X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FSQL%2FAbstract.pm;h=e1ec82ac53a52af126abe58a1436e7b30266bddf;hb=ebaff58e3574fd6b2e0b3e1f79fc3e09b288a81f;hp=0ac8fdde3e2e9852b7c001d8701c1ef644110eb1;hpb=7642d9ff9bcdacc503079a78cb85c4d44f0b2016;p=dbsrgits%2FSQL-Abstract.git

diff --git a/lib/SQL/Abstract.pm b/lib/SQL/Abstract.pm
index 0ac8fdd..e1ec82a 100644
--- a/lib/SQL/Abstract.pm
+++ b/lib/SQL/Abstract.pm
@@ -184,11 +184,6 @@ sub new {
     ^ \s* go \s
   /xmi;
 
-  $opt{render} = {
-    (map +("-$_", "_render_$_"), qw(op func bind ident literal list)),
-    %{$opt{render}||{}}
-  };
-
   $opt{expand_unary} = {};
 
   $opt{expand} = {
@@ -196,6 +191,15 @@ sub new {
     -value => '_expand_value',
     -not => '_expand_not',
     -bool => '_expand_bool',
+    -and => '_expand_andor',
+    -or => '_expand_andor',
+  };
+
+  $opt{render_op} = our $RENDER_OP;
+
+  $opt{render} = {
+    (map +("-$_", "_render_$_"), qw(op func bind ident literal list)),
+    %{$opt{render}||{}}
   };
 
   return bless \%opt, $class;
@@ -539,13 +543,13 @@ sub _expand_expr {
     return undef unless my $kc = keys %$expr;
     if ($kc > 1) {
       $logic ||= 'and';
-      return +{ -op => [
-        $logic,
-        map $self->_expand_expr({ $_ => $expr->{$_} }, $logic),
-          sort keys %$expr
-      ] };
+      return $self->_expand_andor("-${logic}", $expr);
     }
     my ($key, $value) = %$expr;
+    if ($key =~ /^-/ and $key =~ s/ [_\s]? \d+ $//x ) {
+      belch 'Use of [and|or|nest]_N modifiers is deprecated and will be removed in SQLA v2.0. '
+          . "You probably wanted ...-and => [ $key => COND1, $key => COND2 ... ]";
+    }
     if (my $exp = $self->{expand}{$key}) {
       return $self->$exp($key, $value);
     }
@@ -553,37 +557,7 @@ sub _expand_expr {
   }
   if (ref($expr) eq 'ARRAY') {
     my $logic = lc($logic || $self->{logic});
-    $logic eq 'and' or $logic eq 'or' or puke "unknown logic: $logic";
-
-    my @expr = grep {
-      (ref($_) eq 'ARRAY' and @$_)
-      or (ref($_) eq 'HASH' and %$_)
-      or 1
-    } @$expr;
-
-    my @res;
-
-    while (my ($el) = splice @expr, 0, 1) {
-      puke "Supplying an empty left hand side argument is not supported in array-pairs"
-        unless defined($el) and length($el);
-      my $elref = ref($el);
-      if (!$elref) {
-        local $Expand_Depth = 0;
-        push(@res, grep defined, $self->_expand_expr({ $el, shift(@expr) }));
-      } elsif ($elref eq 'ARRAY') {
-        push(@res, grep defined, $self->_expand_expr($el)) if @$el;
-      } elsif (my $l = is_literal_value($el)) {
-        push @res, { -literal => $l };
-      } elsif ($elref eq 'HASH') {
-        local $Expand_Depth = 0;
-        push @res, grep defined, $self->_expand_expr($el) if %$el;
-      } else {
-        die "notreached";
-      }
-    }
-    # ???
-    # return $res[0] if @res == 1;
-    return { -op => [ $logic, @res ] };
+    return $self->_expand_andor("-${logic}", $expr);
   }
   if (my $literal = is_literal_value($expr)) {
     return +{ -literal => $literal };
@@ -592,10 +566,7 @@ sub _expand_expr {
     if (my $d = our $Default_Scalar_To) {
       return $self->_expand_expr({ $d => $expr });
     }
-    if (my $m = our $Cur_Col_Meta) {
-      return +{ -bind => [ $m, $expr ] };
-    }
-    return +{ -bind => [ undef, $expr ] };
+    return $self->_expand_value(-value => $expr);
   }
   die "notreached";
 }
@@ -611,10 +582,6 @@ sub _expand_expr_hashpair {
   }
   if ($k =~ /^-/) {
     $self->_assert_pass_injection_guard($k =~ /^-(.*)$/s);
-    if ($k =~ s/ [_\s]? \d+ $//x ) {
-      belch 'Use of [and|or|nest]_N modifiers is deprecated and will be removed in SQLA v2.0. '
-          . "You probably wanted ...-and => [ $k => COND1, $k => COND2 ... ]";
-    }
     if ($k eq '-nest') {
       # DBIx::Class requires a nest warning to be emitted once but the private
       # method it overrode to do so no longer exists
@@ -635,14 +602,6 @@ sub _expand_expr_hashpair {
         $self->_expand_expr({ "-${rest}", $v }, $logic)
       ] };
     }
-    if (my ($logic) = $k =~ /^-(and|or)$/i) {
-      if (ref($v) eq 'HASH') {
-        return $self->_expand_expr($v, $logic);
-      }
-      if (ref($v) eq 'ARRAY') {
-        return $self->_expand_expr($v, $logic);
-      }
-    }
     {
       my $op = $k;
       $op =~ s/^-// if length($op) > 1;
@@ -661,9 +620,6 @@ sub _expand_expr_hashpair {
         return { -op => [ $op, $v ] };
       }
     }
-    if (my $custom = $self->{expand_unary}{$k}) {
-      return $self->$custom($v);
-    }
     if ($self->{render}{$k}) {
       return { $k => $v };
     }
@@ -873,15 +829,14 @@ sub _expand_expr_hashpair {
   if (ref($v) eq 'ARRAY') {
     return $self->sqlfalse unless @$v;
     $self->_debug("ARRAY($k) means distribute over elements");
-    my $this_logic = (
-      $v->[0] =~ /^-((?:and|or))$/i
-        ? ($v = [ @{$v}[1..$#$v] ], $1)
-        : ($self->{logic} || 'or')
+    my $this_logic = lc(
+      $v->[0] =~ /^-(and|or)$/i
+        ? shift(@{$v = [ @$v ]})
+        : '-'.($self->{logic} || 'or')
     );
-    return +{ -op => [
-      $this_logic,
-      map $self->_expand_expr({ $k => $_ }, $this_logic), @$v
-    ] };
+    return $self->_expand_expr({
+      $this_logic => [ map +{ $k => $_ }, @$v ]
+    });
   }
   if (my $literal = is_literal_value($v)) {
     unless (length $k) {
@@ -927,6 +882,52 @@ sub _expand_bool {
   return $self->_expand_ident(-ident => $v);
 }
 
+sub _expand_andor {
+  my ($self, $k, $v) = @_;
+  my ($logic) = $k =~ /^-(.*)$/;
+  if (ref($v) eq 'HASH') {
+    return +{ -op => [
+      $logic,
+      map $self->_expand_expr({ $_ => $v->{$_} }, $logic),
+        sort keys %$v
+    ] };
+  }
+  if (ref($v) eq 'ARRAY') {
+    $logic eq 'and' or $logic eq 'or' or puke "unknown logic: $logic";
+
+    my @expr = grep {
+      (ref($_) eq 'ARRAY' and @$_)
+      or (ref($_) eq 'HASH' and %$_)
+      or 1
+    } @$v;
+
+    my @res;
+
+    while (my ($el) = splice @expr, 0, 1) {
+      puke "Supplying an empty left hand side argument is not supported in array-pairs"
+        unless defined($el) and length($el);
+      my $elref = ref($el);
+      if (!$elref) {
+        local our $Expand_Depth = 0;
+        push(@res, grep defined, $self->_expand_expr({ $el, shift(@expr) }));
+      } elsif ($elref eq 'ARRAY') {
+        push(@res, grep defined, $self->_expand_expr($el)) if @$el;
+      } elsif (my $l = is_literal_value($el)) {
+        push @res, { -literal => $l };
+      } elsif ($elref eq 'HASH') {
+        local our $Expand_Depth = 0;
+        push @res, grep defined, $self->_expand_expr($el) if %$el;
+      } else {
+        die "notreached";
+      }
+    }
+    # ???
+    # return $res[0] if @res == 1;
+    return { -op => [ $logic, @res ] };
+  }
+  die "notreached";
+}
+
 sub _recurse_where {
   my ($self, $where, $logic) = @_;
 
@@ -956,64 +957,98 @@ sub _render_ident {
   return $self->_convert($self->_quote($ident));
 }
 
-my %unop_postfix = map +($_ => 1),
-  'is null', 'is not null',
-  'asc', 'desc',
-;
-
-my %special = (
-  (map +($_ => 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 {
-          my ($l, $h) = map [ $self->render_aqt($_) ], $low, $high;
-          (join(' ', $l->[0], $self->_sqlcase('and'), $h->[0]),
-           @{$l}[1..$#$l], @{$h}[1..$#$h])
-        }
-      };
-      my ($lhsql, @lhbind) = $self->render_aqt($left);
-      return (
-        join(' ', '(', $lhsql, $self->_sqlcase($op), $rhsql, ')'),
-        @lhbind, @rhbind
-      );
-    }
+sub _render_list {
+  my ($self, $list) = @_;
+  my @parts = grep length($_->[0]), map [ $self->render_aqt($_) ], @$list;
+  return join(', ', map $_->[0], @parts), map @{$_}[1..$#$_], @parts;
+}
+
+sub _render_func {
+  my ($self, $rest) = @_;
+  my ($func, @args) = @$rest;
+  my @arg_sql;
+  my @bind = map {
+    my @x = @$_;
+    push @arg_sql, shift @x;
+    @x
+  } map [ $self->render_aqt($_) ], @args;
+  return ($self->_sqlcase($func).'('.join(', ', @arg_sql).')', @bind);
+}
+
+sub _render_bind {
+  my ($self,  $bind) = @_;
+  return ($self->_convert('?'), $self->_bindtype(@$bind));
+}
+
+sub _render_literal {
+  my ($self, $literal) = @_;
+  $self->_assert_bindval_matches_bindtype(@{$literal}[1..$#$literal]);
+  return @$literal;
+}
+
+our $RENDER_OP = {
+  (map +($_ => sub {
+    my ($self, $op, $args) = @_;
+    my ($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 {
+        my ($l, $h) = map [ $self->render_aqt($_) ], $low, $high;
+        (join(' ', $l->[0], $self->_sqlcase('and'), $h->[0]),
+         @{$l}[1..$#$l], @{$h}[1..$#$h])
+      }
+    };
+    my ($lhsql, @lhbind) = $self->render_aqt($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 {
-        my ($sql, @bind) = $self->render_aqt($_);
-        push @in_bind, @bind;
-        $sql;
-      } @$rhs;
-      my ($lhsql, @lbind) = $self->render_aqt($lhs);
-      return (
-        $lhsql.' '.$self->_sqlcase($op).' ( '
-        .join(', ', @in_sql)
-        .' )',
-        @lbind, @in_bind
-      );
-    }
+  (map +($_ => sub {
+    my ($self, $op, $args) = @_;
+    my ($lhs, $rhs) = @$args;
+    my @in_bind;
+    my @in_sql = map {
+      my ($sql, @bind) = $self->render_aqt($_);
+      push @in_bind, @bind;
+      $sql;
+    } @$rhs;
+    my ($lhsql, @lbind) = $self->render_aqt($lhs);
+    return (
+      $lhsql.' '.$self->_sqlcase($op).' ( '
+      .join(', ', @in_sql)
+      .' )',
+      @lbind, @in_bind
+    );
   }), 'in', 'not in'),
-);
+  (map +($_ => '_render_unop_postfix'),
+    'is null', 'is not null', 'asc', 'desc',
+  ),
+  (not => '_render_op_not'),
+  (map +($_ => sub {
+    my ($self, $op, $args) = @_;
+    my @parts = grep length($_->[0]), map [ $self->render_aqt($_) ], @$args;
+    return '' unless @parts;
+    return @{$parts[0]} if @parts == 1;
+    my ($final_sql) = join(
+      ' '.$self->_sqlcase($op).' ',
+      map $_->[0], @parts
+    );
+    return (
+      '('.$final_sql.')',
+      map @{$_}[1..$#$_], @parts
+    );
+  }), qw(and or)),
+};
 
 sub _render_op {
   my ($self, $v) = @_;
   my ($op, @args) = @$v;
-  $op =~ s/^-// if length($op) > 1;
-  $op = lc($op);
-  if (my $h = $special{$op}) {
-    return $self->$h(\@args);
+  if (my $r = $self->{render_op}{$op}) {
+    return $self->$r($op, \@args);
   }
   my $us = List::Util::first { $op =~ $_->{regex} } @{$self->{special_ops}};
   if ($us and @args > 1) {
@@ -1026,23 +1061,13 @@ sub _render_op {
   if (my $us = List::Util::first { $op =~ $_->{regex} } @{$self->{unary_ops}}) {
     return $self->${\($us->{handler})}($op, $args[0]);
   }
-  my $final_op = $op =~ /^(?:is|not)_/ ? join(' ', split '_', $op) : $op;
-  if (@args == 1 and $op !~ /^(and|or)$/) {
-    my ($expr_sql, @bind) = $self->render_aqt($args[0]);
-    my $op_sql = $self->_sqlcase($final_op);
-    my $final_sql = (
-      $unop_postfix{lc($final_op)}
-        ? "${expr_sql} ${op_sql}"
-        : "${op_sql} ${expr_sql}"
-    );
-    return (($op eq 'not' || $us ? '('.$final_sql.')' : $final_sql), @bind);
+  if (@args == 1) {
+    return $self->_render_unop_prefix($op, \@args);
   } else {
      my @parts = grep length($_->[0]), map [ $self->render_aqt($_) ], @args;
      return '' unless @parts;
-     my $is_andor = !!($op =~ /^(and|or)$/);
-     return @{$parts[0]} if $is_andor and @parts == 1;
-     my ($final_sql) = map +($is_andor ? "( ${_} )" : $_), join(
-       ' '.$self->_sqlcase($final_op).' ',
+     my ($final_sql) = join(
+       ' '.$self->_sqlcase($op).' ',
        map $_->[0], @parts
      );
      return (
@@ -1053,33 +1078,24 @@ sub _render_op {
   die "unhandled";
 }
 
-sub _render_list {
-  my ($self, $list) = @_;
-  my @parts = grep length($_->[0]), map [ $self->render_aqt($_) ], @$list;
-  return join(', ', map $_->[0], @parts), map @{$_}[1..$#$_], @parts;
+sub _render_op_not {
+  my ($self, $op, $v) = @_;
+  my ($sql, @bind) = $self->_render_unop_prefix($op, $v);
+  return "(${sql})", @bind;
 }
 
-sub _render_func {
-  my ($self, $rest) = @_;
-  my ($func, @args) = @$rest;
-  my @arg_sql;
-  my @bind = map {
-    my @x = @$_;
-    push @arg_sql, shift @x;
-    @x
-  } map [ $self->render_aqt($_) ], @args;
-  return ($self->_sqlcase($func).'('.join(', ', @arg_sql).')', @bind);
+sub _render_unop_prefix {
+  my ($self, $op, $v) = @_;
+  my ($expr_sql, @bind) = $self->render_aqt($v->[0]);
+  my $op_sql = $self->_sqlcase($op);
+  return ("${op_sql} ${expr_sql}", @bind);
 }
 
-sub _render_bind {
-  my ($self,  $bind) = @_;
-  return ($self->_convert('?'), $self->_bindtype(@$bind));
-}
-
-sub _render_literal {
-  my ($self, $literal) = @_;
-  $self->_assert_bindval_matches_bindtype(@{$literal}[1..$#$literal]);
-  return @$literal;
+sub _render_unop_postfix {
+  my ($self, $op, $v) = @_;
+  my ($expr_sql, @bind) = $self->render_aqt($v->[0]);
+  my $op_sql = $self->_sqlcase($op);
+  return ($expr_sql.' '.$op_sql, @bind);
 }
 
 # Some databases (SQLite) treat col IN (1, 2) different from
@@ -1134,16 +1150,15 @@ sub _expand_order_by {
         puke "ordering direction hash passed to order by must have exactly one key (-asc or -desc)";
       }
     }
-    my @exp = map +(defined($dir) ? { -op => [ $dir => $_ ] } : $_),
+    my @exp = map +(
+                defined($dir) ? { -op => [ $dir =~ /^-?(.*)$/ ,=> $_ ] } : $_
+              ),
                 map $self->expand_expr($_, -ident),
                 map ref($_) eq 'ARRAY' ? @$_ : $_, @to_expand;
     return (@exp > 1 ? { -list => \@exp } : $exp[0]);
   };
 
-  local @{$self->{expand_unary}}{qw(-asc -desc)} = (
-    sub { shift->$expander(asc => @_) },
-    sub { shift->$expander(desc => @_) },
-  );
+  local @{$self->{expand}}{qw(-asc -desc)} = (($expander) x 2);
 
   return $self->$expander(undef, $arg);
 }