I have a condition where, I get a hash hash = {“_id”=>”4de7140772f8be03da000018”, …..} and I want this hash as hash = {“id”=>”4de7140772f8be03da000018″, ……} P.S: I don’t know what are the keys in the hash, they are random which comes with an “_” prefix for every key and I want no underscores 12 Answers 12
I need to change my column type from date to datetime for an app I am making. I don’t care about the data as its still being developed. How can I do this? 5 Answers 5
While I realize you are supposed to use a helper inside a view, I need a helper in my controller as I’m building a JSON object to return. It goes a little like this: def xxxxx @comments = Array.new @c_comments.each do |comment| @comments << { :id => comment.id, :content => html_format(comment.content) } end render :json … Read more
I use RVM, the Ruby Version Manager to specify a Ruby version and a set of gems for each of my Rails projects. I have a .rvmrc file to automatically select a Ruby version and gemset whenever I cd into a project directory. After installing RVM 1.19.0, I get a message You are using .rvmrc, … Read more
My question is easy: <%= f.submit %> Where does the class declaration go? I’m getting errors on multiple attempts. 7 Answers 7
Locally I just interrupt (ctrl-c) and then start it again. How do I do the same thing with an app on heroku? 5 Answers 5
I get the error shown below when attempting to install the rmagick gem. I am on Snowleopard 10.6 using RVM, Ruby 1.9.2-head and Rails 3.05. Responses to similar questions recommended installing ImageMagick, which I successfully did. Other suggested installing the “libmagick9-dev library”, however, I can not figure out how to do this. I’m a new … Read more
I would like to take information from another website. Therefore (maybe) I should make a request to that website (in my case a HTTP GET request) and receive the response. How can I make this in Ruby on Rails? If it is possible, is it a correct approach to use in my controllers? 7 Answers … Read more
I created a new Rails project using rails 3.1.0.rc4 on my local machine but when I try to start the server I get: Could not find a JavaScript runtime. See here for a list of available runtimes. (ExecJS::RuntimeUnavailable) Note: This is not about Heroku. 12 Answers 12
Since the latest Rails 3 release is not auto-loading modules and classes from lib anymore, what would be the best way to load them? From github: A few changes were done in this commit: Do not autoload code in *lib* for applications (now you need to explicitly require them). This makes an application behave closer … Read more
