1 files changed, 32 insertions, 60 deletions

diff --git a/activerecord/lib/active_record/relation/where_clause.rb b/activerecord/lib/active_record/relation/where_clause.rb
index 0b4c7b7dfa..ef2bca9155 100644
--- a/activerecord/lib/active_record/relation/where_clause.rb
+++ b/activerecord/lib/active_record/relation/where_clause.rb
@@ -3,31 +3,26 @@
 module ActiveRecord
   class Relation
     class WhereClause # :nodoc:
-      attr_reader :binds
-
       delegate :any?, :empty?, to: :predicates
 
-      def initialize(predicates, binds)
+      def initialize(predicates)
         @predicates = predicates
-        @binds = binds
       end
 
       def +(other)
         WhereClause.new(
           predicates + other.predicates,
-          binds + other.binds,
         )
       end
 
       def merge(other)
         WhereClause.new(
           predicates_unreferenced_by(other) + other.predicates,
-          non_conflicting_binds(other) + other.binds,
         )
       end
 
       def except(*columns)
-        WhereClause.new(*except_predicates_and_binds(columns))
+        WhereClause.new(except_predicates(columns))
       end
 
       def or(other)
@@ -38,7 +33,6 @@ module ActiveRecord
         else
           WhereClause.new(
             [ast.or(other.ast)],
-            binds + other.binds
           )
         end
       end
@@ -51,17 +45,10 @@ module ActiveRecord
           end
         end
 
-        binds = self.binds.map { |attr| [attr.name, attr.value] }.to_h
-
         equalities.map { |node|
           name = node.left.name.to_s
-          [name, binds.fetch(name) {
-            case node.right
-            when Array then node.right.map(&:val)
-            when Arel::Nodes::Casted, Arel::Nodes::Quoted
-              node.right.val
-            end
-          }]
+          value = extract_node_value(node.right)
+          [name, value]
         }.to_h
       end
 
@@ -71,20 +58,17 @@ module ActiveRecord
 
       def ==(other)
         other.is_a?(WhereClause) &&
-          predicates == other.predicates &&
-          binds == other.binds
+          predicates == other.predicates
       end
 
       def invert
-        WhereClause.new(inverted_predicates, binds)
+        WhereClause.new(inverted_predicates)
       end
 
       def self.empty
-        @empty ||= new([], [])
+        @empty ||= new([])
       end
 
-      # TODO Change this to private once we've dropped Ruby 2.2 support.
-      # Workaround for Ruby 2.2 "private attribute?" warning.
       protected
 
         attr_reader :predicates
@@ -108,12 +92,6 @@ module ActiveRecord
           node.respond_to?(:operator) && node.operator == :==
         end
 
-        def non_conflicting_binds(other)
-          conflicts = referenced_columns & other.referenced_columns
-          conflicts.map! { |node| node.name.to_s }
-          binds.reject { |attr| conflicts.include?(attr.name) }
-        end
-
         def inverted_predicates
           predicates.map { |node| invert_predicate(node) }
         end
@@ -133,44 +111,22 @@ module ActiveRecord
           end
         end
 
-        def except_predicates_and_binds(columns)
-          except_binds = []
-          binds_index = 0
-
-          predicates = self.predicates.reject do |node|
-            binds_contains = node.grep(Arel::Nodes::BindParam).size if node.is_a?(Arel::Nodes::Node)
-
-            except = \
-              case node
-              when Arel::Nodes::Between, Arel::Nodes::In, Arel::Nodes::NotIn, Arel::Nodes::Equality, Arel::Nodes::NotEqual, Arel::Nodes::LessThan, Arel::Nodes::LessThanOrEqual, Arel::Nodes::GreaterThan, Arel::Nodes::GreaterThanOrEqual
-                subrelation = (node.left.kind_of?(Arel::Attributes::Attribute) ? node.left : node.right)
-                columns.include?(subrelation.name.to_s)
-              end
-
-            if except && binds_contains > 0
-              (binds_index...(binds_index + binds_contains)).each do |i|
-                except_binds[i] = true
-              end
+        def except_predicates(columns)
+          self.predicates.reject do |node|
+            case node
+            when Arel::Nodes::Between, Arel::Nodes::In, Arel::Nodes::NotIn, Arel::Nodes::Equality, Arel::Nodes::NotEqual, Arel::Nodes::LessThan, Arel::Nodes::LessThanOrEqual, Arel::Nodes::GreaterThan, Arel::Nodes::GreaterThanOrEqual
+              subrelation = (node.left.kind_of?(Arel::Attributes::Attribute) ? node.left : node.right)
+              columns.include?(subrelation.name.to_s)
             end
-
-            binds_index += binds_contains if binds_contains
-
-            except
           end
-
-          binds = self.binds.reject.with_index do |_, i|
-            except_binds[i]
-          end
-
-          [predicates, binds]
         end
 
         def predicates_with_wrapped_sql_literals
           non_empty_predicates.map do |node|
-            if Arel::Nodes::Equality === node
-              node
-            else
+            case node
+            when Arel::Nodes::SqlLiteral, ::String
               wrap_sql_literal(node)
+            else node
             end
           end
         end
@@ -186,6 +142,22 @@ module ActiveRecord
           end
           Arel::Nodes::Grouping.new(node)
         end
+
+        def extract_node_value(node)
+          case node
+          when Array
+            node.map { |v| extract_node_value(v) }
+          when Arel::Nodes::Casted, Arel::Nodes::Quoted
+            node.val
+          when Arel::Nodes::BindParam
+            value = node.value
+            if value.respond_to?(:value_before_type_cast)
+              value.value_before_type_cast
+            else
+              value
+            end
+          end
+        end
     end
   end
 end