fallback => 1;
use Data::Page;
use Storable;
+ use Data::Dumper;
use Scalar::Util qw/weaken/;
use DBIx::Class::ResultSetColumn;
my ($source, $attrs) = @_;
weaken $source;
- $attrs = Storable::dclone($attrs || {}); # { %{ $attrs || {} } };
- #use Data::Dumper; warn Dumper($attrs);
- my $alias = ($attrs->{alias} ||= 'me');
-
- $attrs->{columns} ||= delete $attrs->{cols} if $attrs->{cols};
- delete $attrs->{as} if $attrs->{columns};
- $attrs->{columns} ||= [ $source->columns ] unless $attrs->{select};
- $attrs->{select} = [
- map { m/\./ ? $_ : "${alias}.$_" } @{delete $attrs->{columns}}
- ] if $attrs->{columns};
- $attrs->{as} ||= [
- map { m/^\Q$alias.\E(.+)$/ ? $1 : $_ } @{$attrs->{select}}
- ];
- if (my $include = delete $attrs->{include_columns}) {
- push(@{$attrs->{select}}, @$include);
- push(@{$attrs->{as}}, map { m/([^.]+)$/; $1; } @$include);
- }
- #use Data::Dumper; warn Dumper(@{$attrs}{qw/select as/});
-
- $attrs->{from} ||= [ { $alias => $source->from } ];
- $attrs->{seen_join} ||= {};
- my %seen;
- if (my $join = delete $attrs->{join}) {
- foreach my $j (ref $join eq 'ARRAY' ? @$join : ($join)) {
- if (ref $j eq 'HASH') {
- $seen{$_} = 1 foreach keys %$j;
- } else {
- $seen{$j} = 1;
- }
- }
- push(@{$attrs->{from}}, $source->resolve_join(
- $join, $attrs->{alias}, $attrs->{seen_join})
- );
- }
-
- $attrs->{group_by} ||= $attrs->{select} if delete $attrs->{distinct};
- $attrs->{order_by} = [ $attrs->{order_by} ] if
- $attrs->{order_by} and !ref($attrs->{order_by});
- $attrs->{order_by} ||= [];
-
- my $collapse = $attrs->{collapse} || {};
- if (my $prefetch = delete $attrs->{prefetch}) {
- my @pre_order;
- foreach my $p (ref $prefetch eq 'ARRAY' ? @$prefetch : ($prefetch)) {
- if ( ref $p eq 'HASH' ) {
- foreach my $key (keys %$p) {
- push(@{$attrs->{from}}, $source->resolve_join($p, $attrs->{alias}))
- unless $seen{$key};
- }
- } else {
- push(@{$attrs->{from}}, $source->resolve_join($p, $attrs->{alias}))
- unless $seen{$p};
- }
- my @prefetch = $source->resolve_prefetch(
- $p, $attrs->{alias}, {}, \@pre_order, $collapse);
- push(@{$attrs->{select}}, map { $_->[0] } @prefetch);
- push(@{$attrs->{as}}, map { $_->[1] } @prefetch);
- }
- push(@{$attrs->{order_by}}, @pre_order);
- }
- $attrs->{collapse} = $collapse;
- # use Data::Dumper; warn Dumper($collapse) if keys %{$collapse};
if ($attrs->{page}) {
$attrs->{rows} ||= 10;
$attrs->{offset} += ($attrs->{rows} * ($attrs->{page} - 1));
}
+ $attrs->{alias} ||= 'me';
+
bless {
result_source => $source,
result_class => $attrs->{result_class} || $source->result_class,
cond => $attrs->{where},
- from => $attrs->{from},
- collapse => $collapse,
+ # from => $attrs->{from},
+ # collapse => $collapse,
count => undef,
page => delete $attrs->{page},
pager => undef,
sub search_rs {
my $self = shift;
- my $attrs = { %{$self->{attrs}} };
- my $having = delete $attrs->{having};
- $attrs = { %$attrs, %{ pop(@_) } } if @_ > 1 and ref $_[$#_] eq 'HASH';
+ my $our_attrs = { %{$self->{attrs}} };
+ my $having = delete $our_attrs->{having};
+ my $attrs = {};
+ $attrs = pop(@_) if @_ > 1 and ref $_[$#_] eq 'HASH';
+
+ # merge new attrs into old
+ foreach my $key (qw/join prefetch/) {
+ next unless (exists $attrs->{$key});
+ if (exists $our_attrs->{$key}) {
+ $our_attrs->{$key} = $self->_merge_attr($our_attrs->{$key}, $attrs->{$key});
+ } else {
+ $our_attrs->{$key} = $attrs->{$key};
+ }
+ delete $attrs->{$key};
+ }
+
+ if (exists $our_attrs->{prefetch}) {
+ $our_attrs->{join} = $self->_merge_attr($our_attrs->{join}, $our_attrs->{prefetch}, 1);
+ }
+ my $new_attrs = { %{$our_attrs}, %{$attrs} };
+
+ # merge new where and having into old
my $where = (@_
? ((@_ == 1 || ref $_[0] eq "HASH")
? shift
: {@_}))
: undef());
if (defined $where) {
- $attrs->{where} = (defined $attrs->{where}
+ $new_attrs->{where} = (defined $new_attrs->{where}
? { '-and' =>
[ map { ref $_ eq 'ARRAY' ? [ -or => $_ ] : $_ }
- $where, $attrs->{where} ] }
+ $where, $new_attrs->{where} ] }
: $where);
}
if (defined $having) {
- $attrs->{having} = (defined $attrs->{having}
+ $new_attrs->{having} = (defined $new_attrs->{having}
? { '-and' =>
[ map { ref $_ eq 'ARRAY' ? [ -or => $_ ] : $_ }
- $having, $attrs->{having} ] }
+ $having, $new_attrs->{having} ] }
: $having);
}
- my $rs = (ref $self)->new($self->result_source, $attrs);
+ my $rs = (ref $self)->new($self->result_source, $new_attrs);
+ $rs->{_parent_rs} = $self->{_parent_rs} if ($self->{_parent_rs}); #XXX - hack to pass through parent of related resultsets
unless (@_) { # no search, effectively just a clone
my $rows = $self->get_cache;
# Add the ResultSet's alias
foreach my $key (grep { ! m/\./ } keys %$unique_query) {
-- $unique_query->{"$self->{attrs}{alias}.$key"} = delete $unique_query->{$key};
++ my $alias = $self->{attrs}->{alias};
++ $unique_query->{"$alias.$key"} = delete $unique_query->{$key};
}
push @unique_queries, $unique_query if %$unique_query;
# Run the query
if (keys %$attrs) {
my $rs = $self->search($query, $attrs);
- return keys %{$rs->{collapse}} ? $rs->next : $rs->single;
+ $rs->_resolve;
+ return keys %{$rs->{_attrs}->{collapse}} ? $rs->next : $rs->single;
}
else {
- return keys %{$self->{collapse}}
+ $self->_resolve;
+ return (keys %{$self->{_attrs}->{collapse}})
? $self->search($query)->next
: $self->single($query);
}
sub cursor {
my ($self) = @_;
- my $attrs = { %{$self->{attrs}} };
+
+ $self->_resolve;
+ my $attrs = { %{$self->{_attrs}} };
return $self->{cursor}
- ||= $self->result_source->storage->select($self->{from}, $attrs->{select},
+ ||= $self->result_source->storage->select($attrs->{from}, $attrs->{select},
$attrs->{where},$attrs);
}
sub single {
my ($self, $where) = @_;
- my $attrs = { %{$self->{attrs}} };
+ $self->_resolve;
+ my $attrs = { %{$self->{_attrs}} };
if ($where) {
if (defined $attrs->{where}) {
$attrs->{where} = {
$attrs->{where} = $where;
}
}
+
my @data = $self->result_source->storage->select_single(
- $self->{from}, $attrs->{select},
+ $attrs->{from}, $attrs->{select},
$attrs->{where},$attrs);
return (@data ? $self->_construct_object(@data) : ());
}
@{delete $self->{stashed_row}} :
$self->cursor->next
);
- # warn Dumper(\@row); use Data::Dumper;
return unless (@row);
return $self->_construct_object(@row);
}
+ sub _resolve {
+ my $self = shift;
+
+ return if(exists $self->{_attrs}); #return if _resolve has already been called
+
+ my $attrs = $self->{attrs};
+ my $source = ($self->{_parent_rs}) ? $self->{_parent_rs} : $self->{result_source};
+
+ # XXX - lose storable dclone
+ my $record_filter = delete $attrs->{record_filter} if (defined $attrs->{record_filter});
+ $attrs = Storable::dclone($attrs || {}); # { %{ $attrs || {} } };
+ $attrs->{record_filter} = $record_filter if ($record_filter);
+ $self->{attrs}->{record_filter} = $record_filter if ($record_filter);
+
+ my $alias = $attrs->{alias};
+
+ $attrs->{columns} ||= delete $attrs->{cols} if $attrs->{cols};
+ delete $attrs->{as} if $attrs->{columns};
+ $attrs->{columns} ||= [ $self->{result_source}->columns ] unless $attrs->{select};
+ my $select_alias = ($self->{_parent_rs}) ? $self->{attrs}->{_live_join} : $alias;
+ $attrs->{select} = [
+ map { m/\./ ? $_ : "${select_alias}.$_" } @{delete $attrs->{columns}}
+ ] if $attrs->{columns};
+ $attrs->{as} ||= [
+ map { m/^\Q$alias.\E(.+)$/ ? $1 : $_ } @{$attrs->{select}}
+ ];
+ if (my $include = delete $attrs->{include_columns}) {
+ push(@{$attrs->{select}}, @$include);
+ push(@{$attrs->{as}}, map { m/([^.]+)$/; $1; } @$include);
+ }
+
+ $attrs->{from} ||= [ { $alias => $source->from } ];
+ $attrs->{seen_join} ||= {};
+ my %seen;
+ if (my $join = delete $attrs->{join}) {
+ foreach my $j (ref $join eq 'ARRAY' ? @$join : ($join)) {
+ if (ref $j eq 'HASH') {
+ $seen{$_} = 1 foreach keys %$j;
+ } else {
+ $seen{$j} = 1;
+ }
+ }
+
+ push(@{$attrs->{from}}, $source->resolve_join($join, $attrs->{alias}, $attrs->{seen_join}));
+ }
+ $attrs->{group_by} ||= $attrs->{select} if delete $attrs->{distinct};
+ $attrs->{order_by} = [ $attrs->{order_by} ] if
+ $attrs->{order_by} and !ref($attrs->{order_by});
+ $attrs->{order_by} ||= [];
+
+ my $collapse = $attrs->{collapse} || {};
+ if (my $prefetch = delete $attrs->{prefetch}) {
+ my @pre_order;
+ foreach my $p (ref $prefetch eq 'ARRAY' ? @$prefetch : ($prefetch)) {
+ if ( ref $p eq 'HASH' ) {
+ foreach my $key (keys %$p) {
+ push(@{$attrs->{from}}, $source->resolve_join($p, $attrs->{alias}))
+ unless $seen{$key};
+ }
+ } else {
+ push(@{$attrs->{from}}, $source->resolve_join($p, $attrs->{alias}))
+ unless $seen{$p};
+ }
+ my @prefetch = $source->resolve_prefetch(
+ $p, $attrs->{alias}, {}, \@pre_order, $collapse);
+ push(@{$attrs->{select}}, map { $_->[0] } @prefetch);
+ push(@{$attrs->{as}}, map { $_->[1] } @prefetch);
+ }
+ push(@{$attrs->{order_by}}, @pre_order);
+ }
+ $attrs->{collapse} = $collapse;
+ $self->{_attrs} = $attrs;
+ }
+
+ sub _merge_attr {
+ my ($self, $a, $b, $is_prefetch) = @_;
+
+ return $b unless $a;
+ if (ref $b eq 'HASH' && ref $a eq 'HASH') {
+ foreach my $key (keys %{$b}) {
+ if (exists $a->{$key}) {
+ $a->{$key} = $self->_merge_attr($a->{$key}, $b->{$key}, $is_prefetch);
+ } else {
+ $a->{$key} = delete $b->{$key};
+ }
+ }
+ return $a;
+ } else {
+ $a = [$a] unless (ref $a eq 'ARRAY');
+ $b = [$b] unless (ref $b eq 'ARRAY');
+
+ my $hash = {};
+ my $array = [];
+ foreach ($a, $b) {
+ foreach my $element (@{$_}) {
+ if (ref $element eq 'HASH') {
+ $hash = $self->_merge_attr($hash, $element, $is_prefetch);
+ } elsif (ref $element eq 'ARRAY') {
+ $array = [@{$array}, @{$element}];
+ } else {
+ if (($b == $_) && $is_prefetch) {
+ $self->_merge_array($array, $element, $is_prefetch);
+ } else {
+ push(@{$array}, $element);
+ }
+ }
+ }
+ }
+
+ if ((keys %{$hash}) && (scalar(@{$array} > 0))) {
+ return [$hash, @{$array}];
+ } else {
+ return (keys %{$hash}) ? $hash : $array;
+ }
+ }
+ }
+
+ sub _merge_array {
+ my ($self, $a, $b) = @_;
+
+ $b = [$b] unless (ref $b eq 'ARRAY');
+ # add elements from @{$b} to @{$a} which aren't already in @{$a}
+ foreach my $b_element (@{$b}) {
+ push(@{$a}, $b_element) unless grep {$b_element eq $_} @{$a};
+ }
+ }
+
sub _construct_object {
my ($self, @row) = @_;
- my @as = @{ $self->{attrs}{as} };
-
+ my @as = @{ $self->{_attrs}{as} };
+
my $info = $self->_collapse_result(\@as, \@row);
-
my $new = $self->result_class->inflate_result($self->result_source, @$info);
-
- $new = $self->{attrs}{record_filter}->($new)
- if exists $self->{attrs}{record_filter};
+ $new = $self->{_attrs}{record_filter}->($new)
+ if exists $self->{_attrs}{record_filter};
return $new;
}
sub _collapse_result {
my ($self, $as, $row, $prefix) = @_;
+ my $live_join = $self->{attrs}->{_live_join} ||="";
my %const;
my @copy = @$row;
my $info = [ {}, {} ];
foreach my $key (keys %const) {
- if (length $key) {
+ if (length $key && $key ne $live_join) {
my $target = $info;
my @parts = split(/\./, $key);
foreach my $p (@parts) {
if (defined $prefix) {
@collapse = map {
m/^\Q${prefix}.\E(.+)$/ ? ($1) : ()
- } keys %{$self->{collapse}}
+ } keys %{$self->{_attrs}->{collapse}}
} else {
- @collapse = keys %{$self->{collapse}};
+ @collapse = keys %{$self->{_attrs}->{collapse}};
};
if (@collapse) {
$target = $target->[1]->{$p} ||= [];
}
my $c_prefix = (defined($prefix) ? "${prefix}.${c}" : $c);
- my @co_key = @{$self->{collapse}{$c_prefix}};
+ my @co_key = @{$self->{_attrs}->{collapse}{$c_prefix}};
my %co_check = map { ($_, $target->[0]->{$_}); } @co_key;
my $tree = $self->_collapse_result($as, $row, $c_prefix);
my (@final, @raw);
$row = $self->{stashed_row} = \@raw;
$tree = $self->_collapse_result($as, $row, $c_prefix);
}
- @$target = (@final ? @final : [ {}, {} ]);
+ @$target = (@final ? @final : [ {}, {} ]);
# single empty result to indicate an empty prefetched has_many
}
-
return $info;
}
sub _count { # Separated out so pager can get the full count
my $self = shift;
my $select = { count => '*' };
- my $attrs = { %{ $self->{attrs} } };
+
+ $self->_resolve;
+ my $attrs = { %{ $self->{_attrs} } };
if (my $group_by = delete $attrs->{group_by}) {
delete $attrs->{having};
my @distinct = (ref $group_by ? @$group_by : ($group_by));
}
$select = { count => { distinct => \@distinct } };
- #use Data::Dumper; die Dumper $select;
}
$attrs->{select} = $select;
# offset, order by and page are not needed to count. record_filter is cdbi
delete $attrs->{$_} for qw/rows offset order_by page pager record_filter/;
-
my ($count) = (ref $self)->new($self->result_source, $attrs)->cursor->next;
return $count;
}
my @obj;
- if (keys %{$self->{collapse}}) {
+ # TODO: don't call resolve here
+ $self->_resolve;
+ if (keys %{$self->{_attrs}->{collapse}}) {
+ # if ($self->{attrs}->{prefetch}) {
# Using $self->cursor->all is really just an optimisation.
# If we're collapsing has_many prefetches it probably makes
# very little difference, and this is cleaner than hacking
# _construct_object to survive the approach
- $self->cursor->reset;
my @row = $self->cursor->next;
while (@row) {
push(@obj, $self->_construct_object(@row));
sub reset {
my ($self) = @_;
+ delete $self->{_attrs} if (exists $self->{_attrs});
+
$self->{all_cache_position} = 0;
$self->cursor->reset;
return $self;
sub set_cache {
my ( $self, $data ) = @_;
$self->throw_exception("set_cache requires an arrayref")
- if defined($data) && (ref $data ne 'ARRAY');
+ if defined($data) && (ref $data ne 'ARRAY');
$self->{all_cache} = $data;
}
sub related_resultset {
my ( $self, $rel ) = @_;
+
$self->{related_resultsets} ||= {};
return $self->{related_resultsets}{$rel} ||= do {
- #warn "fetching related resultset for rel '$rel'";
+ #warn "fetching related resultset for rel '$rel' " . $self->result_source->{name};
my $rel_obj = $self->result_source->relationship_info($rel);
$self->throw_exception(
"search_related: result source '" . $self->result_source->name .
"' has no such relationship ${rel}")
unless $rel_obj; #die Dumper $self->{attrs};
- my $rs = $self->search(undef, { join => $rel });
- my $alias = defined $rs->{attrs}{seen_join}{$rel}
- && $rs->{attrs}{seen_join}{$rel} > 1
- ? join('_', $rel, $rs->{attrs}{seen_join}{$rel})
- : $rel;
-
- $self->result_source->schema->resultset($rel_obj->{class}
+ my $rs = $self->result_source->schema->resultset($rel_obj->{class}
)->search( undef,
- { %{$rs->{attrs}},
- alias => $alias,
+ { %{$self->{attrs}},
select => undef,
- as => undef }
+ as => undef,
+ join => $rel,
+ _live_join => $rel }
);
+
+ # keep reference of the original resultset
+ $rs->{_parent_rs} = $self->result_source;
+ return $rs;
};
}
projects / dbsrgits/DBIx-Class.git / commitdiff