Finishing up the commands with delete all and destroy all

lib/mongoid/commands.rb

@@ -1,3 +1,6 @@
 require "mongoid/commands/create"
+require "mongoid/commands/delete"
+require "mongoid/commands/delete_all"
 require "mongoid/commands/destroy"
+require "mongoid/commands/destroy_all"
 require "mongoid/commands/save"

lib/mongoid/commands/delete.rb

@@ -0,0 +1,14 @@
+module Mongoid #:nodoc:
+  module Commands #:nodoc:
+    class Delete #:nodoc:
+      # Performs a delete of the supplied +Document+ without any callbacks.
+      #
+      # Options:
+      #
+      # doc: A new +Document+ that is going to be deleted.
+      def self.execute(doc)
+        doc.collection.remove(:_id => doc.id)
+      end
+    end
+  end
+end

lib/mongoid/commands/delete_all.rb

@@ -0,0 +1,20 @@
+module Mongoid #:nodoc:
+  module Commands #:nodoc:
+    class DeleteAll #:nodoc:
+      # Performs a delete of the all the +Documents+ that match the criteria
+      # supplied.
+      #
+      # Options:
+      #
+      # params: A set of conditions to find the +Documents+ by.
+      # klass: The class of the +Document+ to execute the find on.
+      #
+      # Example:
+      #
+      # <tt>DeleteAll.execute(Person, :conditions => { :field => "value" })</tt>
+      def self.execute(klass, params)
+        klass.find(:all, params).each { |doc| Delete.execute(doc) }
+      end
+    end
+  end
+end

lib/mongoid/commands/destroy.rb

@@ -1,7 +1,7 @@
 module Mongoid #:nodoc:
   module Commands #:nodoc:
     class Destroy #:nodoc:
-      # Performs a destroy of the supplied Document, with the necessary
+      # Performs a destroy of the supplied +Document+, with the necessary
       # callbacks. It then deletes the record from the collection.
       #
       # Options:

lib/mongoid/commands/destroy_all.rb

@@ -0,0 +1,20 @@
+module Mongoid #:nodoc:
+  module Commands #:nodoc:
+    class DestroyAll #:nodoc:
+      # Performs a destroy of the all the +Documents+ that match the criteria
+      # supplied. Will execute all the destroy callbacks for each +Document+.
+      #
+      # Options:
+      #
+      # params: A set of conditions to find the +Documents+ by.
+      # klass: The class of the +Document+ to execute the find on.
+      #
+      # Example:
+      #
+      # <tt>DestroyAll.execute(Person, :conditions => { :field => "value" })</tt>
+      def self.execute(klass, params)
+        klass.find(:all, params).each { |doc| Destroy.execute(doc) }
+      end
+    end
+  end
+end

lib/mongoid/commands/save.rb

@@ -1,7 +1,7 @@
 module Mongoid #:nodoc:
   module Commands #:nodoc:
     class Save #:nodoc:
-      # Performs a save of the supplied Document, handling all associated
+      # Performs a save of the supplied +Document+, handling all associated
       # callbacks and validation.
       #
       # Options:

spec/unit/mongoid/commands/delete_all_spec.rb

@@ -0,0 +1,22 @@
+require File.join(File.dirname(__FILE__), "/../../../spec_helper.rb")
+
+describe Mongoid::Commands::DeleteAll do
+
+  describe "#execute" do
+
+    before do
+      @doc = mock
+      @docs = [@doc]
+      @klass = mock
+      @conditions = { :conditions => { :title => "Sir" } }
+    end
+
+    it "destroys each document that the criteria finds" do
+      @klass.expects(:find).with(:all, @conditions).returns(@docs)
+      Mongoid::Commands::Delete.expects(:execute).with(@doc)
+      Mongoid::Commands::DeleteAll.execute(@klass, @conditions)
+    end
+
+  end
+
+end

spec/unit/mongoid/commands/delete_spec.rb

@@ -0,0 +1,19 @@
+require File.join(File.dirname(__FILE__), "/../../../spec_helper.rb")
+
+describe Mongoid::Commands::Delete do
+
+  describe "#execute" do
+
+    before do
+      @collection = mock
+      @document = stub(:collection => @collection, :id => "1")
+    end
+
+    it "removes the document from its collection" do
+      @collection.expects(:remove).with({ :_id => @document.id })
+      Mongoid::Commands::Delete.execute(@document)
+    end
+
+  end
+
+end

spec/unit/mongoid/commands/destroy_all_spec.rb

@@ -0,0 +1,22 @@
+require File.join(File.dirname(__FILE__), "/../../../spec_helper.rb")
+
+describe Mongoid::Commands::DestroyAll do
+
+  describe "#execute" do
+
+    before do
+      @doc = mock
+      @docs = [@doc]
+      @klass = mock
+      @conditions = { :conditions => { :title => "Sir" } }
+    end
+
+    it "destroys each document that the criteria finds" do
+      @klass.expects(:find).with(:all, @conditions).returns(@docs)
+      Mongoid::Commands::Destroy.expects(:execute).with(@doc)
+      Mongoid::Commands::DestroyAll.execute(@klass, @conditions)
+    end
+
+  end
+
+end