my $virtual_column_idx = (scalar keys %{$args->{val_index}} ) + 1;
- $top_node_key_assembler = sprintf '$cur_row_ids{%d} = (%s);',
- $virtual_column_idx,
- "\n" . join( "\n or\n", @path_parts, qq{"\0\$rows_pos\0"} );
+ $top_node_key = "{'\xFF__IDVALPOS__${virtual_column_idx}__\xFF'}";
- $top_node_key = sprintf '{$cur_row_ids{%d}}', $virtual_column_idx;
+ $top_node_key_assembler = sprintf "'\xFF__IDVALPOS__%d__\xFF' = (%s);",
+ $virtual_column_idx,
+ "\n" . join( "\n or\n", @path_parts, qq{"\0\$rows_pos\0"} )
+ ;
$args->{collapse_map} = {
%{$args->{collapse_map}},
my ($data_assemblers, $stats) = __visit_infmap_collapse ($args);
- my $list_of_idcols = join(', ', sort { $a <=> $b } keys %{ $stats->{idcols_seen} } );
+ my @idcol_args = $args->{hri_style} ? ('', '') : (
+ '%cur_row_ids, ', # only declare the variable if we'll use it
+
+ sprintf( <<'EOS', join ', ', sort { $a <=> $b } keys %{ $stats->{idcols_seen} } ),
+ $cur_row_ids{$_} = defined($cur_row_data->[$_]) ? $cur_row_data->[$_] : "\0NULL\xFF$rows_pos\xFF$_\0"
+ for (%s);
+EOS
+ );
- my $parser_src = sprintf (<<'EOS', $list_of_idcols, $top_node_key, $top_node_key_assembler||'', join( "\n", @{$data_assemblers||[]} ) );
+ my $parser_src = sprintf (<<'EOS', @idcol_args, $top_node_key_assembler||'', $top_node_key, join( "\n", @{$data_assemblers||[]} ) );
### BEGIN LITERAL STRING EVAL
- my ($rows_pos, $result_pos, $cur_row_data, %%cur_row_ids, @collapse_idx, $is_new_res) = (0,0);
+ my ($rows_pos, $result_pos, $cur_row_data,%1$s @collapse_idx, $is_new_res) = (0,0);
# this loop is a bit arcane - the rationale is that the passed in
# $_[0] will either have only one row (->next) or will have all
# rows already pulled in (->all and/or unordered). Given that the
||
($_[1] and $_[1]->())
) {
+ # this code exists only when we are *not* assembling direct to HRI
+ #
# due to left joins some of the ids may be NULL/undef, and
# won't play well when used as hash lookups
# we also need to differentiate NULLs on per-row/per-col basis
# (otherwise folding of optional 1:1s will be greatly confused
- $cur_row_ids{$_} = defined $cur_row_data->[$_] ? $cur_row_data->[$_] : "\0NULL\xFF$rows_pos\xFF$_\0"
- for (%1$s);
+ %2$s
- # maybe(!) cache the top node id calculation
+ # in the case of an underdefined root - calculate the virtual id (otherwise no code at all)
%3$s
- $is_new_res = ! $collapse_idx[0]%2$s and (
+ $is_new_res = ! $collapse_idx[0]%4$s and (
$_[1] and $result_pos and (unshift @{$_[2]}, $cur_row_data) and last
);
# the rel assemblers
-%4$s
+%5$s
- $_[0][$result_pos++] = $collapse_idx[0]%2$s
+ $_[0][$result_pos++] = $collapse_idx[0]%4$s
if $is_new_res;
}
# !!! note - different var than the one above
# change the quoted placeholders to unquoted alias-references
$parser_src =~ s/ \' \xFF__VALPOS__(\d+)__\xFF \' /"\$cur_row_data->[$1]"/gex;
- $parser_src =~ s/ \' \xFF__IDVALPOS__(\d+)__\xFF \' /"\$cur_row_ids{$1}"/gex;
+ $parser_src =~ s/ \' \xFF__IDVALPOS__(\d+)__\xFF \' /$args->{hri_style} ? "\$cur_row_data->[$1]" : "\$cur_row_ids{$1}" /gex;
$parser_src = " { use strict; use warnings FATAL => 'all';\n$parser_src\n }";
}
if ($args->{hri_style}) {
- $src[$rel_src_pos] = sprintf( '%s and %s',
- "( defined '\xFF__VALPOS__${first_distinct_child_idcol}__\xFF' )",
- $src[$rel_src_pos],
- );
-
- splice @src, $rel_src_pos + 1, 0, sprintf ( '%s{%s} ||= %s;',
+ # start of wrap of the entire chain in a conditional
+ splice @src, $rel_src_pos, 0, sprintf "( ! defined %s )\n ? %s{%s} = %s\n : do {",
+ "'\xFF__VALPOS__${first_distinct_child_idcol}__\xFF'",
$node_idx_slot,
perlstring($rel),
- $relinfo->{-is_single} ? 'undef' : '[]',
- );
+ $relinfo->{-is_single} ? 'undef' : '[]'
+ ;
+
+ # end of wrap
+ push @src, '};'
}
else {
collapse => 1,
hri_style => 1,
}),
- ' my($rows_pos, $result_pos, $cur_row_data, %cur_row_ids, @collapse_idx, $is_new_res) = (0, 0);
+ ' my($rows_pos, $result_pos, $cur_row_data, @collapse_idx, $is_new_res) = (0, 0);
while ($cur_row_data = (
( $rows_pos >= 0 and $_[0][$rows_pos++] ) or do { $rows_pos = -1; undef } )
( $_[1] and $_[1]->() )
) {
- $cur_row_ids{$_} = defined $cur_row_data->[$_] ? $cur_row_data->[$_] : "\0NULL\xFF$rows_pos\xFF$_\0"
- for (0, 1, 3, 4, 5);
-
# a present cref in $_[1] implies lazy prefetch, implies a supplied stash in $_[2]
$_[1] and $result_pos and unshift(@{$_[2]}, $cur_row_data) and last
- if ( $is_new_res = ! $collapse_idx[0]{$cur_row_ids{4}}{$cur_row_ids{5}} );
+ if ( $is_new_res = ! $collapse_idx[0]{$cur_row_data->[4]}{$cur_row_data->[5]} );
# the rowdata itself for root node
- $collapse_idx[0]{$cur_row_ids{4}}{$cur_row_ids{5}} ||= { artist => $cur_row_data->[5], title => $cur_row_data->[4], year => $cur_row_data->[2] };
+ $collapse_idx[0]{$cur_row_data->[4]}{$cur_row_data->[5]} ||= { artist => $cur_row_data->[5], title => $cur_row_data->[4], year => $cur_row_data->[2] };
# prefetch data of single_track (placed in root)
- $collapse_idx[0]{$cur_row_ids{4}}{$cur_row_ids{5}}{single_track} ||= $collapse_idx[1]{$cur_row_ids{1}}{$cur_row_ids{4}}{$cur_row_ids{5}}
- if defined $cur_row_data->[1];
- $collapse_idx[0]{$cur_row_ids{4}}{$cur_row_ids{5}}{single_track} ||= undef;
+ (! defined($cur_row_data->[1]) ) ? $collapse_idx[0]{$cur_row_data->[4]}{$cur_row_data->[5]}{single_track} = undef : do {
+ $collapse_idx[0]{$cur_row_data->[4]}{$cur_row_data->[5]}{single_track} ||= $collapse_idx[1]{$cur_row_data->[1]}{$cur_row_data->[4]}{$cur_row_data->[5]};
- # prefetch data of cd (placed in single_track)
- $collapse_idx[1]{$cur_row_ids{1}}{$cur_row_ids{4}}{$cur_row_ids{5}}{cd} ||= $collapse_idx[2]{$cur_row_ids{1}}{$cur_row_ids{4}}{$cur_row_ids{5}};
+ # prefetch data of cd (placed in single_track)
+ $collapse_idx[1]{$cur_row_data->[1]}{$cur_row_data->[4]}{$cur_row_data->[5]}{cd} ||= $collapse_idx[2]{$cur_row_data->[1]}{$cur_row_data->[4]}{$cur_row_data->[5]};
- # prefetch data of artist ( placed in single_track->cd)
- $collapse_idx[2]{$cur_row_ids{1}}{$cur_row_ids{4}}{$cur_row_ids{5}}{artist} ||= $collapse_idx[3]{$cur_row_ids{1}}{$cur_row_ids{4}}{$cur_row_ids{5}} ||= { artistid => $cur_row_data->[1] };
+ # prefetch data of artist ( placed in single_track->cd)
+ $collapse_idx[2]{$cur_row_data->[1]}{$cur_row_data->[4]}{$cur_row_data->[5]}{artist} ||= $collapse_idx[3]{$cur_row_data->[1]}{$cur_row_data->[4]}{$cur_row_data->[5]} ||= { artistid => $cur_row_data->[1] };
- # prefetch data of cds (if available)
- ( defined $cur_row_data->[3] )
- and
- (! $collapse_idx[4]{$cur_row_ids{1}}{$cur_row_ids{3}}{$cur_row_ids{4}}{$cur_row_ids{5}} )
- and
- push @{$collapse_idx[3]{$cur_row_ids{1}}{$cur_row_ids{4}}{$cur_row_ids{5}}{cds}}, (
- $collapse_idx[4]{$cur_row_ids{1}}{$cur_row_ids{3}}{$cur_row_ids{4}}{$cur_row_ids{5}} = { cdid => $cur_row_data->[3] }
- );
- $collapse_idx[3]{$cur_row_ids{1}}{$cur_row_ids{4}}{$cur_row_ids{5}}{cds} ||= [];
+ # prefetch data of cds (if available)
+ (! defined $cur_row_data->[3] ) ? $collapse_idx[3]{$cur_row_data->[1]}{$cur_row_data->[4]}{$cur_row_data->[5]}{cds} = [] : do {
- # prefetch data of tracks (if available)
- ( defined $cur_row_data->[0] )
- and
- (! $collapse_idx[5]{$cur_row_ids{0}}{$cur_row_ids{1}}{$cur_row_ids{3}}{$cur_row_ids{4}}{$cur_row_ids{5}} )
- and
- push @{$collapse_idx[4]{$cur_row_ids{1}}{$cur_row_ids{3}}{$cur_row_ids{4}}{$cur_row_ids{5}}{tracks}}, (
- $collapse_idx[5]{$cur_row_ids{0}}{$cur_row_ids{1}}{$cur_row_ids{3}}{$cur_row_ids{4}}{$cur_row_ids{5}} = { title => $cur_row_data->[0] }
- );
- $collapse_idx[4]{$cur_row_ids{1}}{$cur_row_ids{3}}{$cur_row_ids{4}}{$cur_row_ids{5}}{tracks} ||= [];
+ (! $collapse_idx[4]{$cur_row_data->[1]}{$cur_row_data->[3]}{$cur_row_data->[4]}{$cur_row_data->[5]} )
+ and
+ push @{$collapse_idx[3]{$cur_row_data->[1]}{$cur_row_data->[4]}{$cur_row_data->[5]}{cds}}, (
+ $collapse_idx[4]{$cur_row_data->[1]}{$cur_row_data->[3]}{$cur_row_data->[4]}{$cur_row_data->[5]} = { cdid => $cur_row_data->[3] }
+ );
- $_[0][$result_pos++] = $collapse_idx[0]{$cur_row_ids{4}}{$cur_row_ids{5}}
+ # prefetch data of tracks (if available)
+ ( ! defined $cur_row_data->[0] ) ? $collapse_idx[4]{$cur_row_data->[1]}{$cur_row_data->[3]}{$cur_row_data->[4]}{$cur_row_data->[5]}{tracks} = [] : do {
+
+ (! $collapse_idx[5]{$cur_row_data->[0]}{$cur_row_data->[1]}{$cur_row_data->[3]}{$cur_row_data->[4]}{$cur_row_data->[5]} )
+ and
+ push @{$collapse_idx[4]{$cur_row_data->[1]}{$cur_row_data->[3]}{$cur_row_data->[4]}{$cur_row_data->[5]}{tracks}}, (
+ $collapse_idx[5]{$cur_row_data->[0]}{$cur_row_data->[1]}{$cur_row_data->[3]}{$cur_row_data->[4]}{$cur_row_data->[5]} = { title => $cur_row_data->[0] }
+ );
+ };
+ };
+ };
+
+ $_[0][$result_pos++] = $collapse_idx[0]{$cur_row_data->[4]}{$cur_row_data->[5]}
if $is_new_res;
}
splice @{$_[0]}, $result_pos;
collapse => 1,
hri_style => 1,
}),
- ' my($rows_pos, $result_pos, $cur_row_data, %cur_row_ids, @collapse_idx, $is_new_res) = (0, 0);
+ ' my($rows_pos, $result_pos, $cur_row_data, @collapse_idx, $is_new_res) = (0, 0);
while ($cur_row_data = (
( $rows_pos >= 0 and $_[0][$rows_pos++] ) or do { $rows_pos = -1; undef } )
( $_[1] and $_[1]->() )
) {
- $cur_row_ids{$_} = defined $$cur_row_data[$_] ? $$cur_row_data[$_] : "\0NULL\xFF$rows_pos\xFF$_\0"
- for (0, 2, 3, 4, 8);
-
# cache expensive set of ops in a non-existent rowid slot
- $cur_row_ids{10} = (
+ $cur_row_data->[10] = (
( ( defined $cur_row_data->[0] ) && (join "\xFF", q{}, $cur_row_data->[0], q{} ))
or
( ( defined $cur_row_data->[2] ) && (join "\xFF", q{}, $cur_row_data->[2], q{} ))
# a present cref in $_[1] implies lazy prefetch, implies a supplied stash in $_[2]
$_[1] and $result_pos and unshift(@{$_[2]}, $cur_row_data) and last
- if ( $is_new_res = ! $collapse_idx[0]{$cur_row_ids{10}} );
+ if ( $is_new_res = ! $collapse_idx[0]{$cur_row_data->[10]} );
- $collapse_idx[0]{$cur_row_ids{10}} ||= { year => $$cur_row_data[1] };
+ $collapse_idx[0]{$cur_row_data->[10]} ||= { year => $$cur_row_data[1] };
- (defined $cur_row_data->[0])
- and
- $collapse_idx[0]{$cur_row_ids{10}}{single_track} ||= ($collapse_idx[1]{$cur_row_ids{0}} ||= { trackid => $$cur_row_data[0] });
- $collapse_idx[0]{$cur_row_ids{10}}{single_track} ||= undef;
+ (! defined $cur_row_data->[0] ) ? $collapse_idx[0]{$cur_row_data->[10]}{single_track} = undef : do {
- $collapse_idx[1]{$cur_row_ids{0}}{cd} ||= $collapse_idx[2]{$cur_row_ids{0}};
+ $collapse_idx[0]{$cur_row_data->[10]}{single_track} ||= ($collapse_idx[1]{$cur_row_data->[0]} ||= { trackid => $$cur_row_data[0] });
- $collapse_idx[2]{$cur_row_ids{0}}{artist} ||= ($collapse_idx[3]{$cur_row_ids{0}} ||= { artistid => $$cur_row_data[6] });
+ $collapse_idx[1]{$cur_row_data->[0]}{cd} ||= $collapse_idx[2]{$cur_row_data->[0]};
- (defined $cur_row_data->[4])
- and
- (! $collapse_idx[4]{$cur_row_ids{0}}{$cur_row_ids{4}} )
- and
- push @{$collapse_idx[3]{$cur_row_ids{0}}{cds}}, (
- $collapse_idx[4]{$cur_row_ids{0}}{$cur_row_ids{4}} = { cdid => $$cur_row_data[4], genreid => $$cur_row_data[7], year => $$cur_row_data[5] }
- );
- $collapse_idx[3]{$cur_row_ids{0}}{cds} ||= [];
+ $collapse_idx[2]{$cur_row_data->[0]}{artist} ||= ($collapse_idx[3]{$cur_row_data->[0]} ||= { artistid => $$cur_row_data[6] });
- (defined $cur_row_data->[8])
- and
- (! $collapse_idx[5]{$cur_row_ids{0}}{$cur_row_ids{4}}{$cur_row_ids{8}} )
- and
- push @{$collapse_idx[4]{$cur_row_ids{0}}{$cur_row_ids{4}}{tracks}}, (
- $collapse_idx[5]{$cur_row_ids{0}}{$cur_row_ids{4}}{$cur_row_ids{8}} = { title => $$cur_row_data[8] }
- );
- $collapse_idx[4]{$cur_row_ids{0}}{$cur_row_ids{4}}{tracks} ||= [];
+ (! defined $cur_row_data->[4] ) ? $collapse_idx[3]{$cur_row_data->[0]}{cds} = [] : do {
- (defined $cur_row_data->[2])
- and
- (! $collapse_idx[6]{$cur_row_ids{2}}{$cur_row_ids{3}} )
- and
- push @{$collapse_idx[0]{$cur_row_ids{10}}{tracks}}, (
- $collapse_idx[6]{$cur_row_ids{2}}{$cur_row_ids{3}} = { cd => $$cur_row_data[2], title => $$cur_row_data[3] }
- );
- $collapse_idx[0]{$cur_row_ids{10}}{tracks} ||= [];
+ (! $collapse_idx[4]{$cur_row_data->[0]}{$cur_row_data->[4]} )
+ and
+ push @{$collapse_idx[3]{$cur_row_data->[0]}{cds}}, (
+ $collapse_idx[4]{$cur_row_data->[0]}{$cur_row_data->[4]} = { cdid => $$cur_row_data[4], genreid => $$cur_row_data[7], year => $$cur_row_data[5] }
+ );
- $_[0][$result_pos++] = $collapse_idx[0]{$cur_row_ids{10}}
+ (! defined $cur_row_data->[8] ) ? $collapse_idx[4]{$cur_row_data->[0]}{$cur_row_data->[4]}{tracks} = [] : do {
+
+ (! $collapse_idx[5]{$cur_row_data->[0]}{$cur_row_data->[4]}{$cur_row_data->[8]} )
+ and
+ push @{$collapse_idx[4]{$cur_row_data->[0]}{$cur_row_data->[4]}{tracks}}, (
+ $collapse_idx[5]{$cur_row_data->[0]}{$cur_row_data->[4]}{$cur_row_data->[8]} = { title => $$cur_row_data[8] }
+ );
+ };
+ };
+ };
+
+ (! defined $cur_row_data->[2] ) ? $collapse_idx[0]{$cur_row_data->[10]}{tracks} = [] : do {
+ (! $collapse_idx[6]{$cur_row_data->[2]}{$cur_row_data->[3]} )
+ and
+ push @{$collapse_idx[0]{$cur_row_data->[10]}{tracks}}, (
+ $collapse_idx[6]{$cur_row_data->[2]}{$cur_row_data->[3]} = { cd => $$cur_row_data[2], title => $$cur_row_data[3] }
+ );
+ };
+
+ $_[0][$result_pos++] = $collapse_idx[0]{$cur_row_data->[10]}
if $is_new_res;
}
projects / dbsrgits/DBIx-Class.git / commitdiff