Merge pull request cequel#398 from ilanusse/drop-column

Can now drop columns

Author: pezra

cequel.gemspec

@@ -9,7 +9,7 @@ Gem::Specification.new do |s|
     'Ilya Bazylchuk', 'Dan Cardamore', 'Kei Kusakari', 'Oleh Novosad',
     'John Smart', 'Angelo Lakra', 'Olivier Lance', 'Tomohiro Nishimura',
     'Masaki Takahashi', 'G Gordon Worley III', 'Clark Bremer', 'Tamara Temple',
-    'Long On', 'Lucas Mundim', 'William Flanagan'
+    'Long On', 'Lucas Mundim', 'William Flanagan', 'Inaki Lanusse'
   ]
   s.homepage = "https://github.com/cequel/cequel"
   s.email = '[email protected]'

lib/cequel/schema/table_updater.rb

@@ -97,6 +97,15 @@ def rename_column(old_name, new_name)
         add_stmt %Q|ALTER TABLE "#{table_name}" RENAME "#{old_name}" TO "#{new_name}"|
       end
 
+      # Remove a column
+      #
+      # @param name [Symbol] the name of the column to remove
+      # @return [void]
+      #
+      def drop_column(name)
+        add_stmt %Q|ALTER TABLE "#{table_name}" DROP "#{name}"|
+      end
+
       #
       # Change one or more table storage properties
       #

lib/cequel/schema/update_table_dsl.rb

@@ -67,6 +67,12 @@ def initialize(updater)
       #
       def_delegator :@updater, :rename_column
 
+      # @!method drop_column(name)
+      #   (see Cequel::Schema::TableUpdater#drop_column)
+      #
+      def_delegator :@updater, :drop_column
+      alias_method :remove_column, :drop_column
+
       #
       # @!method change_properties(options)
       #   (see Cequel::Schema::TableUpdater#change_properties)

spec/examples/schema/table_updater_spec.rb

@@ -151,7 +151,6 @@
 
   describe '#drop_column' do
     before do
-      pending 'Support in a future Cassandra version'
       cequel.schema.alter_table(table_name) do
         drop_column :body
       end