Refactored the AbstractAdapter to be a lot less scary. Cleaned up the docs and style for the OSS adapters

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2339 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 42 insertions, 0 deletions

diff --git a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb
new file mode 100644
index 0000000000..7f7cc03c7a
--- /dev/null
+++ b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb
@@ -0,0 +1,42 @@
+module ActiveRecord
+  module ConnectionAdapters # :nodoc:
+    # TODO: Document me!
+    module Quoting
+      def quote(value, column = nil)
+        case value
+          when String
+            if column && column.type == :binary
+              "'#{quote_string(column.string_to_binary(value))}'" # ' (for ruby-mode)
+            elsif column && [:integer, :float].include?(column.type)
+              value.to_s
+            else
+              "'#{quote_string(value)}'" # ' (for ruby-mode)
+            end
+          when NilClass              then "NULL"
+          when TrueClass             then (column && column.type == :boolean ? quoted_true : "1")
+          when FalseClass            then (column && column.type == :boolean ? quoted_false : "0")
+          when Float, Fixnum, Bignum then value.to_s
+          when Date                  then "'#{value.to_s}'"
+          when Time, DateTime        then "'#{value.strftime("%Y-%m-%d %H:%M:%S")}'"
+          else                            "'#{quote_string(value.to_yaml)}'"
+        end
+      end
+
+      def quote_string(s)
+        s.gsub(/\\/, '\&\&').gsub(/'/, "''") # ' (for ruby-mode)
+      end
+
+      def quote_column_name(name)
+        name
+      end
+
+      def quoted_true
+        "'t'"
+      end
+      
+      def quoted_false
+        "'f'"
+      end
+    end
+  end
+end
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