Well, another problem with your random filename generator is that it’s possible to have collisions isn’t it? You could possibly generate a filename that was already generated. One way to go about it would be to somehow generate a hash based on unique properties of the image, like file path. An example, from the carrierwave … Read more
Args are passed down through the call stack. You just need to make sure your top-level task captures all the arguments all of the dependencies require. In your case you’ll want to put first_name and last_name on the send_letter task. Here is an example that shows named arguments defined elsewhere flowing into the dependency (even … Read more
I don’t think that default Rails validators will do the trick here, you can do this though: validate :validate_wdays def validate_wdays if !wdays.is_a?(Array) || wdays.any?{|d| !(0..6).include?(d)} errors.add(:wdays, :invalid) end end
Object#method returns a Method object giving meta-data about a given method. For example: > [].method(:length).inspect => “#<Method: Array#length>” > [].method(:max).inspect => “#<Method: Array(Enumerable)#max>” In Ruby 1.8.7 and later, you can use Method#owner to determine the class or module that defined the method. To get a list of all the methods with the name of the … Read more
Yes. According to the Ruby Docs for Hash, “Hashes enumerate their values in the order that the corresponding keys were inserted.” So you should always get the same order for a hash if it is created in the same way.
ANSWER: I’m self answering my question here. rake spec will take the SPEC_OPTS environment variable. rake spec SPEC_OPTS=”–format documentation”
You should be able to simply require it directly in recent versions of Ruby. # optional, also allows you to specify version gem ‘chronic’, ‘~>0.6’ # just require and use it require ‘chronic’ puts Chronic::VERSION # yields “0.6.7” for me If you are still on Ruby 1.8 (which does not require RubyGems by default), you … Read more
Try with debugger; in your code as this answer suggests. Your browser developer tools must be open.
The ‘Record’ form of redirect_to uses the second argument only for the response status. You’ll have to use another form of redirect_to, like the ‘String’ form. e.g.: redirect_to thing_path(@thing, :foo => params[:foo]) which will work for nested params[:foo] params like you mentioned. Or, as Drew commented below, you can use polymorphic_url (or _path): redirect_to polymorphic_path(@thing, … Read more
Looks like you are looking for ordinalize: The Ruby on Rails framework is chock full of interesting little nuggets. Ordinalize is a number extension that returns the corresponding ordinal number as a string. For instance, 1.ordinalize returns “1st” and 22.ordinalize return “22nd”. Example: place = 3 puts “You are currently in #{place.ordinalize} place.” Result: You … Read more