};
}
+sub register {
+ my ($self, @pairs) = @_;
+ my $sqla = $self->sqla;
+ while (my ($method, $cases) = splice(@pairs, 0, 2)) {
+ my @cases = @$cases;
+ while (my ($name, $case) = splice(@cases, 0, 2)) {
+ $sqla->$method($name, $self->cb($case));
+ }
+ }
+ return $self;
+}
+
sub apply_to {
my ($self, $sqla) = @_;
$self = $self->new unless ref($self);
+ local $self->{sqla} = $sqla;
+ $self->register_extensions($sqla);
+}
+
+sub register_extensions {
+ my ($self, $sqla) = @_;
my @clauses = $sqla->clauses_of('select');
my @before_setop;
CLAUSE: foreach my $idx (0..$#clauses) {
}
die "Huh?" unless @before_setop;
$sqla->clauses_of(select => 'with', @clauses);
- $sqla->clause_expanders(
- 'select.group_by', $self->cb(sub {
- $_[0]->expand_maybe_list_expr($_[2], -ident)
- }),
- 'select.having', $self->cb(sub { $_[0]->expand_expr($_[2]) }),
+ $self->register(
+ clause_expanders => [
+ 'select.group_by'
+ => sub { $_[0]->expand_maybe_list_expr($_[2], -ident) },
+ 'select.having'
+ => sub { $_[0]->expand_expr($_[2]) },
+ ],
+ (map +(
+ "${_}er" => [
+ do {
+ my $x = $_;
+ (map +($_ => "_${x}_${_}"), qw(join from_list alias))
+ }
+ ]
+ ), qw(expand render)),
+ binop_expander => [ as => '_expand_op_as' ],
+ renderer => [ as => '_render_as' ],
+ expander => [ cast => '_expand_cast' ],
);
- foreach my $thing (qw(join from_list)) {
- $sqla->expander($thing => $self->cb("_expand_${thing}"))
- ->renderer($thing => $self->cb("_render_${thing}"))
- }
- $sqla->binop_expander(as => $self->cb('_expand_op_as'));
- $sqla->renderer(as => $self->cb('_render_as'));
- $sqla->expander(alias => $self->cb('_expand_alias'));
- $sqla->renderer(alias => $self->cb('_render_alias'));
$sqla->clauses_of(update => sub {
my ($self, @clauses) = @_;
$sqla->clause_renderer("${stmt}.with" => $w_rdr);
}
- $sqla->expander(cast => $self->cb('_expand_cast'));
-
$sqla->clause_expanders(
"select.from", $self->cb('_expand_from_list'),
"update.target", $self->cb('_expand_update_clause_target'),