CODEWITHSUNDEEP
ruby-on-railsactiveadminformtastic
Nikita
Nikita

Reputation: 155

How to solve Formtastic input error in Active Admin when creating a new entry in model

When wanting to make a new entry to a model in Active Admin, I click on the action button "Create new New Employer". I then get this error message:

Formtastic::UnknownInputError in Admin::Employers#new

Unable to find input class BinaryInput

@input_class_finder.find(as)
  rescue Formtastic::InputClassFinder::NotFoundError
    raise Formtastic::UnknownInputError, "Unable to find input #{$!.message}"
  end

  # @api private

Upvotes: 1

Views: 2436

Answers (4)

Dan
Dan

Reputation: 54

I came into this problem and didn't like the StringInput solution because it is a single line and can't handle line breaks. You can similarly fix this by 

# ./app/inputs/binary_input.rb
class BinaryInput < Formtastic::Inputs::TextInput
end

As seen with in this image https://i.sstatic.net/RHRex.png

Upvotes: 0

jedi
jedi

Reputation: 2198

I had the same problem editing a User resource which, when created by Devise, has

t.inet "current_sign_in_ip"

column type.

If you are fine to change the data type from inet to string simply generate a migration:

rails g migration ChangeDatabaseColumnTypeForIpAddressesInUsers

class ChangeDatabaseColumnTypeForIpAddressesInUsers < ActiveRecord::Migration[5.2]
  def change
    change_column :users, :current_sign_in_ip, :string
    change_column :users, :last_sign_in_ip, :string
  end
end

Upvotes: 2

Shiva
Shiva

Reputation: 12514

Workaround

This worked for me: create a file below and it will solve the error.

# app/inputs/inet_input.rb
class InetInput < Formtastic::Inputs::StringInput
end

In this case replace inet with BinaryInput

Reason

The possible problem is, Formtastic is unable to map the column type to HTML input types.

this solution is tested with formtastic (~> 3.1)

Upvotes: 2

Fivell
Fivell

Reputation: 11929

@Nikita, first of all please read the docs https://github.com/activeadmin/activeadmin/tree/68d50d4221976df9d42e5d670b0877770ca8eeef/docs this will answer on most of your questions.

ActiveAdmin by default renders all the columns of your database table to display the form and is not able to show this particular one because there is no option to handle binary column( check, there is a binary typed column in your employers table)

so there are 2 options

1) override you form declaration how it described here https://github.com/activeadmin/activeadmin/blob/68d50d4221976df9d42e5d670b0877770ca8eeef/docs/5-forms.md

and use as: :string options for your column if you need to display it at all.

2) it is possible also to create custom input to do this add initializer with such source that may not be your case.

 class BinaryInput < Formtastic::Inputs::StringInput

 end

Upvotes: 2

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