im trying to get AMF to work with Rails3.
I have succesfully installed rails3-amf-0.1.0 gem and the RocketAMF-0.2.1 gem.
In my app there is a controller with the following code:
def getRandomCards
#incoming = params[0]
#cards = Cardvo.first
respond_with(#cards) do |format|
format.amf { render :amf => #cards.to_amf}
end
end
through a call from Actionscript i would like to return some data in amf format.
further more, as mentioned in the instructions for rails3-amf i did the following.
in my production.rb under config/environment i added the line
config.rails3amf.map_params :controller => 'CardvosController', :action => 'getRandomCards'
an my amf gateway got
config.rails3amf.gateway_path = "/gateway"
The problem is:
Any call from Actionscript / Flash raises the following
(taken from the log )
Started POST "/gateway" for 192.178.168.1 at Fri Nov 19 15:13:28 +0100 2010
Processing by CardvosController#getRandomCards as AMF
Parameters: {0=>100.0}
[1m[36mSQL (0.4ms)[0m [1mSHOW TABLES[0m
[1m[35mCardvo Load (0.2ms)[0m SELECT `cardvos`.* FROM `cardvos` LIMIT 1
Completed 200 OK in 13ms (Views: 0.9ms | ActiveRecord: 0.5ms)
NoMethodError (undefined method `constructed?' for #<RocketAMF::Envelope:0x39ba868>):
The Amf file is created but the method, which is in remoting.rb from RocketAMF could not be found.
I think the error is thrown at request_parser.rb from Rails3AMF asking for constructed?
# Wrap request and response
env['rack.input'].rewind
env['rails3amf.request'] = RocketAMF::Envelope.new.populate_from_stream(env['rack.input'].read)
env['rails3amf.response'] = RocketAMF::Envelope.new
# Pass up the chain to the request processor, or whatever is layered in between
result = #app.call(env)
# Calculate length and return response
if env['rails3amf.response'].constructed?
For me it seems it is looking at the wron class for the method.
Where
NoMethodError (undefined method `constructed?' for #RocketAMF::Envelope:0x39ba868):
the essential part is
RocketAMF::Envelope:0x39ba868
which should be
RocketAMF:ANOTHER_CLASS:Envelope:0x39ba868
Am i right and where the heck is the error ?
Any help would be appreciated!
chris
Related
I'm trying to request the json pages for multiple subreddits and take the title and link from each page for a college project. here's the code in question:
require 'rufus-scheduler'
require 'json'
require 'httparty'
ENV['TZ'] = 'Europe/Dublin'
scheduler = Rufus::Scheduler::singleton
scheduler.every '12h00m', :first_at => Time.now + 10 do
array_of_subreddits = ["pics", "memes", "funny", "aww", "memes",
"birdswitharms"]
array_of_subreddits.each do |category|
sleep 10 #wait 10 seconds between each request
#response = JSON.parse(HTTParty.get("http://reddit.com/r/#{category}/.json?limit=25").body)
#response['data']['children'].each do |data|
#link = data['data']['url']
#title = data['data']['title']
#category = category
Pic.create([{:title => "#{#title}", :link => "#{#link}", :category => "#{#category}"}])
end
end
end
this works perfectly sometimes, it will run through each one and end as it should. more often than not however it will give me this message after after one or two passes:
NoMethodError (undefined method `[]' for nil:NilClass):
app/controllers/home_controller.rb:17:in `block in index'
app/controllers/home_controller.rb:9:in `each'
app/controllers/home_controller.rb:9:in `index'
Rendered /Users/conorbreen/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-4.2.6/lib/action_dispatch/middleware/templates/rescues/_source.erb (4.8ms)
Rendered /Users/conorbreen/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-4.2.6/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb (2.2ms)
Rendered /Users/conorbreen/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-4.2.6/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb (1.2ms)
Rendered /Users/conorbreen/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-4.2.6/lib/action_dispatch/middleware/templates/rescues/diagnostics.html.erb within rescues/layout (66.2ms)
Rendered /Users/conorbreen/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/web-console-2.3.0/lib/web_console/templates/_markup.html.erb (0.4ms)
Rendered /Users/conorbreen/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/web-console-2.3.0/lib/web_console/templates/_inner_console_markup.html.erb within layouts/inlined_string (0.3ms)
Rendered /Users/conorbreen/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/web-console-2.3.0/lib/web_console/templates/_prompt_box_markup.html.erb within layouts/inlined_string (0.3ms)
Rendered /Users/conorbreen/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/web-console-2.3.0/lib/web_console/templates/style.css.erb within layouts/inlined_string (0.5ms)
Rendered /Users/conorbreen/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/web-console-2.3.0/lib/web_console/templates/console.js.erb within layouts/javascript (51.6ms)
Rendered /Users/conorbreen/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/web-console-2.3.0/lib/web_console/templates/main.js.erb within layouts/javascript (0.3ms)
Rendered /Users/conorbreen/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/web-console-2.3.0/lib/web_console/templates/error_page.js.erb within layouts/javascript (0.5ms)
Rendered /Users/conorbreen/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/web-console-2.3.0/lib/web_console/templates/index.html.erb (124.8ms)
Creating client classes is a much better way to work with httparty:
class RedditClient
include HTTParty
format :json
base_uri "http://reddit.com/r/"
def self.get_category(category, *opts)
opts.reverse_merge(limit: 25)
get("/#{category}.json", opts)
end
end
This way HTTParty handles JSON parsing for us and does not attempt to an convert an empty response. Its also much easier to test separately.
However you should still check if the response was successful before trying to use it:
#response = RedditClient.get_category(category)
if #response.success?
attrs = #response['data']['children'].map do |child|
{
category: category,
link: child['data']['url'],
title: child['data']['title']
}
end
Pic.create!(attrs)
else
# log it or raise some sort of error
end
Note that you where passing an array containing a single hash to .create. You can instead pass an array of hashes and it will insert the records in a single SQL insert statement.
When you get errors like this, you should always dump the actual response so you can inspect it. The fact you got a error for a nil with code doing stuff like ['data']['children'] means Id guess you got a JSON response, but one that is missing one of the first items (e.g. ['data'] returned nil).
Dont just assume every request is successful, many things can make a HTTP fail. Its possible that you get a valid JSON response back, just not the one you are expecting, for example an error message which would have told you the problem.
Also even with a 10 second delay, you may be hitting a rate limit (never tested Reddit personally), but read the rules
Many default User-Agents (like "Python/urllib" or "Java") are drastically limited to encourage unique and descriptive user-agent strings.
This kind of errors are most common in ruby or rails. Can be handled in multiple ways. As #Stefan suggested you can use any of the bellow.
Most simply like this
response = HTTParty.get('http://reddit.com/r/#{category}/.json?limit=25')
if response.success?
response_body = response.body
# continue
end
or
response = HTTParty.get('http://reddit.com/r/#{category}/.json?limit=25')
case response.code
when 200
puts "Good!"
# Continue your parsing
when 404
puts "NOT FOUND!"
when 500...600
puts "ERROR #{response.code}"
end
or
begin
HTTParty.get('http://reddit.com/r/#{category}/.json?limit=25')
rescue HTTParty::Error
# HTTParty errors like Not found
rescue StandardError
# StandardError like Timeout
else
# continue
end
In this when I am passing phone as string in params rails api, it is being passed in the form of "\"9650661678\"". How to use escape string or how to encode it so that only string can be entered as input.
Any help will be welcomed ! Thanks in advance.
clients_controller.rb
def myzenica
mobile = params[:phone]
client = Client.where(:phone => mobile)
render :json => client
end
terminal
Started GET "/clients/myzenica?phone=%229650661678%22" for 127.0.0.1 at 2016-03-15 11:21:23 +0530
Processing by ClientsController#myzenica as */*
Parameters: {"phone"=>"\"9650661678\"", "client"=>{}}
Client Load (0.3ms) SELECT `clients`.* FROM `clients` WHERE `clients`.`phone` = '\"9650661678\"'
Completed 200 OK in 2ms (Views: 0.7ms | ActiveRecord: 1.2ms)
You can use CGI.
require 'cgi'
CGI.escape('%229650661678%22')
=> "\"9650661678\""
UPDATE:
def myzenica
require 'cgi'
mobile = CGI.escape(params[:phone])
client = Client.where(:phone => mobile)
render :json => client
end
NOTE:
In your input field which is on postman on your side. You should enter a text without double/single qoutes. Because postman field is just like input field on html tags. It will treat it all as string.
I use devise 2.2.2 with rails 3.2.11
I use devise with ajax requests
I changed the following configuration in initializers/devise.rb
config.navigational_formats = [:json, :html]
config.http_authenticatable_on_xhr = false
when I submit an empty sign in request, I expect to get a json response with errors hash, but i get a 500 instead (see below for the trace) (it works fine with sign up request)
here are my routes (nothing special)
devise_for :users
the trace:
Started POST "/users/sign_in.json" for 127.0.0.1 at 2013-01-27 13:33:45 +0100
Processing by Devise::SessionsController#create as JSON
Parameters: {"user"=>{"email"=>"", "password"=>"[FILTERED]"}}
Completed 401 Unauthorized in 1ms
Processing by Devise::SessionsController#new as JSON
Parameters: {"user"=>{"email"=>"", "password"=>"[FILTERED]"}}
Completed 500 Internal Server Error in 40ms
NoMethodError (undefined method `users_url' for #<Devise::SessionsController:0x007fe88ddd9550>):
You are probably overriding after_sign_in_path_for and have a code path in there that returns nil.
This causes devise to fall back to its default behaviour and call users_url to get the path to redirect to.
Why do I think this? Because you are having the same error I had (and lost some hair over) and also this bug report contains the github usernames of many other people who have been humbled by this particular issue.
I'm creating an application and i using inheritedresource controller like the one above:
class MyResourceController < InheritedResource::Base
respond_to :xml
action :create
end
In my cucumber test, by the way, I'm using capybara, I wrote a step definition above:
Given 'Sending a step definition' do
page.driver.post(
"/path_to_resource.xml",
<<EOF
<resource>
<attr1>value1</attr1>
<attr2>value2</attr2>
</resource>
EOF
page.status_code.should == 201
end
But when the test run and I checked the test logs I got:
Started POST "/resource.xml" for 127.0.0.1 at 2011-10-26 22:03:45 -0300
Processing by MyResourceController#create as XML
AREL (0.2ms) INSERT INTO "resource" ("created_at", "updated_at", "attr1", "attr2") VALUES ('2011-10-27 01:03:45.763663', '2011-10-27 01:03:45.763663', NULL, NULL)
Completed 201 Created in 96ms (Views: 32.5ms | ActiveRecord: 0.0ms)
Unfortunally, I'm try to figure out this since last week with no success. So my question is: Am I calling capybara post with wrong parameters or posting wrong xml to controller?
I have a form_tag that works fine using html, but when I use ajax with the remote => true I am getting this error:-
My terminal log shows:-
Started GET "/" for 127.0.0.1 at 2010-11-01 01:19:49 +0000
Processing by HomepagesController#index as HTML
Homepage Load (0.6ms) SELECT "homepages".* FROM "homepages"
Rendered homepages/index.html.erb within layouts/application (23.0ms)
Completed 200 OK in 40ms (Views: 27.3ms | ActiveRecord: 0.6ms)
Error during failsafe response: incompatible encoding regexp match (UTF-8 regexp with ASCII-8BIT string)
* then a load of cleaner.rb stuff
then:-
Started GET "/homepages?utf8=%E2%9C%93&search=hom" for 127.0.0.1 at 2010-11-01 01:19:56 +0000
Processing by HomepagesController#index as JS
Parameters: {"utf8"=>"✓", "search"=>"hom"}
Homepage Load (0.5ms) SELECT "homepages".* FROM "homepages" WHERE (section LIKE '%hom%')
Rendered homepages/index.js.erb (2.9ms)
Completed in 19ms
In my index.js.erb I have:-
$("testsearch").update("<%= escape_javascript(render(#homepages))%>");
and in my Controller I have:-
def index
#homepages = Homepage.search(params[:search])
respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => #homepages }
format.js { render :layout => false }
end
in my view I have:-
which prints #homepages using a table using <% #homepages.each do |homepage| %> which is not being updated.
Anyone have any ideas as to why I get this error.
I have cracked it by going onto an IRC chat room (irc.freenode.net RubyonRails) and a ProjectZen (human being somewhere out there in the ether) helped me to get it working.
Apparently what was happening was that I was following Ryan Bates who does many extremely good Railcast videos, but he builds on previous Railcast. Therefore in his 205 Railscast, which deals with Ajax calls, he did not mention that you must have:-
format.js in the action in the controller.
His xxxx.searchxxxxx needs to be created in the controller or model.
And that when I did :-
<%= render(#homepages)%> <!-- (in his case <%= render(#products)%>) -->
The render was looking for a partial called "_homepage" (not "homepages") (I did not even have a partial therefore I got the UTF8 to ASCII error).
And then in "_homepage" I would add my code to render the results.
What I have now done in my index.html.erb is to put <%= render(#homepages)%>, in the (div id = testsearch) in place of the code I use to render #homepages and then place that code in a partial "_homepage". Now I can use "_homepage" for the html and the Ajax call.
At the moment I have a slight problem in that it is rendering all the data in the"#homepages" as many times as the number of records. At the moment I do not know why, but at least the Ajax call is working.