map { $val_bag->{$_} } sort keys %$val_bag ];
+ }
+ }
+
+ return keys %$fin ? $fin : ();
}
sub _collapse_cond_unroll_pairs {
push @conds, { $lhs => $rhs };
}
}
+ # unroll func + { -value => ... }
+ elsif (
+ ref $rhs eq 'HASH'
+ and
+ ( my ($subop) = keys %$rhs ) == 1
+ and
+ length ref ((values %$rhs)[0])
+ and
+ my $vref = is_plain_value( (values %$rhs)[0] )
+ ) {
+ push @conds, { $lhs => { $subop => $$vref } }
+ }
else {
push @conds, { $lhs => $rhs };
}