Add support of additional parameters of Mandrill's send_template me…

…thod

.gitignore

@@ -1,3 +1,5 @@
 *.gem
 Gemfile.lock
 .DS_Store
+.ruby-version
+.ruby-gemset

README.md

@@ -114,6 +114,12 @@ Creating a new Mandrill Mailer is similar to a normal Rails mailer:
       * `filename:` The name of the file
       * `mimetype:` This is the mimetype of the file. Ex. png = image/png, pdf = application/pdf, txt = text/plain etc
 
+   * `:async` - Whether or not this message should be sent asynchronously
+
+   * `:ip_pool` - The name of the dedicated ip pool that should be used to send the message
+
+   * `:send_at` - When this message should be sent
+
 ## Sending an email
 
 You can send the email by using the familiar syntax:

lib/mandrill_mailer/template_mailer.rb

@@ -168,6 +168,15 @@ def self.test(mailer_method, options={})
     # Public: Other information on the message to send
     attr_accessor :message
 
+    # Public: Enable background sending mode
+    attr_accessor :async
+
+    # Public:  Name of the dedicated IP pool that should be used to send the message
+    attr_accessor :ip_pool
+
+    # Public: When message should be sent
+    attr_accessor :send_at
+
     # Public: Triggers the stored Mandril params to be sent to the Mandrill api
     #
     # text - The String to be duplicated.
@@ -181,7 +190,7 @@ def self.test(mailer_method, options={})
     # Returns the duplicated String.
     def deliver
       mandrill = Mandrill::API.new(api_key)
-      mandrill.messages.send_template(template_name, template_content, message)
+      mandrill.messages.send_template(template_name, template_content, message, async, ip_pool, send_at)
     end
 
     # Public: Build the hash needed to send to the mandrill api
@@ -198,6 +207,9 @@ def deliver
     #             :google_analytics_campaign - Google analytics campaign
     #             :inline_css - whether or not to automatically inline all CSS styles provided in the message HTML
     #             :important - whether or not this message is important
+    #             :async - whether or not this message should be sent asynchronously
+    #             :ip_pool - name of the dedicated IP pool that should be used to send the message
+    #             :send_at - when this message should be sent
     #
     # Examples
     #
@@ -227,6 +239,12 @@ def mandrill_mail(args)
       # Set the template content
       self.template_content = mandrill_args(args.delete(:template_content))
 
+      self.async = args.delete(:async)
+      self.ip_pool = args.delete(:ip_pool)
+      if args.has_key?(:send_at)
+        self.send_at = args.delete(:send_at).getutc.strftime('%Y-%m-%d %H:%M:%S')
+      end
+
       # Construct message hash
       self.message = {
         "subject" => args[:subject],
@@ -261,7 +279,10 @@ def data
         "key" => api_key,
         "template_name" => template_name,
         "template_content" => template_content,
-        "message" => message
+        "message" => message,
+        "async" => async,
+        "ip_pool" => ip_pool,
+        "send_at" => send_at
       }
     end
 

spec/template_mailer_spec.rb

@@ -129,6 +129,7 @@
     let(:attachment_file) { File.read(File.expand_path('spec/support/test_image.png')) }
     let(:attachment_filename) { 'test_image.png' }
     let(:attachment_mimetype) { 'image/png' }
+    let(:send_at) { Time.utc(2020, 1, 1, 8, 0) }
 
     let(:args) do
       {
@@ -150,7 +151,8 @@
         google_analytics_campaign: '1237423474',
         attachments: [{file: attachment_file, filename: attachment_filename, mimetype: attachment_mimetype}],
         inline_css: true,
-        important: true
+        important: true,
+        send_at: send_at
       }
     end
 
@@ -202,8 +204,15 @@
         "template_name" => subject.template_name,
         "template_content" => subject.template_content,
         "message" => subject.message,
+        "async" => subject.async,
+        "ip_pool" => subject.ip_pool,
+        "send_at" => subject.send_at
       })
     end
+
+    it 'should set send_at option' do
+      subject.send_at.should eq('2020-01-01 08:00:00')
+    end
   end
 
   describe 'url helpers in mailer' do