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Undefined method 'to_key' error using form_for


Undefined method 'to_key' error using form_for

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Undefined method 'to_key' error using form_for
Tag : ruby-on-rails , By : kaart
Date : December 01 2020, 05:00 PM

it should still fix some issue As per your code, index is returning a collection. However your view tries to define a form for it. This is unlikely going to be succeed.
Form is for an object, not for collections. 
def new 
  @table = Table.new
end

<%= form_for @table do |f| %>
  ...
<% end %>

def index
  @table = Table.new
end

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Tags :

Undefined method to_key error using form_for , mongomapper , rails3 edge: undefined method `to_key on form_for , How to solve undefined method `to_key error with simple_form , undefined method `to_key for -- NOT USING MONGO , undefined method for nil nilclass ,

mongomapper, rails3 edge: undefined method `to_key' on form_for

Tag : ruby-on-rails , By : user119985
Date : March 29 2020, 07:55 AM
it fixes the issue I have submitted a patch to MongoMapper here:
http://github.com/fredwu/mongomapper/commit/6e5e531312ef98c30e33286a1f80dd000468ed07

undefined method `to_key' for -- NOT USING MONGO

Tag : ruby-on-rails , By : Ivan Belov
Date : March 29 2020, 07:55 AM
wish of those help You should never be assigning an instance variable to point to a class object like this. You probably want this:
def donations_by_season
  @donations = Donation.all
end

Error undefined method `to_key' for [xxx] :Array when trying to use array data on Active Admin table_for (Rails, Postgre

Tag : ruby-on-rails , By : Mighty Mac
Date : March 29 2020, 07:55 AM
I hope this helps . I just opened a pull request to add this functionality: https://github.com/gregbell/active_admin/pull/2812
Which lets you use arbitrary data in a table, like this:
table_for foo: 1, bar: 2 do
  column :foo
  column :bar
end

gem 'activeadmin', github: 'seanlinsley/active_admin',
                   branch: 'feature/1713-support_arbitrary_objects_for_tables'

gem 'activeadmin', github: 'gregbell/active_admin'

Rails 4 undefined method 'to_key'

Tag : ruby-on-rails , By : eusden
Date : March 29 2020, 07:55 AM
Any of those help I am trying to update the attributes of an existing client in postgresql. I want to search for a client name, then store that info in a cookie and redirect to the form. If I use , Try this:
client = Client.find(1)

client = Client.find_by(id: 1)

c = Client.where(id: 1).first

How to solve undefined method `to_key' error with simple_form

Tag : ruby-on-rails , By : Dean
Date : March 29 2020, 07:55 AM
I wish this help you It looks like you need to custom your form url. You have to do this:
route.rb
namespace :students do
  root to: "dashboard#show"
  get 'course-queries-details', to: 'dashboard#course_queries_details'
  post 'save-course-queries-details', as: 'save_course_queries_details', to: 'dashboard#save_course_queries_details'
  resources :students
end

<%= simple_form_for @course_query, :url => students_save_course_queries_details_path, :method => :post %>
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