Do not map Integer, Float and Decimal to Numeric.

lib/simple_form/components/input.rb

@@ -14,9 +14,11 @@ module SimpleForm
       map_type :hidden,   :to => :hidden_field
       map_type :select,   :to => :collection_select, :options => true, :collection => true
       map_type :radio,    :to => :collection_radio, :collection => true
-      map_type :numeric,  :to => :text_field
       map_type :string,   :to => :text_field
 
+      # Numeric types
+      map_type :integer, :float, :decimal, :to => :text_field
+
       def self.boolean_collection
         i18n_cache :boolean_collection do
           [ [I18n.t(:"simple_form.true", :default => 'Yes'), true],
@@ -54,7 +56,7 @@ module SimpleForm
           when String
             options[:label_method] ||= :to_s
             options[:value_method] ||= :to_s
-          when Numeric
+          when Integer
             options[:label_method] ||= :to_s
             options[:value_method] ||= :to_i
           else

lib/simple_form/form_builder.rb

@@ -27,12 +27,14 @@ module SimpleForm
       def default_input_type(attribute)
         column = @object.column_for_attribute(attribute)
         input_type = column.type
+
         case input_type
-          when :decimal, :integer then :numeric
-          when :timestamp then :datetime
-          when nil, :string then
+          when :timestamp
+            :datetime
+          when :string, nil
             attribute.to_s =~ /password/ ? :password : :string
-          else input_type
+          else
+            input_type
         end
       end
 

lib/simple_form/map_type.rb

@@ -6,9 +6,11 @@ module SimpleForm
       @mappings ||= {}
     end
 
-    def map_type(type, options)
+    def map_type(*types)
+      options = types.extract_options!
       raise ArgumentError, "You need to give :to as option to map_type" unless options[:to]
-      mappings[type] = Mapping.new(options[:to], options[:collection] || false, options[:options] || false)
+      mapping = Mapping.new(options[:to], options[:collection] || false, options[:options] || false)
+      types.each { |t| mappings[t] = mapping }
     end
   end
 end

test/components/input_test.rb

@@ -24,8 +24,8 @@ class InputTest < ActionView::TestCase
     assert_select 'input.string'
     with_input_for(:description, :text)
     assert_select 'textarea.text'
-    with_input_for(:age, :numeric)
-    assert_select 'input.numeric'
+    with_input_for(:age, :integer)
+    assert_select 'input.integer'
     with_input_for(:born_at, :date)
     assert_select 'select.date'
     with_input_for(:created_at, :datetime)
@@ -42,9 +42,19 @@ class InputTest < ActionView::TestCase
     assert_select 'textarea.text#user_description'
   end
 
-  test 'input should generate a numeric text field for numeric attributes ' do
-    with_input_for :age, :numeric
-    assert_select 'input.numeric#user_age'
+  test 'input should generate an integer text field for integer attributes ' do
+    with_input_for :age, :integer
+    assert_select 'input.integer#user_age'
+  end
+
+  test 'input should generate a float text field for float attributes ' do
+    with_input_for :age, :float
+    assert_select 'input.float#user_age'
+  end
+
+  test 'input should generate a decimal text field for decimal attributes ' do
+    with_input_for :age, :decimal
+    assert_select 'input.decimal#user_age'
   end
 
   test 'input should generate a checkbox by default for boolean attributes' do

test/form_builder_test.rb

@@ -23,14 +23,14 @@ class FormBuilderTest < ActionView::TestCase
     assert_select 'form input[type=checkbox]#user_active.boolean'
   end
 
-  test 'builder should use numeric text field for integer columns' do
+  test 'builder should use integer text field for integer columns' do
     with_form_for :age
-    assert_select 'form input#user_age.numeric'
+    assert_select 'form input#user_age.integer'
   end
 
-  test 'builder should generate numeric text field for numeric columns' do
+  test 'builder should generate decimal text field for decimal columns' do
     with_form_for :credit_limit
-    assert_select 'form input#user_credit_limit.numeric'
+    assert_select 'form input#user_credit_limit.decimal'
   end
 
   test 'builder should generate password fields for columns that match password' do