lib/exegesis.rb in mattly-exegesis-0.2.0 vs lib/exegesis.rb in mattly-exegesis-0.2.1

@@ -6,31 +6,48 @@
 $:.unshift File.dirname(__FILE__) unless $:.include?(File.dirname(__FILE__)) || $:.include?(File.expand_path(File.dirname(__FILE__)))
 
 require 'monkeypatches/time'
 
 module Exegesis
-  autoload :Http,         'exegesis/utils/http'
-
-  autoload :Server,       'exegesis/server'
-  autoload :Database,     'exegesis/database'
-
-  autoload :Model,        'exegesis/model'
-  autoload :Document,     'exegesis/document'
+  autoload :Http,               'exegesis/utils/http'
+                                
+  autoload :Server,             'exegesis/server'
+  autoload :Database,           'exegesis/database'
+                                
+  autoload :Model,              'exegesis/model'
+  autoload :Document,           'exegesis/document'
+  autoload :GenericDocument,    'exegesis/document/generic_document'
   
-  autoload :Designs,      'exegesis/designs'
-  autoload :Design,       'exegesis/design'
-  
+  autoload :Design,             'exegesis/design'
+  autoload :DocumentCollection, 'exegesis/document/collection'
+    
   extend self
   
   def model_classes
     @model_classes ||= {}
   end
   
-  def instantiate hash, database=nil
-    return nil if hash.nil?
-    klass = model_classes[hash['class']]
-    obj = klass.nil? ? hash : klass.new(hash)
-    obj.database = database if obj.respond_to?(:database=)
-    obj
+  # extracted from Extlib
+  #
+  # Constantize tries to find a declared constant with the name specified
+  # in the string. It raises a NameError when the name is not in CamelCase
+  # or is not initialized.
+  #
+  # @example
+  # "Module".constantize #=> Module
+  # "Class".constantize #=> Class
+  def constantize(camel_cased_word)
+    return Exegesis::GenericDocument if camel_cased_word.nil?
+    unless /\A(?:::)?([A-Z]\w*(?:::[A-Z]\w*)*)\z/ =~ camel_cased_word
+      raise NameError, "#{camel_cased_word.inspect} is not a valid constant name!"
+    end
+
+    Object.module_eval("::#{$1}", __FILE__, __LINE__)
+  end
+  
+  def instantiate(doc, database)
+    doc = constantize(doc['class']).new(doc)
+    doc.database = database if doc.respond_to?(:database=)
+    doc
   end
   
 end
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