我在使用复选框选择#<Faraday::ConnectionFailed> Connection refused - connect(2)中的项目并按下保存后收到消息users/edit.html.erb。我选择的项目位于名为amenities_list的数组中。这些项目是布尔值。在尝试保存更改后，我收到#<Faraday::ConnectionFailed>。
用户/ edit.html.erb
<div class="tab-content group">
<% amenities_list = User.amenities_list %>
<ul>
<% @user.boolean_array_from_amenities_integer.each_with_index do |amenity_available,index| %>
<% if amenity_available %>
<li class="available-amenity">
<% else %>
<li class="unavailable-amenity">
<% end %>
<%= amenities_list[index] %>
</li>
<% end %>
</ul>
</div>
users_controller.rb
def new
@user = User.new
end
def create
@user = User.new(params[:user])
@user.id = current_user.id
@user.set_amenities_from_options_list!(params[:user_amenities_indicies])
if @user.save
flash[:success] = "Thank you for signing up! A confirmation email has been sent to your inbox"
redirect_to users_path
else
render :new
end
end
def edit
@user.id = current_user.id
@user.set_amenities_from_options_list!(params[:user_amenities_indicies])
end
user.rb
def self.amenities_list
["Smoking Allowed",
"Pets Allowed",
"TV",
"Cable TV",
"Internet",
"Wireless Internet",
"Air Conditioning",
"Heating",
"Elevator in Building",
"Handicap Accessible",
"Pool",
"Kitchen",
"Free parking on premise",
"Doorman",
"Gym",
"Hot Tub",
"Indoor Fireplace",
"Buzzer/Wireless Intercom",
"Breakfast",
"Family/Kid Friendly",
"Suitable for Events",
"Washer",
"Dryer"]
end
def self.integer_from_options_list(options_list)
# convert options list given by radio buttons into one-hot integer
amenities = 0;
if options_list
options_list.each do |option|
amenities += 2 ** option.to_i
end
end
amenities
end
def self.find_with_filters(filters)
filtered_users = User
if filters[:amenities]
amenities = User.integer_from_options_list(filters[:amenities])
filtered_users = filtered_users.where("amenities & ? = ?", amenities, amenities)
end
end
def set_amenities_from_options_list!(options_list)
self.amenities = User.integer_from_options_list(options_list)
end
def boolean_array_from_amenities_integer
[].tap do |amenities_list|
User.amenities_list.length.times do |order|
amenities_list << (self.amenities & 2 ** order > 0)
end
end
end
end
gemfile.lock
GEM
remote: https://rubygems.org/
specs:
actionmailer (4.0.3)
actionpack (= 4.0.3)
mail (~> 2.5.4)
actionpack (4.0.3)
activesupport (= 4.0.3)
builder (~> 3.1.0)
erubis (~> 2.7.0)
rack (~> 1.5.2)
rack-test (~> 0.6.2)
activemodel (4.0.3)
activesupport (= 4.0.3)
builder (~> 3.1.0)
activerecord (4.0.3)
activemodel (= 4.0.3)
activerecord-deprecated_finders (~> 1.0.2)
activesupport (= 4.0.3)
arel (~> 4.0.0)
activerecord-deprecated_finders (1.0.3)
activesupport (4.0.3)
i18n (~> 0.6, >= 0.6.4)
minitest (~> 4.2)
multi_json (~> 1.3)
thread_safe (~> 0.1)
tzinfo (~> 0.3.37)
arel (4.0.2)
atomic (1.1.16)
bcrypt (3.1.7)
bcrypt-ruby (3.1.5)
bcrypt (>= 3.1.3)
bootstrap-sass (3.1.1.0)
sass (~> 3.2)
builder (3.1.4)
capybara (2.1.0)
mime-types (>= 1.16)
nokogiri (>= 1.3.3)
rack (>= 1.0.0)
rack-test (>= 0.5.4)
xpath (~> 2.0)
carrierwave (0.10.0)
activemodel (>= 3.2.0)
activesupport (>= 3.2.0)
json (>= 1.7)
mime-types (>= 1.16)
childprocess (0.5.1)
ffi (~> 1.0, >= 1.0.11)
coderay (1.1.0)
coffee-rails (4.0.1)
coffee-script (>= 2.2.0)
railties (>= 4.0.0, < 5.0)
coffee-script (2.2.0)
coffee-script-source
execjs
coffee-script-source (1.7.0)
columnize (0.3.6)
debugger (1.6.6)
columnize (>= 0.3.1)
debugger-linecache (~> 1.2.0)
debugger-ruby_core_source (~> 1.3.2)
debugger-linecache (1.2.0)
debugger-ruby_core_source (1.3.2)
diff-lcs (1.2.5)
elasticsearch (1.0.2)
elasticsearch-api (= 1.0.2)
elasticsearch-transport (= 1.0.2)
elasticsearch-api (1.0.2)
multi_json
elasticsearch-model (0.1.4)
activesupport (> 3)
elasticsearch (> 0.4)
hashie
elasticsearch-transport (1.0.2)
faraday
multi_json
erubis (2.7.0)
execjs (2.0.2)
factory_girl (4.2.0)
activesupport (>= 3.0.0)
factory_girl_rails (4.2.1)
factory_girl (~> 4.2.0)
railties (>= 3.0.0)
faker (1.3.0)
i18n (~> 0.5)
faraday (0.9.0)
multipart-post (>= 1.2, < 3)
ffi (1.9.3)
figaro (0.7.0)
bundler (~> 1.0)
rails (>= 3, < 5)
geocoder (1.1.9)
hashie (3.0.0)
hike (1.2.3)
i18n (0.6.9)
jbuilder (1.5.3)
activesupport (>= 3.0.0)
multi_json (>= 1.2.0)
jquery-rails (3.1.0)
railties (>= 3.0, < 5.0)
thor (>= 0.14, < 2.0)
jquery-ui-rails (4.2.0)
railties (>= 3.2.16)
json (1.8.1)
jwt (0.1.11)
multi_json (>= 1.5)
mail (2.5.4)
mime-types (~> 1.16)
treetop (~> 1.4.8)
method_source (0.8.2)
mime-types (1.25.1)
mini_magick (3.7.0)
subexec (~> 0.2.1)
mini_portile (0.5.2)
minitest (4.7.5)
multi_json (1.9.0)
multi_xml (0.5.5)
multipart-post (2.0.0)
nokogiri (1.6.1)
mini_portile (~> 0.5.0)
oauth (0.4.7)
oauth2 (0.9.3)
faraday (>= 0.8, < 0.10)
jwt (~> 0.1.8)
multi_json (~> 1.3)
multi_xml (~> 0.5)
rack (~> 1.2)
pg (0.17.1)
polyglot (0.3.4)
pry (0.9.12.6)
coderay (~> 1.0)
method_source (~> 0.8)
slop (~> 3.4)
pry-debugger (0.2.2)
debugger (~> 1.3)
pry (~> 0.9.10)
quiet_assets (1.0.2)
railties (>= 3.1, < 5.0)
rack (1.5.2)
rack-test (0.6.2)
rack (>= 1.0)
rails (4.0.3)
actionmailer (= 4.0.3)
actionpack (= 4.0.3)
activerecord (= 4.0.3)
activesupport (= 4.0.3)
bundler (>= 1.3.0, < 2.0)
railties (= 4.0.3)
sprockets-rails (~> 2.0.0)
rails_12factor (0.0.2)
rails_serve_static_assets
rails_stdout_logging
rails_serve_static_assets (0.0.2)
rails_stdout_logging (0.0.3)
railties (4.0.3)
actionpack (= 4.0.3)
activesupport (= 4.0.3)
rake (>= 0.8.7)
thor (>= 0.18.1, < 2.0)
rake (10.1.1)
rdoc (4.1.1)
json (~> 1.4)
rspec-core (2.13.1)
rspec-expectations (2.13.0)
diff-lcs (>= 1.1.3, < 2.0)
rspec-mocks (2.13.1)
rspec-rails (2.13.1)
actionpack (>= 3.0)
activesupport (>= 3.0)
railties (>= 3.0)
rspec-core (~> 2.13.0)
rspec-expectations (~> 2.13.0)
rspec-mocks (~> 2.13.0)
rubyzip (0.9.9)
sass (3.2.15)
sass-rails (4.0.2)
railties (>= 4.0.0, < 5.0)
sass (~> 3.2.0)
sprockets (~> 2.8, <= 2.11.0)
sprockets-rails (~> 2.0.0)
sdoc (0.4.0)
json (~> 1.8)
rdoc (~> 4.0, < 5.0)
selenium-webdriver (2.35.1)
childprocess (>= 0.2.5)
multi_json (~> 1.0)
rubyzip (< 1.0.0)
websocket (~> 1.0.4)
simple_form (3.0.1)
actionpack (>= 4.0.0, < 4.1)
activemodel (>= 4.0.0, < 4.1)
slop (3.5.0)
sorcery (0.8.5)
bcrypt-ruby (>= 3.0)
oauth (~> 0.4.4)
oauth2 (>= 0.8.0, < 1.0.0)
sprockets (2.11.0)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
sprockets-rails (2.0.1)
actionpack (>= 3.0)
activesupport (>= 3.0)
sprockets (~> 2.8)
state_machine (1.2.0)
subexec (0.2.3)
thor (0.18.1)
thread_safe (0.2.0)
atomic (>= 1.1.7, < 2)
tilt (1.4.1)
treetop (1.4.15)
polyglot
polyglot (>= 0.3.1)
tzinfo (0.3.39)
uglifier (2.5.0)
execjs (>= 0.3.0)
json (>= 1.8.0)
websocket (1.0.7)
xpath (2.0.0)
nokogiri (~> 1.3)
PLATFORMS
ruby
DEPENDENCIES
bootstrap-sass (~> 3.1.1)
capybara (= 2.1.0)
carrierwave
coffee-rails (~> 4.0.0)
elasticsearch-model
factory_girl_rails (= 4.2.1)
faker
figaro
geocoder
jbuilder (~> 1.2)
jquery-rails
jquery-ui-rails
mini_magick
pg
pry-debugger
quiet_assets
rails (= 4.0.3)
rails_12factor
rspec-rails (= 2.13.1)
sass-rails (~> 4.0.0)
sdoc
selenium-webdriver (= 2.35.1)
simple_form
sorcery
state_machine
uglifier (>= 1.3.0)
答案 0 :(得分：2)
如果后跟消息#<Faraday::ConnectionFailed> Connection refused - connect(2)
Connection refused - connect(2) for "localhost" port 9200
然后使用命令
确保弹性搜索服务正在运行 curl localhost:9200
通常，弹性搜索会在端口9200接收请求。如果没有运行，你需要从使用命令开始（在Ubuntu中）
sudo service elasticsearch start。等待几秒钟再试一次。