# special operators (-in, -between). May be extended/overridden by user.
# See section WHERE: BUILTIN SPECIAL OPERATORS below for implementation
my @BUILTIN_SPECIAL_OPS = (
- {regex => qr/^ (?: not \s )? between $/ix, handler => '_where_field_BETWEEN'},
- {regex => qr/^ (?: not \s )? in $/ix, handler => '_where_field_IN'},
- {regex => qr/^ ident $/ix, handler => '_where_op_IDENT'},
- {regex => qr/^ value $/ix, handler => '_where_op_VALUE'},
- {regex => qr/^ is (?: \s+ not )? $/ix, handler => '_where_field_IS'},
+ {regex => qr/^ (?: not \s )? between $/ix, handler => sub { die "NOPE" }},
+ {regex => qr/^ (?: not \s )? in $/ix, handler => sub { die "NOPE" }},
+ {regex => qr/^ ident $/ix, handler => sub { die "NOPE" }},
+ {regex => qr/^ value $/ix, handler => sub { die "NOPE" }},
+ {regex => qr/^ is (?: \s+ not )? $/ix, handler => sub { die "NOPE" }},
);
# unaryish operators - key maps to handler
{ regex => qr/^ value $/xi, handler => '_where_op_VALUE' },
{ regex => qr/^ op $/xi, handler => '_where_op_OP' },
{ regex => qr/^ bind $/xi, handler => '_where_op_BIND' },
+ { regex => qr/^ literal $/xi, handler => '_where_op_LITERAL' },
);
#======================================================================
sub _expand_expr {
my ($self, $expr, $logic) = @_;
+ return undef unless defined($expr);
if (ref($expr) eq 'HASH') {
if (keys %$expr > 1) {
$logic ||= 'and';
}
return { '-'.$logic => \@res };
}
- return $expr;
+ if (my $literal = is_literal_value($expr)) {
+ return +{ -literal => $literal };
+ }
+ if (!ref($expr)) {
+ return +{ -value => $expr };
+ }
+ #::Ddie([ HUH => $expr ]);
+ die "notreached";
}
sub _expand_expr_hashpair {
my ($self, $k, $v, $logic) = @_;
unless (defined($k) and length($k)) {
- if (defined($k) and is_literal_value($v)) {
+ if (defined($k) and my $literal = is_literal_value($v)) {
belch 'Hash-pairs consisting of an empty string with a literal are deprecated, and will be removed in 2.0: use -and => [ $literal ] instead';
- return $v;
+ return { -literal => $literal };
}
puke "Supplying an empty left hand side argument is not supported";
}
if (my ($rest) = $k =~/^-not[_ ](.*)$/) {
return $self->_expand_expr({ -not => { "-${rest}", $v } }, $logic);
}
+ if (my ($logic) = $k =~ /^-(and|or)$/) {
+ if (ref($v) eq 'HASH') {
+ return $self->_expand_expr($v, $logic);
+ }
+ }
} else {
unless (defined($v)) {
my $orig_op = my $op = $self->{cmp};
]
};
}
+ if (ref($v) eq 'HASH') {
+ if (keys %$v > 1) {
+ return { -and => [
+ map $self->_expand_expr_hashpair($k => { $_ => $v->{$_} }),
+ sort keys %$v
+ ] };
+ }
+ my ($vk, $vv) = %$v;
+ $vk =~ s/^-//;
+ $vk = lc($vk);
+ if ($vk =~ /^(?:not[ _])?between$/) {
+ my @rhs = map $self->_expand_expr($_),
+ ref($vv) eq 'ARRAY' ? @$vv : $vv;
+ unless (
+ (@rhs == 1 and ref($rhs[0]) eq 'HASH' and $rhs[0]->{-literal})
+ or
+ (@rhs == 2 and defined($rhs[0]) and defined($rhs[1]))
+ ) {
+ puke "Operator '${\uc($vk)}' requires either an arrayref with two defined values or expressions, or a single literal scalarref/arrayref-ref";
+ }
+ return +{ -op => [
+ join(' ', split '_', $vk),
+ { -ident => $k },
+ map {
+ my $v = ref($_) ? $_->{-value} :$_;
+ ($v ? { -bind => [ $k, $v ] } : $_)
+ } @rhs
+ ] }
+ }
+ if ($vk =~ /^(?:not[ _])?in$/) {
+ if (my $literal = is_literal_value($vv)) {
+ my ($sql, @bind) = @$literal;
+ my $opened_sql = $self->_open_outer_paren($sql);
+ return +{ -op => [
+ $vk, { -ident => $k },
+ [ { -literal => [ $opened_sql, @bind ] } ]
+ ] };
+ }
+ my $undef_err =
+ 'SQL::Abstract before v1.75 used to generate incorrect SQL when the '
+ . "-${\uc($vk)} operator was given an undef-containing list: !!!AUDIT YOUR CODE "
+ . 'AND DATA!!! (the upcoming Data::Query-based version of SQL::Abstract '
+ . 'will emit the logically correct SQL instead of raising this exception)'
+ ;
+ puke("Argument passed to the '${\uc($vk)}' operator can not be undefined")
+ if !defined($vv);
+ my @rhs = map $self->_expand_expr($_),
+ map { ref($_) ? $_ : { -bind => [ $k, $_ ] } }
+ map { defined($_) ? $_: puke($undef_err) }
+ (ref($vv) eq 'ARRAY' ? @$vv : $vv);
+ return +{
+ -literal => [ $self->{$vk =~ /^not/ ? 'sqltrue' : 'sqlfalse'} ]
+ } unless @rhs;
+
+ return +{ -op => [
+ join(' ', split '_', $vk),
+ { -ident => $k },
+ \@rhs
+ ] };
+ }
+ if ($vk eq 'ident') {
+ if (! defined $vv or ref $vv) {
+ puke "-$vk requires a single plain scalar argument (a quotable identifier)";
+ }
+ return +{ -op => [
+ $self->{cmp},
+ { -ident => $k },
+ { -ident => $vv }
+ ] };
+ }
+ if ($vk eq 'value') {
+ return $self->_expand_expr_hashpair($k, undef) unless defined($vv);
+ return +{ -op => [
+ $self->{cmp},
+ { -ident => $k },
+ { -bind => [ $k, $vv ] }
+ ] };
+ }
+ if ($vk =~ /^is(?:[ _]not)?$/) {
+ puke "$vk can only take undef as argument"
+ if defined($vv)
+ and not (
+ ref($vv) eq 'HASH'
+ and exists($vv->{-value})
+ and !defined($vv->{-value})
+ );
+ $vk =~ s/_/ /g;
+ return +{ -op => [ $vk.' null', { -ident => $k } ] };
+ }
+ }
if (ref($v) eq 'ARRAY') {
return $self->{sqlfalse} unless @$v;
$self->_debug("ARRAY($k) means distribute over elements");
return \$literal;
}
my ($sql, @bind) = @$literal;
- return \[ $self->_quote($k).' '.$sql, @bind ];
+ if ($self->{bindtype} eq 'columns') {
+ for (@bind) {
+ if (!defined $_ || ref($_) ne 'ARRAY' || @$_ != 2) {
+ puke "bindtype 'columns' selected, you need to pass: [column_name => bind_value]"
+ }
+ }
+ }
+ return +{ -literal => [ $self->_quote($k).' '.$sql, @bind ] };
}
}
return { $k => $v };
sub _where_unary_op {
my ($self, $op, $rhs) = @_;
+ $op =~ s/^-// if length($op) > 1;
+
# top level special ops are illegal in general
puke "Illegal use of top-level '-$op'"
if !(defined $self->{_nested_func_lhs})
my %unop_postfix = map +($_ => 1), 'is null', 'is not null';
+my %special = (
+ (map +($_ => do {
+ my $op = $_;
+ sub {
+ my ($self, $args) = @_;
+ my ($left, $low, $high) = @$args;
+ my ($rhsql, @rhbind) = do {
+ if (@$args == 2) {
+ puke "Single arg to between must be a literal"
+ unless $low->{-literal};
+ @{$low->{-literal}}
+ } else {
+ local $self->{_nested_func_lhs} = $left->{-ident}
+ if ref($left) eq 'HASH' and $left->{-ident};
+ my ($l, $h) = map [ $self->_where_unary_op(%$_) ], $low, $high;
+ (join(' ', $l->[0], $self->_sqlcase('and'), $h->[0]),
+ @{$l}[1..$#$l], @{$h}[1..$#$h])
+ }
+ };
+ my ($lhsql, @lhbind) = $self->_recurse_where($left);
+ return (
+ join(' ', '(', $lhsql, $self->_sqlcase($op), $rhsql, ')'),
+ @lhbind, @rhbind
+ );
+ }
+ }), 'between', 'not between'),
+ (map +($_ => do {
+ my $op = $_;
+ sub {
+ my ($self, $args) = @_;
+ my ($lhs, $rhs) = @$args;
+ my @in_bind;
+ my @in_sql = map {
+ local $self->{_nested_func_lhs} = $lhs->{-ident}
+ if ref($lhs) eq 'HASH' and $lhs->{-ident};
+ my ($sql, @bind) = $self->_where_unary_op(%$_);
+ push @in_bind, @bind;
+ $sql;
+ } @$rhs;
+ my ($lhsql, @lbind) = $self->_recurse_where($lhs);
+ return (
+ $lhsql.' '.$self->_sqlcase($op).' ( '
+ .join(', ', @in_sql)
+ .' )',
+ @lbind, @in_bind
+ );
+ }
+ }), 'in', 'not in'),
+);
+
sub _where_op_OP {
my ($self, undef, $v) = @_;
my ($op, @args) = @$v;
$op =~ s/^-// if length($op) > 1;
local $self->{_nested_func_lhs};
+ if (my $h = $special{$op}) {
+ return $self->$h(\@args);
+ }
if (@args == 1) {
my ($expr_sql, @bind) = $self->_recurse_where($args[0]);
my $final_op = join ' ', split '_', $op;
return ($self->_convert('?'), $self->_bindtype(@$bind));
}
+sub _where_op_LITERAL {
+ my ($self, undef, $literal) = @_;
+ $self->_assert_bindval_matches_bindtype(@{$literal}[1..$#$literal]);
+ return @$literal;
+}
+
sub _where_hashpair_ARRAYREF {
my ($self, $k, $v) = @_;
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