TinyMCE:Plugins - spellchecker on rails using aspell

TinyMCE:Plugins - spellchecker right now available on PHP Spellchecker. You can check latest TinyMCE Editor on http://tinymce.moxiecode.com/download.php.

Today I'll try to share about how to make spellchecker work on rails environment.

What we need are :

• aspell
• json gem
• TinyMCE editor
• spellchecker plugin
  

First we need aspell installed.

We can check it using terminal. Open terminal and type aspell.

aspell

How to install aspell

sudo apt-get install aspell

How to install json gem

sudo gem install json

Now we modify tiny_mce/plugins/spellchecker/editor_plugin.js
on init funtion search

g.url=f;

then replace it with

var re = new RegExp('^(?:f|ht)tp(?:s)?\://([^/]+)', 'im');
g.url='http://' + f.match(re)[1].toString();

then search

g.rpcUrl=e.getParam("spellchecker_rpc_url",this.url+'/rpc.php');

then replace it with

g.rpcUrl=e.getParam("spellchecker_rpc_url",this.url+'/spellcheck');

preview before edited

init:function(e,f){
  var g=this,d;
  g.url=f;
  g.editor=e;
  g.rpcUrl=e.getParam("spellchecker_rpc_url",this.url+'/rpc.php');
  if(g.rpcUrl=="{backend}"){

after edited

init:function(e,f){
  var g=this,d;
  var re = new RegExp('^(?:f|ht)tp(?:s)?\://([^/]+)', 'im');
  g.url='http://' + f.match(re)[1].toString();
  g.editor=e;
  g.rpcUrl=e.getParam("spellchecker_rpc_url",this.url+'/spellcheck');

Now we must add rails script for run aspell and return the value on json back to web. On this example I add it on HomeController.

class HomeController < ApplicationController

  require 'json'

  def spellcheck
    raw = request.env['RAW_POST_DATA']
    req = JSON.parse(raw)
    lang = req["params"][0]
    if req["method"] == 'checkWords'
      text_to_check = req["params"][1].join(" ")
    else
      text_to_check = req["params"][1]
    end
    suggestions = check_spelling_new(text_to_check, req["method"], lang)
    render :json => {"id" => nil, "result" => suggestions, "error" => nil}.to_json
    return
  end

  private
  def check_spelling_new(spell_check_text, command, lang)
    json_response_values = Array.new
    spell_check_response = `echo "#{spell_check_text}" | aspell -a -l #{lang}`
    if (spell_check_response != '')
      spelling_errors = spell_check_response.split(' ').slice(1..-1)
      if (command == 'checkWords')
        i = 0
        while i < spelling_errors.length
          spelling_errors[i].strip!
          if (spelling_errors[i].to_s.index('&') == 0)
            match_data = spelling_errors[i + 1]
            json_response_values << match_data
          end
          i += 1
        end
      elsif (command == 'getSuggestions')
        arr = spell_check_response.split(':')
        suggestion_string = arr[1]
        suggestions = suggestion_string.split(',')
        for suggestion in suggestions
          suggestion.strip!
          json_response_values << suggestion
        end
      end
    end
    return json_response_values
  end

end

Last action is add this to config/routes.rb

map.connect '/spellcheck', :controller => 'home', :action => 'spellcheck'