X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FSQLMaker.pm;h=14fbb291ddf1c6cd90bd05ebab093075884963ed;hb=d71502b;hp=34b9c80820d055227ba2bd3a76e39fbe2ef7720c;hpb=8d47598dd975df026f838ff5e54f583c34fc6662;p=dbsrgits%2FDBIx-Class.git

diff --git a/lib/DBIx/Class/SQLMaker.pm b/lib/DBIx/Class/SQLMaker.pm
index 34b9c80..14fbb29 100644
--- a/lib/DBIx/Class/SQLMaker.pm
+++ b/lib/DBIx/Class/SQLMaker.pm
@@ -40,7 +40,6 @@ use mro 'c3';
 
 use Sub::Name 'subname';
 use DBIx::Class::Carp;
-use DBIx::Class::Exception;
 use namespace::clean;
 
 __PACKAGE__->mk_group_accessors (simple => qw/quote_char name_sep limit_dialect/);
@@ -71,9 +70,6 @@ BEGIN {
     my($func) = (caller(1))[3];
     __PACKAGE__->throw_exception("[$func] Fatal: " . join ('',  @_));
   };
-
-  # Current SQLA pollutes its namespace - clean for the time being
-  namespace::clean->clean_subroutines(qw/SQL::Abstract carp croak confess/);
 }
 
 # the "oh noes offset/top without limit" constant
@@ -89,6 +85,10 @@ BEGIN {
 # as the value to abuse with MSSQL ordered subqueries)
 sub __max_int () { 0x7FFFFFFF };
 
+# we ne longer need to check this - DBIC has ways of dealing with it
+# specifically ::Storage::DBI::_resolve_bindattrs()
+sub _assert_bindval_matches_bindtype () { 1 };
+
 # poor man's de-qualifier
 sub _quote {
   $_[0]->next::method( ( $_[0]{_dequalify_idents} and ! ref $_[1] )
@@ -133,16 +133,25 @@ sub select {
 
     ($sql, @bind) = $self->next::method ($table, $fields, $where);
 
-    my $limiter =
-      $self->can ('emulate_limit')  # also backcompat hook from SQLA::Limit
-        ||
-      do {
-        my $dialect = $self->limit_dialect
-          or $self->throw_exception( "Unable to generate SQL-limit - no limit dialect specified on $self, and no emulate_limit method found" );
-        $self->can ("_$dialect")
-          or $self->throw_exception(__PACKAGE__ . " does not implement the requested dialect '$dialect'");
-      }
-    ;
+    my $limiter;
+
+    if( $limiter = $self->can ('emulate_limit') ) {
+      carp_unique(
+        'Support for the legacy emulate_limit() mechanism inherited from '
+      . 'SQL::Abstract::Limit has been deprecated, and will be removed when '
+      . 'DBIC transitions to Data::Query. If your code uses this type of '
+      . 'limit specification please file an RT and provide the source of '
+      . 'your emulate_limit() implementation, so an acceptable upgrade-path '
+      . 'can be devised'
+      );
+    }
+    else {
+      my $dialect = $self->limit_dialect
+        or $self->throw_exception( "Unable to generate SQL-limit - no limit dialect specified on $self" );
+
+      $limiter = $self->can ("_$dialect")
+        or $self->throw_exception(__PACKAGE__ . " does not implement the requested dialect '$dialect'");
+    }
 
     $sql = $self->$limiter (
       $sql,
@@ -314,6 +323,18 @@ sub _order_by {
   }
 }
 
+sub _split_order_chunk {
+  my ($self, $chunk) = @_;
+
+  # strip off sort modifiers, but always succeed, so $1 gets reset
+  $chunk =~ s/ (?: \s+ (ASC|DESC) )? \s* $//ix;
+
+  return (
+    $chunk,
+    ( $1 and uc($1) eq 'DESC' ) ? 1 : 0,
+  );
+}
+
 sub _table {
 # optimized due to hotttnesss
 #  my ($self, $from) = @_;
@@ -346,7 +367,6 @@ sub _generate_join_clause {
 
 sub _recurse_from {
   my $self = shift;
-
   return join (' ', $self->_gen_from_blocks(@_) );
 }
 
@@ -449,6 +469,55 @@ sub _join_condition {
   return $self->_recurse_where($cond);
 }
 
+# This is hideously ugly, but SQLA does not understand multicol IN expressions
+# FIXME TEMPORARY - DQ should have native syntax for this
+# moved here to raise API questions
+#
+# !!! EXPERIMENTAL API !!! WILL CHANGE !!!
+sub _where_op_multicolumn_in {
+  my ($self, $lhs, $rhs) = @_;
+
+  if (! ref $lhs or ref $lhs eq 'ARRAY') {
+    my (@sql, @bind);
+    for (ref $lhs ? @$lhs : $lhs) {
+      if (! ref $_) {
+        push @sql, $self->_quote($_);
+      }
+      elsif (ref $_ eq 'SCALAR') {
+        push @sql, $$_;
+      }
+      elsif (ref $_ eq 'REF' and ref $$_ eq 'ARRAY') {
+        my ($s, @b) = @$$_;
+        push @sql, $s;
+        push @bind, @b;
+      }
+      else {
+        $self->throw_exception("ARRAY of @{[ ref $_ ]}es unsupported for multicolumn IN lhs...");
+      }
+    }
+    $lhs = \[ join(', ', @sql), @bind];
+  }
+  elsif (ref $lhs eq 'SCALAR') {
+    $lhs = \[ $$lhs ];
+  }
+  elsif (ref $lhs eq 'REF' and ref $$lhs eq 'ARRAY' ) {
+    # noop
+  }
+  else {
+    $self->throw_exception( ref($lhs) . "es unsupported for multicolumn IN lhs...");
+  }
+
+  # is this proper...?
+  $rhs = \[ $self->_recurse_where($rhs) ];
+
+  for ($lhs, $rhs) {
+    $$_->[0] = "( $$_->[0] )"
+      unless $$_->[0] =~ /^ \s* \( .* \) \s* ^/xs;
+  }
+
+  \[ join( ' IN ', shift @$$lhs, shift @$$rhs ), @$$lhs, @$$rhs ];
+}
+
 1;
 
 =head1 AUTHORS