conversations_controller.rb

class ConversationsController < ApplicationController
  before_filter :authenticate_user!

  respond_to :html, :json, :js

  def index
    @conversations = Conversation.joins(:conversation_visibilities).where(
      :conversation_visibilities => {:person_id => current_user.person.id}).paginate(
      :page => params[:page], :per_page => 15, :order => 'updated_at DESC')

    @visibilities = ConversationVisibility.where(:person_id => current_user.person.id).paginate(
      :page => params[:page], :per_page => 15, :order => 'updated_at DESC')

    @unread_counts = {}
    @visibilities.each { |v| @unread_counts[v.conversation_id] = v.unread }

    @authors = {}
    @conversations.each { |c| @authors[c.id] = c.last_author }

    @conversation = Conversation.joins(:conversation_visibilities).where(
      :conversation_visibilities => {:person_id => current_user.person.id, :conversation_id => params[:conversation_id]}).first
  end

  def create
    person_ids = Contact.where(:id => params[:contact_ids].split(',')).map! do |contact|
      contact.person_id
    end

    params[:conversation][:participant_ids] = person_ids | [current_user.person.id]
    params[:conversation][:author] = current_user.person

    if @conversation = Conversation.create(params[:conversation])
      Postzord::Dispatch.new(current_user, @conversation).post

      flash[:notice] = I18n.t('conversations.create.sent')
      if params[:profile]
        redirect_to person_path(params[:profile])
      else
        redirect_to conversations_path(:conversation_id => @conversation.id)
      end
    end
  end

  def show
    if @conversation = Conversation.joins(:conversation_visibilities).where(:id => params[:id],
                                                                            :conversation_visibilities => {:person_id => current_user.person.id}).first
      if @visibility = ConversationVisibility.where(:conversation_id => params[:id], :person_id => current_user.person.id).first
        @visibility.unread = 0
        @visibility.save
      end

      respond_with @conversation
    else
      redirect_to conversations_path
    end
  end

  def new
    all_contacts_and_ids = Contact.connection.execute(current_user.contacts.joins(:person => :profile
      ).select("contacts.id, profiles.first_name, profiles.last_name, people.diaspora_handle").to_sql).map do |r|
      person_json_from_row r
    end
    @contacts_json = all_contacts_and_ids.to_json.gsub!(/(")/, '\\"')
    @contact = current_user.contacts.find(params[:contact_id]) if params[:contact_id]
    render :layout => false
  end

  def person_json_from_row r
      r = [r["id"], r["first_name"], r["last_name"], r["diaspora_handle"]] if defined?(ActiveRecord::ConnectionAdapters::PostgreSQLAdapter) && ActiveRecord::Base.connection.is_a?(ActiveRecord::ConnectionAdapters::PostgreSQLAdapter)
      {:value => r[0],
       :name => Person.name_from_attrs(r[1], r[2], r[3]).gsub(/(")/, "'")}
  end

end