The original code

<%= select(“city”,”kind”, t(:place_types).map.map!.each{|key, value| [value, key]}, {:include_blank => t(:chose), :selected => @city.kind}) %>

The bad code

t(:place_types).map.map!.each{|key, value| [value, key]}, {:include_blank => t(:chose), :selected => @city.kind})

the replacement

key_values = t(:place_types).collect{|key, value| [value.to_s, key.to_s, ]}

Rails.ouch.ouch.omg!

The idea of the Searchlogic is to save you time and give flexibility.

The first time I saw this gem  I was very excited about it.

With only a few lines of code an you have the whole search done. I have start using it.

Once I want to apply it to a complicated search. The problem was that I have to write more code and “patches” in order to keep the Searchlogic working….

So my advice is – don’t use such boosters if you can apply your own solution. There will be aways a time when you want to extend your search and you will loose a lot of time search how to do it with the 3rd party solution.

Do it yourself.

I have just finished one method and I was not happy with the code. Then I put a comment on top of the method “Far from perfect….”.

Then I read the class – it was ugly.

here is the before

def validate
 return if is_email == false
 found = InternetComunicatorType.find(:first, :conditions => {
 :is_email => true,
 })

 return unless found

 if found.id != id
 errors.add(:is_email, "We have already email type")
 return
 end
end

here is the after

def validate
  if is_email
    found = InternetComunicatorType.find(:first, :conditions => {
      :is_email => true,
    })

    if found and found.id != id
      errors.add(:is_email, "We have already email type")
    end
  end
end

The result is much far readable

I writing this post for those who start using Mongo in their rails applications. I want to share my experience. First I discovered mongoid but then i saw mongo_mapper  – so I decide to go with the crowd. But! I was wrong. I there is no documentation for mongo_mapper but some blog posts arround, the examples are not aways working and you have to fight with all the code – I don’t maybe I have found some old documentation. When you dive in the code – again no documentation and not clear behaviour. Maybe it is a good solution but for me it doesn’t work. I lost 1.5 days experimenting and hoping that the things will go.

Then I give a try with mongoid. It has wonderfull documentation for starters also it seems at first glance that the code in mongoid is more readably and human friendly. It took me 2hours to port all my models to mongoid.

The guy developing mongoid seems pretty active.

last words – it is pleasure to work with mongoid – I recommend it to all.