Make seed_fu go a bit faster: create a method for setting attributes …

…instead of hitting slow method_missing, use something slightly faster for creating the condition hash

lib/seed-fu.rb

@@ -25,10 +25,6 @@ def set_constraints(*constraints)
       end
     end
 
-    def set_attribute(name, value)
-      @data[name.to_sym] = value
-    end
-
     def plant! insert_only=false
       record = get
       return if !record.new_record? and insert_only
@@ -41,8 +37,9 @@ def plant! insert_only=false
     end
 
     def method_missing(method_name, *args) #:nodoc:
-      if (match = method_name.to_s.match(/(.*)=$/)) && args.size == 1
-        set_attribute(match[1], args.first)
+      if args.size == 1 and (match = method_name.to_s.match(/(.*)=$/))
+        self.class.class_eval "def #{method_name} arg; @data[:#{match[1]}] = arg; end"
+        send(method_name, args[0])
       else
         super
       end
@@ -61,7 +58,7 @@ def get
     end
 
     def condition_hash
-      @data.reject{|a,v| !@constraints.include?(a)}
+      @constraints.inject({}) {|a,c| a[c] = @data[c]; a }
     end
   end
 end
@@ -87,4 +84,4 @@ def self.seed_many(*constraints)
       end
     end
   end
-end
+end