The hack is no longer necessary with a recent sqla

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / SQLAHacks.pm

diff --git a/lib/DBIx/Class/SQLAHacks.pm b/lib/DBIx/Class/SQLAHacks.pm
index 15f1a94..429be4f 100644 (file)
--- a/lib/DBIx/Class/SQLAHacks.pm
+++ b/lib/DBIx/Class/SQLAHacks.pm
@@ -47,52 +47,6 @@ sub new {
   $self;
 }
 
-# Some databases (sqlite) do not handle multiple parenthesis
-# around in/between arguments. A tentative x IN ( (1, 2 ,3) )
-# is interpreted as x IN 1 or something similar.
-#
-# Since we currently do not have access to the SQLA AST, resort
-# to barbaric mutilation of any SQL supplied in literal form
-sub _strip_outer_paren {
-  my ($self, $arg) = @_;
-
-  return $self->_SWITCH_refkind ($arg, {
-    ARRAYREFREF => sub {
-      $$arg->[0] = __strip_outer_paren ($$arg->[0]);
-      return $arg;
-    },
-    SCALARREF => sub {
-      return \__strip_outer_paren( $$arg );
-    },
-    FALLBACK => sub {
-      return $arg
-    },
-  });
-}
-
-sub __strip_outer_paren {
-  my $sql = shift;
-
-  if ($sql and not ref $sql) {
-    while ($sql =~ /^ \s* \( (.*) \) \s* $/x ) {
-      $sql = $1;
-    }
-  }
-
-  return $sql;
-}
-
-sub _where_field_IN {
-  my ($self, $lhs, $op, $rhs) = @_;
-  $rhs = $self->_strip_outer_paren ($rhs);
-  return $self->SUPER::_where_field_IN ($lhs, $op, $rhs);
-}
-
-sub _where_field_BETWEEN {
-  my ($self, $lhs, $op, $rhs) = @_;
-  $rhs = $self->_strip_outer_paren ($rhs);
-  return $self->SUPER::_where_field_BETWEEN ($lhs, $op, $rhs);
-}
 
 # Slow but ANSI standard Limit/Offset support. DB2 uses this
 sub _RowNumberOver {
@@ -170,7 +124,8 @@ sub _Top {
       $quoted_alias = $self->_quote ('column_' . (@inner_select + 1) );
     }
     # column name seen more than once - alias it
-    elsif ($orig_colname && ($seen_names{$orig_colname} > 1) ) {
+    elsif ($orig_colname &&
+          ($seen_names{$orig_colname} && $seen_names{$orig_colname} > 1) ) {
       $quoted_alias = $self->_quote ("${table}__${orig_colname}");
     }
 
@@ -404,35 +359,33 @@ sub _recurse_fields {
   }
   elsif ($ref eq 'HASH') {
     my %hash = %$fields;
-    my ($select, $as);
 
-    if ($hash{-select}) {
-      $select = $self->_recurse_fields (delete $hash{-select});
-      $as = $self->_quote (delete $hash{-as});
-    }
-    else {
-      my ($func, $args) = each %hash;
-      delete $hash{$func};
-
-      if (lc ($func) eq 'distinct' && ref $args eq 'ARRAY' && @$args > 1) {
-        croak (
-          'The select => { distinct => ... } syntax is not supported for multiple columns.'
-         .' Instead please use { group_by => [ qw/' . (join ' ', @$args) . '/ ] }'
-         .' or { select => [ qw/' . (join ' ', @$args) . '/ ], distinct => 1 }'
-        );
-      }
-      $select = sprintf ('%s( %s )',
-        $self->_sqlcase($func),
-        $self->_recurse_fields($args)
+    my $as = delete $hash{-as};   # if supplied
+
+    my ($func, $args) = each %hash;
+    delete $hash{$func};
+
+    if (lc ($func) eq 'distinct' && ref $args eq 'ARRAY' && @$args > 1) {
+      croak (
+        'The select => { distinct => ... } syntax is not supported for multiple columns.'
+       .' Instead please use { group_by => [ qw/' . (join ' ', @$args) . '/ ] }'
+       .' or { select => [ qw/' . (join ' ', @$args) . '/ ], distinct => 1 }'
       );
     }
 
+    my $select = sprintf ('%s( %s )%s',
+      $self->_sqlcase($func),
+      $self->_recurse_fields($args),
+      $as
+        ? sprintf (' %s %s', $self->_sqlcase('as'), $as)
+        : ''
+    );
+
     # there should be nothing left
     if (keys %hash) {
       croak "Malformed select argument - too many keys in hash: " . join (',', keys %$fields );
     }
 
-    $select .= " AS $as" if $as;
     return $select;
   }
   # Is the second check absolutely necessary?
@@ -509,15 +462,21 @@ sub _recurse_from {
   foreach my $j (@join) {
     my ($to, $on) = @$j;
 
+
     # check whether a join type exists
-    my $join_clause = '';
     my $to_jt = ref($to) eq 'ARRAY' ? $to->[0] : $to;
-    if (ref($to_jt) eq 'HASH' and exists($to_jt->{-join_type})) {
-      $join_clause = ' '.uc($to_jt->{-join_type}).' JOIN ';
-    } else {
-      $join_clause = ' JOIN ';
+    my $join_type;
+    if (ref($to_jt) eq 'HASH' and defined($to_jt->{-join_type})) {
+      $join_type = $to_jt->{-join_type};
+      $join_type =~ s/^\s+ | \s+$//xg;
     }
-    push(@sqlf, $join_clause);
+
+    $join_type = $self->{_default_jointype} if not defined $join_type;
+
+    my $join_clause = sprintf ('%s JOIN ',
+      $join_type ?  ' ' . uc($join_type) : ''
+    );
+    push @sqlf, $join_clause;
 
     if (ref $to eq 'ARRAY') {
       push(@sqlf, '(', $self->_recurse_from(@$to), ')');