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    I have a small web-server that I wrote with Sinatra. I want to be able to log messages to a log file. I've ... that's part of what's required. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I found a similar post here but I can't solve the problem anyway. I got this /home/fra/siti/Pensiero/db/seeds.rb ... it doesn't work. Any idea? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    If I have a bunch of elements like: <p>A paragraph <ul><li>Item 1</li><li>Apple</li><li>Orange</ ... element above would match, for instance). See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm having trouble figuring out how to log messages with Sinatra. I'm not looking to log requests, but rather ... this one as a duplicate). See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I get this error every this I run my Rails app (It cannot connect to my local Postgresql) /Users/leonardo/.rvm ... (Console) $ psql leonardo=# l See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am using will_paginate gem in my ROR project to show the records in pages. I want the next page to be loaded ... for me. How to do this? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm trying to import my production Heroku database into my development machine. My local db is PostgreSQL. First, I' ... and how to solve it? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    When using files in Ruby, what is the difference between the r+ and w+ modes? What about the a+ mode? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Perhaps this isn't actually the issue I'm experiencing, but it seems that when I "click_link" a link with ... myself) would be much appreciated. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Very new to working with rails. I have implemented a basic login system using Devise. I am trying to add a ... them and where/how to implement. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I can't get capybara working with rspec. It gives me this error: undefined method `visit' for #<RSpec::Core:: ... ideas what I should try next? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a pretty simple HABTM set of models class Tag < ActiveRecord::Base has_and_belongs_to_many :posts end class Post ... ) in the tags table? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Can anyone tell me what is the difference between build and new command on Rails? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have been installing Ruby on Rails based on the instruction from edX online class. Here is a list of ... ext/json/ext/generator/gem_make.out See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Gem::LoadError Specified 'mysql2' for database adapter, but the gem is not loaded. Add `gem 'mysql2'` to ... server but still get the error. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I've been following along Michael Hartl's excellent RoR Tutorial, but I'm using RoR 3.1. I am a newbie to ... manifest.yml. What am I missing? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am wondering if there is any relatively easy way to speed up my console load time, which is starting to ... ' end Thank you very much! See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm try to install the SQLite gem on a Fedora 9 Linux box with Ruby 1.8.6, Rails 2.2.2, gem 1.3, ... the console. How can I install this gem? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I've been trying to install this 'rubygame' gem for some time, but whenever I use the command gem install ... only shows http://rubygems.org See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    https://github.com/intridea/omniauth.git (at master) is not checked out. Please run `bundle install` ( ... install on my production server. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I learned Rails using just the rake command like rake db:migrate; however, I read that I should be using ... would be much appreciated! Thanks! See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a string: "31-02-2010" and want to check whether or not it is a valid date. What is the best way ... valid date and false if it is not. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    def foo f = Proc.new { return "return from foo from inside proc" } f.call # control leaves foo here return ... anyone know why this is the case? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm using accepts_nested_attributes_for in one of my Rails models, and I want to save the children after creating ... is invalid? Any ideas? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am following the rails tutorial videos and I can't figure out what the db:test:prepare command actually ... someone provide an explanation? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a private repository on Github that I want to use. I deploy my app to Heroku. How can I specify a ... ", :git=>"my github address" See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    In the controller spec, I can set http accept header like this: request.accept = "application/json" but in the ... this get '/my/path.json' See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I want to define an instance method Date#next which returns the next day. So I made a DateExtension ... declared in DateExtension module? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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