搜索在开发中不区分大小写，但在生产环境中敏感

Question

I have a search bar that performs a case insensitive search when running on localhost in the development environment, but when I push to Heroku and run in the production environment, the search is case sensitive. Not sure what would cause this behavior.

From app\\views\\layouts\\application.html.erb:

<form class="navbar-search pull-right">
    <input type="text" class="search-query span3" placeholder="Find Some Beers" name="search">
</form>

From app\\controllers\\ratings_controller.rb:

def search
    fff = Rating.search(params[:search])
    @ratings_by_name = fff.paginate(:order => 'name ASC', :page => params[:page], :per_page =>10)
    @ratings_by_score = fff.paginate(:order => 'score DESC', :page => params[:page], :per_page =>10)
end

From app\\models\\rating.rb:

def self.search(query)
    words = query.to_s.strip.split
    words.inject(scoped) do |combined_scope, word|
    combined_scope.where("name LIKE ?", "%#{word}%")
    end
end

Thank you!

Answer 1

Heroku uses postgres, make sure you are using postgres in development as well.

use the ILIKE postgres case insensitive version of LIKE

combined_scope.where("name ILIKE ?", "%#{word}%")

http://www.postgresql.org/docs/9.1/static/functions-matching.html

The key word ILIKE can be used instead of LIKE to make the match case-insensitive according to the active locale. This is not in the SQL standard but is a PostgreSQL extension.