$self->op_expander(as => '_expand_op_as');
$self->expander(as => '_expand_op_as');
$self->renderer(as => '_render_as');
+ $self->expander(alias => sub {
+ my ($self, undef, $args) = @_;
+ if (ref($args) eq 'HASH' and my $alias = $args->{-alias}) {
+ $args = $alias;
+ }
+ +{ -alias => [
+ map $self->expand_expr($_, -ident),
+ ref($args) eq 'ARRAY' ? @{$args} : $args
+ ]
+ }
+ });
+ $self->renderer(alias => '_render_alias');
$self->clauses_of(update => sub {
my ($self, @clauses) = @_;
);
# set ops
- {
- my $orig = $self->expander('select');
- $self->expander(select => sub {
+ $self->wrap_expander(select => sub {
+ my $orig = shift;
+ sub {
my $self = shift;
my $exp = $self->$orig(@_);
return $exp unless my $setop = (my $sel = $exp->{-select})->{setop};
{ -select => \%inner };
}
return $exp;
- });
- }
+ }
+ });
my $expand_setop = sub {
my ($self, $setop, $args) = @_;
+{ "-${setop}" => {
$self->renderer($_ => sub {
my ($self, $setop, $args) = @_;
- $self->join_clauses(
+ $self->join_query_parts(
' '.$self->format_keyword(join '_', $setop, ($args->{type}||())).' ',
- map [ $self->render_aqt($_) ], @{$args->{queries}}
+ @{$args->{queries}}
);
}) for qw(union intersect except);
);
$self->clause_expander('select.with' => my $with_expander = sub {
- my ($self, undef, $with) = @_;
+ my ($self, $name, $with) = @_;
+ my (undef, $type) = split '_', $name;
if (ref($with) eq 'HASH') {
return +{
%$with,
- queries => [ map $self->expand_expr($_), @{$with->{queries}} ]
+ queries => [
+ map +[
+ $self->expand_expr({ -alias => $_->[0] }, -ident),
+ $self->expand_expr($_->[1]),
+ ], @{$with->{queries}}
+ ]
}
}
my @with = @$with;
my @exp;
- while (my ($name, $query) = splice @with, 0, 2) {
- my @n = map $self->expand_expr($_, -ident),
- ref($name) eq 'ARRAY' ? @$name : $name;
+ while (my ($alias, $query) = splice @with, 0, 2) {
push @exp, [
- \@n,
+ $self->expand_expr({ -alias => $alias }, -ident),
$self->expand_expr($query)
];
}
- return +{ queries => \@exp };
+ return +(with => { ($type ? (type => $type) : ()), queries => \@exp });
});
- $self->clause_expander('select.with_recursive' => sub {
+ $self->clause_expander('select.with_recursive', $with_expander);
+ $self->clause_renderer('select.with' => my $with_renderer = sub {
my ($self, undef, $with) = @_;
- my $exp = $self->$with_expander(undef, $with);
- return +(with => +{
- %$exp,
- type => 'recursive'
- });
- });
- $self->clause_renderer('select.with' => sub {
- my ($self, undef, $with) = @_;
- my $q_part = [ $self->join_clauses(', ',
+ my $q_part = $self->join_query_parts(', ',
map {
my ($alias, $query) = @$_;
- [ $self->join_clauses(' ',
- [ $self->_render_alias($alias) ],
- [ $self->format_keyword('as') ],
- [ $self->render_aqt($query) ],
- ) ]
+ $self->join_query_parts(' ',
+ $alias,
+ $self->format_keyword('as'),
+ $query,
+ )
} @{$with->{queries}}
- ) ];
- return $self->join_clauses(' ',
- [ $self->format_keyword(join '_', 'with', ($with->{type}||'')) ],
+ );
+ return $self->join_query_parts(' ',
+ $self->format_keyword(join '_', 'with', ($with->{type}||'')),
$q_part,
);
});
+ foreach my $stmt (qw(insert update delete)) {
+ $self->clauses_of($stmt => 'with', $self->clauses_of($stmt));
+ $self->clause_expander("${stmt}.$_", $with_expander)
+ for qw(with with_recursive);
+ $self->clause_renderer("${stmt}.with", $with_renderer);
+ }
+ $self->expander(cast => sub {
+ return { -func => [ cast => $_[2] ] } if ref($_[2]) eq 'HASH';
+ my ($cast, $to) = @{$_[2]};
+ +{ -func => [ cast => { -as => [
+ $self->expand_expr($cast),
+ $self->expand_expr($to, -ident),
+ ] } ] };
+ });
return $self;
}
-sub format_keyword { $_[0]->_sqlcase(join ' ', split '_', $_[1]) }
-
sub _expand_select_clause_from {
my ($self, undef, $from) = @_;
+(from => $self->_expand_from_list(undef, $from));
sub _expand_from_list {
my ($self, undef, $args) = @_;
if (ref($args) eq 'HASH') {
+ return $args if $args->{-from_list};
return { -from_list => [ $self->expand_expr($args) ] };
}
my @list;
: (to => $args->[0], @{$args}[1..$#$args])
);
if (my $as = delete $proto{as}) {
- $proto{to} = { -as => [ $proto{to}, ref($as) eq 'ARRAY' ? @$as : $as ] };
+ $proto{to} = $self->expand_expr({ -as => [ $proto{to}, $as ] });
}
if (defined($proto{using}) and ref(my $using = $proto{using}) ne 'HASH') {
- $proto{using} = { -row => [
+ $proto{using} = [
map [ $self->expand_expr($_, -ident) ],
ref($using) eq 'ARRAY' ? @$using: $using
- ] };
+ ];
}
my %ret = map +($_ => $self->expand_expr($proto{$_}, -ident)),
sort keys %proto;
sub _render_from_list {
my ($self, undef, $list) = @_;
- return $self->join_clauses(', ', map [ $self->render_aqt($_) ], @$list);
+ return $self->join_query_parts(', ', @$list);
}
sub _render_join {
my ($self, undef, $args) = @_;
my @parts = (
- [ $self->render_aqt($args->{from}) ],
- [ $self->format_keyword(join '_', ($args->{type}||()), 'join') ],
- [ $self->render_aqt(
- map +($_->{-ident} || $_->{-as} ? $_ : { -row => [ $_ ] }), $args->{to}
- ) ],
+ $args->{from},
+ $self->format_keyword(join '_', ($args->{type}||()), 'join'),
+ (map +($_->{-ident} || $_->{-as} ? $_ : ('(', $_, ')')), $args->{to}),
($args->{on} ? (
- [ $self->format_keyword('on') ],
- [ $self->render_aqt($args->{on}) ],
+ $self->format_keyword('on') ,
+ $args->{on},
) : ()),
($args->{using} ? (
- [ $self->format_keyword('using') ],
- [ $self->render_aqt($args->{using}) ],
+ $self->format_keyword('using'),
+ '(', $args->{using}, ')',
) : ()),
);
- return $self->join_clauses(' ', @parts);
+ return $self->join_query_parts(' ', @parts);
}
sub _expand_op_as {
my ($self, undef, $vv, $k) = @_;
- my @as = map $self->expand_expr($_, -ident),
- (defined($k) ? ($k) : ()), ref($vv) eq 'ARRAY' ? @$vv : $vv;
- return { -as => \@as };
+ my @vv = (ref($vv) eq 'ARRAY' ? @$vv : $vv);
+ $k ||= shift @vv;
+ my $ik = $self->expand_expr($k, -ident);
+ return +{ -as => [ $ik, $self->expand_expr($vv[0], -alias) ] }
+ if @vv == 1 and ref($vv[0]) eq 'HASH';
+
+ my @as = map $self->expand_expr($_, -ident), @vv;
+ return { -as => [ $ik, { -alias => \@as } ] };
}
sub _render_as {
my ($self, undef, $args) = @_;
- my ($thing, @alias) = @$args;
- return $self->join_clauses(
+ my ($thing, $alias) = @$args;
+ return $self->join_query_parts(
' ',
- [ $self->render_aqt($thing) ],
- [ $self->format_keyword('as') ],
- [ $self->_render_alias(\@alias) ],
+ $thing,
+ $self->format_keyword('as'),
+ $alias,
);
}
sub _render_alias {
- my ($self, $args) = @_;
+ my ($self, undef, $args) = @_;
my ($as, @cols) = @$args;
return (@cols
- ? $self->join_clauses('',
- [ $self->render_aqt($as) ],
- [ '(' ],
- [ $self->join_clauses(
- ', ',
- map [ $self->render_aqt($_) ], @cols
- ) ],
- [ ')' ],
+ ? $self->join_query_parts('',
+ $as,
+ '(',
+ $self->join_query_parts(
+ ', ',
+ @cols
+ ),
+ ')',
)
: $self->render_aqt($as)
);