X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FSQL%2FAbstract.pm;h=340a757b1bb78fdbaf0fc02951d0d168ec533a04;hb=a01911a20b326afd1a45f97f14aca68206708eba;hp=2d9d88300914712ef335fd0c3dc2ac4e410f1a6b;hpb=def451518a3fcfa42429922879829365825495e8;p=scpubgit%2FQ-Branch.git

diff --git a/lib/SQL/Abstract.pm b/lib/SQL/Abstract.pm
index 2d9d883..340a757 100644
--- a/lib/SQL/Abstract.pm
+++ b/lib/SQL/Abstract.pm
@@ -208,6 +208,7 @@ sub new {
     (map +($_ => '_expand_op_is'), ('is', 'is_not')),
     ident => '_expand_ident',
     value => '_expand_value',
+    func => '_expand_func',
   };
 
   $opt{expand_op} = {
@@ -223,7 +224,7 @@ sub new {
   };
 
   $opt{render} = {
-    (map +("-$_", "_render_$_"), qw(op func bind ident literal row)),
+    (map +($_, "_render_$_"), qw(op func bind ident literal row)),
     %{$opt{render}||{}}
   };
 
@@ -233,7 +234,7 @@ sub new {
     (map +($_ => '_render_unop_postfix'),
       'is_null', 'is_not_null', 'asc', 'desc',
     ),
-    (not => '_render_op_not'),
+    (not => '_render_unop_paren'),
     (map +($_ => '_render_op_andor'), qw(and or)),
     ',' => '_render_op_multop',
   };
@@ -264,17 +265,49 @@ sub insert {
   my $data    = shift || return;
   my $options = shift;
 
-  my $method       = $self->_METHOD_FOR_refkind("_insert", $data);
-  my ($sql, @bind) = $self->$method($data);
-  $sql = join " ", $self->_sqlcase('insert into'), $table, $sql;
+  my $fields;
+
+  my ($f_aqt, $v_aqt) = $self->_expand_insert_values($data);
+
+  my @parts = ([ $self->_sqlcase('insert into').' '.$table ]);
+  push @parts, [ $self->render_aqt($f_aqt) ] if $f_aqt;
+  push @parts, [ $self->_sqlcase('values') ], [ $self->render_aqt($v_aqt) ];
 
   if ($options->{returning}) {
-    my ($s, @b) = $self->_insert_returning($options);
-    $sql .= $s;
-    push @bind, @b;
+    push @parts, [ $self->_insert_returning($options) ];
   }
 
-  return wantarray ? ($sql, @bind) : $sql;
+  return $self->join_clauses(' ', @parts);
+}
+
+sub _expand_insert_values {
+  my ($self, $data) = @_;
+  if (is_literal_value($data)) {
+    (undef, $self->expand_expr($data));
+  } else {
+    my ($fields, $values) = (
+      ref($data) eq 'HASH' ?
+        ([ sort keys %$data ], [ @{$data}{sort keys %$data} ])
+        : ([], $data)
+    );
+
+    # no names (arrayref) means can't generate bindtype
+    !($fields) && $self->{bindtype} eq 'columns'
+      && belch "can't do 'columns' bindtype when called with arrayref";
+
+    +(
+      (@$fields
+        ? $self->expand_expr({ -row => $fields }, -ident)
+        : undef
+      ),
+      +{ -row => [
+        map {
+         local our $Cur_Col_Meta = $fields->[$_];
+         $self->_expand_insert_value($values->[$_])
+         } 0..$#$values
+      ] },
+    );
+  }
 }
 
 # So that subclasses can override INSERT ... RETURNING separately from
@@ -294,80 +327,14 @@ sub _returning {
     : ($self->_sqlcase(' returning ').$sql, @bind);
 }
 
-sub _insert_HASHREF { # explicit list of fields and then values
-  my ($self, $data) = @_;
-
-  my @fields = sort keys %$data;
-
-  my ($sql, @bind) = $self->_insert_values($data);
-
-  # assemble SQL
-  $_ = $self->_quote($_) foreach @fields;
-  $sql = "( ".join(", ", @fields).") ".$sql;
-
-  return ($sql, @bind);
-}
-
-sub _insert_ARRAYREF { # just generate values(?,?) part (no list of fields)
-  my ($self, $data) = @_;
-
-  # no names (arrayref) so can't generate bindtype
-  $self->{bindtype} ne 'columns'
-    or belch "can't do 'columns' bindtype when called with arrayref";
-
-  my (@values, @all_bind);
-  foreach my $value (@$data) {
-    my ($values, @bind) = $self->_insert_value(undef, $value);
-    push @values, $values;
-    push @all_bind, @bind;
-  }
-  my $sql = $self->_sqlcase('values')." ( ".join(", ", @values)." )";
-  return ($sql, @all_bind);
-}
-
-sub _insert_ARRAYREFREF { # literal SQL with bind
-  my ($self, $data) = @_;
-
-  my ($sql, @bind) = @${$data};
-  $self->_assert_bindval_matches_bindtype(@bind);
-
-  return ($sql, @bind);
-}
-
-
-sub _insert_SCALARREF { # literal SQL without bind
-  my ($self, $data) = @_;
-
-  return ($$data);
-}
-
-sub _insert_values {
-  my ($self, $data) = @_;
-
-  my (@values, @all_bind);
-  foreach my $column (sort keys %$data) {
-    my ($values, @bind) = $self->_insert_value($column, $data->{$column});
-    push @values, $values;
-    push @all_bind, @bind;
-  }
-  my $sql = $self->_sqlcase('values')." ( ".join(", ", @values)." )";
-  return ($sql, @all_bind);
-}
-
-sub _insert_value {
-  my ($self, $column, $v) = @_;
-
-  return $self->render_aqt(
-    $self->_expand_insert_value($column, $v)
-  );
-}
-
 sub _expand_insert_value {
-  my ($self, $column, $v) = @_;
+  my ($self, $v) = @_;
+
+  my $k = our $Cur_Col_Meta;
 
   if (ref($v) eq 'ARRAY') {
     if ($self->{array_datatypes}) {
-      return +{ -bind => [ $column, $v ] };
+      return +{ -bind => [ $k, $v ] };
     }
     my ($sql, @bind) = @$v;
     $self->_assert_bindval_matches_bindtype(@bind);
@@ -376,13 +343,12 @@ sub _expand_insert_value {
   if (ref($v) eq 'HASH') {
     if (grep !/^-/, keys %$v) {
       belch "HASH ref as bind value in insert is not supported";
-      return +{ -bind => [ $column, $v ] };
+      return +{ -bind => [ $k, $v ] };
     }
   }
   if (!defined($v)) {
-    return +{ -bind => [ $column, undef ] };
+    return +{ -bind => [ $k, undef ] };
   }
-  local our $Cur_Col_Meta = $column;
   return $self->expand_expr($v);
 }
 
@@ -562,15 +528,19 @@ sub render_aqt {
   my ($self, $aqt) = @_;
   my ($k, $v, @rest) = %$aqt;
   die "No" if @rest;
+  die "Not a node type: $k" unless $k =~ s/^-//;
   if (my $meth = $self->{render}{$k}) {
-    return $self->$meth($v);
+    return $self->$meth($k, $v);
   }
   die "notreached: $k";
 }
 
 sub render_expr {
-  my ($self, $expr) = @_;
-  $self->render_aqt($self->expand_expr($expr));
+  my ($self, $expr, $default_scalar_to) = @_;
+  my ($sql, @bind) = $self->render_aqt(
+    $self->expand_expr($expr, $default_scalar_to)
+  );
+  return (wantarray ? ($sql, @bind) : $sql);
 }
 
 sub _normalize_op {
@@ -586,7 +556,7 @@ sub _expand_expr {
   if (ref($expr) eq 'HASH') {
     return undef unless my $kc = keys %$expr;
     if ($kc > 1) {
-      return $self->_expand_op_andor(-and => $expr);
+      return $self->_expand_op_andor(and => $expr);
     }
     my ($key, $value) = %$expr;
     if ($key =~ /^-/ and $key =~ s/ [_\s]? \d+ $//x ) {
@@ -596,8 +566,7 @@ sub _expand_expr {
     return $self->_expand_hashpair($key, $value);
   }
   if (ref($expr) eq 'ARRAY') {
-    my $logic = '-'.lc($self->{logic});
-    return $self->_expand_op_andor($logic, $expr);
+    return $self->_expand_op_andor(lc($self->{logic}), $expr);
   }
   if (my $literal = is_literal_value($expr)) {
     return +{ -literal => $literal };
@@ -619,6 +588,11 @@ sub _expand_hashpair {
   }
   if ($k =~ /^-/) {
     return $self->_expand_hashpair_op($k, $v);
+  } elsif ($k =~ /^[^\w]/i) {
+    my ($lhs, @rhs) = @$v;
+    return $self->_expand_op(
+      -op, [ $k, $self->expand_expr($lhs, -ident), @rhs ]
+    );
   }
   return $self->_expand_hashpair_ident($k, $v);
 }
@@ -631,7 +605,7 @@ sub _expand_hashpair_ident {
   # hash with multiple or no elements is andor
 
   if (ref($v) eq 'HASH' and keys %$v != 1) {
-    return $self->_expand_op_andor(-and => $v, $k);
+    return $self->_expand_op_andor(and => $v, $k);
   }
 
   # undef needs to be re-sent with cmp to achieve IS/IS NOT NULL
@@ -659,8 +633,8 @@ sub _expand_hashpair_ident {
     $self->_debug("ARRAY($k) means distribute over elements");
     my $logic = lc(
       $v->[0] =~ /^-(and|or)$/i
-        ? shift(@{$v = [ @$v ]})
-        : '-'.lc($self->{logic} || 'OR')
+        ? (shift(@{$v = [ @$v ]}), $1)
+        : lc($self->{logic} || 'OR')
     );
     return $self->_expand_op_andor(
       $logic => $v, $k
@@ -705,7 +679,7 @@ sub _expand_hashpair_op {
   my $op = $self->_normalize_op($k);
 
   if (my $exp = $self->{expand}{$op}) {
-    return $self->$exp($k, $v);
+    return $self->$exp($op, $v);
   }
 
   # Ops prefixed with -not_ get converted
@@ -746,33 +720,33 @@ sub _expand_hashpair_op {
   # an explicit node type is currently assumed to be expanded (this is almost
   # certainly wrong and there should be expansion anyway)
 
-  if ($self->{render}{$k}) {
+  if ($self->{render}{$op}) {
     return { $k => $v };
   }
 
-  # hashref RHS values get expanded and used as op/func args
+  my $type = $self->{unknown_unop_always_func} ? -func : -op;
 
-  if (
-    ref($v) eq 'HASH'
-    and keys %$v == 1
-    and (keys %$v)[0] =~ /^-/
-  ) {
-    my ($func) = $k =~ /^-(.*)$/;
-    { # Old SQLA compat
-      if (List::Util::first { $func =~ $_->{regex} } @{$self->{special_ops}}) {
-        return +{ -op => [ $func, $self->_expand_expr($v) ] };
-      }
-    }
-    return +{ -func => [ $func, $self->_expand_expr($v) ] };
-  }
-
-  # scalars and literals get simply expanded
+  { # Old SQLA compat
 
-  if (!ref($v) or is_literal_value($v)) {
-    return +{ -op => [ $op, $self->_expand_expr($v) ] };
+    if (
+      ref($v) eq 'HASH'
+      and keys %$v == 1
+      and (keys %$v)[0] =~ /^-/
+    ) {
+      $type = (
+        (List::Util::first { $op =~ $_->{regex} } @{$self->{special_ops}})
+          ? -op
+          : -func
+      )
+    }
   }
 
-  die "notreached";
+  return +{ $type => [
+    $op,
+    ($type eq -func and ref($v) eq 'ARRAY')
+      ? map $self->_expand_expr($_), @$v
+      : $self->_expand_expr($v)
+  ] };
 }
 
 sub _expand_hashpair_cmp {
@@ -813,13 +787,13 @@ sub _expand_hashtriple {
   if (ref($vv) eq 'ARRAY') {
     my @raw = @$vv;
     my $logic = (defined($raw[0]) and $raw[0] =~ /^-(and|or)$/i)
-      ? shift @raw : '-or';
+      ? (shift(@raw), $1) : 'or';
     my @values = map +{ $vk => $_ }, @raw;
     if (
       $op =~ $self->{inequality_op}
       or $op =~ $self->{not_like_op}
     ) {
-      if (lc($logic) eq '-or' and @values > 1) {
+      if (lc($logic) eq 'or' and @values > 1) {
         belch "A multi-element arrayref as an argument to the inequality op '${\uc(join ' ', split '_', $op)}' "
             . 'is technically equivalent to an always-true 1=1 (you probably wanted '
             . "to say ...{ \$inequality_op => [ -and => \@values ] }... instead)"
@@ -876,13 +850,19 @@ sub _dwim_op_to_is {
   puke(sprintf $fail, $op);
 }
 
+sub _expand_func {
+  my ($self, undef, $args) = @_;
+  my ($func, @args) = @$args;
+  return { -func => [ $func, map $self->expand_expr($_), @args ] };
+}
+
 sub _expand_ident {
-  my ($self, $op, $body, $k) = @_;
+  my ($self, undef, $body, $k) = @_;
   return $self->_expand_hashpair_cmp(
     $k, { -ident => $body }
   ) if defined($k);
   unless (defined($body) or (ref($body) and ref($body) eq 'ARRAY')) {
-    puke "$op requires a single plain scalar argument (a quotable identifier) or an arrayref of identifier parts";
+    puke "-ident requires a single plain scalar argument (a quotable identifier) or an arrayref of identifier parts";
   }
   my @parts = map split(/\Q${\($self->{name_sep}||'.')}\E/, $_),
                 ref($body) ? @$body : $body;
@@ -905,14 +885,17 @@ sub _expand_not {
 }
 
 sub _expand_row {
-  my ($self, $node, $args) = @_;
-  +{ $node => [ map $self->expand_expr($_), @$args ] };
+  my ($self, undef, $args) = @_;
+  +{ -row => [ map $self->expand_expr($_), @$args ] };
 }
 
 sub _expand_op {
-  my ($self, $node, $args) = @_;
+  my ($self, undef, $args) = @_;
   my ($op, @opargs) = @$args;
-  +{ $node => [ $op, map $self->expand_expr($_), @opargs ] };
+  if (my $exp = $self->{expand_op}{$op}) {
+    return $self->$exp($op, \@opargs);
+  }
+  +{ -op => [ $op, map $self->expand_expr($_), @opargs ] };
 }
 
 sub _expand_bool {
@@ -925,7 +908,7 @@ sub _expand_bool {
 }
 
 sub _expand_op_andor {
-  my ($self, $logic, $v, $k) = @_;
+  my ($self, $logop, $v, $k) = @_;
   if (defined $k) {
     $v = [ map +{ $k, $_ },
              (ref($v) eq 'HASH')
@@ -933,7 +916,6 @@ sub _expand_op_andor {
               : @$v,
          ];
   }
-  my ($logop) = $logic =~ /^-?(.*)$/;
   if (ref($v) eq 'HASH') {
     return undef unless keys %$v;
     return +{ -op => [
@@ -980,7 +962,6 @@ sub _expand_op_andor {
 
 sub _expand_op_is {
   my ($self, $op, $vv, $k) = @_;
-  $op =~ s/^-//;
   ($k, $vv) = @$vv unless defined $k;
   puke "$op can only take undef as argument"
     if defined($vv)
@@ -994,7 +975,6 @@ sub _expand_op_is {
 
 sub _expand_between {
   my ($self, $op, $vv, $k) = @_;
-  $op =~ s/^-//;
   $k = shift @{$vv = [ @$vv ]} unless defined $k;
   my @rhs = map $self->_expand_expr($_),
               ref($vv) eq 'ARRAY' ? @$vv : $vv;
@@ -1013,15 +993,14 @@ sub _expand_between {
 }
 
 sub _expand_in {
-  my ($self, $raw, $vv, $k) = @_;
+  my ($self, $op, $vv, $k) = @_;
   $k = shift @{$vv = [ @$vv ]} unless defined $k;
-  my $op = $self->_normalize_op($raw);
   if (my $literal = is_literal_value($vv)) {
     my ($sql, @bind) = @$literal;
     my $opened_sql = $self->_open_outer_paren($sql);
     return +{ -op => [
       $op, $self->expand_expr($k, -ident),
-      [ { -literal => [ $opened_sql, @bind ] } ]
+      { -literal => [ $opened_sql, @bind ] }
     ] };
   }
   my $undef_err =
@@ -1040,12 +1019,12 @@ sub _expand_in {
   return +{ -op => [
     $op,
     $self->expand_expr($k, -ident),
-    \@rhs
+    @rhs
   ] };
 }
 
 sub _expand_nest {
-  my ($self, $op, $v) = @_;
+  my ($self, undef, $v) = @_;
   # DBIx::Class requires a nest warning to be emitted once but the private
   # method it overrode to do so no longer exists
   if ($self->{warn_once_on_nest}) {
@@ -1061,8 +1040,8 @@ sub _expand_nest {
 }
 
 sub _expand_bind {
-  my ($self, $op, $bind) = @_;
-  return { $op => $bind };
+  my ($self, undef, $bind) = @_;
+  return { -bind => $bind };
 }
 
 sub _recurse_where {
@@ -1089,20 +1068,23 @@ sub _recurse_where {
 }
 
 sub _render_ident {
-  my ($self, $ident) = @_;
+  my ($self, undef, $ident) = @_;
 
   return $self->_convert($self->_quote($ident));
 }
 
 sub _render_row {
-  my ($self, $values) = @_;
-  my ($sql, @bind) = $self->_render_op([ ',', @$values ]);
+  my ($self, undef, $values) = @_;
+  my ($sql, @bind) = $self->_render_op(undef, [ ',', @$values ]);
   return "($sql)", @bind;  
 }
 
 sub _render_func {
-  my ($self, $rest) = @_;
+  my ($self, undef, $rest) = @_;
   my ($func, @args) = @$rest;
+  if (ref($func) eq 'HASH') {
+    $func = $self->render_aqt($func);
+  }
   my @arg_sql;
   my @bind = map {
     my @x = @$_;
@@ -1113,18 +1095,18 @@ sub _render_func {
 }
 
 sub _render_bind {
-  my ($self,  $bind) = @_;
+  my ($self, undef, $bind) = @_;
   return ($self->_convert('?'), $self->_bindtype(@$bind));
 }
 
 sub _render_literal {
-  my ($self, $literal) = @_;
+  my ($self, undef, $literal) = @_;
   $self->_assert_bindval_matches_bindtype(@{$literal}[1..$#$literal]);
   return @$literal;
 }
 
 sub _render_op {
-  my ($self, $v) = @_;
+  my ($self, undef, $v) = @_;
   my ($op, @args) = @$v;
   if (my $r = $self->{render_op}{$op}) {
     return $self->$r($op, \@args);
@@ -1134,18 +1116,20 @@ sub _render_op {
 
     my $op = join(' ', split '_', $op);
 
-    my $us = List::Util::first { $op =~ $_->{regex} } @{$self->{special_ops}};
-    if ($us and @args > 1) {
+    my $ss = List::Util::first { $op =~ $_->{regex} } @{$self->{special_ops}};
+    if ($ss and @args > 1) {
       puke "Special op '${op}' requires first value to be identifier"
         unless my ($ident) = map $_->{-ident}, grep ref($_) eq 'HASH', $args[0];
       my $k = join(($self->{name_sep}||'.'), @$ident);
       local our $Expand_Depth = 1;
-      return $self->${\($us->{handler})}($k, $op, $args[1]);
+      return $self->${\($ss->{handler})}($k, $op, $args[1]);
     }
     if (my $us = List::Util::first { $op =~ $_->{regex} } @{$self->{unary_ops}}) {
       return $self->${\($us->{handler})}($op, $args[0]);
     }
-
+    if ($ss) {
+      return $self->_render_unop_paren($op, \@args);
+    }
   }
   if (@args == 1) {
     return $self->_render_unop_prefix($op, \@args);
@@ -1183,13 +1167,13 @@ sub _render_op_between {
 
 sub _render_op_in {
   my ($self, $op, $args) = @_;
-  my ($lhs, $rhs) = @$args;
+  my ($lhs, @rhs) = @$args;
   my @in_bind;
   my @in_sql = map {
     my ($sql, @bind) = $self->render_aqt($_);
     push @in_bind, @bind;
     $sql;
-  } @$rhs;
+  } @rhs;
   my ($lhsql, @lbind) = $self->render_aqt($lhs);
   return (
     $lhsql.' '.$self->_sqlcase(join ' ', split '_', $op).' ( '
@@ -1204,7 +1188,7 @@ sub _render_op_andor {
   my @parts = grep length($_->[0]), map [ $self->render_aqt($_) ], @$args;
   return '' unless @parts;
   return @{$parts[0]} if @parts == 1;
-  my ($sql, @bind) = $self->_render_op_multop($op, $args);
+  my ($sql, @bind) = $self->join_clauses(' '.$self->_sqlcase($op).' ', @parts);
   return '( '.$sql.' )', @bind;
 }
 
@@ -1213,16 +1197,22 @@ sub _render_op_multop {
   my @parts = grep length($_->[0]), map [ $self->render_aqt($_) ], @$args;
   return '' unless @parts;
   return @{$parts[0]} if @parts == 1;
-  my ($final_sql) = join(
-    ($op eq ',' ? '' : ' ').$self->_sqlcase(join ' ', split '_', $op).' ',
-    map $_->[0], @parts
-  );
+  my $join = ($op eq ','
+                ? ', '
+                :  ' '.$self->_sqlcase(join ' ', split '_', $op).' '
+             );
+  return $self->join_clauses($join, @parts);
+}
+
+sub join_clauses {
+  my ($self, $join, @parts) = @_;
   return (
-    $final_sql,
-    map @{$_}[1..$#$_], @parts
+    join($join, map $_->[0], @parts),
+    (wantarray ? (map @{$_}[1..$#$_], @parts) : ()),
   );
 }
-sub _render_op_not {
+
+sub _render_unop_paren {
   my ($self, $op, $v) = @_;
   my ($sql, @bind) = $self->_render_unop_prefix($op, $v);
   return "(${sql})", @bind;
@@ -1283,6 +1273,9 @@ sub _expand_order_by {
 
   return unless defined($arg) and not (ref($arg) eq 'ARRAY' and !@$arg);
 
+  return $self->_expand_maybe_list_expr($arg)
+    if ref($arg) eq 'HASH' and ($arg->{-op}||[''])->[0] eq ',';
+
   my $expander = sub {
     my ($self, $dir, $expr) = @_;
     my @to_expand = ref($expr) eq 'ARRAY' ? @$expr : $expr;
@@ -1368,6 +1361,10 @@ sub _table  {
 
 sub _expand_maybe_list_expr {
   my ($self, $expr, $default) = @_;
+  return { -op => [
+    ',', map $self->expand_expr($_, $default), 
+          @{$expr->{-op}}[1..$#{$expr->{-op}}]
+  ] } if ref($expr) eq 'HASH' and ($expr->{-op}||[''])->[0] eq ',';
   return +{ -op => [ ',',
     map $self->expand_expr($_, $default),
       ref($expr) eq 'ARRAY' ? @$expr : $expr