ActiveAdmin with has_many problem; undefined method 'new_record?'

ActiveAdmin with has_many problem; undefined method 'new_record?'

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Get a value of object field inside fields_for loop

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formtastic - how to prepopulate a string input with a value

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how to change class of a label for checkboxes in simple_form

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rails ActiveAdmin nested form has_one accepts_attributes_for formtastic issue

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Rails: Formtastic: Select-Boxes without primary blank field

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How to add and remove nested model fields dynamically using Haml and Formtastic

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Customizing field_with_errors

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How to pre-check checkboxes in formtastic

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Is there any way to create a form with formtastic without a model?

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Rails Formtastic: adding "data-" field to option tag

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ruby-on-rails

Using :collection and :include_blank in Formtastic. How to do it?

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How to properly pass collection for input in Formtastic

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Active admin multiple file/image upload with paperclip

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Nested form in activeadmin not saving updates

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