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Showing posts from September, 2015

Git branch and basic commands and rails3 to rails4

Rails 3 to Rails 4 Migrations Ruby Version 2.2.2 Rails Version 4.2.3 Modification files 1)Gemfile Latest Gems related versions 2)Routes Change the match method with via get or post 3)Controllers New params creating and updating the data. i)params.require(:person).permit(:name, :age) 4)Models Active Record queries need to change i)Profile.where(“code is not null”) Profile.where.not(code: null) ii)Write the scopes in Models 5)Javascripts,stylesheets,images_paths Move the javascriptfiles and stylesheets to assets folder 6)Facebook,Linkedin,Twitter apis need to change Code changes Latest versions of the API Git Related Commands git branch List of branches for the git git chekout -b newbranc...

Gem::LoadError (Specified 'mysql2' for database adapter, but the gem is not loaded. Add `gem 'mysql2'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).?

Gem::LoadError (Specified 'mysql2' for database adapter, but the gem is not loaded. Add `gem 'mysql2'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).) In rails? 1)change the gemfile in mysql version  gem 'mysql2' 2)Change to mysql2 version  gem 'mysql2','0.3.20'