diff options
Diffstat (limited to 'lib/arel')
| -rw-r--r-- | lib/arel/visitors/bind_visitor.rb | 6 | ||||
| -rw-r--r-- | lib/arel/visitors/depth_first.rb | 112 | ||||
| -rw-r--r-- | lib/arel/visitors/dot.rb | 150 | ||||
| -rw-r--r-- | lib/arel/visitors/ibm_db.rb | 4 | ||||
| -rw-r--r-- | lib/arel/visitors/informix.rb | 32 | ||||
| -rw-r--r-- | lib/arel/visitors/join_sql.rb | 4 | ||||
| -rw-r--r-- | lib/arel/visitors/mssql.rb | 24 | ||||
| -rw-r--r-- | lib/arel/visitors/mysql.rb | 30 | ||||
| -rw-r--r-- | lib/arel/visitors/oracle.rb | 32 | ||||
| -rw-r--r-- | lib/arel/visitors/order_clauses.rb | 4 | ||||
| -rw-r--r-- | lib/arel/visitors/postgresql.rb | 14 | ||||
| -rw-r--r-- | lib/arel/visitors/sqlite.rb | 4 | ||||
| -rw-r--r-- | lib/arel/visitors/to_sql.rb | 329 | ||||
| -rw-r--r-- | lib/arel/visitors/visitor.rb | 4 | ||||
| -rw-r--r-- | lib/arel/visitors/where_sql.rb | 4 | 
15 files changed, 370 insertions, 383 deletions
diff --git a/lib/arel/visitors/bind_visitor.rb b/lib/arel/visitors/bind_visitor.rb index 77b3f8237b..5cb251ffde 100644 --- a/lib/arel/visitors/bind_visitor.rb +++ b/lib/arel/visitors/bind_visitor.rb @@ -13,15 +13,15 @@ module Arel        private -      def visit_Arel_Nodes_Assignment o, a +      def visit_Arel_Nodes_Assignment o          if o.right.is_a? Arel::Nodes::BindParam -          "#{visit o.left, a} = #{visit o.right, a}" +          "#{visit o.left} = #{visit o.right}"          else            super          end        end -      def visit_Arel_Nodes_BindParam o, a +      def visit_Arel_Nodes_BindParam o          if @block            @block.call          else diff --git a/lib/arel/visitors/depth_first.rb b/lib/arel/visitors/depth_first.rb index 18bd81fb9c..1770ab21d5 100644 --- a/lib/arel/visitors/depth_first.rb +++ b/lib/arel/visitors/depth_first.rb @@ -7,13 +7,13 @@ module Arel        private -      def visit o, a = nil +      def visit o          super          @block.call o        end -      def unary o, a -        visit o.expr, a +      def unary o +        visit o.expr        end        alias :visit_Arel_Nodes_Group             :unary        alias :visit_Arel_Nodes_Grouping          :unary @@ -28,10 +28,10 @@ module Arel        alias :visit_Arel_Nodes_Top               :unary        alias :visit_Arel_Nodes_UnqualifiedColumn :unary -      def function o, a -        visit o.expressions, a -        visit o.alias, a -        visit o.distinct, a +      def function o +        visit o.expressions +        visit o.alias +        visit o.distinct        end        alias :visit_Arel_Nodes_Avg    :function        alias :visit_Arel_Nodes_Exists :function @@ -39,27 +39,27 @@ module Arel        alias :visit_Arel_Nodes_Min    :function        alias :visit_Arel_Nodes_Sum    :function -      def visit_Arel_Nodes_NamedFunction o, a -        visit o.name, a -        visit o.expressions, a -        visit o.distinct, a -        visit o.alias, a +      def visit_Arel_Nodes_NamedFunction o +        visit o.name +        visit o.expressions +        visit o.distinct +        visit o.alias        end -      def visit_Arel_Nodes_Count o, a -        visit o.expressions, a -        visit o.alias, a -        visit o.distinct, a +      def visit_Arel_Nodes_Count o +        visit o.expressions +        visit o.alias +        visit o.distinct        end -      def nary o, a -        o.children.each { |child| visit child, a } +      def nary o +        o.children.each { |child| visit child}        end        alias :visit_Arel_Nodes_And :nary -      def binary o, a -        visit o.left, a -        visit o.right, a +      def binary o +        visit o.left +        visit o.right        end        alias :visit_Arel_Nodes_As                 :binary        alias :visit_Arel_Nodes_Assignment         :binary @@ -83,13 +83,13 @@ module Arel        alias :visit_Arel_Nodes_TableAlias         :binary        alias :visit_Arel_Nodes_Values             :binary -      def visit_Arel_Nodes_StringJoin o, a -        visit o.left, a +      def visit_Arel_Nodes_StringJoin o +        visit o.left        end -      def visit_Arel_Attribute o, a -        visit o.relation, a -        visit o.name, a +      def visit_Arel_Attribute o +        visit o.relation +        visit o.name        end        alias :visit_Arel_Attributes_Integer :visit_Arel_Attribute        alias :visit_Arel_Attributes_Float :visit_Arel_Attribute @@ -99,11 +99,11 @@ module Arel        alias :visit_Arel_Attributes_Attribute :visit_Arel_Attribute        alias :visit_Arel_Attributes_Decimal :visit_Arel_Attribute -      def visit_Arel_Table o, a -        visit o.name, a +      def visit_Arel_Table o +        visit o.name        end -      def terminal o, a +      def terminal o        end        alias :visit_ActiveSupport_Multibyte_Chars :terminal        alias :visit_ActiveSupport_StringInquirer  :terminal @@ -126,43 +126,43 @@ module Arel        alias :visit_Time                          :terminal        alias :visit_TrueClass                     :terminal -      def visit_Arel_Nodes_InsertStatement o, a -        visit o.relation, a -        visit o.columns, a -        visit o.values, a +      def visit_Arel_Nodes_InsertStatement o +        visit o.relation +        visit o.columns +        visit o.values        end -      def visit_Arel_Nodes_SelectCore o, a -        visit o.projections, a -        visit o.source, a -        visit o.wheres, a -        visit o.groups, a -        visit o.windows, a -        visit o.having, a +      def visit_Arel_Nodes_SelectCore o +        visit o.projections +        visit o.source +        visit o.wheres +        visit o.groups +        visit o.windows +        visit o.having        end -      def visit_Arel_Nodes_SelectStatement o, a -        visit o.cores, a -        visit o.orders, a -        visit o.limit, a -        visit o.lock, a -        visit o.offset, a +      def visit_Arel_Nodes_SelectStatement o +        visit o.cores +        visit o.orders +        visit o.limit +        visit o.lock +        visit o.offset        end -      def visit_Arel_Nodes_UpdateStatement o, a -        visit o.relation, a -        visit o.values, a -        visit o.wheres, a -        visit o.orders, a -        visit o.limit, a +      def visit_Arel_Nodes_UpdateStatement o +        visit o.relation +        visit o.values +        visit o.wheres +        visit o.orders +        visit o.limit        end -      def visit_Array o, a -        o.each { |i| visit i, a } +      def visit_Array o +        o.each { |i| visit i }        end -      def visit_Hash o, a -        o.each { |k,v| visit(k, a); visit(v, a) } +      def visit_Hash o +        o.each { |k,v| visit(k); visit(v) }        end      end    end diff --git a/lib/arel/visitors/dot.rb b/lib/arel/visitors/dot.rb index cb4c2d494c..b2fa6bfbd5 100644 --- a/lib/arel/visitors/dot.rb +++ b/lib/arel/visitors/dot.rb @@ -28,41 +28,41 @@ module Arel        end        private -      def visit_Arel_Nodes_Ordering o, a -        visit_edge o, a, "expr" +      def visit_Arel_Nodes_Ordering o +        visit_edge o, "expr"        end -      def visit_Arel_Nodes_TableAlias o, a -        visit_edge o, a, "name" -        visit_edge o, a, "relation" +      def visit_Arel_Nodes_TableAlias o +        visit_edge o, "name" +        visit_edge o, "relation"        end -      def visit_Arel_Nodes_Count o, a -        visit_edge o, a, "expressions" -        visit_edge o, a, "distinct" +      def visit_Arel_Nodes_Count o +        visit_edge o, "expressions" +        visit_edge o, "distinct"        end -      def visit_Arel_Nodes_Values o, a -        visit_edge o, a, "expressions" +      def visit_Arel_Nodes_Values o +        visit_edge o, "expressions"        end -      def visit_Arel_Nodes_StringJoin o, a -        visit_edge o, a, "left" +      def visit_Arel_Nodes_StringJoin o +        visit_edge o, "left"        end -      def visit_Arel_Nodes_InnerJoin o, a -        visit_edge o, a, "left" -        visit_edge o, a, "right" +      def visit_Arel_Nodes_InnerJoin o +        visit_edge o, "left" +        visit_edge o, "right"        end        alias :visit_Arel_Nodes_OuterJoin :visit_Arel_Nodes_InnerJoin -      def visit_Arel_Nodes_DeleteStatement o, a -        visit_edge o, a, "relation" -        visit_edge o, a, "wheres" +      def visit_Arel_Nodes_DeleteStatement o +        visit_edge o, "relation" +        visit_edge o, "wheres"        end -      def unary o, a -        visit_edge o, a, "expr" +      def unary o +        visit_edge o, "expr"        end        alias :visit_Arel_Nodes_Group             :unary        alias :visit_Arel_Nodes_Grouping          :unary @@ -78,23 +78,23 @@ module Arel        alias :visit_Arel_Nodes_Rows              :unary        alias :visit_Arel_Nodes_Range             :unary -      def window o, a -        visit_edge o, a, "orders" -        visit_edge o, a, "framing" +      def window o +        visit_edge o, "orders" +        visit_edge o, "framing"        end        alias :visit_Arel_Nodes_Window            :window -      def named_window o, a -        visit_edge o, a, "orders" -        visit_edge o, a, "framing" -        visit_edge o, a, "name" +      def named_window o +        visit_edge o, "orders" +        visit_edge o, "framing" +        visit_edge o, "name"        end        alias :visit_Arel_Nodes_NamedWindow       :named_window -      def function o, a -        visit_edge o, a, "expressions" -        visit_edge o, a, "distinct" -        visit_edge o, a, "alias" +      def function o +        visit_edge o, "expressions" +        visit_edge o, "distinct" +        visit_edge o, "alias"        end        alias :visit_Arel_Nodes_Exists :function        alias :visit_Arel_Nodes_Min    :function @@ -102,52 +102,52 @@ module Arel        alias :visit_Arel_Nodes_Avg    :function        alias :visit_Arel_Nodes_Sum    :function -      def extract o, a -        visit_edge o, a, "expressions" -        visit_edge o, a, "alias" +      def extract o +        visit_edge o, "expressions" +        visit_edge o, "alias"        end        alias :visit_Arel_Nodes_Extract :extract -      def visit_Arel_Nodes_NamedFunction o, a -        visit_edge o, a, "name" -        visit_edge o, a, "expressions" -        visit_edge o, a, "distinct" -        visit_edge o, a, "alias" +      def visit_Arel_Nodes_NamedFunction o +        visit_edge o, "name" +        visit_edge o, "expressions" +        visit_edge o, "distinct" +        visit_edge o, "alias"        end -      def visit_Arel_Nodes_InsertStatement o, a -        visit_edge o, a, "relation" -        visit_edge o, a, "columns" -        visit_edge o, a, "values" +      def visit_Arel_Nodes_InsertStatement o +        visit_edge o, "relation" +        visit_edge o, "columns" +        visit_edge o, "values"        end -      def visit_Arel_Nodes_SelectCore o, a -        visit_edge o, a, "source" -        visit_edge o, a, "projections" -        visit_edge o, a, "wheres" -        visit_edge o, a, "windows" +      def visit_Arel_Nodes_SelectCore o +        visit_edge o, "source" +        visit_edge o, "projections" +        visit_edge o, "wheres" +        visit_edge o,  "windows"        end -      def visit_Arel_Nodes_SelectStatement o, a -        visit_edge o, a, "cores" -        visit_edge o, a, "limit" -        visit_edge o, a, "orders" -        visit_edge o, a, "offset" +      def visit_Arel_Nodes_SelectStatement o +        visit_edge o, "cores" +        visit_edge o, "limit" +        visit_edge o, "orders" +        visit_edge o, "offset"        end -      def visit_Arel_Nodes_UpdateStatement o, a -        visit_edge o, a, "relation" -        visit_edge o, a, "wheres" -        visit_edge o, a, "values" +      def visit_Arel_Nodes_UpdateStatement o +        visit_edge o, "relation" +        visit_edge o, "wheres" +        visit_edge o, "values"        end -      def visit_Arel_Table o, a -        visit_edge o, a, "name" +      def visit_Arel_Table o +        visit_edge o, "name"        end -      def visit_Arel_Attribute o, a -        visit_edge o, a, "relation" -        visit_edge o, a, "name" +      def visit_Arel_Attribute o +        visit_edge o, "relation" +        visit_edge o, "name"        end        alias :visit_Arel_Attributes_Integer :visit_Arel_Attribute        alias :visit_Arel_Attributes_Float :visit_Arel_Attribute @@ -156,16 +156,16 @@ module Arel        alias :visit_Arel_Attributes_Boolean :visit_Arel_Attribute        alias :visit_Arel_Attributes_Attribute :visit_Arel_Attribute -      def nary o, a +      def nary o          o.children.each_with_index do |x,i| -          edge(i) { visit x, a } +          edge(i) { visit x }          end        end        alias :visit_Arel_Nodes_And :nary -      def binary o, a -        visit_edge o, a, "left" -        visit_edge o, a, "right" +      def binary o +        visit_edge o, "left" +        visit_edge o, "right"        end        alias :visit_Arel_Nodes_As                 :binary        alias :visit_Arel_Nodes_Assignment         :binary @@ -184,7 +184,7 @@ module Arel        alias :visit_Arel_Nodes_Or                 :binary        alias :visit_Arel_Nodes_Over               :binary -      def visit_String o, a +      def visit_String o          @node_stack.last.fields << o        end        alias :visit_Time :visit_String @@ -200,23 +200,23 @@ module Arel        alias :visit_Symbol :visit_String        alias :visit_Arel_Nodes_SqlLiteral :visit_String -      def visit_Hash o, a +      def visit_Hash o          o.each_with_index do |pair, i| -          edge("pair_#{i}")   { visit pair, a } +          edge("pair_#{i}")   { visit pair }          end        end -      def visit_Array o, a +      def visit_Array o          o.each_with_index do |x,i| -          edge(i) { visit x, a } +          edge(i) { visit x }          end        end -      def visit_edge o, a, method -        edge(method) { visit o.send(method), a } +      def visit_edge o, method +        edge(method) { visit o.send(method) }        end -      def visit o, a = nil +      def visit o          if node = @seen[o.object_id]            @edge_stack.last.to = node            return diff --git a/lib/arel/visitors/ibm_db.rb b/lib/arel/visitors/ibm_db.rb index 13af27df71..a41f8ff573 100644 --- a/lib/arel/visitors/ibm_db.rb +++ b/lib/arel/visitors/ibm_db.rb @@ -3,8 +3,8 @@ module Arel      class IBM_DB < Arel::Visitors::ToSql        private -      def visit_Arel_Nodes_Limit o, a -        "FETCH FIRST #{visit o.expr, a} ROWS ONLY" +      def visit_Arel_Nodes_Limit o +        "FETCH FIRST #{visit o.expr } ROWS ONLY"        end      end diff --git a/lib/arel/visitors/informix.rb b/lib/arel/visitors/informix.rb index a578119d9b..244c68bed3 100644 --- a/lib/arel/visitors/informix.rb +++ b/lib/arel/visitors/informix.rb @@ -2,30 +2,30 @@ module Arel    module Visitors      class Informix < Arel::Visitors::ToSql        private -      def visit_Arel_Nodes_SelectStatement o, a +      def visit_Arel_Nodes_SelectStatement o          [            "SELECT", -          (visit(o.offset, a) if o.offset), -          (visit(o.limit, a) if o.limit), -          o.cores.map { |x| visit_Arel_Nodes_SelectCore x, a }.join, -          ("ORDER BY #{o.orders.map { |x| visit x, a }.join(', ')}" unless o.orders.empty?), -          (visit(o.lock, a) if o.lock), +          (visit(o.offset) if o.offset), +          (visit(o.limit) if o.limit), +          o.cores.map { |x| visit_Arel_Nodes_SelectCore x }.join, +          ("ORDER BY #{o.orders.map { |x| visit x }.join(', ')}" unless o.orders.empty?), +          (visit(o.lock) if o.lock),          ].compact.join ' '        end -      def visit_Arel_Nodes_SelectCore o, a +      def visit_Arel_Nodes_SelectCore o          [ -          "#{o.projections.map { |x| visit x, a }.join ', '}", -          ("FROM #{visit(o.source, a)}" if o.source && !o.source.empty?), -          ("WHERE #{o.wheres.map { |x| visit x, a }.join ' AND ' }" unless o.wheres.empty?), -          ("GROUP BY #{o.groups.map { |x| visit x, a }.join ', ' }" unless o.groups.empty?), -          (visit(o.having, a) if o.having), +          "#{o.projections.map { |x| visit x }.join ', '}", +          ("FROM #{visit(o.source)}" if o.source && !o.source.empty?), +          ("WHERE #{o.wheres.map { |x| visit x }.join ' AND ' }" unless o.wheres.empty?), +          ("GROUP BY #{o.groups.map { |x| visit x }.join ', ' }" unless o.groups.empty?), +          (visit(o.having) if o.having),          ].compact.join ' '        end -      def visit_Arel_Nodes_Offset o, a -        "SKIP #{visit o.expr, a}" +      def visit_Arel_Nodes_Offset o +        "SKIP #{visit o.expr}"        end -      def visit_Arel_Nodes_Limit o, a -        "LIMIT #{visit o.expr, a}" +      def visit_Arel_Nodes_Limit o +        "LIMIT #{visit o.expr}"        end      end    end diff --git a/lib/arel/visitors/join_sql.rb b/lib/arel/visitors/join_sql.rb index 9708887075..1cdd7eb5ca 100644 --- a/lib/arel/visitors/join_sql.rb +++ b/lib/arel/visitors/join_sql.rb @@ -11,8 +11,8 @@ module Arel      module JoinSql        private -      def visit_Arel_Nodes_SelectCore o, a -        o.source.right.map { |j| visit j, a }.join ' ' +      def visit_Arel_Nodes_SelectCore o +        o.source.right.map { |j| visit j }.join ' '        end      end    end diff --git a/lib/arel/visitors/mssql.rb b/lib/arel/visitors/mssql.rb index 2f5edce19a..ef0b78058e 100644 --- a/lib/arel/visitors/mssql.rb +++ b/lib/arel/visitors/mssql.rb @@ -6,20 +6,20 @@ module Arel        # `top` wouldn't really work here. I.e. User.select("distinct first_name").limit(10) would generate        # "select top 10 distinct first_name from users", which is invalid query! it should be        # "select distinct top 10 first_name from users" -      def visit_Arel_Nodes_Top o, a +      def visit_Arel_Nodes_Top o          ""        end -      def visit_Arel_Nodes_SelectStatement o, a +      def visit_Arel_Nodes_SelectStatement o          if !o.limit && !o.offset -          return super o, a +          return super o          end -        select_order_by = "ORDER BY #{o.orders.map { |x| visit x, a }.join(', ')}" unless o.orders.empty? +        select_order_by = "ORDER BY #{o.orders.map { |x| visit x }.join(', ')}" unless o.orders.empty?          is_select_count = false          sql = o.cores.map { |x| -          core_order_by = select_order_by || determine_order_by(x, a) +          core_order_by = select_order_by || determine_order_by(x)            if select_count? x              x.projections = [row_num_literal(core_order_by)]              is_select_count = true @@ -27,7 +27,7 @@ module Arel              x.projections << row_num_literal(core_order_by)            end -          visit_Arel_Nodes_SelectCore x, a +          visit_Arel_Nodes_SelectCore x          }.join          sql = "SELECT _t.* FROM (#{sql}) as _t WHERE #{get_offset_limit_clause(o)}" @@ -46,11 +46,11 @@ module Arel          end        end -      def determine_order_by x, a +      def determine_order_by x          unless x.groups.empty? -          "ORDER BY #{x.groups.map { |g| visit g, a }.join ', ' }" +          "ORDER BY #{x.groups.map { |g| visit g }.join ', ' }"          else -          "ORDER BY #{find_left_table_pk(x.froms, a)}" +          "ORDER BY #{find_left_table_pk(x.froms)}"          end        end @@ -64,9 +64,9 @@ module Arel        # FIXME raise exception of there is no pk?        # FIXME!! Table.primary_key will be deprecated. What is the replacement?? -      def find_left_table_pk o, a -        return visit o.primary_key, a if o.instance_of? Arel::Table -        find_left_table_pk o.left, a if o.kind_of? Arel::Nodes::Join +      def find_left_table_pk o +        return visit o.primary_key if o.instance_of? Arel::Table +        find_left_table_pk o.left if o.kind_of? Arel::Nodes::Join        end      end    end diff --git a/lib/arel/visitors/mysql.rb b/lib/arel/visitors/mysql.rb index ec9d91f8ce..3b911e826f 100644 --- a/lib/arel/visitors/mysql.rb +++ b/lib/arel/visitors/mysql.rb @@ -2,19 +2,19 @@ module Arel    module Visitors      class MySQL < Arel::Visitors::ToSql        private -      def visit_Arel_Nodes_Union o, a, suppress_parens = false +      def visit_Arel_Nodes_Union o, suppress_parens = false          left_result = case o.left                        when Arel::Nodes::Union -                        visit_Arel_Nodes_Union o.left, a, true +                        visit_Arel_Nodes_Union o.left, true                        else -                        visit o.left, a +                        visit o.left                        end          right_result = case o.right                         when Arel::Nodes::Union -                         visit_Arel_Nodes_Union o.right, a, true +                         visit_Arel_Nodes_Union o.right, true                         else -                         visit o.right, a +                         visit o.right                         end          if suppress_parens @@ -24,32 +24,32 @@ module Arel          end        end -      def visit_Arel_Nodes_Bin o, a -        "BINARY #{visit o.expr, a}" +      def visit_Arel_Nodes_Bin o +        "BINARY #{visit o.expr}"        end        ###        # :'(        # http://dev.mysql.com/doc/refman/5.0/en/select.html#id3482214 -      def visit_Arel_Nodes_SelectStatement o, a +      def visit_Arel_Nodes_SelectStatement o          if o.offset && !o.limit            o.limit = Arel::Nodes::Limit.new(Nodes.build_quoted(18446744073709551615))          end          super        end -      def visit_Arel_Nodes_SelectCore o, a +      def visit_Arel_Nodes_SelectCore o          o.froms ||= Arel.sql('DUAL')          super        end -      def visit_Arel_Nodes_UpdateStatement o, a +      def visit_Arel_Nodes_UpdateStatement o          [ -          "UPDATE #{visit o.relation, a}", -          ("SET #{o.values.map { |value| visit value, a }.join ', '}" unless o.values.empty?), -          ("WHERE #{o.wheres.map { |x| visit x, a }.join ' AND '}" unless o.wheres.empty?), -          ("ORDER BY #{o.orders.map { |x| visit x, a }.join(', ')}" unless o.orders.empty?), -          (visit(o.limit, a) if o.limit), +          "UPDATE #{visit o.relation}", +          ("SET #{o.values.map { |value| visit value }.join ', '}" unless o.values.empty?), +          ("WHERE #{o.wheres.map { |x| visit x }.join ' AND '}" unless o.wheres.empty?), +          ("ORDER BY #{o.orders.map { |x| visit x }.join(', ')}" unless o.orders.empty?), +          (visit(o.limit) if o.limit),          ].compact.join ' '        end diff --git a/lib/arel/visitors/oracle.rb b/lib/arel/visitors/oracle.rb index b6f7b4cc3c..0cd0179931 100644 --- a/lib/arel/visitors/oracle.rb +++ b/lib/arel/visitors/oracle.rb @@ -3,8 +3,8 @@ module Arel      class Oracle < Arel::Visitors::ToSql        private -      def visit_Arel_Nodes_SelectStatement o, a -        o = order_hacks(o, a) +      def visit_Arel_Nodes_SelectStatement o +        o = order_hacks(o)          # if need to select first records without ORDER BY and GROUP BY and without DISTINCT          # then can use simple ROWNUM in WHERE clause @@ -20,52 +20,52 @@ module Arel            limit    = o.limit.expr.to_i            offset   = o.offset            o.offset = nil -          sql = super(o, a) +          sql = super(o)            return <<-eosql                SELECT * FROM (                  SELECT raw_sql_.*, rownum raw_rnum_                  FROM (#{sql}) raw_sql_                  WHERE rownum <= #{offset.expr.to_i + limit}                ) -              WHERE #{visit offset, a} +              WHERE #{visit offset}            eosql          end          if o.limit            o       = o.dup            limit   = o.limit.expr -          return "SELECT * FROM (#{super(o, a)}) WHERE ROWNUM <= #{visit limit, a}" +          return "SELECT * FROM (#{super(o)}) WHERE ROWNUM <= #{visit limit}"          end          if o.offset            o        = o.dup            offset   = o.offset            o.offset = nil -          sql = super(o, a) +          sql = super(o)            return <<-eosql                SELECT * FROM (                  SELECT raw_sql_.*, rownum raw_rnum_                  FROM (#{sql}) raw_sql_                ) -              WHERE #{visit offset, a} +              WHERE #{visit offset}            eosql          end          super        end -      def visit_Arel_Nodes_Limit o, a +      def visit_Arel_Nodes_Limit o        end -      def visit_Arel_Nodes_Offset o, a -        "raw_rnum_ > #{visit o.expr, a}" +      def visit_Arel_Nodes_Offset o +        "raw_rnum_ > #{visit o.expr}"        end -      def visit_Arel_Nodes_Except o, a -        "( #{visit o.left, a} MINUS #{visit o.right, a} )" +      def visit_Arel_Nodes_Except o +        "( #{visit o.left } MINUS #{visit o.right} )"        end -      def visit_Arel_Nodes_UpdateStatement o, a +      def visit_Arel_Nodes_UpdateStatement o          # Oracle does not allow ORDER BY/LIMIT in UPDATEs.          if o.orders.any? && o.limit.nil?            # However, there is no harm in silently eating the ORDER BY clause if no LIMIT has been provided, @@ -79,7 +79,7 @@ module Arel        ###        # Hacks for the order clauses specific to Oracle -      def order_hacks o, a +      def order_hacks o          return o if o.orders.empty?          return o unless o.cores.any? do |core|            core.projections.any? do |projection| @@ -89,9 +89,9 @@ module Arel          # Previous version with join and split broke ORDER BY clause          # if it contained functions with several arguments (separated by ',').          # -        # orders   = o.orders.map { |x| visit x, a }.join(', ').split(',') +        # orders   = o.orders.map { |x| visit x }.join(', ').split(',')          orders   = o.orders.map do |x| -          string = visit x, a +          string = visit x            if string.include?(',')              split_order_string(string)            else diff --git a/lib/arel/visitors/order_clauses.rb b/lib/arel/visitors/order_clauses.rb index b470d3f084..11dbfdad2a 100644 --- a/lib/arel/visitors/order_clauses.rb +++ b/lib/arel/visitors/order_clauses.rb @@ -3,8 +3,8 @@ module Arel      class OrderClauses < Arel::Visitors::ToSql        private -      def visit_Arel_Nodes_SelectStatement o, a -        o.orders.map { |x| visit x, a } +      def visit_Arel_Nodes_SelectStatement o +        o.orders.map { |x| visit x }        end      end    end diff --git a/lib/arel/visitors/postgresql.rb b/lib/arel/visitors/postgresql.rb index 7520a1ccc7..812710181c 100644 --- a/lib/arel/visitors/postgresql.rb +++ b/lib/arel/visitors/postgresql.rb @@ -3,18 +3,16 @@ module Arel      class PostgreSQL < Arel::Visitors::ToSql        private -      def visit_Arel_Nodes_Matches o, a -        a = o.left if Arel::Attributes::Attribute === o.left -        "#{visit o.left, a} ILIKE #{visit o.right, a}" +      def visit_Arel_Nodes_Matches o +        "#{visit o.left} ILIKE #{visit o.right}"        end -      def visit_Arel_Nodes_DoesNotMatch o, a -        a = o.left if Arel::Attributes::Attribute === o.left -        "#{visit o.left, a} NOT ILIKE #{visit o.right, a}" +      def visit_Arel_Nodes_DoesNotMatch o +        "#{visit o.left} NOT ILIKE #{visit o.right}"        end -      def visit_Arel_Nodes_DistinctOn o, a -        "DISTINCT ON ( #{visit o.expr, a} )" +      def visit_Arel_Nodes_DistinctOn o +        "DISTINCT ON ( #{visit o.expr} )"        end      end    end diff --git a/lib/arel/visitors/sqlite.rb b/lib/arel/visitors/sqlite.rb index 07a18fc2f5..2a509e95b5 100644 --- a/lib/arel/visitors/sqlite.rb +++ b/lib/arel/visitors/sqlite.rb @@ -4,10 +4,10 @@ module Arel        private        # Locks are not supported in SQLite -      def visit_Arel_Nodes_Lock o, a +      def visit_Arel_Nodes_Lock o        end -      def visit_Arel_Nodes_SelectStatement o, a +      def visit_Arel_Nodes_SelectStatement o          o.limit = Arel::Nodes::Limit.new(-1) if o.offset && !o.limit          super        end diff --git a/lib/arel/visitors/to_sql.rb b/lib/arel/visitors/to_sql.rb index 69c82e792a..0c2e649995 100644 --- a/lib/arel/visitors/to_sql.rb +++ b/lib/arel/visitors/to_sql.rb @@ -66,7 +66,7 @@ module Arel        private -      def visit_Arel_Nodes_DeleteStatement o, a +      def visit_Arel_Nodes_DeleteStatement o          [            "DELETE FROM #{visit o.relation}",            ("WHERE #{o.wheres.map { |x| visit x }.join AND}" unless o.wheres.empty?) @@ -85,7 +85,7 @@ module Arel          stmt        end -      def visit_Arel_Nodes_UpdateStatement o, a +      def visit_Arel_Nodes_UpdateStatement o          if o.orders.empty? && o.limit.nil?            wheres = o.wheres          else @@ -93,42 +93,42 @@ module Arel          end          [ -          "UPDATE #{visit o.relation, a}", -          ("SET #{o.values.map { |value| visit value, a }.join ', '}" unless o.values.empty?), -          ("WHERE #{wheres.map { |x| visit x, a }.join ' AND '}" unless wheres.empty?), +          "UPDATE #{visit o.relation}", +          ("SET #{o.values.map { |value| visit value }.join ', '}" unless o.values.empty?), +          ("WHERE #{wheres.map { |x| visit x }.join ' AND '}" unless wheres.empty?),          ].compact.join ' '        end -      def visit_Arel_Nodes_InsertStatement o, a +      def visit_Arel_Nodes_InsertStatement o          [ -          "INSERT INTO #{visit o.relation, a}", +          "INSERT INTO #{visit o.relation}",            ("(#{o.columns.map { |x|            quote_column_name x.name          }.join ', '})" unless o.columns.empty?), -          (visit o.values, a if o.values), +          (visit o.values if o.values),          ].compact.join ' '        end -      def visit_Arel_Nodes_Exists o, a -        "EXISTS (#{visit o.expressions, a})#{ -          o.alias ? " AS #{visit o.alias, a}" : ''}" +      def visit_Arel_Nodes_Exists o +        "EXISTS (#{visit o.expressions})#{ +          o.alias ? " AS #{visit o.alias}" : ''}"        end -      def visit_Arel_Nodes_Casted o, a +      def visit_Arel_Nodes_Casted o          quoted o.val, o.attribute        end -      def visit_Arel_Nodes_Quoted o, a +      def visit_Arel_Nodes_Quoted o          quoted o.expr, nil        end -      def visit_Arel_Nodes_True o, a +      def visit_Arel_Nodes_True o          "TRUE"        end -      def visit_Arel_Nodes_False o, a +      def visit_Arel_Nodes_False o          "FALSE"        end @@ -150,66 +150,66 @@ module Arel          @schema_cache.columns_hash(table)        end -      def visit_Arel_Nodes_Values o, a +      def visit_Arel_Nodes_Values o          "VALUES (#{o.expressions.zip(o.columns).map { |value, attr|            if Nodes::SqlLiteral === value -            visit value, a +            visit value            else              quote(value, attr && column_for(attr))            end          }.join ', '})"        end -      def visit_Arel_Nodes_SelectStatement o, a +      def visit_Arel_Nodes_SelectStatement o          str = ''          if o.with -          str << visit(o.with, a) +          str << visit(o.with)            str << SPACE          end -        o.cores.each { |x| str << visit_Arel_Nodes_SelectCore(x, a) } +        o.cores.each { |x| str << visit_Arel_Nodes_SelectCore(x) }          unless o.orders.empty?            str << SPACE            str << ORDER_BY            len = o.orders.length - 1            o.orders.each_with_index { |x, i| -            str << visit(x, a) +            str << visit(x)              str << COMMA unless len == i            }          end -        str << " #{visit(o.limit, a)}" if o.limit -        str << " #{visit(o.offset, a)}" if o.offset -        str << " #{visit(o.lock, a)}" if o.lock +        str << " #{visit(o.limit)}" if o.limit +        str << " #{visit(o.offset)}" if o.offset +        str << " #{visit(o.lock)}" if o.lock          str.strip!          str        end -      def visit_Arel_Nodes_SelectCore o, a +      def visit_Arel_Nodes_SelectCore o          str = "SELECT" -        str << " #{visit(o.top, a)}"            if o.top -        str << " #{visit(o.set_quantifier, a)}" if o.set_quantifier +        str << " #{visit(o.top)}"            if o.top +        str << " #{visit(o.set_quantifier)}" if o.set_quantifier          unless o.projections.empty?            str << SPACE            len = o.projections.length - 1            o.projections.each_with_index do |x, i| -            str << visit(x, a) +            str << visit(x)              str << COMMA unless len == i            end          end -        str << " FROM #{visit(o.source, a)}" if o.source && !o.source.empty? +        str << " FROM #{visit(o.source)}" if o.source && !o.source.empty?          unless o.wheres.empty?            str << WHERE            len = o.wheres.length - 1            o.wheres.each_with_index do |x, i| -            str << visit(x, a) +            str << visit(x)              str << AND unless len == i            end          end @@ -218,18 +218,18 @@ module Arel            str << GROUP_BY            len = o.groups.length - 1            o.groups.each_with_index do |x, i| -            str << visit(x, a) +            str << visit(x)              str << COMMA unless len == i            end          end -        str << " #{visit(o.having, a)}" if o.having +        str << " #{visit(o.having)}" if o.having          unless o.windows.empty?            str << WINDOW            len = o.windows.length - 1            o.windows.each_with_index do |x, i| -            str << visit(x, a) +            str << visit(x)              str << COMMA unless len == i            end          end @@ -237,244 +237,237 @@ module Arel          str        end -      def visit_Arel_Nodes_Bin o, a -        visit o.expr, a +      def visit_Arel_Nodes_Bin o +        visit o.expr        end -      def visit_Arel_Nodes_Distinct o, a +      def visit_Arel_Nodes_Distinct o          DISTINCT        end -      def visit_Arel_Nodes_DistinctOn o, a +      def visit_Arel_Nodes_DistinctOn o          raise NotImplementedError, 'DISTINCT ON not implemented for this db'        end -      def visit_Arel_Nodes_With o, a -        "WITH #{o.children.map { |x| visit x, a }.join(', ')}" +      def visit_Arel_Nodes_With o +        "WITH #{o.children.map { |x| visit x }.join(', ')}"        end -      def visit_Arel_Nodes_WithRecursive o, a -        "WITH RECURSIVE #{o.children.map { |x| visit x, a }.join(', ')}" +      def visit_Arel_Nodes_WithRecursive o +        "WITH RECURSIVE #{o.children.map { |x| visit x }.join(', ')}"        end -      def visit_Arel_Nodes_Union o, a -        "( #{visit o.left, a} UNION #{visit o.right, a} )" +      def visit_Arel_Nodes_Union o +        "( #{visit o.left} UNION #{visit o.right} )"        end -      def visit_Arel_Nodes_UnionAll o, a -        "( #{visit o.left, a} UNION ALL #{visit o.right, a} )" +      def visit_Arel_Nodes_UnionAll o +        "( #{visit o.left} UNION ALL #{visit o.right} )"        end -      def visit_Arel_Nodes_Intersect o, a -        "( #{visit o.left, a} INTERSECT #{visit o.right, a} )" +      def visit_Arel_Nodes_Intersect o +        "( #{visit o.left} INTERSECT #{visit o.right} )"        end -      def visit_Arel_Nodes_Except o, a -        "( #{visit o.left, a} EXCEPT #{visit o.right, a} )" +      def visit_Arel_Nodes_Except o +        "( #{visit o.left} EXCEPT #{visit o.right} )"        end -      def visit_Arel_Nodes_NamedWindow o, a -        "#{quote_column_name o.name} AS #{visit_Arel_Nodes_Window o, a}" +      def visit_Arel_Nodes_NamedWindow o +        "#{quote_column_name o.name} AS #{visit_Arel_Nodes_Window o}"        end -      def visit_Arel_Nodes_Window o, a +      def visit_Arel_Nodes_Window o          s = [ -          ("ORDER BY #{o.orders.map { |x| visit(x, a) }.join(', ')}" unless o.orders.empty?), -          (visit o.framing, a if o.framing) +          ("ORDER BY #{o.orders.map { |x| visit(x) }.join(', ')}" unless o.orders.empty?), +          (visit o.framing if o.framing)          ].compact.join ' '          "(#{s})"        end -      def visit_Arel_Nodes_Rows o, a +      def visit_Arel_Nodes_Rows o          if o.expr -          "ROWS #{visit o.expr, a}" +          "ROWS #{visit o.expr}"          else            "ROWS"          end        end -      def visit_Arel_Nodes_Range o, a +      def visit_Arel_Nodes_Range o          if o.expr -          "RANGE #{visit o.expr, a}" +          "RANGE #{visit o.expr}"          else            "RANGE"          end        end -      def visit_Arel_Nodes_Preceding o, a -        "#{o.expr ? visit(o.expr, a) : 'UNBOUNDED'} PRECEDING" +      def visit_Arel_Nodes_Preceding o +        "#{o.expr ? visit(o.expr) : 'UNBOUNDED'} PRECEDING"        end -      def visit_Arel_Nodes_Following o, a -        "#{o.expr ? visit(o.expr, a) : 'UNBOUNDED'} FOLLOWING" +      def visit_Arel_Nodes_Following o +        "#{o.expr ? visit(o.expr) : 'UNBOUNDED'} FOLLOWING"        end -      def visit_Arel_Nodes_CurrentRow o, a +      def visit_Arel_Nodes_CurrentRow o          "CURRENT ROW"        end -      def visit_Arel_Nodes_Over o, a +      def visit_Arel_Nodes_Over o          case o.right            when nil -            "#{visit o.left, a} OVER ()" +            "#{visit o.left} OVER ()"            when Arel::Nodes::SqlLiteral -            "#{visit o.left, a} OVER #{visit o.right, a}" +            "#{visit o.left} OVER #{visit o.right}"            when String, Symbol -            "#{visit o.left, a} OVER #{quote_column_name o.right.to_s}" +            "#{visit o.left} OVER #{quote_column_name o.right.to_s}"            else -            "#{visit o.left, a} OVER #{visit o.right, a}" +            "#{visit o.left} OVER #{visit o.right}"          end        end -      def visit_Arel_Nodes_Having o, a -        "HAVING #{visit o.expr, a}" +      def visit_Arel_Nodes_Having o +        "HAVING #{visit o.expr}"        end -      def visit_Arel_Nodes_Offset o, a -        "OFFSET #{visit o.expr, a}" +      def visit_Arel_Nodes_Offset o +        "OFFSET #{visit o.expr}"        end -      def visit_Arel_Nodes_Limit o, a -        "LIMIT #{visit o.expr, a}" +      def visit_Arel_Nodes_Limit o +        "LIMIT #{visit o.expr}"        end        # FIXME: this does nothing on most databases, but does on MSSQL -      def visit_Arel_Nodes_Top o, a +      def visit_Arel_Nodes_Top o          ""        end -      def visit_Arel_Nodes_Lock o, a -        visit o.expr, a +      def visit_Arel_Nodes_Lock o +        visit o.expr        end -      def visit_Arel_Nodes_Grouping o, a -        "(#{visit o.expr, a})" +      def visit_Arel_Nodes_Grouping o +        "(#{visit o.expr})"        end -      def visit_Arel_SelectManager o, a +      def visit_Arel_SelectManager o          "(#{o.to_sql.rstrip})"        end -      def visit_Arel_Nodes_Ascending o, a -        "#{visit o.expr, a} ASC" +      def visit_Arel_Nodes_Ascending o +        "#{visit o.expr} ASC"        end -      def visit_Arel_Nodes_Descending o, a -        "#{visit o.expr, a} DESC" +      def visit_Arel_Nodes_Descending o +        "#{visit o.expr} DESC"        end -      def visit_Arel_Nodes_Group o, a -        visit o.expr, a +      def visit_Arel_Nodes_Group o +        visit o.expr        end -      def visit_Arel_Nodes_NamedFunction o, a +      def visit_Arel_Nodes_NamedFunction o          "#{o.name}(#{o.distinct ? 'DISTINCT ' : ''}#{o.expressions.map { |x| -          visit x, a -        }.join(', ')})#{o.alias ? " AS #{visit o.alias, a}" : ''}" +          visit x +        }.join(', ')})#{o.alias ? " AS #{visit o.alias}" : ''}"        end -      def visit_Arel_Nodes_Extract o, a -        "EXTRACT(#{o.field.to_s.upcase} FROM #{visit o.expr, a})#{o.alias ? " AS #{visit o.alias, a}" : ''}" +      def visit_Arel_Nodes_Extract o +        "EXTRACT(#{o.field.to_s.upcase} FROM #{visit o.expr})#{o.alias ? " AS #{visit o.alias}" : ''}"        end -      def visit_Arel_Nodes_Count o, a +      def visit_Arel_Nodes_Count o          "COUNT(#{o.distinct ? 'DISTINCT ' : ''}#{o.expressions.map { |x| -          visit x, a -        }.join(', ')})#{o.alias ? " AS #{visit o.alias, a}" : ''}" +          visit x +        }.join(', ')})#{o.alias ? " AS #{visit o.alias}" : ''}"        end -      def visit_Arel_Nodes_Sum o, a +      def visit_Arel_Nodes_Sum o          "SUM(#{o.distinct ? 'DISTINCT ' : ''}#{o.expressions.map { |x| -          visit x, a }.join(', ')})#{o.alias ? " AS #{visit o.alias, a}" : ''}" +          visit x}.join(', ')})#{o.alias ? " AS #{visit o.alias}" : ''}"        end -      def visit_Arel_Nodes_Max o, a +      def visit_Arel_Nodes_Max o          "MAX(#{o.distinct ? 'DISTINCT ' : ''}#{o.expressions.map { |x| -          visit x, a }.join(', ')})#{o.alias ? " AS #{visit o.alias, a}" : ''}" +          visit x}.join(', ')})#{o.alias ? " AS #{visit o.alias}" : ''}"        end -      def visit_Arel_Nodes_Min o, a +      def visit_Arel_Nodes_Min o          "MIN(#{o.distinct ? 'DISTINCT ' : ''}#{o.expressions.map { |x| -          visit x, a }.join(', ')})#{o.alias ? " AS #{visit o.alias, a}" : ''}" +          visit x }.join(', ')})#{o.alias ? " AS #{visit o.alias}" : ''}"        end -      def visit_Arel_Nodes_Avg o, a +      def visit_Arel_Nodes_Avg o          "AVG(#{o.distinct ? 'DISTINCT ' : ''}#{o.expressions.map { |x| -          visit x, a }.join(', ')})#{o.alias ? " AS #{visit o.alias, a}" : ''}" +          visit x }.join(', ')})#{o.alias ? " AS #{visit o.alias}" : ''}"        end -      def visit_Arel_Nodes_TableAlias o, a -        "#{visit o.relation, a} #{quote_table_name o.name}" +      def visit_Arel_Nodes_TableAlias o +        "#{visit o.relation} #{quote_table_name o.name}"        end -      def visit_Arel_Nodes_Between o, a -        a = o.left if Arel::Attributes::Attribute === o.left -        "#{visit o.left, a} BETWEEN #{visit o.right, a}" +      def visit_Arel_Nodes_Between o +        "#{visit o.left} BETWEEN #{visit o.right}"        end -      def visit_Arel_Nodes_GreaterThanOrEqual o, a -        a = o.left if Arel::Attributes::Attribute === o.left -        "#{visit o.left, a} >= #{visit o.right, a}" +      def visit_Arel_Nodes_GreaterThanOrEqual o +        "#{visit o.left} >= #{visit o.right}"        end -      def visit_Arel_Nodes_GreaterThan o, a -        a = o.left if Arel::Attributes::Attribute === o.left -        "#{visit o.left, a} > #{visit o.right, a}" +      def visit_Arel_Nodes_GreaterThan o +        "#{visit o.left} > #{visit o.right}"        end -      def visit_Arel_Nodes_LessThanOrEqual o, a -        a = o.left if Arel::Attributes::Attribute === o.left -        "#{visit o.left, a} <= #{visit o.right, a}" +      def visit_Arel_Nodes_LessThanOrEqual o +        "#{visit o.left} <= #{visit o.right}"        end -      def visit_Arel_Nodes_LessThan o, a -        a = o.left if Arel::Attributes::Attribute === o.left -        "#{visit o.left, a} < #{visit o.right, a}" +      def visit_Arel_Nodes_LessThan o +        "#{visit o.left} < #{visit o.right}"        end -      def visit_Arel_Nodes_Matches o, a -        a = o.left if Arel::Attributes::Attribute === o.left -        "#{visit o.left, a} LIKE #{visit o.right, a}" +      def visit_Arel_Nodes_Matches o +        "#{visit o.left} LIKE #{visit o.right}"        end -      def visit_Arel_Nodes_DoesNotMatch o, a -        a = o.left if Arel::Attributes::Attribute === o.left -        "#{visit o.left, a} NOT LIKE #{visit o.right, a}" +      def visit_Arel_Nodes_DoesNotMatch o +        "#{visit o.left} NOT LIKE #{visit o.right}"        end -      def visit_Arel_Nodes_JoinSource o, a +      def visit_Arel_Nodes_JoinSource o          [ -          (visit(o.left, a) if o.left), -          o.right.map { |j| visit j, a }.join(' ') +          (visit(o.left) if o.left), +          o.right.map { |j| visit j }.join(' ')          ].compact.join ' '        end -      def visit_Arel_Nodes_StringJoin o, a -        visit o.left, a +      def visit_Arel_Nodes_StringJoin o +        visit o.left        end -      def visit_Arel_Nodes_OuterJoin o, a -        "LEFT OUTER JOIN #{visit o.left, a} #{visit o.right, a}" +      def visit_Arel_Nodes_OuterJoin o +        "LEFT OUTER JOIN #{visit o.left} #{visit o.right}"        end -      def visit_Arel_Nodes_InnerJoin o, a -        s = "INNER JOIN #{visit o.left, a}" +      def visit_Arel_Nodes_InnerJoin o +        s = "INNER JOIN #{visit o.left}"          if o.right            s << SPACE -          s << visit(o.right, a) +          s << visit(o.right)          end          s        end -      def visit_Arel_Nodes_On o, a -        "ON #{visit o.expr, a}" +      def visit_Arel_Nodes_On o +        "ON #{visit o.expr}"        end -      def visit_Arel_Nodes_Not o, a -        "NOT (#{visit o.expr, a})" +      def visit_Arel_Nodes_Not o +        "NOT (#{visit o.expr})"        end -      def visit_Arel_Table o, a +      def visit_Arel_Table o          if o.table_alias            "#{quote_table_name o.name} #{quote_table_name o.table_alias}"          else @@ -482,73 +475,69 @@ module Arel          end        end -      def visit_Arel_Nodes_In o, a +      def visit_Arel_Nodes_In o          if Array === o.right && o.right.empty?            '1=0'          else -          a = o.left if Arel::Attributes::Attribute === o.left -          "#{visit o.left, a} IN (#{visit o.right, a})" +          "#{visit o.left} IN (#{visit o.right})"          end        end -      def visit_Arel_Nodes_NotIn o, a +      def visit_Arel_Nodes_NotIn o          if Array === o.right && o.right.empty?            '1=1'          else -          a = o.left if Arel::Attributes::Attribute === o.left -          "#{visit o.left, a} NOT IN (#{visit o.right, a})" +          "#{visit o.left} NOT IN (#{visit o.right})"          end        end -      def visit_Arel_Nodes_And o, a -        o.children.map { |x| visit x, a }.join ' AND ' +      def visit_Arel_Nodes_And o +        o.children.map { |x| visit x}.join ' AND '        end -      def visit_Arel_Nodes_Or o, a -        "#{visit o.left, a} OR #{visit o.right, a}" +      def visit_Arel_Nodes_Or o +        "#{visit o.left} OR #{visit o.right}"        end -      def visit_Arel_Nodes_Assignment o, a +      def visit_Arel_Nodes_Assignment o          case o.right          when Arel::Nodes::UnqualifiedColumn, Arel::Attributes::Attribute -          "#{visit o.left, a} = #{visit o.right, a}" +          "#{visit o.left} = #{visit o.right}"          else            right = quote(o.right, column_for(o.left)) -          "#{visit o.left, a} = #{right}" +          "#{visit o.left} = #{right}"          end        end -      def visit_Arel_Nodes_Equality o, a +      def visit_Arel_Nodes_Equality o          right = o.right -        a = o.left if Arel::Attributes::Attribute === o.left          if right.nil? -          "#{visit o.left, a} IS NULL" +          "#{visit o.left} IS NULL"          else -          "#{visit o.left, a} = #{visit right, a}" +          "#{visit o.left} = #{visit right}"          end        end -      def visit_Arel_Nodes_NotEqual o, a +      def visit_Arel_Nodes_NotEqual o          right = o.right -        a = o.left if Arel::Attributes::Attribute === o.left          if right.nil? -          "#{visit o.left, a} IS NOT NULL" +          "#{visit o.left} IS NOT NULL"          else -          "#{visit o.left, a} != #{visit right, a}" +          "#{visit o.left} != #{visit right}"          end        end -      def visit_Arel_Nodes_As o, a -        "#{visit o.left, a} AS #{visit o.right, a}" +      def visit_Arel_Nodes_As o +        "#{visit o.left} AS #{visit o.right}"        end -      def visit_Arel_Nodes_UnqualifiedColumn o, a +      def visit_Arel_Nodes_UnqualifiedColumn o          "#{quote_column_name o.name}"        end -      def visit_Arel_Attributes_Attribute o, a +      def visit_Arel_Attributes_Attribute o          join_name = o.relation.table_alias || o.relation.name          "#{quote_table_name join_name}.#{quote_column_name o.name}"        end @@ -559,7 +548,7 @@ module Arel        alias :visit_Arel_Attributes_Time :visit_Arel_Attributes_Attribute        alias :visit_Arel_Attributes_Boolean :visit_Arel_Attributes_Attribute -      def literal o, a; o end +      def literal o; o end        alias :visit_Arel_Nodes_BindParam  :literal        alias :visit_Arel_Nodes_SqlLiteral :literal @@ -589,8 +578,8 @@ module Arel        alias :visit_Time                          :unsupported        alias :visit_TrueClass                     :unsupported -      def visit_Arel_Nodes_InfixOperation o, a -        "#{visit o.left, a} #{o.operator} #{visit o.right, a}" +      def visit_Arel_Nodes_InfixOperation o +        "#{visit o.left} #{o.operator} #{visit o.right}"        end        alias :visit_Arel_Nodes_Addition       :visit_Arel_Nodes_InfixOperation @@ -598,8 +587,8 @@ module Arel        alias :visit_Arel_Nodes_Multiplication :visit_Arel_Nodes_InfixOperation        alias :visit_Arel_Nodes_Division       :visit_Arel_Nodes_InfixOperation -      def visit_Array o, a -        o.map { |x| visit x, a }.join(', ') +      def visit_Array o +        o.map { |x| visit x }.join(', ')        end        def quote value, column = nil diff --git a/lib/arel/visitors/visitor.rb b/lib/arel/visitors/visitor.rb index 420549b2aa..0540445088 100644 --- a/lib/arel/visitors/visitor.rb +++ b/lib/arel/visitors/visitor.rb @@ -18,8 +18,8 @@ module Arel          DISPATCH[self.class]        end -      def visit object, attribute = nil -        send dispatch[object.class], object, attribute +      def visit object +        send dispatch[object.class], object         rescue NoMethodError => e          raise e if respond_to?(dispatch[object.class], true)          superklass = object.class.ancestors.find { |klass| diff --git a/lib/arel/visitors/where_sql.rb b/lib/arel/visitors/where_sql.rb index d59bc26cb4..acd84cd631 100644 --- a/lib/arel/visitors/where_sql.rb +++ b/lib/arel/visitors/where_sql.rb @@ -1,8 +1,8 @@  module Arel    module Visitors      class WhereSql < Arel::Visitors::ToSql -      def visit_Arel_Nodes_SelectCore o, a -        "WHERE #{o.wheres.map { |x| visit x, a }.join ' AND ' }" +      def visit_Arel_Nodes_SelectCore o +        "WHERE #{o.wheres.map { |x| visit x}.join ' AND ' }"        end      end    end  | 
