insert manager implements "insert"

3 files changed, 35 insertions, 6 deletions

diff --git a/lib/arel/insert_manager.rb b/lib/arel/insert_manager.rb
index d6c663a9c4..accabb4377 100644
--- a/lib/arel/insert_manager.rb
+++ b/lib/arel/insert_manager.rb
@@ -12,5 +12,16 @@ module Arel
 
     def columns; @head.columns end
     def values; @head.values end
+
+    def insert fields
+      return if fields.empty?
+
+      @head.relation ||= fields.first.first.relation
+
+      fields.each do |column, value|
+        @head.columns << column
+        @head.values << value
+      end
+    end
   end
 end
diff --git a/lib/arel/select_manager.rb b/lib/arel/select_manager.rb
index c9484295d8..1728311d59 100644
--- a/lib/arel/select_manager.rb
+++ b/lib/arel/select_manager.rb
@@ -26,9 +26,11 @@ module Arel
       self
     end
 
-    def insert stuff
-      viz = Visitors::Dot.new
-      puts viz.accept stuff
+    # FIXME: this method should go away
+    def insert values
+      im = InsertManager.new @engine
+      im.insert values
+      raise
     end
   end
 end
diff --git a/lib/arel/visitors/dot.rb b/lib/arel/visitors/dot.rb
index 6fd2728839..4620920484 100644
--- a/lib/arel/visitors/dot.rb
+++ b/lib/arel/visitors/dot.rb
@@ -28,6 +28,17 @@ module Arel
       end
 
       private
+      def visit_Arel_Nodes_SelectCore o
+        visit_edge o, "froms"
+        visit_edge o, "projections"
+        visit_edge o, "wheres"
+      end
+
+      def visit_Arel_Nodes_SelectStatement o
+        visit_edge o, "cores"
+        visit_edge o, "limit"
+      end
+
       def visit_Arel_Table o
         visit_edge o, "name"
       end
@@ -47,9 +58,14 @@ module Arel
       alias :visit_NilClass :visit_String
 
       def visit_Hash o
-        o.each_with_index do |(k,v),i|
-          edge("key_#{i}")   { visit k }
-          edge("value_#{i}") { visit v }
+        o.each_with_index do |pair, i|
+          edge("pair_#{i}")   { visit pair }
+        end
+      end
+
+      def visit_Array o
+        o.each_with_index do |x,i|
+          edge(i) { visit x }
         end
       end