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RUBY-ON-RAILS QUESTIONS

Active Model Serializer - How do I include an attribute conditionally? Rails
Active Model Serializer - How do I include an attribute conditionally? Rails
will be helpful for those in need After reading the documentation, looks like the include will be available only in the v0.10.0 version. The correct docs from v0.9 are these: https://github.com/rails-api/active_model_serializers/tree/v0.9.0attributes
TAG : ruby-on-rails
Date : November 23 2020, 09:01 AM , By : kvapil
Rails Fake-S3 on CircleCI Connection refused
Rails Fake-S3 on CircleCI Connection refused
wish of those help After couple days looking for a decision I found it. The problem was in running FakeS3 in background using sign
TAG : ruby-on-rails
Date : November 23 2020, 09:01 AM , By : POS Hardware Dubai
Insert a variable for a label in Rails
Insert a variable for a label in Rails
wish of those help Like @sjagr said, you need to declare the @name variable in the controller action that handles the page you are rendering.
TAG : ruby-on-rails
Date : November 23 2020, 09:01 AM , By : Abbas Ali
Filter chain halted as :require_no_authentication rendered or redirected
Filter chain halted as :require_no_authentication rendered or redirected
Hope that helps For the HomeController you may need a skip_before_filter. At the top of the HomeController, :skip_before_filter :require_no_authentication, only: [:index]I am not sure skipping the filter all together is the right solution. If that do
TAG : ruby-on-rails
Date : November 22 2020, 02:59 PM , By : Rohith
Public Activity - Creating activities based on certain attribute changes
Public Activity - Creating activities based on certain attribute changes
will help you ActiveModel::Dirty handles tracking changes to attributes in your model. There are a number of ways to tell whether or not a specific attribute did change: changed_attributes returns a Hash of model changes before save (meaning it is {}
TAG : ruby-on-rails
Date : November 22 2020, 02:59 PM , By : Alexander Bezhin
Turn off email sends from Devise in test (Rspec)
Turn off email sends from Devise in test (Rspec)
wish helps you When delivery_method is set to test, everything is still run the same, with the only difference being the message is not sent to SMTP. So, in your case Redis is still required for test emails, as Resque is still going to process them,
TAG : ruby-on-rails
Date : November 22 2020, 02:59 PM , By : Santhosh Damodaran
Attributes method explanation
Attributes method explanation
I wish this help you Assuming that this is a method in a class, it assigns the attributes to the class.Suppose we have this class:
TAG : ruby-on-rails
Date : November 22 2020, 02:42 PM , By : lp1172
Rails 4 Bootstrap DatePicker class today not working
Rails 4 Bootstrap DatePicker class today not working
it should still fix some issue Assuming you are using this bootstrap-datepicker, https://github.com/eternicode/bootstrap-datepickerYou should be doing something like this:
TAG : ruby-on-rails
Date : November 22 2020, 02:42 PM , By : Paulo Trejo
Mongoid: Change(rename) foreign_key name without loosing data
Mongoid: Change(rename) foreign_key name without loosing data
will help you You can interface directly with MongoDB to rename the field. So fire up your Mongo shell and run this:
TAG : ruby-on-rails
Date : November 22 2020, 09:00 AM , By : ryo
Setting up controller and its actions for Admin login only, not for a Users?
Setting up controller and its actions for Admin login only, not for a Users?
Hope that helps Whether you're using a gem or rolling your own authorization, I would approach this by creating an additional controller. For regular users:
TAG : ruby-on-rails
Date : November 22 2020, 09:00 AM , By : Fayyaaz Loonat
How do I map an association through a model's parents if it can only belong to one of them?
How do I map an association through a model's parents if it can only belong to one of them?
around this issue If your shopping bag is a specific bag, then you can declare it as a subclass.
TAG : ruby-on-rails
Date : November 21 2020, 09:01 AM , By : FaizRibic
How to use the HAML t() helper in RoR
How to use the HAML t() helper in RoR
wish help you to fix your issue I'm developing an application with Rails 4 and I want to use the helper t() with HAML, but I can not , hope in translational file you have en.yml
TAG : ruby-on-rails
Date : November 21 2020, 09:01 AM , By : Ethan Whale
How do I output a json dates array with RABL
How do I output a json dates array with RABL
may help you . You can't achieve this in the JSON response from Rabl or jBuilder, because Chronoline is expecting JavaScript date objects.To do this, I recommend the following:
TAG : ruby-on-rails
Date : November 21 2020, 09:01 AM , By : Jay
Why does this FTP block read operation throw EOFError?
Why does this FTP block read operation throw EOFError?
wish helps you The issue turned out to be an FTP idle timeout. Because UpdateVfile.loader is a long-running task, I left FTP alone for too long and it cratered with an EOFError. Obviously, a timeout error would have been much better than such a nonde
TAG : ruby-on-rails
Date : November 21 2020, 07:38 AM , By : Garrett
prawn rails download on open
prawn rails download on open
I wish this helpful for you I use prawn-rails. , Should work:
TAG : ruby-on-rails
Date : November 21 2020, 07:38 AM , By : Rahul Gurdaspuria
Rails 4 deeply nested content tags and strings
Rails 4 deeply nested content tags and strings
Hope that helps The problem in accessability_sub_level is that you are only returning va[:title] from the first content_tag block. You have to concatenate it with the nested content_tag block:
TAG : ruby-on-rails
Date : November 20 2020, 09:01 AM , By : juanga
Sending mail with Rails 4 in development environment
Sending mail with Rails 4 in development environment
This might help you I'm new in Rails. I'm trying to make a email notification about new messages of contact form using ActionMailer. I followed different tutorials, tried to apply different advices, but it didnt help. My setup_mail.rb file is: , You
TAG : ruby-on-rails
Date : November 19 2020, 09:01 AM , By : luisperlazaro
Mapping `has_many` in active admin
Mapping `has_many` in active admin
I wish this helpful for you Column accepts a block.
TAG : ruby-on-rails
Date : November 19 2020, 09:01 AM , By : Manvi Gautam
Rails - Use nested form to create new records
Rails - Use nested form to create new records
wish of those help Okay, so it seems what I was trying to do was fairly simple after all. No need for nested_form, the simple_form does just as well. But I'm sure nested_form (as Tory SK suggested) does the trick as well. The major point was adding a
TAG : ruby-on-rails
Date : November 19 2020, 12:35 AM , By : Richard
How to integrate elasticsearch with rails application specifically using "Elasticsearch" gem
How to integrate elasticsearch with rails application specifically using "Elasticsearch" gem
With these it helps For a very basic quick start of the elastic's github gem for model indexing you could do the following in development environment with elasticsearch running on localhost:9200in Gemfile:
TAG : ruby-on-rails
Date : November 19 2020, 12:35 AM , By : chinna rama krishna
Querying double has_many :through association
Querying double has_many :through association
hope this fix your issue I have a double has_many :through relation like this: , Hey you can try this way
TAG : ruby-on-rails
Date : November 19 2020, 12:35 AM , By : malkeet singh
how to give whitespace in ruby slim
how to give whitespace in ruby slim
wish helps you You can solve this with string interpolation, by doing something like this:
TAG : ruby-on-rails
Date : November 18 2020, 09:01 AM , By : Pallavi
Mongoid, get distance from models in kilometers
Mongoid, get distance from models in kilometers
will be helpful for those in need Since the MongoDB $near operator already sorts documents by distance, you could simply calculate the distance in your Rails server for each of the documents returned by your query, for instance using the Haversine ge
TAG : ruby-on-rails
Date : November 18 2020, 09:01 AM , By : Tarun Mudgal
can I get a data from file only one time in my gem similar to config/initializers in rails?
can I get a data from file only one time in my gem similar to config/initializers in rails?
this one helps. The right place to do this is in an initializer file. So add a new file to config/initializers. From there you can load your configuration file like this:
TAG : ruby-on-rails
Date : November 17 2020, 09:01 AM , By : Denaton
Calling a method from another controller in rails
Calling a method from another controller in rails
To fix the issue you can do I have 2 controllers (booking and taxi). I am going to call a method of taxi in create method of booking. , Move compute to the Taxi model like this:
TAG : ruby-on-rails
Date : November 17 2020, 09:01 AM , By : francesco pham
Video content type is invalid in paperclip-ffmpeg
Video content type is invalid in paperclip-ffmpeg
hop of those help? You should use video/quicktime as the mimetype. Have a look at a list of video mimetypes overhere:http://help.encoding.com/knowledge-base/article/correct-mime-types-for-serving-video-files/
TAG : ruby-on-rails
Date : November 17 2020, 09:01 AM , By : deoee
Website Speed With Heroku
Website Speed With Heroku
will be helpful for those in need Without analysing the actual code of your app, here is how I would go about it. Use unicorn or phusion passenger as the app server. Move out all the assets to a cloud service/cdn with the help of fog gem. Do as less
TAG : ruby-on-rails
Date : November 17 2020, 09:01 AM , By : ArnaudT
adding Belongs to without "nil" in rails
adding Belongs to without "nil" in rails
fixed the issue. Will look into that further Hi I am creating one application there I have user table and some tables that belongs to user says account,purchase like that.I have created some users and testing. Now I need to add another table that als
TAG : ruby-on-rails
Date : November 17 2020, 09:01 AM , By : shalu
Cloudfront returning 401 in response to requests
Cloudfront returning 401 in response to requests
it should still fix some issue Does your site use http and HTTPS both simultaneously? In that case the CDN will cache the first request and its scheme. If the first request was over http, all HTTPS will get ignored even though the config is in the Co
TAG : ruby-on-rails
Date : November 17 2020, 09:01 AM , By : Homestay Agency
Should you use belongs_to if belonging to the object is optional?
Should you use belongs_to if belonging to the object is optional?
it helps some times Unless you put something like following validation at your post, it won't throw an error:
TAG : ruby-on-rails
Date : November 16 2020, 09:01 AM , By : Cubexus
Ordering a rails model with string outline notation
Ordering a rails model with string outline notation
Does that help I have a rails model that the primary field that the user wants to sort on is a Line Item that is stored in dot-notation format as a string (i.e.: 2.1.4, 2.1.4.1, 2.1.4.5, etc). Ordering alphabetically works great, except that 2.1.4.10
TAG : ruby-on-rails
Date : November 16 2020, 09:01 AM , By : Melisa Perez
Ruby - Merge two arrays and remove values that have duplicate
Ruby - Merge two arrays and remove values that have duplicate
like below fixes the issue I have two arrays , You can do the following!
TAG : ruby-on-rails
Date : November 15 2020, 09:01 AM , By : salRoid
Rails 4 - Using PUT instead of PATCH for updates
Rails 4 - Using PUT instead of PATCH for updates
fixed the issue. Will look into that further Rails 4 supports both PATCH and PUT requests.You can use optional method flag to specify the desired action. The default action is :post
TAG : ruby-on-rails
Date : November 15 2020, 09:01 AM , By : diana
Rails last day of last week bug?
Rails last day of last week bug?
wish helps you What you are seeing is correct. Note that last_week is an alias of prev_week which takes an optional parameter that defaults to Date.begining_of_week (:monday)Resulting in trying to find the date in the previous week but from the past
TAG : ruby-on-rails
Date : November 15 2020, 09:01 AM , By : Manendra Singh
Mongodb querying for aggregation with count of multiple values
Mongodb querying for aggregation with count of multiple values
This might help you You are largely looking for the $cond operator in order to evaluate conditions and return whether the the particular counter should be incremented or not, but there are also some other aggregation concepts you are missing here:
TAG : ruby-on-rails
Date : November 15 2020, 09:01 AM , By : qwert1515
Bundler throws an error while creating rails new APP
Bundler throws an error while creating rails new APP
it should still fix some issue I Actually found the problem which is Rubygem, I reverted back to 2.4 and it worked fine. The 2.5 was causing this problem. it had nothing to do with bundler or ruby version. Thank you everyone for your help.
TAG : ruby-on-rails
Date : November 15 2020, 09:01 AM , By : Chris Brown
Rails 4 - Devise: getting ActionController::UnknownFormat on signup
Rails 4 - Devise: getting ActionController::UnknownFormat on signup
it helps some times I have a Rails 4.2.3 app where I use Devise for user authentication. I present my signup form in a Bootstrap modal. I have implemented it similar to: https://github.com/plataformatec/devise/wiki/How-To:-Display-a-custom-sign_in-fo
TAG : ruby-on-rails
Date : November 14 2020, 07:01 AM , By : Jerry Lin
activeadmin: link_to in a helper does not appear in view
activeadmin: link_to in a helper does not appear in view
I wish this help you I've got a helper that I'm using for rendering new fields dynamically in my ActiveAdmin form. , Resolved it by throwing out the template.
TAG : ruby-on-rails
Date : November 14 2020, 07:01 AM , By : Htan
Virtual model attribute which links to a record from associated model
Virtual model attribute which links to a record from associated model
seems to work fine Suppose I have Person model which has has_many association with PhoneNumber model. Each person has several phone numbers and one of them is always set as primary number for the person. I implemented this by adding primary boolean c
TAG : ruby-on-rails
Date : November 14 2020, 06:58 AM , By : Ian Avera
Travis CI cant resolve association in rails
Travis CI cant resolve association in rails
With these it helps It looks like a migration issue. The database against which your tests are running by Travis CI, does not have the request_id for the BorrowRequest model. That's why you got that error. But it works locally because you ran the mig
TAG : ruby-on-rails
Date : November 13 2020, 09:01 AM , By : Mark Alexander
How to add a custom route, controller, and action in Ruby on Rails?
How to add a custom route, controller, and action in Ruby on Rails?
hope this fix your issue I have a Ruby on Rails and ActiveAdmin application. I didn't basically change any default configuration except adding and registering a few models. , routes.rb:
TAG : ruby-on-rails
Date : November 13 2020, 09:01 AM , By : Cesar de Leon
Rails 4 session is not updated between requests
Rails 4 session is not updated between requests
hop of those help? After talking to the flash creator, I think I got an answer. The requests are asynchronous, that means a request won't wait for a response => the cookie won't be updated => the session (that uses the cookie store) won't be updated
TAG : ruby-on-rails
Date : November 13 2020, 09:01 AM , By : SamsaraSoup
Input number multiplies as a string instead of number - Rails 4
Input number multiplies as a string instead of number - Rails 4
wish helps you You are on the right track, you first need to cast the string value to an float or integer to do calculation with it. If the String is 12 it probably makes more sense to cast it to an integer:
TAG : ruby-on-rails
Date : November 13 2020, 05:43 AM , By : charaf mohammed
Get enqueued_at inside scheduled Sidekiq job?
Get enqueued_at inside scheduled Sidekiq job?
With these it helps I have scheduled a job , If you want some data inside a Worker, you pass it in as an argument:
TAG : ruby-on-rails
Date : November 13 2020, 05:43 AM , By : Evgenyi Artamonov
Update args of a scheduled job
Update args of a scheduled job
With these it helps Well update the task is not the way achieving it cancel job and create new with new args:
TAG : ruby-on-rails
Date : November 13 2020, 05:43 AM , By : Chris D.
Ruby on Rails, SQL Server order by and comparison
Ruby on Rails, SQL Server order by and comparison
it helps some times You need to be very precise when joining tables and especially with table names not following Rails`conventions.I think the following should work:
TAG : ruby-on-rails
Date : November 13 2020, 05:43 AM , By : Tahir Khan
Devise Model unable to Work
Devise Model unable to Work
around this issue You need to initialize the Access model in your controller's action like :
TAG : ruby-on-rails
Date : November 13 2020, 05:43 AM , By : Willian Xavier
Switching Heroku app to server in other region
Switching Heroku app to server in other region
should help you out The cause of the problem proofed to be that I hadn't yet added the environment variables for myapp-eu at herokuapp.com. Doing so solved it.
TAG : ruby-on-rails
Date : November 13 2020, 05:40 AM , By : Isabella Fontes
Controller action for link shortening
Controller action for link shortening
I hope this helps . This is what my Link model looks like. , You could go about it like this:
TAG : ruby-on-rails
Date : November 13 2020, 05:40 AM , By : Henry Johnson
Finding objects that are not associated in has_many_through
Finding objects that are not associated in has_many_through
will be helpful for those in need I have simple classes like these: , You could add scope with an LEFT JOIN to your model:
TAG : ruby-on-rails
Date : November 13 2020, 05:40 AM , By : Albert Drudis
Ruby on Rails, SQL Server Query
Ruby on Rails, SQL Server Query
I think the issue was by ths following , I am having trouble with the following queries. I am not sure why. , You need to add the table name to the query:
TAG : ruby-on-rails
Date : November 12 2020, 09:01 AM , By : Ali Jouili
Issues with Createing a form update button from a controller method in Rails 4
Issues with Createing a form update button from a controller method in Rails 4
will help you The link_to helper will make a GET request unless a method is specified.So, you need to specify the method (method: :patch) in your link_to:
TAG : ruby-on-rails
Date : November 11 2020, 09:01 AM , By : lala
`<module:Rails>': superclass mismatch for class Server (TypeError)
`<module:Rails>': superclass mismatch for class Server (TypeError)
I wish this help you I have seen this and several others question, but their problems are not similar to mine. , A better way to do what you want:
TAG : ruby-on-rails
Date : November 11 2020, 09:01 AM , By : José Lourenço
Do I need a model to insert through IRB?
Do I need a model to insert through IRB?
I wish this help you yes error is due to not having a Department class or model. You can just create a department.rb and inherited from active record in your app/models directory with your favourite editor. for example with vim you can do
TAG : ruby-on-rails
Date : November 11 2020, 09:01 AM , By : Marcus Smith
Items controller index method executes twice losing local or instance variable settings
Items controller index method executes twice losing local or instance variable settings
may help you . Update: I have posted this to github jquery-datatables-rails as it appears to be an issue with that gem or, more likely, my use of it. I am posting the updated copy here as well with more of a description to ask for help. Note that, wh
TAG : ruby-on-rails
Date : November 10 2020, 09:01 AM , By : Danny Vickers
Why submitting an invalid post breaks a micropost feed (Railstutorial chapter 11)?
Why submitting an invalid post breaks a micropost feed (Railstutorial chapter 11)?
With these it helps Because then @feed_items will be nil and when you call: @feed_items.any? in your view, that will be nil.any? and that will fail with this error message:
TAG : ruby-on-rails
Date : November 10 2020, 09:01 AM , By : Jakub Kiele
Persist radio_button value on form_tag submit get method
Persist radio_button value on form_tag submit get method
To fix this issue You want to do this sort of thing. For example, with the all option...
TAG : ruby-on-rails
Date : November 10 2020, 09:01 AM , By : yus martinov
The method to redirect from one page to other on ruby on rails
The method to redirect from one page to other on ruby on rails
it fixes the issue mailbox_inbox_path is not a variable. It's a route helper method generated by Rails based on your routes definition in your routes.rb file. Do a:
TAG : ruby-on-rails
Date : November 10 2020, 09:01 AM , By : Devid Chilli
How to add an additional View to generated Scaffold and adding an action to it
How to add an additional View to generated Scaffold and adding an action to it
help you fix your problem You can use try here.Change:
TAG : ruby-on-rails
Date : November 10 2020, 09:01 AM , By : Betotrebla
Rails 4 - Custom validation method not being called
Rails 4 - Custom validation method not being called
may help you . I have a validation method that should validate whether an user is part of a team. If it is not part of the team it should add an error and thus failing to save the record. , Use create or update as the value of :on option.Change this:
TAG : ruby-on-rails
Date : November 09 2020, 09:01 AM , By : chamborruno

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