compose.html.slim

=simple_form_for @inbox_sent, url: compose_send_inboxes_path, method: :post, html: {id: 'fileupload', class: 'inbox-compose form-horizontal', multipart: true} do |f|
	.inbox-compose-btn
		=button_tag id: 'send_message', class: 'btn blue'
			i.fa.fa-check
			|  Send
		=button_tag "Cancel", id: 'discard_changes', class: 'btn'
		=button_tag "Draft", id: 'save_draft', class: 'btn'

	.inbox-form-group.mail-to
		= f.input :to, wrapper: false do
			.controls.controls-to
				=f.input_field :to, class: 'form-control'
				span.inbox-cc-bcc
					span.inbox-cc Cc
					span.inbox-bcc Bcc

	.inbox-form-group.input-cc.display-hide
		= f.input :cc, wrapper: false do
			=link_to "", "javascript:;", class: 'close'
			.controls.controls-to
				=f.input_field :cc, class: 'form-control'


	.inbox-form-group.input-bcc.display-hide
		= f.input :bcc, wrapper: false do
			=link_to "", "javascript:;", class: 'close'
			.controls.controls-to
				=f.input_field :bcc, class: 'form-control'

	.inbox-form-group
		= f.input :subject, wrapper: false do
			.controls
				=f.input_field :subject, class: 'form-control'

	.inbox-form-group
		= f.input :message_getaway_id, wrapper: false do
			.controls
				=f.select :message_getaway_id, options_for_select(MessageGetaway.to_send.map { |mg| [mg.email + ' - ' + MessageGetaway::TYPES.zip(MessageGetaway::TYPES_RUS)[mg.type_mask][1], mg.id] }), {}, {class: 'form-control'}

	.inbox-form-group
		= f.input :body, wrapper: false, label: false do
			=f.input_field :body, class: ' inbox-editor inbox-wysihtml5 form-control', rows: '12'


    =simple_fields_for :sent_attachments do |p|
    	=f.input :is_draft, as: :hidden
    	.inbox-compose-attachment
    		span.btn.green.fileinput-button
				i.fa.fa-plus
				span  Add files...
				=p.input :file, as: :file, input_html: {:multiple => true}, label: false

			table.table.table-striped.margin-top-10 role="presentation" 
				tbody.files
					=render 'file_templates'

	.inbox-compose-btn
		=button_tag id: 'send_message', class: 'btn blue'
			i.fa.fa-check
			|  Send
		=button_tag "Cancel", id: 'discard_changes', class: 'btn'
		=button_tag "Draft", id: 'save_draft', class: 'btn'

gistfile1.txt

Started POST "/inboxes/compose_send" for ::1 at 2015-10-19 11:48:03 +0200
Processing by InboxesController#compose_send as */*
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"Sh13I5GqMrEgxRCT7dLFr4AHgqQSy0RS3Jfv2ctN5oecaONqm6VCsbEZuHG5pNlv9UmHU1XsyJc3k9j7meTgIw==", "inbox_sent"=>{"to"=>"[email protected]", "cc"=>"", "bcc"=>"", "subject"=>"Test message", "message_getaway_id"=>"4", "body"=>"<pre><code>name = \"my text\"\r\nx.times do name.chop! end</code></pre><p>Here in the console:</p><pre><code>&gt;name = \"Nabucodonosor\"\r\n =&gt; \"Nabucodonosor\" \r\n&gt; 7.times do name.chop! end\r\n =&gt; 7 \r\n&gt; name\r\n =&gt; \"Nabuco\" \r\n<img src=\"http://static1.squarespace.com/static/55d3b229e4b0ee67516b60df/t/55d69f5de4b07fd45af08ee9/1440128862762/business.jpg?format=1500w\" title=\"Image: http://static1.squarespace.com/static/55d3b229e4b0ee67516b60df/t/55d69f5de4b07fd45af08ee9/1440128862762/business.jpg?format=1500w\">\r\n</code></pre>", "is_draft"=>"false"}, "_wysihtml5_mode"=>"1", "sent_attachments"=>{"file"=>[#<ActionDispatch::Http::UploadedFile:0x007fd076a6d288 @tempfile=#<Tempfile:/var/folders/c9/fzm03ldx5kg1_5y2nywmdw300000gn/T/RackMultipart20151019-41019-18xw1ib.jpg>, @original_filename="1.jpg", @content_type="image/jpeg", @headers="Content-Disposition: form-data; name=\"sent_attachments[file][]\"; filename=\"1.jpg\"\r\nContent-Type: image/jpeg\r\n">, #<ActionDispatch::Http::UploadedFile:0x007fd076a6d260 @tempfile=#<Tempfile:/var/folders/c9/fzm03ldx5kg1_5y2nywmdw300000gn/T/RackMultipart20151019-41019-169oeii.jpg>, @original_filename="2.jpg", @content_type="image/jpeg", @headers="Content-Disposition: form-data; name=\"sent_attachments[file][]\"; filename=\"2.jpg\"\r\nContent-Type: image/jpeg\r\n">]}}

inboxes_controller.rb

class InboxesController < ApplicationController
  
  ### actions
  def compose_send
    @sent_message = SentMessage.new(sent_message_params)

    @sent_message.project_id = cookies[:project_id]

    @sent_message.draft = false unless @sent_message.is_draft

    if @sent_message.is_draft
      if @sent_message.save
        if params[:sent_attachments].present?
          params[:sent_attachments]['file'].each do |a|
            @sent_attachment = @sent_message.sent_attachments.create!(:file => a, :sent_message => @sent_message)
          end
        end
        @notification = 'Message saved in draft!'
        @alert_type = 'success'
        render "compose_send", status: 200
      else
        
        @notification = 'Error during saving'
        @alert_type = 'danger'
        render "compose_send", status: 500
      end

    else
      if @sent_message.to.blank? or @sent_message.subject.blank? or @sent_message.body.blank? or @sent_message.project_id.blank? or @sent_message.message_getaway_id.blank?
        @notification = '<b>Please fill in:!</b><br>'
        @alert_type = 'danger'

        @notification += '<b>To</b><br>' if @sent_message.to.blank?
        @notification += '<b>Subject</b><br>' if @sent_message.subject.blank?
        @notification += '<b>Body</b><br>' if @sent_message.body.blank?

        render "compose_send", status: 500

      elsif @sent_message.save
        if params[:sent_attachments].present?
          params[:sent_attachments]['file'].each do |a|
            @sent_message_attachment = @sent_message.sent_attachments.create!(:file => a, :sent_message => @sent_message)
          end
        end



        @notification = 'Message sent!'
        @alert_type = 'success'

        render "compose_send", status: 200
      else
        @notification = 'Error during saving!'
        @alert_type = 'danger'
        render "compose_send", status: 500
      end

    end

  end
  
  
  private 
    def sent_message_params
      params.require(:sent_message).permit(:to, :from_email, :from_name, :cc, :bcc, :subject, :body, :message_getaway_id, :is_draft, sent_attachments_attributes: [:file])
    end

  
end

sent_message.rb

require 'message_sender'
class SentMessage < ActiveRecord::Base
  include MessageSender

  belongs_to :message_getaway
  belongs_to :project

  has_many :sent_attachments, dependent: :destroy
  accepts_nested_attributes_for :sent_attachments

  after_commit :send_current_message

  def is_draft
    @is_draft ||= false
  end

  def is_draft=(val)
    @is_draft = val == 'true'
  end

  def send_current_message
    puts 'send_message'
    if (!draft and !body.include?('/email/open/') and !body.include?('/email/t/') )
      puts 'is not draft'
      self.send_this_message #method in ext. file
    end
  end
  
  before_save :check_values

  def check_values
    if to.present? or 
      from_email.present? or 
      from_name.present? or 
      cc.present? or 
      bcc.present? or 
      subject.present? or 
      body.present? or 
      message_getaway.present? or
      inbox_sent_attachments.size > 0
        self.showed = true
    end

  end

end