| Facebook authentification with omniauth Posted: 27 Oct 2016 08:04 AM PDT I'm encouter an issue with this tutorial to wreate a Facebook authetification system. First, I had an error ActiveModel::ForbiddenAttributesError. I corrected it with coderhs answer. Now when i loggin with facebook it works, but when i loggin with annother account, it overwrites the previous user in my table so i can't have more than 1 facebook user connected at the same time and keep informations about him User.rb def self.from_omniauth(auth) where(auth.slice(provider: auth.provider, uid: auth.uid)).first_or_create.tap do |user| user.provider ||= auth.provider user.uid = auth.uid user.name = auth.info.name user.oauth_token = auth.credentials.token user.oauth_expires_at = Time.at(auth.credentials.expires_at) user.save! end
If you need some code do not hesitate to ask. I also want to know how to get the email from the user, i tried to add user.email = auth.email
but it was too easy to be true |
| db:schema:dump on RDS with mysql. Error: Could not dump table "" because of following NoMethodError undefined method `type' for "int(11)":String Posted: 27 Oct 2016 07:56 AM PDT Setup: rails: 4.2.5.1
ruby: 2.2.4p230 (2015-12-16 revision 53155) [i386-mingw32]
windows 7 environment database.yml: default: &default adapter: mysql2 encoding: utf8 database: "database" username: "name" password: "password" host: "host" port: 3306 development: adapter: mysql2 encoding: utf8 database: "database" username: "name" password: "password" host: "host" port: 3306
I am trying to use an existing mysql database on RDS. I created a new project using
rails new "app" and then attempted to get the database schema. When I run
ruby bin\rake db:schema:dump the output in my schema.rb file is filled with the same error for every table in the database: ActiveRecord::Schema.define() do # Could not dump table "test" because of following NoMethodError # undefined method `type' for "int(11)":String end
I first thought that maybe it was because int(11) was a 64 bit integer, but later learned that the "11" in int(11) refers to the display size, and that it is still a 32 bit integer. Can anyone explain why this is happening or why ruby doesn't recognize the 32 bit integer type for the primary key column. |
| Removal of points using Observer in Merit Rails Gem Posted: 27 Oct 2016 07:53 AM PDT Currently in my Observer I add points to Users based on the badges that are assigned to them. class NewBadgeObserver def update(changed_data) return unless changed_data[:merit_object].is_a?(Merit::BadgesSash) description = changed_data[:description] user = User.where(sash_id: changed_data[:sash_id]).first badge = changed_data[:merit_object].badge granted_at = changed_data[:granted_at] case badge.name when "added-1-observation", "added-1-issue", "added-observation-at-same-location" user.add_points(10) when "added-10-observations", "added-10-issues", "added-10-observations-at-same-location" user.add_points(100) when "added-25-observations", "added-25-issues", "added-25-observations-at-same-location" user.add_points(250) when "added-50-observations", "added-50-issues", "added-50-observations-at-same-location", "resolved-an-issue" user.add_points(500) when "added-100-observations", "added-100-issues", "added-100-observations-at-same-location" user.add_points(1000) else user.add_points(0) end end end
How would I go about removing these points in the Observer based on the badge being removed? Could I use the description or something similar to match against? It's not really clear from the code what happens when a badge is removed on the Observer. I guess I could do these on a controller level on the destroy method but the rules are getting really complex to remove the correct number of points. case description when "removed added-1-observation badge", "removed added-1-issue badge", "removed added-observation-at-same-location badge" user.subtract_points(10) when "removed added-10-observations badge", "removed added-10-issues badge", "removed added-10-observations-at-same-location badge" user.subtract_points(100) when "removed added-25-observations badge", "removed added-25-issues badge", "removed added-25-observations-at-same-location badge" user.subtract_points(250) when "removed added-50-observations badge", "removed added-50-issues badge", "removed added-50-observations-at-same-location badge", "removed resolved-an-issue badge" user.subtract_points(500) when "removed added-100-observations badge", "removed added-100-issues badge", "removed added-100-observations-at-same-location badge" user.subtract_points(1000) else user.subtract_points(0) end
|
| Rails: SQL query on unknown number of queries Posted: 27 Oct 2016 07:40 AM PDT I have a Rails search form that performs a dynamic query. That is, the user enters a search like: (age=9) OR (gender="male" AND age=25)
So, I don't know how many queries I will be searching by until runtime. However, the general syntax of the Rails search query is very limiting: where("att1 LIKE ? or att2 LIKE ? or att3 LIKE ?", query_1, query_2, query_3)
I cannot pass an array for the 'query' arguments, without Rails throwing an error. queries = [query_1, query_2, ... , query_n] where("att_1 LIKE ? or att_2 LIKE ? ... or att_n LIKE ?", queries)
Error: NoMethodError (undefined method `where' for ["a", "b", "c"]:Array)
Attempting to splat the array yields the same error: queries = [query_1, query_2, ... , query_n] where("att_1 LIKE ? or att_2 LIKE ? ... or att_n LIKE ?", *queries)
Again: NoMethodError (undefined method `where' for ["a", "b", "c"]:Array)
So what can I do? |
| Optional param in rails path Posted: 27 Oct 2016 08:04 AM PDT I have this conditional: if(request.fullpath != '/') redirect_to login_path(:redirect_url => view_context.b64_encode(request.fullpath)) unless current_user else redirect_to login_path unless current_user end
Which basically says only add the :redirect_url param if the request is not the root url. However it's meant repeating the redirect and unless code... Is it possible to make that param optional like a ternary? |
| HUGE model in rails? What would be the appropriate way to do it? Posted: 27 Oct 2016 07:54 AM PDT I'm practicing, and came up with an idea that I should create an experiment that involves building an editor that can customize a real car with all parts that a real car can have. And then allow the user to individually customize it down to the finest level of detail simply using true or false And then output it accordingly like: <%= if @vehicle.steering_wheel_color == blue %> show a blue steeringhweel <% end %> <%= if @vehicle.steering_wheel_color == red %> show a red steeringhweel <% end %> <%= if @vehicle.gear_box_knob == brown_wood %> show a brown wooden gear knob <% end %>
Since we're talking roughly around 500-1000 parameters(?) I'm sure that my idea of Architecture is preeeetty bad, so I'm wondering what the 'correct' or even the best way of doing it would be? considering that each variable needs to be queryable? I've done some googling and I found one answer that advised to do one model that belongs to vehicle that houses all the booleans. But then I asked a friend and he said that would be a terrible idea. I guess my question is, what's a good way to build a huge car-editor? |
| Attach dragonfly image in email rails 5 Posted: 27 Oct 2016 07:22 AM PDT I am using dragonfly to upload images and need to send emails with those images attached. I use to display images in a web page this way and is ok, <td><%= image_tag @some_record.some_image.thumb('400x200#').url %></td>
I am using Action Mailer to send emails and just cant figure how to attach that image in the mailer. |
| Rails 5 Prawn pdf show total table values Posted: 27 Oct 2016 07:21 AM PDT In my view I have <h4><%= number_to_currency @grand_total, precision: 0, unit: "EUR ", separator: "," %></h4>
This shows a correct total for a column. On the pdf generated by prawn I want to show the same so I tried to enter on the corresponding .rb file: text number_to_currency(@grand_total, precision: 0, unit: "EUR ", separator: ",")
which gives me no error but shows no value. What is the correct syntax? |
| Add text dynamical on image with rails [on hold] Posted: 27 Oct 2016 07:12 AM PDT I need your help please… I have been tying to figure out a way to add dynamical text to an image with rails. But with no luck as of yet. For example: How can a user on my web page add text to existing images? Thank u all in advance. |
| Next & previous through @user's object? Posted: 27 Oct 2016 07:49 AM PDT Currently if a person clicks the link_to they're brought to the previous or next challenge. But how can link_to work where only @user `s challenges are included? view <% if @challenge.previous %> <%= link_to 'Prev', challenge_path(@challenge.previous), class: "footer-left", style: "color: white; font-style: normal;" %> <% else %> <%= link_to 'Home', root_url, class: "footer-left" %> <% end %> <% if @challenge.next %> <%= link_to 'Next', challenge_path(@challenge.next), class: "footer-right" %> <% else %> <%= link_to 'Home', root_url, class: "footer-right" %> <% end %>
model def next Challenge.where("id > ?", id).first # I get nil error for... Challenge.find_by(user_id: @user.id).where("id > ?", id).first end def previous Challenge.where("id < ?", id).last # I get nil error for... Challenge.find_by(user_id: @user.id).where("id > ?", id).last end
I know @user doesn't work in the model, but I'm just using it as an example for trying to get the User whose challenges they belong to. |
| Michae hartl Chapter 12 Password error Posted: 27 Oct 2016 06:52 AM PDT Hi guys again me with another question. I still have problems with a code and cant find a solution to my question. I followed every step till this error came. It says Expected nill to not be equal to nil. Can someone help me and explain this to me? FAIL["test_password_resets", PasswordResetsTest, 1.7315357209881768] test_password_resets#PasswordResetsTest (1.73s) Expected nil to not be equal to nil. test/integration/password_resets_test.rb:20:in `block in <class:PasswordResetsTest>'
here is my password_reset_test.rb require 'test_helper' class PasswordResetsTest < ActionDispatch::IntegrationTest def setup ActionMailer::Base.deliveries.clear @user = users(:michael) end test "password resets" do get new_password_reset_path assert_template 'password_resets/new' # Invalid email post password_resets_path, params: { password_reset: { email: "" } } assert_not flash.empty? assert_template 'password_resets/new' # Valid email post password_resets_path, params: { password_reset: { email: @user.email } } assert_not_equal @user.reset_digest, @user.reload.reset_digest assert_equal 1, ActionMailer::Base.deliveries.size assert_not flash.empty? assert_redirected_to root_url # Password reset form user = assigns(:user) # Wrong email get edit_password_reset_path(user.reset_token, email: "") assert_redirected_to root_url # Inactive user user.toggle!(:activated) get edit_password_reset_path(user.reset_token, email: user.email) assert_redirected_to root_url user.toggle!(:activated) # Right email, wrong token get edit_password_reset_path('wrong token', email: user.email) assert_redirected_to root_url # Right email, right token get edit_password_reset_path(user.reset_token, email: user.email) assert_template 'password_resets/edit' assert_select "input[name=email][type=hidden][value=?]", user.email # Invalid password & confirmation patch password_reset_path(user.reset_token), params: { email: user.email, user: { password: "foobaz", password_confirmation: "barquux" } } assert_select 'div#error_explanation' # Empty password patch password_reset_path(user.reset_token), params: { email: user.email, user: { password: "", password_confirmation: "" } } assert_select 'div#error_explanation' # Valid password & confirmation patch password_reset_path(user.reset_token), params: { email: user.email, user: { password: "foobaz", password_confirmation: "foobaz" } } assert is_logged_in? assert_not flash.empty? assert_redirected_to user end end
and my password_resets_controller.rb class PasswordResetsController < ApplicationController before_action :get_user, only: [:edit, :update] before_action :valid_user, only: [:edit, :update] before_action :check_expiration, only: [:edit, :update] # Case (1) def new end def create @user = User.find_by(email: params[:password_reset][:email].downcase) if @user @user.create_reset_digest @user.send_password_reset_email flash[:info] = "Email sent with password reset instructions" redirect_to root_url else flash.now[:danger] = "Email address not found" render 'new' end end def edit end def update if params[:user][:password].empty? # Case (3) @user.errors.add(:password, "can't be empty") render 'edit' elsif @user.update_attributes(user_params) # Case (4) log_in @user @user.update_attribute(:reset_digest, nil) flash[:success] = "Password has been reset." redirect_to @user else render 'edit' # Case (2) end end private def user_params params.require(:user).permit(:password, :password_confirmation) end # Before filters def get_user @user = User.find_by(email: params[:email]) end # Confirms a valid user. def valid_user unless (@user && @user.activated? && @user.authenticated?(:reset, params[:id])) redirect_to root_url end end # Checks expiration of reset token. def check_expiration if @user.password_reset_expired? flash[:danger] = "Password reset has expired." redirect_to new_password_reset_url end end end
thanks for the help. |
| masonry-brick media-item blocks tooltips Posted: 27 Oct 2016 06:51 AM PDT The following is in a Rails 3 application: <i class="fa fa-hourglass-half has-tooltip info-icon-small" aria-hidden="true" data-toggle="tooltip" data-placement="auto" data-original-title="This tooltip shows up as expected."></i> <ul class="masonry media-grid" style="margin-top: 15px;"> <li class="masonry-brick media-item"> <h3>This text shows up</h3> <i class="fa fa-hourglass-half has-tooltip info-icon-small" aria-hidden="true" data-toggle="tooltip" data-placement="auto" data-original-title="No sign of this tooltip."></i> </li> </ul>
When the page is viewed the first icon shows up with a working tooltip but the second icon's tooltip is never visible. Removing class="masonry-bick media-item" from each <li> element causes the tooltips to show up whilst, of course, making a mess of the layout. Does anyone know why this happens, or any means of allowing the tooltips to display within the <li class="masonry-brick media-item"> elements? |
| An error occurred while installing pg (0.19.0), and Bundler cannot continue Posted: 27 Oct 2016 06:49 AM PDT Yesterday I install Ubuntu 16.04.1. ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-linux] rails -v '4.2.6' create a rails project run bundle and have an error: Errno::EACCES: Permission denied @ rb_sysopen - /home/zeus/.rbenv/versions /2.3.1/lib/ruby/gems/2.3.0/gems/pg-0.19.0/.gemtest An error occurred while installing pg (0.19.0), and Bundler cannot continue. Make sure that `gem install pg -v '0.19.0'` succeeds before bundling.
When run gem install pg -v '0.19.0' ERROR: While executing gem ... (Errno::EACCES) Permission denied @ rb_sysopen - /home/zeus/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/pg-0.19.0/.gemtest
|
| Why in my links collection contain empty object? Posted: 27 Oct 2016 07:14 AM PDT Why I get collection object with nil parameters, that I didn't create advisedly? routes.rb: devise_for :users root to: "posts#index" resources :posts do resources :comments, only: [:new, :create] resources :images do resources :comments, only: [:new, :create] end resources :links do resources :comments, only: [:new, :create] end end
post_controller: class PostsController < ApplicationController before_filter :authenticate_user!, :only => [:new, :create] def index @posts = Post.all end def show @post = Post.find(params[:id]) end def new @post = Post.new end def create @post = Post.new(post_params) respond_to do |format| if @post.save format.html { redirect_to @post, notice: 'Post was successfully created.' } format.json { render :show, status: :created, location: @post } else format.html { render :new } format.json { render json: @post.errors, status: :unprocessable_entity } end end end
links_controller: class LinksController < ApplicationController before_action :set_link, only: [:show, :edit, :update, :destroy] def index @links = Link.all end def show end def new @post = Post.find(params[:post_id]) @link = @post.links.new end def edit end def create @post = Post.find(params[:post_id]) @link = @post.links.new(link_params) respond_to do |format| if @link.save format.html { redirect_to post_path(@post,@link), notice: 'Link was successfully created.' } format.json { render :show, status: :created, location: @link } else format.html { render :new } format.json { render json: @link.errors, status: :unprocessable_entity } end end end
I get @post.links in /posts/:id, I have written on views/posts/show.html.erb: <%= @post.links %>
and I have got collection with empty parameters: #<ActiveRecord::Associations::CollectionProxy [#<Link id: nil, url: nil, created_at: nil, updated_at: nil, post_id: 6>]
Why? |
| passenger-status Application groups sorting Posted: 27 Oct 2016 06:32 AM PDT I have a large server in AWS (32 GB ram / 8 core), our rails app has over 350 simultaneous users. We are using nginx and Passenger 4.0.57 Given I have set passenger_min_instances 50; And I have set passenger_max_pool_size 75; When the traffic lowers Then some of the 50 process are not being used. So when I do passenger-status I would like to see the list of processes sorted by the "last used", or by the "Memory" or by the "CPU". any sorting would be better than "PID" |
| Perform an INSERT in Jena Fuseki with SPARQL gem (Ruby) Posted: 27 Oct 2016 06:34 AM PDT So I'm developing an API in Rails and using Jena Fuseki to store triples, and right now I'm trying to perform an INSERT in a named graph. The query is correct, since I ran it on Jena and worked perfectly. However, no matter what I do when using the Rails CLI, I keep getting the same error message: SPARQL::Client::MalformedQuery: Error 400: SPARQL Update: No 'update=' parameter
I've created a method that takes the parameters of the object I'm trying to insert, and specified the graph where I want them. def self.insert_taxon(uri, label, comment, subclass_of) endpoint = SPARQL::Client.new("http://app.talkiu.com:8030/talkiutest/update") query = "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX owl: <http://www.w3.org/2002/07/owl#> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> prefix gpc:<http://www.ebusiness-unibw.org/ontologies/pcs2owl/gpc/> prefix tk: <www.web-experto.com.ar/ontology#> INSERT DATA { GRAPH <http://app.talkiu.com:8030/talkiutest/data/talkiu> { <#{uri}> a owl:Class. <#{uri}> rdfs:label '#{label}'@es . <#{uri}> rdfs:comment '#{comment}' . <#{uri}> rdfs:subClassOf <#{subclass_of}> . } }" resultset = endpoint.query(query) end
As you can see, I'm using the UPDATE endpoint. Any ideas? Thanks in advance |
| Before action not firing when pasting in same URL with different params Posted: 27 Oct 2016 07:27 AM PDT I'm having a before_action :slice in my application_controller which slices some params and appends them to an object. So let's say I visit https://myhomepage.com?param1=1¶m2=2 it will slice these params and appends them to an array. When I'm staying on the page and I paste https://myhomepage.com?param1=1¶m2=2 again it will not run the before action for whatever reason. Only if I press the reload button it will trigger the before action again with the new parameters. Am I missing something here? |
| uninitialized constant ActiveRecord::ConnectionAdapters::AbstractMysqlAdapter::MysqlDateTime Posted: 27 Oct 2016 05:51 AM PDT In production environment I'm getting the below error uninitialized constant ActiveRecord::ConnectionAdapters::AbstractMysqlAdapter::MysqlDateTime
Someone help me to solve this issue. I have searched so many things, but I'm not able to find solution for this issue. - Ruby version - 2.2.0
- Rails version - 4.2.0
|
| Send async email about destroyed objects Posted: 27 Oct 2016 07:12 AM PDT In rails I have often had to send an email to someone about something that has been deleted. The issue is that when writing en asynchronously email the object has been deleted before the email is generated. I usually only add integers and strings as parameters, just like sidekiq suggests. I thought about doing this: mail = MyMailer.some_mail(recipient_id, deleted_object_id) mail.delay.deliver
But this is not recommended either: avoiding delaying methods on instances
I've also considered 2 other options, but I don't like them at all. - Use acts_as_paranoid, setting a deleted_at field on the record instead of delete from db.
- Render the email body, save to db and send later
Any suggestions to a propper way to solve this? |
| Rails, Devise: Add Attributes to new created object in devise Posted: 27 Oct 2016 05:43 AM PDT This is my user_controller, which was generated by devise. def create super end
I want, that all new users have the role "user". I tried this: def create super do @user.roles.create(role: "user") end end
It doesn't work, but if I type in the same line of code in rails console, it does work. What do I need to change in the controller, that all new users have the role "users"? |
| Internet Explorer specific styles Rails 5 Sass Posted: 27 Oct 2016 05:34 AM PDT Internet Explorer as usual is giving me trouble with the padding of an element and it isn't centered vertically (Edge, Firefox, Chrome, Safari are all good). I created a ie.sass file: .quemsomos-links-desktop-lattes padding-top: 10px .quemsomos-links-desktop-linkedin padding-top: 10px
On my assets.rb file: Rails.application.config.assets.precompile += %w( ie.css )
On my application.html.erb file: <%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %> <!--[if IE]> <%= stylesheet_link_tag 'ie', media: 'all', 'data-turbolinks-track' => true %> <![endif]--> <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>
According to other answers, like this one this should be enough for it to display correctly, but IE still doesn't have my specific rules. Any ideas? Thank you very much. |
| rails docker-compose bundle install error Posted: 27 Oct 2016 05:30 AM PDT I have problem with my docker-compose on ruby on rails. when i run docker-compose run web bundle install
i have information that my gems installed succesfully, but when in next step i run docker-compose up
then i have information that my container exited with code 1. I looked on docker logs and i get information that Could not find gem XXXXXXXXX in any list of sources(Bundler::GemNotFound)
what is interesting i don't use this gem. Moreover when i run bundle install outside container (on my local machine) everything works good. Where could be problem ? Please help |
| Bundler could not find compatible versions for gem "rack": In Gemfile: Posted: 27 Oct 2016 05:46 AM PDT My ruby version is 1.9.3 I am trying to configure the redmine project to my system. I installed all the required gems. But when i start the server it showing some error. Bundler could not find compatible versions for gem "rack": In Gemfile: rails (= 3.2.22) was resolved to 3.2.22, which depends on actionpack (= 3.2.22) was resolved to 3.2.22, which depends on rack (~> 1.4.5) poltergeist was resolved to 1.0.0, which depends on capybara (~> 1.1) was resolved to 1.1.4, which depends on rack (>= 1.0.0) rack-openid was resolved to 1.4.2, which depends on rack (>= 1.1.0) poltergeist was resolved to 1.0.0, which depends on capybara (~> 1.1) was resolved to 1.1.4, which depends on rack-test (>= 0.5.4) was resolved to 0.6.3, which depends on rack (>= 1.0)
I don't know what to do... My rack version is 1.6.4 |
| miniMagick identify error in rails_admin app: Failed to manipulate with MiniMagick, maybe it is not an image? Posted: 27 Oct 2016 05:26 AM PDT I am using carrierwave and mini_magick gems to use images inside rails_admin. When I upload an image it fails with this error: Failed to manipulate with MiniMagick, maybe it is not an image? Original Error: `identify C:/Users/Zeke/AppData/Local/Temp/mini_magick20161027-21132-xdongz.png` failed with error: identify.exe: RegistryKeyLookupFailed `CoderModulesPath' @ error/module.c/GetMagickModulePath/662. identify.exe: no decode delegate for this image format `PNG' @ error/constitute.c/ReadImage/501.
And this doesn't happen when I don't include the following lines in my uploader.rb # Process files as they are uploaded: process resize_to_fit: [800, 600] # Create different versions of your uploaded files: version :thumb do process resize_to_fill: [40, 30] end
I require thumbnails, and how do I do it?
Here's What I'm sure of: - ImageMagick has been installed and is working for sure. I am able to convert png to jpg and jpg to png, identify images...
identify C:/Users/Zeke/AppData/Local/Temp/mini_magick20161027-21132-xdongz.png executes successfully when run in cmd (without admin priv, if that matters) 
identify -list format gives a huuuuge list that almost contains every image format I can think of. And yes, it includes JPG, JPEG, PNG and all that I need. 
convert -version does include jpeg png delegates 
What am I doing wrong? |
| Reference YAML keyword file for DRY controller code Posted: 27 Oct 2016 05:07 AM PDT I want to be able to use globally accessible symbols throughout my rails app in order to print or return a set of easily maintainable strings/sentences. I've heard of a way using YAML before but I can't remember the specifics of it's implementation or what it's called. An example how I ideally imagine it would work: Controller def foo if token.expired? render json: { message: :token_expiry_message } end end def bar if !user.authenticate flash[:notice] = :token_expiry_message end end
Yaml file somewhere token_expiry_message: "The user token is expired, please re-authenticate"
This way I can DRY up my controller code and use a standard language set throughout my app by referring them from the YAML file. |
| Passing in an Integer with select_tag Posted: 27 Oct 2016 05:01 AM PDT So this is in my controller def index @tutor = Tutor.where(:admin => false) @tutor = @tutor.subject_search(params[:subject_search]) if params[:subject_search].present? @tutor = @tutor.fees_search(params[:fees_search]) if params[:fees_search].present? end
And this are the methods from the model The fees_search method def self.fees_search(amount) @tutor ||= Tutor.where(admin: false) @tutor.map do |tutor| @fees = tutor.profile.fees if @fees <= amount #puts 'if is working' @tutor = tutor else #puts 'else is working' @tutor = nil end @tutor end end
And this is the subject_search method def self.subject_search(name) @result = Subject.where("name LIKE ?" , "#{name}").take @tutor = @result.tutors end
So i can do something like @tutor = Tutor.subject_search('English') in my rails console followed by @tutor.fees_search(20) and i get a result. However when done in my index view, i receive the error comparison of Fixnum with String failed So based on the views in the form <%= label_tag 'fees_search', 'Fees' %> <%= select_tag 'fees_search', options_from_collection_for_select(, :selected => params[:fees_search]), :include_blank => true, class:'form-control' %> <%= submit_tag 'Filter', class: 'btn btn-primary btn-xs' %>
And when i inspect in the browser, i see <option value = "10"> (and so on and so forth) which im guessing is the reason the error is coming out? If thats the case how can i set my select_tag to output integer values instead? Or is there a more elegant solution for filtering for subjects and/or fees? Is there a need for me to post the relations? |
| Need simple Rails many to many association logic Posted: 27 Oct 2016 04:26 AM PDT I have list of products and list of categories. Also I have a mapping table 'product_categories' which tells that products comes under different category and also category has many products. Here the category list is defined by admin. Show the number of categories are fixed, but can be varied. Now i need to get the list of products which are mapped with categories product.rb has_many :product_categories, dependent: :destroy has_many :categories, through: :product_categories category.rb has_many :product_categories has_many :products, :through => :product_categories product_category.rb belongs_to :product belongs_to :category
I have written the code as, ProductCategory.joins(:category).map(&:category).uniq
Is there any way to simplify this line. |
| Php equivalent mcrypt_get_block_size( MCRYPT_RIJNDAEL_128 ,MCRYPT_MODE_CBC); in ruby Posted: 27 Oct 2016 04:56 AM PDT Need small help, can you please tell me Ruby equivalent for following code which is in php. mcrypt_get_block_size( MCRYPT_RIJNDAEL_128 ,MCRYPT_MODE_CBC);
I found answer for myself. cipher = OpenSSL::Cipher.new("aes-128-cbc") cipher.block_size
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| Rails 5 rename single resource route name Posted: 27 Oct 2016 03:45 AM PDT I am trying to create a separate :show route, to use route globbing on the :id parameter. For this, I created a resource route without the show route and also a separate show route: resource :test, except: [:show] get 'test/*id', to: 'test#show', as: :test
the problem is that I receive the error: You may have defined two routes with the same name using the:asoption, or you may be overriding a route already defined by a resource with the same naming. If I remove as: :test it works. rails routes shows: tests POST /tests(.:format) new_test GET /tests/new(.:format) edit_test GET /tests/:id/edit(.:format) test PATCH /tests/:id(.:format) <-- WHY?? DELETE /tests/:id(.:format) GET /tests/*id(.:format)
as you can see, resources renamed the PATCH route to :test. If I remove that route, the DELETE route is named test, and so on. How can I stop resources from using the test route name specifically? I cannot move my globbing route above the resource block obviously because then all other routes are globbed too. What I want: tests POST /tests(.:format) new_test GET /tests/new(.:format) edit_test GET /tests/:id/edit(.:format) PATCH /tests/:id(.:format) DELETE /tests/:id(.:format) test GET /tests/*id(.:format)
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| Cannot run test cases using rubymine Posted: 27 Oct 2016 02:54 AM PDT I am using ruby version 2.3.1 and rubymine version 8.0.1. It shows error like following when I try to run test cases Screenshot1: Run test case using following way  Screenshot2: Error when I run test cases  |
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