use DBIx::Class::Carp;
use DBIx::Class::ResultSetColumn;
use Scalar::Util qw/blessed weaken reftype/;
+use DBIx::Class::_Util 'fail_on_internal_wantarray';
use Try::Tiny;
-use Data::Compare (); # no imports!!! guard against insane architecture
+use Data::Dumper::Concise ();
use Data::Query::Constants;
use Data::Query::ExprHelpers;
# not importing first() as it will clash with our own method
if $source->isa('DBIx::Class::ResultSourceHandle');
$attrs = { %{$attrs||{}} };
- delete @{$attrs}{qw(_sqlmaker_select_args _related_results_construction)};
+ delete @{$attrs}{qw(_last_sqlmaker_alias_map _related_results_construction)};
if ($attrs->{page}) {
$attrs->{rows} ||= 10;
For a list of attributes that can be passed to C<search>, see
L</ATTRIBUTES>. For more examples of using this function, see
-L<Searching|DBIx::Class::Manual::Cookbook/Searching>. For a complete
+L<Searching|DBIx::Class::Manual::Cookbook/SEARCHING>. For a complete
documentation for the first argument, see L<SQL::Abstract/"WHERE CLAUSES">
and its extension L<DBIx::Class::SQLMaker>.
my $rs = $self->search_rs( @_ );
if (wantarray) {
+ DBIx::Class::_ENV_::ASSERT_NO_INTERNAL_WANTARRAY and my $sog = fail_on_internal_wantarray($rs);
return $rs->all;
}
elsif (defined wantarray) {
$call_cond = { @_ };
}
+ if (blessed($call_cond) and $call_cond->isa('Data::Query::ExprBuilder')) {
+ $call_cond = \$call_cond->{expr};
+ }
+
# see if we can keep the cache (no $rs changes)
my $cache;
my %safe = (alias => 1, cache => 1);
ref $call_cond eq 'ARRAY' && ! @$call_cond
)) {
$cache = $self->get_cache;
+ } elsif (
+ $self->{attrs}{cache} and
+ ($self->{attrs}{grep_cache} or $call_attrs->{grep_cache})
+ ) {
+ if (
+ keys %$call_attrs
+ and not (exists $call_attrs->{grep_cache} and !$call_attrs->{grep_cache})
+ ) {
+ die "Can't do complex search on resultset with grep_cache set";
+ }
+ my $grep_one = $self->_construct_perl_predicate($call_cond);
+ $cache = [ grep $grep_one->($_), $self->all ];
}
my $old_attrs = { %{$self->{attrs}} };
sub _stack_cond {
my ($self, $left, $right) = @_;
- # collapse single element top-level conditions
- # (single pass only, unlikely to need recursion)
- for ($left, $right) {
- if (ref $_ eq 'ARRAY') {
- if (@$_ == 0) {
- $_ = undef;
- }
- elsif (@$_ == 1) {
- $_ = $_->[0];
- }
- }
- elsif (ref $_ eq 'HASH') {
- my ($first, $more) = keys %$_;
+ my $source = $self->result_source;
- # empty hash
- if (! defined $first) {
- $_ = undef;
- }
- # one element hash
- elsif (! defined $more) {
- if ($first eq '-and' and ref $_->{'-and'} eq 'HASH') {
- $_ = $_->{'-and'};
- }
- elsif ($first eq '-or' and ref $_->{'-or'} eq 'ARRAY') {
- $_ = $_->{'-or'};
- }
- }
- }
- }
+ my $converter = $source->schema->storage->sql_maker->converter;
- # merge hashes with weeding out of duplicates (simple cases only)
- if (ref $left eq 'HASH' and ref $right eq 'HASH') {
+ my @top = map $source->_extract_top_level_conditions(
+ $converter->_expr_to_dq($_)
+ ), grep defined, $left, $right;
- # shallow copy to destroy
- $right = { %$right };
- for (grep { exists $right->{$_} } keys %$left) {
- # the use of eq_deeply here is justified - the rhs of an
- # expression can contain a lot of twisted weird stuff
- delete $right->{$_} if Data::Compare::Compare( $left->{$_}, $right->{$_} );
- }
+ return undef unless @top;
- $right = undef unless keys %$right;
- }
+ my %seen;
+ my @uniq = grep { !$seen{Data::Dumper::Concise::Dumper($_)}++ } @top;
- if (defined $left xor defined $right) {
- return defined $left ? $left : $right;
- }
- elsif (! defined $left) {
- return undef;
- }
- else {
- return { -and => [ $left, $right ] };
+ return \$uniq[0] if @uniq == 1;
+
+ return \Operator({ 'SQL.Naive' => 'AND' }, \@uniq);
+}
+
+my %perl_op_map = (
+ '=' => { numeric => '==', string => 'eq' },
+);
+
+sub _construct_perl_predicate {
+ my ($self, $cond) = @_;
+
+ # This shouldn't really live here but it'll do for the moment.
+
+ my %alias_map = (
+ $self->current_source_alias => {
+ join_path => [],
+ source => $self->result_source,
+ columns_info => $self->result_source->columns_info,
+ },
+ );
+
+ my $attrs = $self->_resolved_attrs;
+ foreach my $j ( @{$attrs->{from}}[1 .. $#{$attrs->{from}} ] ) {
+ next unless $j->[0]{-alias};
+ next unless $j->[0]{-join_path};
+ $alias_map{$j->[0]{-alias}} = {
+ join_path => [ map { keys %$_ } @{$j->[0]{-join_path}} ],
+ source => $j->[0]{-rsrc},
+ columns_info => $j->[0]{-rsrc}->columns_info,
+ };
}
+
+ my %as_map = map +($attrs->{select}[$_] => $attrs->{as}[$_]),
+ grep !ref($attrs->{select}[$_]), 0..$#{$attrs->{select}};
+
+ my $storage = $self->result_source->schema->storage;
+ my $sql_maker = $storage->sql_maker;
+ my $tree = map_dq_tree {
+ if (is_Operator) {
+ my $op = $_->{operator}{'SQL.Naive'} or die "No operator";
+ if (lc($op) =~ /^(?:and|or|not)$/i) {
+ return Operator({ 'Perl' => lc($op) }, $op->{args});
+ }
+ if (my $op_map = $perl_op_map{$op}) {
+ die "Binop doesn't have two args - wtf?"
+ unless @{$_->{args}} == 2;
+ my $data_type;
+ my @mapped_args = map {
+ if (is_Identifier) {
+ die "Identifier not alias.colname"
+ unless @{$_->{elements}} == 2;
+ my ($alias, $col) = @{$_->{elements}};
+ die "${alias}.${col} not selected"
+ unless $as_map{"${alias}.${col}"};
+ unless ($data_type) {
+ my $colinfo = $alias_map{$alias}{columns_info}{$col};
+ unless (defined $colinfo->{is_numeric}) {
+ $colinfo->{is_numeric} = (
+ $storage->is_datatype_numeric($colinfo->{data_type})
+ ? 1
+ : 0
+ );
+ }
+ $data_type = $colinfo->{is_numeric} ? 'numeric' : 'string';
+ }
+ Identifier(@{$alias_map{$alias}{join_path}}, $col);
+ } elsif (is_Value) {
+ $_;
+ } else {
+ die "Argument to operator neither identifier nor value";
+ }
+ } @{$_->{args}};
+ die "Couldn't determine numeric versus string" unless $data_type;
+ return \Operator({ Perl => $op_map->{$data_type} }, \@mapped_args);
+ }
+ }
+ die "Unable to map node to perl";
+ } $sql_maker->converter->_where_to_dq($cond);
+ my ($code, @values) = @{$storage->perl_renderer->render($tree)};
+ my $sub = eval q!sub { !.$code.q! }!
+ or die "Failed to build sub: $@";
+ my @args = map $_->{value}, @values;
+ return sub { local $_ = $_[0]; $sub->(@args) };
}
=head2 search_literal
method. It is equivalent to calling C<< $schema->search(\[]) >>, but if you
want to ensure columns are bound correctly, use L</search>.
-See L<DBIx::Class::Manual::Cookbook/Searching> and
+See L<DBIx::Class::Manual::Cookbook/SEARCHING> and
L<DBIx::Class::Manual::FAQ/Searching> for searching techniques that do not
require C<search_literal>.
$attrs->{offset} += $min;
$attrs->{rows} = ($max ? ($max - $min + 1) : 1);
return $self->search(undef, $attrs);
- #my $slice = (ref $self)->new($self->result_source, $attrs);
- #return (wantarray ? $slice->all : $slice);
}
=head2 next
return undef unless @{$rows||[]};
# sanity check - people are too clever for their own good
- if ($attrs->{collapse} and my $aliastypes = $attrs->{_sqlmaker_select_args}[3]{_aliastypes} ) {
+ if ($attrs->{collapse} and my $aliastypes = $attrs->{_last_sqlmaker_alias_map} ) {
my $multiplied_selectors;
for my $sel_alias ( grep { $_ ne $attrs->{alias} } keys %{ $aliastypes->{selecting} } ) {
if (
$aliastypes->{multiplying}{$sel_alias}
or
- scalar grep { $aliastypes->{multiplying}{(values %$_)[0]} } @{ $aliastypes->{selecting}{$sel_alias}{-parents} }
+ $aliastypes->{premultiplied}{$sel_alias}
) {
$multiplied_selectors->{$_} = 1 for values %{$aliastypes->{selecting}{$sel_alias}{-seen_columns}}
}
$sql_maker->{name_sep} = '';
}
- $sql_maker->clear_renderer;
- $sql_maker->clear_converter;
+ # delete local is 5.12+
+ local @{$sql_maker}{qw(renderer converter)};
+ delete @{$sql_maker}{qw(renderer converter)};
my ($lquote, $rquote, $sep) = map { quotemeta $_ } ($sql_maker->_quote_chars, $sql_maker->name_sep);
my $having_sql = $sql_maker->_render_sqla(where => $attrs->{having});
- $sql_maker->clear_renderer;
- $sql_maker->clear_converter;
-
my %seen_having;
# search for both a proper quoted qualified string, for a naive unquoted scalarref
if (!$needs_subq and @{$attrs->{from}} > 1) {
($attrs->{from}, $join_classifications) =
- $storage->_prune_unused_joins ($attrs->{from}, $attrs->{select}, $self->{cond}, $attrs);
+ $storage->_prune_unused_joins ($attrs);
# any non-pruneable non-local restricting joins imply subq
$needs_subq = defined List::Util::first { $_ ne $attrs->{alias} } keys %{ $join_classifications->{restricting} || {} };
my $subrs = (ref $self)->new($rsrc, $attrs);
if (@$idcols == 1) {
- $cond = { $idcols->[0] => { -in => $subrs->as_query } };
+ $cond = { $idcols->[0] => { -in => \$subrs->_as_select_dq } };
}
elsif ($storage->_use_multicolumn_in) {
# no syntax for calling this properly yet
# !!! EXPERIMENTAL API !!! WILL CHANGE !!!
- $cond = $storage->sql_maker->_where_op_multicolumn_in (
- $idcols, # how do I convey a list of idents...? can binds reside on lhs?
- $subrs->as_query
+ my $left = $storage->sql_maker->_render_sqla(select_select => $idcols);
+ $left =~ s/^SELECT //i;
+ my $right = $storage->sql_maker
+ ->converter
+ ->_literal_to_dq(${$subrs->as_query});
+ $cond = \Operator(
+ { 'SQL.Naive' => 'in' },
+ [ Literal(SQL => "( $left )"), $right ],
),
}
else {
if (
$existing_group_by
or
+ # we do not need to check pre-multipliers, since if the premulti is there, its
+ # parent (who is multi) will be there too
keys %{ $join_classifications->{multiplying} || {} }
) {
# make sure if there is a supplied group_by it matches the columns compiled above
$rel,
);
+ if (ref($related) eq 'REF' and ref($$related) eq 'HASH') {
+ $related = $self->result_source
+ ->_extract_fixed_values_for($$related, $rel);
+ }
+
my @rows_to_add = ref $item->{$rel} eq 'ARRAY' ? @{$item->{$rel}} : ($item->{$rel});
my @populate = map { {%$_, %$related} } @rows_to_add;
}
}
-
# populate() arguments went over several incarnations
# What we ultimately support is AoH
sub _normalize_populate_args {
if (! defined $self->{cond}) {
# just massage $data below
}
- elsif ($self->{cond} eq $DBIx::Class::ResultSource::UNRESOLVABLE_CONDITION) {
- %new_data = %{ $self->{attrs}{related_objects} || {} }; # nothing might have been inserted yet
- @cols_from_relations = keys %new_data;
- }
- elsif (ref $self->{cond} ne 'HASH') {
- $self->throw_exception(
- "Can't abstract implicit construct, resultset condition not a hash"
- );
- }
- else {
+ elsif (ref $self->{cond} eq 'HASH') {
# precedence must be given to passed values over values inherited from
# the cond, so the order here is important.
my $collapsed_cond = $self->_collapse_cond($self->{cond});
}
}
}
+ elsif (ref $self->{cond} eq 'REF' and ref ${$self->{cond}} eq 'HASH') {
+ if ((${$self->{cond}})->{'DBIx::Class::ResultSource.UNRESOLVABLE'}) {
+ %new_data = %{ $self->{attrs}{related_objects} || {} }; # nothing might have been inserted yet
+ @cols_from_relations = keys %new_data;
+ } else {
+ %new_data = %{$self->_remove_alias(
+ $self->result_source
+ ->_extract_fixed_values_for(${$self->{cond}}),
+ $alias
+ )};
+ }
+ }
+ else {
+ $self->throw_exception(
+ "Can't abstract implicit construct, resultset condition not a hash"
+ );
+ }
%new_data = (
%new_data,
$attrs->{from}, $attrs->{select}, $attrs->{where}, $attrs
);
- $self->{_attrs}{_sqlmaker_select_args} = $attrs->{_sqlmaker_select_args};
-
$aq;
}
+sub _as_select_dq {
+ my $self = shift;
+ my $attrs = { %{ $self->_resolved_attrs } };
+ my $storage = $self->result_source->storage;
+ my (undef, $ident, @args) = $storage->_select_args(
+ $attrs->{from}, $attrs->{select}, $attrs->{where}, $attrs
+ );
+ $ident = $ident->from if blessed($ident);
+ $storage->sql_maker->converter->_select_to_dq(
+ $ident, @args
+ );
+}
+
=head2 find_or_new
=over 4
my $source = $self->result_source;
my $alias = $attrs->{alias};
+ $self->throw_exception("Specifying distinct => 1 in conjunction with collapse => 1 is unsupported")
+ if $attrs->{collapse} and $attrs->{distinct};
+
# default selection list
$attrs->{columns} = [ $source->columns ]
unless List::Util::first { exists $attrs->{$_} } qw/columns cols select as/;
$source->_resolve_join(
$join,
$alias,
- { %{ $attrs->{seen_join} || {} } },
+ ($attrs->{seen_join} = { %{ $attrs->{seen_join} || {} } }),
( $attrs->{seen_join} && keys %{$attrs->{seen_join}})
? $attrs->{from}[-1][0]{-join_path}
: []
$attrs->{group_by} = [ $attrs->{group_by} ];
}
- # generate the distinct induced group_by early, as prefetch will be carried via a
- # subquery (since a group_by is present)
- if (delete $attrs->{distinct}) {
- if ($attrs->{group_by}) {
- carp_unique ("Useless use of distinct on a grouped resultset ('distinct' is ignored when a 'group_by' is present)");
- }
- else {
- $attrs->{_grouped_by_distinct} = 1;
- # distinct affects only the main selection part, not what prefetch may
- # add below.
- $attrs->{group_by} = $source->storage->_group_over_selection($attrs);
- }
- }
# generate selections based on the prefetch helper
- my $prefetch;
+ my ($prefetch, @prefetch_select, @prefetch_as);
$prefetch = $self->_merge_joinpref_attr( {}, delete $attrs->{prefetch} )
if defined $attrs->{prefetch};
$self->throw_exception("Unable to prefetch, resultset contains an unnamed selector $attrs->{_dark_selector}{string}")
if $attrs->{_dark_selector};
+ $self->throw_exception("Specifying prefetch in conjunction with an explicit collapse => 0 is unsupported")
+ if defined $attrs->{collapse} and ! $attrs->{collapse};
+
$attrs->{collapse} = 1;
# this is a separate structure (we don't look in {from} directly)
my @prefetch = $source->_resolve_prefetch( $prefetch, $alias, $join_map );
- push @{ $attrs->{select} }, (map { $_->[0] } @prefetch);
- push @{ $attrs->{as} }, (map { $_->[1] } @prefetch);
- }
-
- if ( List::Util::first { $_ =~ /\./ } @{$attrs->{as}} ) {
- $attrs->{_related_results_construction} = 1;
+ # save these for after distinct resolution
+ @prefetch_select = map { $_->[0] } @prefetch;
+ @prefetch_as = map { $_->[1] } @prefetch;
}
# run through the resulting joinstructure (starting from our current slot)
}
}
+ # generate the distinct induced group_by before injecting the prefetched select/as parts
+ if (delete $attrs->{distinct}) {
+ if ($attrs->{group_by}) {
+ carp_unique ("Useless use of distinct on a grouped resultset ('distinct' is ignored when a 'group_by' is present)");
+ }
+ else {
+ $attrs->{_grouped_by_distinct} = 1;
+ # distinct affects only the main selection part, not what prefetch may add below
+ ($attrs->{group_by}, my $new_order) = $source->storage->_group_over_selection($attrs);
+
+ # FIXME possibly ignore a rewritten order_by (may turn out to be an issue)
+ # The thinking is: if we are collapsing the subquerying prefetch engine will
+ # rip stuff apart for us anyway, and we do not want to have a potentially
+ # function-converted external order_by
+ # ( there is an explicit if ( collapse && _grouped_by_distinct ) check in DBIHacks )
+ $attrs->{order_by} = $new_order unless $attrs->{collapse};
+ }
+ }
+
+ # inject prefetch-bound selection (if any)
+ push @{$attrs->{select}}, @prefetch_select;
+ push @{$attrs->{as}}, @prefetch_as;
+
+ # whether we can get away with the dumbest (possibly DBI-internal) collapser
+ if ( List::Util::first { $_ =~ /\./ } @{$attrs->{as}} ) {
+ $attrs->{_related_results_construction} = 1;
+ }
+
# if both page and offset are specified, produce a combined offset
# even though it doesn't make much sense, this is what pre 081xx has
# been doing
=back
-Set to 1 to group by all columns. If the resultset already has a group_by
-attribute, this setting is ignored and an appropriate warning is issued.
+Set to 1 to automatically generate a L</group_by> clause based on the selection
+(including intelligent handling of L</order_by> contents). Note that the group
+criteria calculation takes place over the B<final> selection. This includes
+any L</+columns>, L</+select> or L</order_by> additions in subsequent
+L</search> calls, and standalone columns selected via
+L<DBIx::Class::ResultSetColumn> (L</get_column>). A notable exception are the
+extra selections specified via L</prefetch> - such selections are explicitly
+excluded from group criteria calculations.
+
+If the final ResultSet also explicitly defines a L</group_by> attribute, this
+setting is ignored and an appropriate warning is issued.
=head2 where
projects / dbsrgits/DBIx-Class.git / blobdiff