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  • rails: "unknown action" message when action is clearly specified

    - by john
    hi, I had hard time to figure out why I've been getting "unknown action" error message when I was do some editing: Unknown action No action responded to 11. Actions: bin, create, destroy, edit, index, new, observe_new, show, tag, update, and vote you can see that Rails did mention each action in the above list - update. And in my form, I did specify action = "update". I wonder if some friends could kindly help me with the missing links... here is the code: edit.rhtml <h1>Editing tip</h1> <% form_tag :action => 'update', :id => @tip do %> <%= render :partial => 'form' %> <p> <%= submit_tag_or_cancel 'Save Changes' %> </p> <% end %> _form.rhtml <%= error_messages_for :tip %> <p><label>Title<br/> <%= text_field :tip, :title %></label></p> <p><label>Categories<br/> <%= select_tag('categories[]', options_for_select(Category.find(:all).collect {|c| [c.name, c.id] }, @tip.category_ids), :multiple => true ) %></label></p> <p><label>Abstract:<br/> <%= text_field_with_auto_complete :tip, :abstract %></label></p> <p><label>Name: <br/> <%= text_field :tip, :name %></label></p> <p><label>Link: <br/> <%= text_field :tip, :link %></label></p> <p><label>Content<br/> <%= text_area :tip, :content, :rows => 5 %></label></p> <p><label>Tags <span>(space separated)</span><br/> <%= text_field_tag 'tags', @tip.tag_list, :size => 40 %></label></p> class TipsController < ApplicationController before_filter :authenticate, :except => %w(index show) # GET /tips # GET /tips.xml def index @tips = Tip.all respond_to do |format| format.html # index.html.erb format.xml { render :xml => @tips } end end # GET /tips/1 # GET /tips/1.xml def show @tip = Tip.find_by_permalink(params[:permalink]) respond_to do |format| format.html # show.html.erb format.xml { render :xml => @tip } end end # GET /tips/new # GET /tips/new.xml def new @tip = session[:tip_draft] || current_user.tips.build end def create #tip = current_user.tips.build(params[:tip]) #tipMail=params[:email] #if tipMail # TipMailer.deliver_email_friend(params[:email], params[:name], tip) # flash[:notice] = 'Your friend has been notified about this tip' #end @tip = current_user.tips.build(params[:tip]) @tip.categories << Category.find(params[:categories]) unless params[:categories].blank? @tip.tag_with(params[:tags]) if params[:tags] if @tip.save flash[:notice] = 'Tip was successfully created.' session[:tip_draft] = nil redirect_to :action => 'index' else render :action => 'new' end end def edit @tip = Tip.find(params[:id]) end def update @tip = Tip.find(params[:id]) respond_to do |format| if @tip.update_attributes(params[:tip]) flash[:notice] = 'Tip was successfully updated.' format.html { redirect_to(@tip) } format.xml { head :ok } else format.html { render :action => "edit" } format.xml { render :xml => @tip.errors, :status => :unprocessable_entity } end end end def destroy @tip = Tip.find(params[:id]) @tip.destroy respond_to do |format| format.html { redirect_to(tips_url) } format.xml { head :ok } end end def observe_new session[:tip_draft] = current_user.tips.build(params[:tip]) render :nothing => true end end

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  • Rails routing to XML/JSON without views gone mad

    - by John Schulze
    I have a mystifying problem. In a very simple Ruby app i have three classes: Drivers, Jobs and Vehicles. All three classes only consist of Id and Name. All three classes have the same #index and #show methods and only render in JSON or XML (this is in fact true for all their CRUD methods, they are identical in everything but name). There are no views. For example: def index @drivers= Driver.all respond_to do |format| format.js { render :json => @drivers} format.xml { render :xml => @drivers} end end def show @driver = Driver.find(params[:id]) respond_to do |format| format.js { render :json => @driver} format.xml { render :xml => @driver} end end The models are similarly minimalistic and only contain: class Driver< ActiveRecord::Base validates_presence_of :name end In routes.rb I have: map.resources :drivers map.resources :jobs map.resources :vehicles map.connect ':controller/:action/:id' map.connect ':controller/:action/:id.:format' I can perform POST/create, GET/index and PUT/update on all three classes and GET/read used to work as well until I installed the "has many polymorphs" ActiveRecord plugin and added to environment.rb: require File.join(File.dirname(__FILE__), 'boot') require 'has_many_polymorphs' require 'active_support' Now for two of the three classes I cannot do a read any more. If i go to localhost:3000/drivers they all list nicely in XML but if i go to localhost:3000/drivers/3 I get an error: Processing DriversController#show (for 127.0.0.1 at 2009-06-11 20:34:03) [GET] Parameters: {"id"=>"3"} [4;36;1mDriver Load (0.0ms)[0m [0;1mSELECT * FROM "drivers" WHERE ("drivers"."id" = 3) [0m ActionView::MissingTemplate (Missing template drivers/show.erb in view path app/views): app/controllers/drivers_controller.rb:14:in `show' ...etc This is followed a by another unexpected error: Processing ApplicationController#show (for 127.0.0.1 at 2009-06-11 21:35:52)[GET] Parameters: {"id"=>"3"} NameError (uninitialized constant ApplicationController::AreaAccessDenied): ...etc What is going on here? Why does the same code work for one class but not the other two? Why is it trying to do a #view on the ApplicationController? I found that if I create a simple HTML view for each of the three classes these work fine. To each class I add: format.html # show.html.erb With this in place, going to localhost:3000/drivers/3 renders out the item in HTML and I get no errors in the log. But if attach .xml to the URL it again fails for two of the classes (with the same error message as before) while one will output XML as expected. Even stranger, on the two failing classes, when adding .js to the URL (to trigger JSON rendering) I get the HTML output instead! Is it possible this has something to do with the "has many polymorphs" plugin? I have heard of people having routing issues after installing it. Removing "has many polymorphs" and "active support" from environment.rb (and rebooting the sever) seems to make no difference whatsoever. Yet my problems started after it was installed. I've spent a number of hours on this problem now and am starting to get a little desperate, Google turns up virtually no information which makes me suspect I must have missed something elementary. Any enlightenment or hint gratefully received! JS

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  • Is it possible to call Javascript's onsubmit event programatically on a form?

    - by hoyhoy
    In Ruby on Rails, I'm attempting to update the innerHTML of a div tag using the form_remote_tag helper. This update happens whenever an associated select tag receives an onchange event. The problem is, <select onchange="this.form.submit();">; doesn't work. Nor does document.forms[0].submit(). The only way to get the onsubmit code generated in the form_remote_tag to execute is to create a hidden submit button, and invoke the click method on the button from the select tag. Here's a working ERb partial example. <% form_remote_tag :url => product_path, :update => 'content', :method => 'get' do -%> <% content_tag :div, :id => 'content' do -%> <%= select_tag :update, options_for_select([["foo", 1], ["bar", 2]]), :onchange => "this.form.commit.click" %> <%= submit_tag 'submit_button', :style => "display: none" %> <% end %> <% end %> What I want to do is something like this, but it doesn't work. <% form_remote_tag :url => product_path, :update => 'content', :method => 'get' do -%> <% content_tag :div, :id => 'content' do -%> # the following line does not work <%= select_tag :update, options_for_select([["foo", 1], ["bar", 2]]), :onchange => "this.form.onsubmit()" %> <% end %> <% end %> So, is there any way to remove the invisible submit button for this use case? There seems to be some confusion. So, let me explain. The basic problem is that submit() doesn't call the onsubmit() code rendered into the form. The actual HTML form that Rails renders from this ERb looks like this: <form action="/products/1" method="post" onsubmit="new Ajax.Updater('content', '/products/1', {asynchronous:true, evalScripts:true, method:'get', parameters:Form.serialize(this)}); return false;"> <div style="margin:0;padding:0"> <input name="authenticity_token" type="hidden" value="4eacf78eb87e9262a0b631a8a6e417e9a5957cab" /> </div> <div id="content"> <select id="update" name="update" onchange="this.form.commit.click"> <option value="1">foo</option> <option value="2">bar</option> </select> <input name="commit" style="display: none" type="submit" value="submit_button" /> </div> </form> I want to axe the invisible submit button, but using a straight form.submit appears to not work. So, I need some way to call the form's onsubmit event code. Update: Orion Edwards solution would work if there wasn't a return(false); generated by Rails. I'm not sure which is worse though, sending a phantom click to an invisible submit button or calling eval on the getAttribute('onsubmit') call after removing the return call with a javascript string replacement!

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  • I added a validation to one of my models, now Rails is telling me to add validation to the partial. Help!

    - by marcamillion
    This is the error I am getting: ArgumentError in Home#index Showing /app/views/clients/_form.html.erb where line #6 raised: You need to supply at least one validation Extracted source (around line #6): 3: render :partial => "clients/form", 4: :locals => {:client => client} 5: -%> 6: <% client ||= Client.new 7: new_client = client.new_record? %> 8: <%= form_for(client, :html => { :class=>"ajax-form", :id => "client-ajax-form"}, :remote => true, :disable_with => (new_client ? "Adding..." : "Saving...")) do |f| %> 9: <div class="validation-error" style="display:none"></div> My client model looks like this: class Client < ActiveRecord::Base # the user model for the client belongs_to :user has_many :projects, :order => 'created_at DESC', :dependent => :destroy #The following produces the designers for a particular client. #Get them from the relations where the current user is a client. has_one :ownership, :dependent => :destroy has_one :designer, :through => :ownership validates :name, :presence => true, :length => {:minimum => 1, :maximum => 128} validates :number_of_clients def number_of_clients Authorization.current_user.clients.count <= Authorization.current_user.plan.num_of_clients end end This is how the app/views/client/_form.html.erb partial looks: <%# Edit a single client render :partial => "clients/form", :locals => {:client => client} -%> <% client ||= Client.new new_client = client.new_record? %> <%= form_for(client, :html => { :class=>"ajax-form", :id => "client-ajax-form"}, :remote => true, :disable_with => (new_client ? "Adding..." : "Saving...")) do |f| %> <div class="validation-error" style="display:none"></div> <div> <label for="client_name"><span class="icon name-icon"> </span></label> <input type="text" class="name" size="20" name="client[name]" id="client_name" value="<%= client.name %>" > <%= f.submit(new_client ? "Add" : "Save", :class=> "green awesome")%> </div> <% end %> <% content_for(:deferred_js) do %> // From the Client Form $('#client-ajax-form') .bind("ajax:success", function(evt, data, status, xhr){ console.log("Calling Step View"); compv.updateStepView('client', xhr); }); <% end %> How do I fix that error ?

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  • What's the best way to refactor this Rails controller?

    - by Robert DiNicolas
    I'd like some advice on how to best refactor this controller. The controller builds a page of zones and modules. Page has_many zones, zone has_many modules. So zones are just a cluster of modules wrapped in a container. The problem I'm having is that some modules may have some specific queries that I don't want executed on every page, so I've had to add conditions. The conditions just test if the module is on the page, if it is the query is executed. One of the problems with this is if I add a hundred special module queries, the controller has to iterate through each one. I think I would like to see these module condition moved out of the controller as well as all the additional custom actions. I can keep everything in this one controller, but I plan to have many apps using this controller so it could get messy. class PagesController < ApplicationController # GET /pages/1 # GET /pages/1.xml # Show is the main page rendering action, page routes are aliased in routes.rb def show #-+-+-+-+-Core Page Queries-+-+-+-+- @page = Page.find(params[:id]) @zones = @page.zones.find(:all, :order => 'zones.list_order ASC') @mods = @page.mods.find(:all) @columns = Page.columns # restful params to influence page rendering, see routes.rb @fragment = params[:fragment] # render single module @cluster = params[:cluster] # render single zone @head = params[:head] # render html, body and head #-+-+-+-+-Page Level Json Conversions-+-+-+-+- @metas = @page.metas ? ActiveSupport::JSON.decode(@page.metas) : nil @javascripts = @page.javascripts ? ActiveSupport::JSON.decode(@page.javascripts) : nil #-+-+-+-+-Module Specific Queries-+-+-+-+- # would like to refactor this process @mods.each do |mod| # Reps Module Custom Queries if mod.name == "reps" @reps = User.find(:all, :joins => :roles, :conditions => { :roles => { :name => 'rep' } }) end # Listing-poc Module Custom Queries if mod.name == "listing-poc" limit = params[:limit].to_i < 1 ? 10 : params[:limit] PropertyEntry.update_from_listing(mod.service_url) @properties = PropertyEntry.all(:limit => limit, :order => "city desc") end # Talents-index Module Custom Queries if mod.name == "talents-index" @talent = params[:type] @reps = User.find(:all, :joins => :talents, :conditions => { :talents => { :name => @talent } }) end end respond_to do |format| format.html # show.html.erb format.xml { render :xml => @page.to_xml( :include => { :zones => { :include => :mods } } ) } format.json { render :json => @page.to_json } format.css # show.css.erb, CSS dependency manager template end end # for property listing ajax request def update_properties limit = params[:limit].to_i < 1 ? 10 : params[:limit] offset = params[:offset] @properties = PropertyEntry.all(:limit => limit, :offset => offset, :order => "city desc") #render :nothing => true end end So imagine a site with a hundred modules and scores of additional controller actions. I think most would agree that it would be much cleaner if I could move that code out and refactor it to behave more like a configuration.

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  • How to select table column names in a view and pass to controller in rails?

    - by zachd1_618
    So I am new to Rails, and OO programming in general. I have some grasp of the MVC architecture. My goal is to make a (nearly) completely dynamic plug-and-play plotting web server. I am fairly confused with params, forms, and select helpers. What I want to do is use Rails drop downs to basically pass parameters as strings to my controller, which will use the params to select certain column data from my database and plot it dynamically. I have the latter part of the task working, but I can't seem to pass values from my view to controller. For simplicity's sake, say my database schema looks like this: --------------Plot--------------- |____x____|____y1____|____y2____| | 1 | 1 | 1 | | 2 | 2 | 4 | | 3 | 3 | 9 | | 4 | 4 | 16 | | 5 | 5 | 25 | ... and in my Model, I have dynamic selector scopes that will let me select just certain columns of data: in Plot.rb class Plot < ActiveRecord::Base scope :select_var, lambda {|varname| select(varname)} scope :between_x, lambda {|x1,x2| where("x BETWEEN ? and ?","#{x1}","#{x2}")} So this way, I can call: irb>>@p1 = Plot.select_var(['x','y1']).between_x(1,3) and get in return a class where @p1.x and @p1.y1 are my only attributes, only for values between x=1 to x=4, which I dynamically plot. I want to start off in a view (plot/index), where I can dynamically select which variable names (table column names), and which rows from the database to fetch and plot. The problem is, most select helpers don't seem to work with columns in the database, only rows. So to select columns, I first get an array of column names that exist in my database with a function I wrote. Plots Controller def index d=Plot.first @tags = d.list_vars end So @tags = ['x','y1','y2'] Then in my plot/index.html.erb I try to use a drop down to select wich variables I send back to the controller. index.html.erb <%= select_tag( :variable, options_for_select(@plots.first.list_vars,:name,:multiple=>:true) )%> <%= button_to 'Plot now!', :controller =>"plots/plot_vars", :variable => params[:variable]%> Finally, in the controller again Plots controller ... def plot_vars @plot_data=Plot.select_vars([params[:variable]]) end The problem is everytime I try this (or one of a hundred variations thereof), the params[:variable] is nill. How can I use a drop down to pass a parameter with string variable names to the controller? Sorry its so long, I have been struggling with this for about a month now. :-( I think my biggest problem is that this setup doesn't really match the Rails architecture. I don't have "users" and "articles" as individual entities. I really have a data structure, not a data object. Trying to work with the structure in terms of data object speak is not necessarily the easiest thing to do I think. For background: My actual database has about 250 columns and a couple million rows, and they get changed and modified from time to time. I know I can make the database smarter, but its not worth it on my end. I work at a scientific institute where there are a ton of projects with databases just like this. Each one has a web developer that spends months setting up a web interface and their own janky plotting setups. I want to make this completely dynamic, as a plug-and-play solution so all you have to do is specify your database connection, and this rails setup will automatically show and plot which data you want in it. I am more of a sequential programmer and number cruncher, as are many people here. I think this project could be very helpful in the end, but its difficult to figure out for me right now.

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  • How to render a partial and and a javascript file in the same time in Rails ?

    - by master2004
    Hi. My main intention is to keep the functionality independent form the Javascript, to have it gracefully degradable. Maybe I am trying to go where I want the wrong way but the main idea is: there are some jQuery UI tabs and when the user presses a link, a new tab is added corresponding to that action $("#tabs").tabs('add', "/groups", "My Groups"); the controller identifies the AJAX request and renders only the partial for that tab if request.xhr? render :partial => "index_tab" end at this point I would like the Javascript file associated with the /groups/index action to be executed as well, meaning the index.js.erb file in the groups folder. because of the "only one render" rule I couldn't think of a nice way to do it and I am in need of a fast solution. Thank you for any suggestions you might have.

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  • Rails Message This User Button

    - by bob
    Hello, I am using this http://github.com/professionalnerd/simple-private-messages plugin in rails and I am on a user page show.html.erb - User and I want to put a button there that, when clicked, goes to the current user's inbox and populates the field call "send to" with the "user" name. How do I send that data along when the button is clicked? <%= link_to image_tag('send_message_button.jpg', :title => 'send #{user} a message', :alt => 'send #{user} a message'), new_user_message_path(current_user), :class=>'messageuser' %> This goes to the current_user's inbox. I want to send the "params[:user_id]" variable along with it so that I can then fill out the "send to" textbox in the inbox page with it. How do I send that params variable along with this button?

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  • Ruby on Rails simple_navigation Gem

    - by Paul
    I'm using the simple_navigation gem with RoR 2.3.5 It all seems to work correctly, I followed the info in the RDoc (seen here http://rdoc.info/projects/mexpolk/simple_navigation) However, when I actually render out the simple_navigation menu on my main application.html.erb file it escapes all of the html in it (multiple escapes actually). I end up with junk like this which in a browser ends up with all kinds of disjointed text and ["\ things everywhere. <ul class="simple_navigation" depth="0" id="simple_navigation_default"> ["<li class=\"menu\" drop_down=\"true\" id=\"simple_navigation_default_menus_home\"><a href=\"/home\">Wellcome</a><ul depth=\"1\" id=\"simple_navigation_default_menus_home_menus\"> [\"<li class=\\\"menu\\\" drop_down=\\\"false\\\" id=\\\"simple_navigation_default_menus_home_menus_settings\\\"><a href=\\\"/home/settings\\\">Appliction Settings</a></li>\"] </ul> </li>"] What am I doing wrong? Is there a way to tell Ruby on rails to NOT escape html?

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  • access following entry in a form_for, and switch a value between two entry of my DB

    - by Sylario
    I am displaying a list of articles. I sort my articles by the param order, and i want, when displaying the list of article to be able to "move" them up or down. In php i do everything with a for browsing my array of results and inside the for i go to the next index to find where i am in the list, and with wich other article i must swap my order. I can do that in the script displaying the edit page and then in the script executing the update. In rails i have only my form_for in my erb. How can i : Know if my entry is the last one or the first one(display only V for the first, ^ for the last and V^ for the rest) Update my DB entry by switching the order value between the article that i want to lower, raise, and the one he is taking the place.

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  • gmaps4rails version 2 build method

    - by BrainLikeADullPencil
    I installed gmaps4rails for my Rails app, ran the generator, and required the two files like this in my application.js file, along with underscore.js //= require underscore //= require gmaps4rails/gmaps4rails.base //= require gmaps4rails/gmaps4rails.googlemaps adding, as instructed on github https://github.com/apneadiving/Google-Maps-for-Rails, these dependencies in layout.html.erb When I tried to create the demo map from the github page with this code, I got an error that the object doesn't have a build method. Uncaught TypeError: Object # has no method 'build' handler = Gmaps.build('Google'); handler.buildMap({ provider: {}, internal: {id: 'map'}}, function(){ markers = handler.addMarkers([ { "lat": 0, "lng": 0, "picture": { "url": "https://addons.cdn.mozilla.net/img/uploads/addon_icons/13/13028-64.png", "width": 36, "height": 36 }, "infowindow": "hello!" } ]); handler.bounds.extendWith(markers); handler.fitMapToBounds(); }); Indeed, when I look inside the base file that I require in the manifest file there is no build method for that object. How does one create a map in the new version for gmaps4rails?

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  • Nested attributes in the index view?

    - by user283179
    How would I show one of many nested objects in the index view class Album < ActiveRecord::Base has_many: photos accepts_nested_attributes_for :photos, :reject_if => proc { |a| a.all? { |k, v| v.blank?} } has_one: cover accepts_nested_attributes_for :cover end class Album Controller < ApplicationController layout "mini" def index @albums = Album.find(:all, :include => [:cover,]).reverse respond_to do |format| format.html # index.html.erb format.xml { render :xml => @albums } end end This is what I have so fare. I just want to show a cover for each album. Any info on this would be a massive help!!

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  • Determining URLs updated via a series of commit logs

    - by adamrubin
    I'm working on a project where I programmatically need to know when a URL has been changed by a developer, post or during deploy. The obvious answer may be to curl the URL one day, save the output, then curl and in x days then do a diff. That won't work in my case, as I'm only looking for changes the developer mande. If the site is a blog, new comments, user submitted photos, etc would make that curl diff useless. RoR example, using github. Let's assume I have access to the entire repository and all commit logs between iterations. Is there a way I could see that "/views/people/show.html.erb" was commited, then backtrack from there (maybe by inspecting routes.rb), to come up with the URL I can then hit via a browser?

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  • Rails accepts_nested_attributes_for and build_attribute with polymorphic relationships

    - by SooDesuNe
    The core of this question is where build_attribute is required in a model with nested attribuites I'm working with a few models that are setup like: class Person < ActiveRecord::Base has_one :contact accepts_nested_attributes_for :contact, :allow_destroy=> true end class Contact < ActiveRecord::Base belongs_to :person has_one :address, :as=>:addressable accepts_nested_attributes_for :address, :allow_destroy=> true end class Address < ActiveRecord::Base belongs_to :addressable, :polymorphic=>true end I have to define the new method of people_controller like: def new @person = Person.new @person.build_contact @person.contact.build_address #!not very good encapsulation respond_to do |format| format.html # new.html.erb format.xml { render :xml => @person } end end Without @person.contact.build_address the address relationship on contact is NIL. I don't like having to build_address in people_controller. That should be handled by Contact. Where do I define this in Contact since the contacts_controller is not involved here?

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  • recursive html2haml

    - by yaya3
    I have many html files in nested directories which I need to convert to Haml templates I've modified the following bash script from here - http://terrbear.org/?p=277 to modify html files and not erb but I still need to modify it to be recursive ... #!/bin/bash if [ -z "$1" ]; then wdir="." else wdir=$1 fi for f in $( ls $wdir/*.html ); do out="${f%}.haml" if [ -e $out ]; then echo "skipping $out; already exists" else echo "hamlifying $f" html2haml $f > $out fi done I've named this script h2h.sh and tried going for commands like h2h.sh `find . -type d` I'm getting no output in the terminal Thanks

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  • Rails prettyPhoto does not show photo with jquery (instead redirect to photo page)

    - by dare
    i do all instruction for use prettyPhoto in https://github.com/hiq5/prettyphoto-rails. and i do this to show a single photo( not gallery ) =link_to image_tag(photo.photo_url(:thumb).to_s, :alt => photo.name ,:class => "img-polaroid"), photo.photo_url, :rel => 'prettyPhoto' but still redirect to photo url and show photo, and doesn't use jQuery to show it on the current page. i check it with chrome development tools, there isn't any error. i use haml to generate views (instead erb), and carrierwave to upload photos. by the way I use twitter bootstrap. any help is appreciated.

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  • help with rails render action vs routing

    - by Stacia
    I was using some image cropping example that I found online and now I got confused. There is actually no "crop" method in my controller. Instead (following the guide) I put a render :action => 'cropping', :layout=> "admin" In my create method. That renders a page the view called cropping.html.erb . It works fine but I have no idea how to link or render that page otherwise, like if I wanted to hit a URL directly or press a button to recrop an image. Should I actually create a crop method in my controller and hook it up via routing if I want to be able to do this, or is there a way within my view to link to the same place that renders the cropping action? Sorry about the confusion :) It doesn't help that the first version of the tutorial did have a cropping method and he removed it!! Any explanation on why one method is better over the other would be great. Thanks!!

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  • Select Box not filling properly in rails

    - by CaptnCraig
    I am creating a select box for a form using this in _form.html.erb <%= f.select(:category_id,options_for_select(@cats)) %> @cats is an array created in my controller like this: @cats = [] categories.each do |c| @cats.push([c.full_name,c.id]) end The select box is properly filled, and the selected foreign key is even properly saved to the database. The problem is, when I come back in my edit action, the select box is moved back to the first item in the list, not the one corresponding to category_id. Reading the documentation it seems like this should just magically work. How do I get it to select the proper value?

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  • Difficulty screen scraping http://www.momondo.com using nokogiri

    - by Khai Kiong
    I have some difficulty to extract the total price (css selector = '.total') from the flight result. http://www.momondo.com/multicity/?Search=true&TripType=oneway&SegNo=1&SO0=KUL&SD0=KBR&SDP0=31-12-2012&AD=2&CA=0,0&DO=false&NA=false#Search=true&TripType=oneway&SegNo=1&SO0=KUL&SD0=KBR&SDP0=31-12-2012&AD=2&CA=0,0&DO=false&NA=false I get the error "undefined method `text' for nil:NilClass nokogiri ". My code desc "Fetch product prices" task :fetch_details => :environment do require 'nokogiri' require 'open-uri' include ERB::Util OneWayFlight.find_all_by_money(nil).each do |flight| url = "http://www.momondo.com/multicity/Search=true&TripType=oneway&SegNo=1&SO0=KUL&SD0=KBR&SDP0=31-12-2012&AD=2&CA=0,0&DO=false&NA=false#Search=true&TripType=oneway&SegNo=1&SO0=KUL&SD0=KBR&SDP0=31-12-2012&AD=2&CA=0,0&DO=false&NA=false" doc = Nokogiri::HTML(open(url)) price = doc.at_css(".total").text[/[0-9\.]+/] flight.update_attribute(:price, price) end end

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  • How do I combine two methods into one json formatted variable?

    - by JZ
    I'm storing JSON formatted data into a var adds with the following methods: var adds = <%= raw @add.to_a.to_json %>; var adds = <%= raw @add.nearbys(1).to_json %>; The first line of code stores the location of an individual in JSON format, the second line of code searches for that person's neighbors, within a 1 mile range. How do I combine both of these lines of code and store the data in JSON format in the var adds variable? If you are interested in source, its here. The location is layout/adds.html.erb

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  • Ruby on rails link_to syntax

    - by mizipzor
    After following a tutorial Ive found. Im now redoing it again, without the scaffolding part, to learn it better. However, editing my \app\views\home\index.html.erb to contain: <h1>Rails test project</h1> <%= link_to "my blog", posts_path> I get an error: undefined local variable or method `posts_path' for #<ActionView::Base:0x4e1d954> Before I did this, I ran rake db:create, defined a migration class and ran rake db:migrate, everything without a problem. So the database should contain a posts table. But that link_to command cant seem to find posts_path. That variable (or is it even a function?) is probably defined through the scaffold routine. My question now is; how do I do that manually myself, define posts_path?

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  • Getting Paperclip to work in Rails

    - by Danny McClelland
    Hi Everyone, I have installed the Paperclip plugin to attempt to upload an avatar for my kase model. For some reason, the select the file button shows, and I can choose a file - but then when I click update the kase - it takes me to the show page, but the missing.png rather than the selected image. kase.rb class Kase < ActiveRecord::Base def self.all_latest find(:all, :order => 'created_at DESC', :limit => 5) end def self.search(search, page) paginate :per_page => 5, :page => page, :conditions => ['name like ?', "%#{search}%"], :order => 'name' end # Paperclip has_attached_file :avatar, :styles => { :medium => "300x300>", :thumb => "100x100>" } end kases_controller.rb # GET /kases/new # GET /kases/new.xml def new @kase = Kase.new respond_to do |format| format.html # new.html.erb format.xml { render :xml => @kase } end end new.html.erb <% content_for :header do -%> Cases <% end -% <% form_for(@kase) do |f| %> <%= f.error_messages %> <ul id="kases_new"> <li> <%= f.file_field :avatar %></li> <li>Job Ref.<span><%= f.text_field :jobno %></span></li> <li>Case Subject<span><%= f.text_field :casesubject %></span></li> <li>Transport<span><%= f.text_field :transport %></span></li> <li>Goods<span><%= f.text_field :goods %></span></li> <li>Date Instructed<span><%= f.date_select :dateinstructed %></span></li> <li>Case Status<span><%= f.select "kase_status", ['Active', 'On Hold', 'Archived'] %> </span></li> <li>Client Company Name<span><%= f.text_field :clientcompanyname %></span></li> <li>Client Company Address<span><%= f.text_field :clientcompanyaddress %></span></li> <li>Client Company Fax<span><%= f.text_field :clientcompanyfax %></span></li> <li>Case Handler Name<span><%= f.text_field :casehandlername %></span></li> <li>Case Handler Tel<span><%= f.text_field :casehandlertel %></span></li> <li>Case Handler Email<span><%= f.text_field :casehandleremail %></span></li> <li>Claimant Name<span><%= f.text_field :claimantname %></span></li> <li>Claimant Address<span><%= f.text_field :claimantaddress %></span></li> <li>Claimant Contact<span><%= f.text_field :claimantcontact %></span></li> <li>Claimant Tel<span><%= f.text_field :claimanttel %></span></li> <li>Claimant Mob<span><%= f.text_field :claimantmob %></span></li> <li>Claimant Email<span><%= f.text_field :claimantemail %></span></li> <li>Claimant URL<span><%= f.text_field :claimanturl %></span></li> <li>Comments<span><%= f.text_field :comments %></span></li> </ul> <div class="js_option"> <%= link_to_function "Show financial options.", "Element.show('finance_showhide');" %> </div> <div id="finance_showhide" style="display:none"> <ul id="kases_new_finance"> <li>Invoice Number<span><%= f.text_field :invoicenumber %></span></li> <li>Net Amount<span><%= f.text_field :netamount %></span></li> <li>VAT<span><%= f.text_field :vat %></span></li> <li>Gross Amount<span><%= f.text_field :grossamount %></span></li> <li>Date Closed<span><%= f.date_select :dateclosed %></span></li> <li>Date Paid<span><%= f.date_select :datepaid %></span></li> </ul> <div class="js_option"> <%= link_to_function "I'm confused! Hide financial options.", "Element.hide('finance_showhide');" %> </div> </div> <p> <%= f.submit "Create" %> </p> <% end %> <%= link_to 'Back', kases_path %> I have tried putting the <%= f.file_field :avatar % in it's own form on the same page, but that didn't make a difference. Thanks in advanced! Thanks, Danny

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  • Confusing rails div id naming

    - by RailAddict
    I have started using jQuery and rails. I have made a simple form that submits to the database and updates the page without reloading with ajax. In my jQuery functions I used $"#new_comment" for the id name (in my application.js and create.js.erb files) but on my articles/show view file, I named the div "add_comment" and it works.. I renamed it new_comment and it breaks! Can someone explain it please? I get an error: "no action responded to 1" My function in my controller is "create".

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  • NameError: uninitialized constant Nokogiri::HTML::DocumentFragment

    - by Mike Sutton
    About three hours ago I started seeing the above error in my production server. It comes from a call to the sanitize gem: vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:276:in 'load_missing_constant' vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:468:in `const_missing' vendor/gems/sanitize-1.2.0/lib/sanitize.rb:91:in `clean!' vendor/gems/sanitize-1.2.0/lib/sanitize.rb:84:in `clean' vendor/gems/sanitize-1.2.0/lib/sanitize.rb:49:in `clean' app/helpers/application_helper.rb:28:in `display_none' app/views/main/_blogs.html.erb:13:in `_run_erb_47app47views47main47_blogs46html46erb' The error only occurs on the production server (linux), not my development machine (windows) I tried rolling back my latest deployment but it didn't fix it. I've updated to sanitize 1.2.0 (which was the latest version brought down by gem update sanitize, though I note my host is running 1.3.6. Can anyone provide any clues to help fix this?

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  • Rails partial show latest 5 kases

    - by Danny McClelland
    Hi Everyone, I have my application setup with a few different partials working well. I have asked here how to get a partial working to show the latest entry in the kase model, but now I need to show the latest 5 entries in the kase model in a partial. I have duplicated the show most recent one partial and it's working where I need it to but only shows the last entry, what do I need to change to show the last 5? _recent_kases.html.erb <% if Kase.most_recentfive %> <h4>The most recent case reference is <strong><%= Kase.most_recentfive.jobno %></strong></h4> <% end %> kase.rb def self.most_recentfive first(:order => 'id DESC') end Thanks, Danny

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