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RUBY-ON-RAILS QUESTIONS

Why all the Active Record hate?
Why all the Active Record hate?
I hope this helps you . There's ActiveRecord the Design Pattern and ActiveRecord the Rails ORM Library, and there's also a ton of knock-offs for .NET, and other languages.These are all different things. They mostly follow that design pattern, but ext
TAG : ruby-on-rails
Date : January 25 2021, 07:01 AM , By : CodeOfficer
Learning Ruby on Rails any good for Grails?
Learning Ruby on Rails any good for Grails?
I wish did fix the issue. Mmh, I don't know how to say this. Some people might bash me over this. Language (Groovy and Ruby)
TAG : ruby-on-rails
Date : January 22 2021, 07:05 PM , By : ziqew
Ruby On Rails with Windows Vista - Best Setup?
Ruby On Rails with Windows Vista - Best Setup?
this will help I don't know about "best", because that's a subjective question, but I can tell you what setup I use and recommend:Editor: E Text Editor
TAG : ruby-on-rails
Date : January 22 2021, 02:12 PM , By : littlefuzz
Caching external images with Rails fragment caching
Caching external images with Rails fragment caching
like below fixes the issue I don't know how your championship partial looks like, but I would expect, that there is something like this for images:
TAG : ruby-on-rails
Date : January 12 2021, 07:00 PM , By : user150744
Suppress password change email when accepting invitation with Devise Invitable
Suppress password change email when accepting invitation with Devise Invitable
this one helps. I have enabled password change notifications using , OK, figured this out. Add the following to app/models/user.rb
TAG : ruby-on-rails
Date : January 12 2021, 08:33 AM , By : Goeran
redirect status 301 is not working on heroku
redirect status 301 is not working on heroku
wish of those help It turned out that it was due to this statement in the config/routes.rb file
TAG : ruby-on-rails
Date : January 11 2021, 05:14 PM , By : mtnmuncher
How to add foreign key in migration where reference table has no id column
How to add foreign key in migration where reference table has no id column
This might help you You should be able to use primary_key option in your foreign key migration, it defaults to column id and that is the reason, why you are getting an error:
TAG : ruby-on-rails
Date : January 11 2021, 03:34 PM , By : Cesar Sanz
Why 'activerecord-import' doesn't perform bulk insert?
Why 'activerecord-import' doesn't perform bulk insert?
around this issue So, currently, i've found a bit modified 3rd party solution https://gist.github.com/abratashov/155bcd0ea2e02940cc6157e6970e7a2bIt creates the batches(with 1000 by default) and performs a huge BULK INSERT.
TAG : ruby-on-rails
Date : January 11 2021, 03:28 PM , By : Lee KW
Setting environment variables in ubuntu production server and Rails
Setting environment variables in ubuntu production server and Rails
Does that help With Capistrano, have you set your .env in your shared folder?config/deploy.rb:
TAG : ruby-on-rails
Date : January 11 2021, 03:28 PM , By : christiandsg
rails belongs_to optional but check exists if passed
rails belongs_to optional but check exists if passed
Does that help Unfortunately, with optional option it turns off presence validation for your record, but you can add custom validation in your model:
TAG : ruby-on-rails
Date : January 11 2021, 03:26 PM , By : 3NZ0
How are parameters sent when I use instance variables in form_for in rails
How are parameters sent when I use instance variables in form_for in rails
hope this fix your issue The form_for helper creates a form from a model object. If you've set up your Rails app in the conventional way, you will have (it appears) a file called app/models/missed_call_flow.rb that begins by defining class MissedCall
TAG : ruby-on-rails
Date : January 10 2021, 02:06 PM , By : PaulPlum
Deploying a Rails App to Multiple Servers using Capistrano - Best Practices
Deploying a Rails App to Multiple Servers using Capistrano - Best Practices
Hope this helps I have a rails application that I need to deploy to 3 servers - machine1.com, machine2.com and machine3.com. I want to be able to deploy it to all machines at once and each machine individually. Can someone help me out with a skeleton
TAG : ruby-on-rails
Date : January 10 2021, 01:49 PM , By : Ben Kohn
Rails Model Relationship: Has one but also belongs to many
Rails Model Relationship: Has one but also belongs to many
This might help you I have two Models, Modela and Modelb. , It should be:
TAG : ruby-on-rails
Date : January 10 2021, 01:49 PM , By : pdkent
How to override a render to create a custom "render :my_format => argument" in rails 2.3(.5)?
How to override a render to create a custom "render :my_format => argument" in rails 2.3(.5)?
like below fixes the issue From railsapi.com:
TAG : ruby-on-rails
Date : January 10 2021, 01:49 PM , By : MJRider
What happened to Builder::XmlMarkup in Rails 3?
What happened to Builder::XmlMarkup in Rails 3?
this one helps. I'm struggling with the atom_feed method in a RoR 3 project. The method complains about an
TAG : ruby-on-rails
Date : January 10 2021, 01:47 PM , By : Harvey
Rails 3 Beta 2, Haml, Nested Layouts and LocalJumpError
Rails 3 Beta 2, Haml, Nested Layouts and LocalJumpError
fixed the issue. Will look into that further Alright, I'm trying to create an app with nested templates. I'm using Rails 3 Beta 2 and Haml. I've poked around and I've decided to take the clearest approach and have structured my templates like so: , g
TAG : ruby-on-rails
Date : January 10 2021, 01:47 PM , By : mitry
Rails Layout name inside view
Rails Layout name inside view
To fix this issue How can I print out the name of current layout in a view? , This works with Rails 3.0.7:
TAG : ruby-on-rails
Date : January 10 2021, 01:47 PM , By : turret
split html text in 2 paragraphs
split html text in 2 paragraphs
I wish this help you You could use simple_format for this, assuming your text is formatted correctly. Your link text should end inside the paragraph, not on the next one, so I've modified it slightly:
TAG : ruby-on-rails
Date : January 10 2021, 01:45 PM , By : Thomas Gueze
Pass variable from Devise controller to custom mailer?
Pass variable from Devise controller to custom mailer?
wish of those help First, read about Devise custom mailer to familiarize yourself with the process.Briefly this is how you'd go about doing it:
TAG : ruby-on-rails
Date : January 09 2021, 05:38 AM , By : Manu
How to pass formdata in swagger with require ruby on rails
How to pass formdata in swagger with require ruby on rails
seems to work fine You API expects your data to be wrapped into user parameter. However, according to your schema, you're sending just profile_image. You should either remove require(:user) from your update_params method or rewrite swagger schema in
TAG : ruby-on-rails
Date : January 08 2021, 10:52 AM , By : Brian Drum
How can i resolve this- rake:aborted! Mysql2::Error: Access denied for user 'root'@'localhost' (using password: NO)
How can i resolve this- rake:aborted! Mysql2::Error: Access denied for user 'root'@'localhost' (using password: NO)
Does that help If database.yml isn't working , then maybe u should check for a .env file . Some things you can do to make sure that the database.yml file is coorect - following is what a default syntax looks like
TAG : ruby-on-rails
Date : January 07 2021, 03:08 PM , By : besn
random ActionController::InvalidAuthenticityToken in my rails app
random ActionController::InvalidAuthenticityToken in my rails app
I hope this helps you . A CSRF token will expire when a Rails session expire (except for some configurations).Here is a scenario raising this error :
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Bo.
How to determine which controller has been called from ApplicationController?
How to determine which controller has been called from ApplicationController?
I wish did fix the issue. Presuming you meant || instead of in your question's pseudo code ( makes no sense), this would work:
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : John Q.
Parameterize an ActiveRecord #joins method
Parameterize an ActiveRecord #joins method
around this issue arel "A Relational Algebra" is the underlying query assembler for Rails and can be used to construct queries, conditions, joins, CTEs, etc. that are not high level supported in Rails. Since this library is an integral part of Rails
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Ohad Barzilay
Why the redis returning more values instead of count?
Why the redis returning more values instead of count?
I hope this helps you . The documented meaning of COUNT is that it's a hint as to how much work to do on the HSCAN call, it's not a strict number of elements to return.
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Tonix
Is this ruby(rails) code readable simply?
Is this ruby(rails) code readable simply?
Any of those help The 2nd version is easier to read. Here's a few other things that might help Putting the current time in a variable so you're calling 1.month.from_now, and your min and sec arguments using the same time Putting the time adjustments
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Paul McKee
Can I see what SQL an ActiveRecord .save call would generate, without doing the save?
Can I see what SQL an ActiveRecord .save call would generate, without doing the save?
wish help you to fix your issue @jrochkind, If we check the API for .save here then it just calls create_or_update method. So ideally, such methods returning boolean values will not generate queries using to_sql.Also, I think similar topic is covered
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : yogan
Time.current.tap{|t| t.change hour: 10 } is not working in Rails 4.2
Time.current.tap{|t| t.change hour: 10 } is not working in Rails 4.2
Does that help change returns a new time object, so this value is ignored by tap. You can use tap's brother, yield_self (ruby 2.5+)
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : bdurbin
Write active decorator DRY
Write active decorator DRY
help you fix your problem I don't use active_decorator, but I think I would be tempted to create a DatetimeDecorator, something like:
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : mediafarm
Creating 2 Models in Controller Action With Transaction - Rails 4
Creating 2 Models in Controller Action With Transaction - Rails 4
To fix the issue you can do It seems like this is a great opportunity to use a Service Object: https://www.engineyard.com/blog/keeping-your-rails-controllers-dry-with-services .This pattern is very useful for keeping Model and Controllers clean, and
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Jesenko Mehmedbasic
How do I display the text with all of the tabs and new lines (\t and \n) in Ruby on Rails?
How do I display the text with all of the tabs and new lines (\t and \n) in Ruby on Rails?
I hope this helps . Use the HTML tag.
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : mlapida
Why my Module is not being loaded in Rails?
Why my Module is not being loaded in Rails?
To fix this issue I have an application that runs perfectly on my OSX environment. Now Im creating a Ubuntu env from scratch and having a weird class loading issue on my Rails application. , Inside my app/models/MDMS.rb I have
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : wraith
how to retrieve data from the database using the has_many association
how to retrieve data from the database using the has_many association
should help you out I believe what you need is has_many ... :throughapp/models/user.rb
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : user158220
Out of ranger error, Type::Integer during rspec test
Out of ranger error, Type::Integer during rspec test
wish helps you In a 4byte INT field you can store up to a 2147483647 integer.7554736346861994060 is way bigger than 2147483647 thus, it takes more than 4bytes.
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Zelos
Generate a video from many images using RMagick in RoR
Generate a video from many images using RMagick in RoR
fixed the issue. Will look into that further Rmagick doesn't support video formats. You can generate a gif using the ImageList class with some time between each image. Here you can find a lot of good examples. Alternatively if you really need an AVI
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : jumpingmattflash
Calling an overriden scope from an included concern in the overriding scope
Calling an overriden scope from an included concern in the overriding scope
Any of those help When you use included inside MyConcern, it happens after "include YourModule" is called on a class. But doesn't change anything on MyConcern. If you want to have a superclass method, try
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : user126922
ActionController::UnknownFormat on Bugsnag
ActionController::UnknownFormat on Bugsnag
it fixes the issue We got this error on our staging site yesterday and the error is ActionController::UnknownFormat and it happened at users/sessionsnew. Here's the request that Bugsnag shows: , Are we getting attacked by a malicious person?
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Naveen
How do I pass a person object into a related Post model object
How do I pass a person object into a related Post model object
Hope this helps You can do achieve this in multiple ways as per your need.if you want to achieve if the user is already signed in you can do as follows:
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : user92243
rubocop cannot load such file -- rubocop-rails
rubocop cannot load such file -- rubocop-rails
wish helps you Seems like you have something like: require: rubocop-rails somewhere in your rubocop configuration files chain. But you have not included gem 'rubocop-rails' in your gemfile.Please include gem 'rubocop-rails' in your gemfile and this s
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Vlad Sirenko
Malicious Bots waking up heroku free app and using up all dyno hours
Malicious Bots waking up heroku free app and using up all dyno hours
like below fixes the issue You should consider to use RackAttack https://github.com/kickstarter/rack-attackIt's a middleware that allows you to block/allow a request. For example, if they are using the same email domain for each new registration, you
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Zelos
How to do RSpec of validators?
How to do RSpec of validators?
hop of those help? I have created a validator file and written the validation of the model in that validator file and, I want to do Rspec of that validator for each attribute how can I do? , I made the solution to my problem. for the help.
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : user105769
Is there a way to wrap the response of all controller methods in a json object in application_controller.rb?
Is there a way to wrap the response of all controller methods in a json object in application_controller.rb?
This might help you Option-1: We have something similar in our setup, what we do is, that we have a method named render_response in our base_api_controller file. Which looks something like:
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Alpinfish
Need to implement #cache! if you want to use Cloudinary::CarrierWave::Storage as a cache storage
Need to implement #cache! if you want to use Cloudinary::CarrierWave::Storage as a cache storage
I wish this help you Added config.cache_storage = :file to carrierwave initializer and the error is gone.
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : moss
How to integrate custom bootstrap theme in activeadmin
How to integrate custom bootstrap theme in activeadmin
help you fix your problem I think you can try already build themes which are only for active-admin rails by this you can achieve great UI for active-admin. These are easy to implement, just go through this link https://github.com/activeadmin/activead
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Alex Sadzawka
How can I load an STI record using just the base STI class?
How can I load an STI record using just the base STI class?
Hope that helps Say I have models using STI like so:
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : JulianCT
Getting the .each loop result with the lowest number from json
Getting the .each loop result with the lowest number from json
Hope that helps You can use Enumerablemin_by:
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Dave M
When and where to aggregate or perform calculations on data in RESTful Rails API
When and where to aggregate or perform calculations on data in RESTful Rails API
I wish this helpful for you This is a pretty broad design question so I'm just going to give a list of general pointers to think about: A major component of RESTful web service design is picking the right resources, which do not need to correspond di
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Sigfrieg
How do you write a conditional ternary operator inline in Ruby on Rails?
How do you write a conditional ternary operator inline in Ruby on Rails?
fixed the issue. Will look into that further I am trying to compare 2 values and change the color of one when the condition holds true. But I also have a search-bar and I could not access the tag values when it is wrapped in an statement in my javasc
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Nandor Devai
Why put require statement at the end of a ruby file?
Why put require statement at the end of a ruby file?
will be helpful for those in need Ruby code is not compiled, it’s being processed [mostly] as it comes to the parser. That said, the following two pieces of code are not equivalent:
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Daljit Dhadwal
In Rails, is it possible to display an alert without calling redirect_to or render?
In Rails, is it possible to display an alert without calling redirect_to or render?
wish helps you I have a form: , You should use remote: true in your form.
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Chris Hanley
Convert hash of hash in array of hash
Convert hash of hash in array of hash
hop of those help? You could map with Enumerablemap to hash values merging (Hashmerge) the new pairs:
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Alex
Rails 5 tries to save the empty string as nil
Rails 5 tries to save the empty string as nil
seems to work fine One solution would be to use before_save
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : kiirpi
websocket-driver was not found on deploy
websocket-driver was not found on deploy
With these it helps For some reason version 0.7.2 of websocket-driver is not published on NPM, though it does exist on GitHub.I suggest you upgrade to 0.7.3 (or whatever the latest version is when you read this) and redeploy:
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Rb.Ridge
Dangerous query method deprecation warning on Rails 5.2.3
Dangerous query method deprecation warning on Rails 5.2.3
will help you This is intended behavior, you linked to right discussion and that is exactly what it is. I can re-elaborate it a bit more though so it is easy to understand.First, re-explaining sql injection, just for reference, doing this:
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Marcos de Carvalho
Using ERB in Markdown with Redcarpet
Using ERB in Markdown with Redcarpet
this will help In this case, source would be passed to the call by ActionView when the handler is called.You would rewrite your call function like that:
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Grant
How to create list of unique array items from thousands of records in Rails?
How to create list of unique array items from thousands of records in Rails?
I wish this helpful for you So you are going to have to unfold that column into values (as a subquery) then select the distinct values from there. I am not all the familiar with this but possibly something like
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : davidg
Undefined method 'suspend_paypal' for User
Undefined method 'suspend_paypal' for User
Any of those help You have defined suspend_paypal on the Subscription model, but you're trying to call it on user. Get the subscription instead and call the method:
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Adam Hill
Any good methods to find Ruby on Rails memory leak?
Any good methods to find Ruby on Rails memory leak?
should help you out You could also try these tools to analyze your application at an extensive level.
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : semicolonth
Why does if __FILE__ == $0 not work on Heroku with Rails 5.2?
Why does if __FILE__ == $0 not work on Heroku with Rails 5.2?
hope this fix your issue My team ran into this problem when upgrading our app to Rails 5.2 too. We don't use Heroku, so this is an issue with Rails in general instead of Heroku.When running any Ruby file with rails runner, we found that __FILE would
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Derek
Rails: How to implement login and authentication where i have five different user models in rails?
Rails: How to implement login and authentication where i have five different user models in rails?
it should still fix some issue Do not create multiple models for different kinds of users. This is almost always not what you want. Instead add a column called role of the type enum which contains all of the kinds of roles you want to add like Sergio
TAG : ruby-on-rails
Date : January 02 2021, 06:48 AM , By : Yst

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