Added dictionary hash extension

gabynaiman · Sep 20, 2013 · d953e40 · d953e40
1 parent 7cf8875
commit d953e40
Show file tree

Hide file tree

Showing 3 changed files with 47 additions and 1 deletion.
diff --git a/lib/core_extended/hash.rb b/lib/core_extended/hash.rb
@@ -2,6 +2,19 @@ class Hash
 
   Inflector = Struct.new :method, :arguments
 
+  def dictionary(parent_key=nil)
+    Hash.new.tap do |hash|
+      each do |k,v|
+        key = [parent_key, k].compact.join('.')
+        if v.is_a? Hash
+          hash.merge! v.dictionary(key)
+        else
+          hash[key] = v
+        end
+      end
+    end
+  end
+
   def self.inflectors
     @inflectors ||= []
   end

diff --git a/lib/core_extended/version.rb b/lib/core_extended/version.rb
@@ -1,3 +1,3 @@
 module CoreExtended
-  VERSION = '0.0.6'
+  VERSION = '0.0.7'
 end
diff --git a/spec/hash_spec.rb b/spec/hash_spec.rb
@@ -113,4 +113,37 @@
 
   end
 
+  describe 'Dictionary' do
+
+    it 'Simple hash' do
+      hash = {key_1: 1, 'key_2' => 'text', key_3: []}
+      hash.dictionary.must_equal 'key_1' => 1, 
+                                 'key_2' => 'text', 
+                                 'key_3' => []
+    end
+
+    it 'Nested hashes' do
+      hash = {
+        key_1: 1,
+        'key_2' => 'text',
+        key_3: [],
+        key_4: {
+          1 => '4.1',
+          2 => {
+            1 => '4.2.1',
+            2 => '4.2.2'
+          }
+        }
+      }
+
+      hash.dictionary.must_equal 'key_1' => 1, 
+                                 'key_2' => 'text', 
+                                 'key_3' => [], 
+                                 'key_4.1' => '4.1', 
+                                 'key_4.2.1' => '4.2.1', 
+                                 'key_4.2.2' => '4.2.2'
+    end
+
+  end
+
 end