$new->{render}{from_list} = '_render_from_list';
$new->{expand}{join} = '_expand_join';
$new->{render}{join} = '_render_join';
+ $new->{expand_op}{as} = '_expand_op_as';
+ $new->{expand}{as} = '_expand_op_as';
+ $new->{render}{as} = '_render_as';
+ splice(@{$new->{clauses_of}{update}}, 2, 0, 'from');
+ splice(@{$new->{clauses_of}{delete}}, 1, 0, 'using');
+ $new->{expand_clause}{'update.from'} = '_expand_select_clause_from';
+ $new->{expand_clause}{'delete.using'} = sub {
+ +(using => $_[0]->_expand_from_list(undef, $_[1]));
+ };
return $new;
}
my @list;
my @args = ref($args) ? @$args : ($args);
while (my $entry = shift @args) {
- if (!ref($entry) and $entry =~ /^-/) {
+ if (!ref($entry) and $entry =~ /^-(.*)/) {
+ if ($1 eq 'as') {
+ $list[-1] = $self->expand_expr({ -as => [
+ $list[-1], map +(ref($_) eq 'ARRAY' ? @$_ : $_), shift(@args)
+ ]});
+ next;
+ }
$entry = { $entry => shift @args };
}
my $aqt = $self->expand_expr($entry, -ident);
? %$args
: (to => $args->[0], @{$args}[1..$#$args])
);
+ if (my $as = delete $proto{as}) {
+ $proto{to} = { -as => [ $proto{to}, ref($as) eq 'ARRAY' ? @$as : $as ] };
+ }
+ if (defined($proto{using}) and ref(my $using = $proto{using}) ne 'HASH') {
+ $proto{using} = { -row => [
+ map [ $self->expand_expr($_, -ident) ],
+ ref($using) eq 'ARRAY' ? @$using: $using
+ ] };
+ }
my %ret = map +($_ => $self->expand_expr($proto{$_}, -ident)),
sort keys %proto;
return +{ -join => \%ret };
.'join'
)
],
- [ $self->render_aqt($args->{to}) ],
+ [ $self->render_aqt(
+ map +($_->{-ident} || $_->{-as} ? $_ : { -row => [ $_ ] }), $args->{to}
+ ) ],
($args->{on} ? (
[ $self->_sqlcase('on') ],
[ $self->render_aqt($args->{on}) ],
return $self->_join_parts(' ', @parts);
}
+sub _expand_op_as {
+ my ($self, undef, $vv, $k) = @_;
+ my @as = map $self->expand_expr($_, -ident),
+ (defined($k) ? ($k) : ()), ref($vv) eq 'ARRAY' ? @$vv : $vv;
+ return { -as => \@as };
+}
+
+sub _render_as {
+ my ($self, $args) = @_;
+ my ($thing, $as, @cols) = @$args;
+ return $self->_join_parts(
+ ' ',
+ [ $self->render_aqt(
+ map +($_->{-ident} ? $_ : { -row => [ $_ ] }), $thing
+ ) ],
+ [ $self->_sqlcase('as') ],
+ (@cols
+ ? [ $self->_join_parts('',
+ [ $self->render_aqt($as) ],
+ [ '(' ],
+ [ $self->_join_parts(
+ ', ',
+ map [ $self->render_aqt($_) ], @cols
+ ) ],
+ [ ')' ],
+ ) ]
+ : [ $self->render_aqt($as) ]
+ ),
+ );
+}
+
1;