sinatra

Does anybody know the magic incantation required to get a Sinatra application that uses DataMapper up and running on Heroku's Bamboo stack? The Bamboo stack doesn't include any pre-installed system gems and no matter what combination of gems I try I keep getting this error: undefined method `auto_upgrade!' for DataMapper:Module (NoMethodError) This is what I have in my .gems file: sinatra pg datamapper do_postgres dm-postgres-adapter And these are the dependencies that are installed when I push the app to Heroku: -----> Heroku receiving push -----> Sinatra app detected -----> Installing gem

I have a Sinatra Application enclosed in Sinatra::Base and I'd like to run some code once the server has started, how should I go about doing this? Here's an example: require 'sinatra' require 'launchy' class MyServer < Sinatra::Base get '/' do "My server" end # This is the bit I'm not sure how to do after_server_running do # Launches a browser with this webapp in it upon server start Launchy.open("http://#{settings.host}:#{settings.port}/") end end Any ideas? Using the configure block is not the correct way to do this. Whenever you load the file the commands will be run. Try extending run!

I'm pretty curious about how this thing works. after require 'sinatra' then I can invoke get() in the top level scope. after digging into the source code, I found this get() structure module Sinatra class << self def get ... end end end know the class << self is open up the self object's singleton class definition and add get() inside, so it starts to make sense. But the only thing left I can't figure out is it's within module Sinstra, how could get() be invoked without using Sinatra:: resolution operation or something? It is spread out in a few places, but if you look in lib/sinatra/main.rb ,

I have a small Sinatra app which generates html fragments for me from an ERB template. How do I html_escape the output? The <%=h somestring %> helper does not exist in Sinatra. Rack::Utils includes a HTML escape method. http://www.sinatrarb.com/faq.html#escape_html require 'CGI' get '/html' do erb :view end def h(html) CGI.escapeHTML html end __END__ @@view <% File.open('my.html') do |f| %> <%=h f.read() %> <% end %> 来源： https://stackoverflow.com/questions/2123586/how-do-i-html-escape-text-data-in-a-sinatra-app

I am creating a web page that displays a table. It also has four columns at the end of each record that are text fields where the user can enter data. When the user hits the submit button at the bottom I want to save all the data in all the text fields and add it to my table. How can I save the data for all the text fields? Here is my code. <h1>Testing Table</h1> <form action="/table/" method="POST"> <table> <thead> <tr> <% event_column.each do |header| %> <th> <%= header %> </th> <% end %> </tr> </thead> <tbody> <% events.each do |event| %> <tr> <% event = event.first(14) %> <% event.each do

I'm sending a request to a Sinatra application by this: curl -X POST --header "MyHeader: 123444" http://localhost:9292/test -d "" How can I access it in the route? These don't work: headers["MyHeader"] request["MyHeader"] request.env["MyHeader"] They're all nil. Have you tried adding HTTP to the header name? So it would be request.env["HTTP_ MyHeader"] This is part of the rack spec. 来源： https://stackoverflow.com/questions/35787395/how-to-access-incoming-headers-in-sinatra

I have built a pretty simple REST service in Sinatra, on Rack. It's backed by 3 Tokyo Cabinet/Table datastores, which have connections that need to be opened and closed. I have two model classes written in straight Ruby that currently simply connect, get or put what they need, and then disconnect. Obviously, this isn't going to work long-term. I also have some Rack middleware like Warden that rely on these model classes. What's the best way to manage opening and closing the connections? Rack doesn't provide startup/shutdown hooks as I'm aware. I thought about inserting a piece of middleware