adding Populator.words to randomly generate words

CHANGELOG

@@ -1,3 +1,5 @@
+* adding Populate.words to fetch some random words
+
 *0.1.0* (August 27th, 2008)
 
 * initial release

README

@@ -56,6 +56,15 @@ Passing an range or array of values will randomly select one.
 This will create 1000 to 5000 men or women with the annual income 
 between 10,000 and 200,000.
 
+There are a few methods to generate random data as well:
+
+  Populator.words(3) # generates 3 random words separated by spaces
+  Populator.words(10..20) # generates between 10 and 20 random words
+
+If you want fancier data, try the Faker gem.
+
+  http://faker.rubyforge.org
+
 
 == Development
 

TODO

@@ -2,6 +2,7 @@ Features
 - add random_foo method to record for randomly generating content
 - randomly fill every column if no block is passed to populate
 - add "words" method to generate a number of words
+- limit number of queries per insert
 
 Possible
 - iterate through array instead of selecting at random to ensure all values are chosen
@@ -12,6 +13,7 @@ Performance
 - ruby-prof to see where the bottlenecks are
 - benchmark to find faster solutions
 - ensure instatiating the model is really that much of a performance hit.
+- don't use an insert for every nested factory - do it all at once at the end
 
 Support Environments
 - sqlite 2

lib/populator/factory.rb

@@ -2,7 +2,7 @@ module Populator
   class Factory
     def initialize(model_class, amount)
       @model_class = model_class
-      @amount = amount.kind_of?(Integer) ? amount : Populator.value_in_range(amount)
+      @amount = Populator.interpret_value(amount)
       @records = []
     end
 

lib/populator/random.rb

@@ -1,5 +1,7 @@
 module Populator
   module Random
+    WORDS = %w(alias consequatur aut perferendis sit voluptatem accusantium doloremque aperiam eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo aspernatur aut odit aut fugit sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt neque dolorem ipsum quia dolor sit amet consectetur adipisci velit sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem ut enim ad minima veniam quis nostrum exercitationem ullam corporis nemo enim ipsam voluptatem quia voluptas sit suscipit laboriosam nisi ut aliquid ex ea commodi consequatur quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae et iusto odio dignissimos ducimus qui blanditiis praesentium laudantium totam rem voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident sed ut perspiciatis unde omnis iste natus error similique sunt in culpa qui officia deserunt mollitia animi id est laborum et dolorum fuga et harum quidem rerum facilis est et expedita distinctio nam libero tempore cum soluta nobis est eligendi optio cumque nihil impedit quo porro quisquam est qui minus id quod maxime placeat facere possimus omnis voluptas assumenda est omnis dolor repellendus temporibus autem quibusdam et aut consequatur vel illum qui dolorem eum fugiat quo voluptas nulla pariatur at vero eos et accusamus officiis debitis aut rerum necessitatibus saepe eveniet ut et voluptates repudiandae sint et molestiae non recusandae itaque earum rerum hic tenetur a sapiente delectus ut aut reiciendis voluptatibus maiores doloribus asperiores repellat)
+
     def value_in_range(range)
       case range.first
       when Integer then number_in_range(range)
@@ -9,6 +11,18 @@ def value_in_range(range)
       end
     end
 
+    def words(total)
+      (1..interpret_value(total)).map { WORDS.rand }.join(' ')
+    end
+
+    def interpret_value(value)
+      case value
+      when Array then value.rand
+      when Range then value_in_range(value)
+      else value
+      end
+    end
+
     private
 
     def time_in_range(range)

lib/populator/record.rb

@@ -8,7 +8,7 @@ def initialize(model_class, id)
       @columns.each do |column|
         self.instance_eval <<-EOS
           def #{column}=(value)
-            @attributes[:#{column}] = interpret_value(value)
+            @attributes[:#{column}] = Populator.interpret_value(value)
           end
           
           def #{column}
@@ -23,15 +23,5 @@ def attribute_values
         @attributes[column.to_sym]
       end
     end
-
-    private
-
-    def interpret_value(value)
-      case value
-      when Array then value.rand
-      when Range then Populator.value_in_range(value)
-      else value
-      end
-    end
   end
 end

spec/populator/random_spec.rb

@@ -29,4 +29,13 @@
     Kernel.expects(:rand).with(5).returns(2)
     Populator.value_in_range('a'..'e').should == 'c'
   end
+
+  it "should pick 3 random words" do
+    Populator.words(3).split.should have(3).records
+  end
+
+  it "should pick a random number of random words" do
+    Populator.expects(:rand).with(5).returns(3)
+    Populator.words(10...15).split.should have(13).records
+  end
 end