When customizing CONSUL, one of the most common actions is adding a new
field to a form.
This requires modifying the permitted/allowed parameters. However, in
most cases, the method returning these parameters returned an instance
of `ActionController::Parameters`, so adding more parameters to it
wasn't easy.
So customizing the code required copying the method returning those
parameters and adding the new ones. For example:
```
def something_params
params.require(:something).permit(
:one_consul_attribute,
:another_consul_attribute,
:my_custom_attribute
)
end
```
This meant that, if the `something_params` method changed in CONSUL, the
customization of this method had to be updated as well.
So we're extracting the logic returning the parameters to a method which
returns an array. Now this code can be customized without copying the
original method:
```
alias_method :consul_allowed_params, :allowed_params
def allowed_params
consul_allowed_params + [:my_custom_attribute]
end
```
46 lines
893 B
Ruby
46 lines
893 B
Ruby
class Admin::Poll::Questions::Answers::ImagesController < Admin::Poll::BaseController
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include ImageAttributes
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before_action :load_answer, except: :destroy
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def index
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end
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def new
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end
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def create
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@answer.attributes = images_params
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if @answer.save
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redirect_to admin_answer_images_path(@answer),
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notice: t("flash.actions.create.poll_question_answer_image")
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else
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render :new
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end
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end
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def destroy
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@image = ::Image.find(params[:id])
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@image.destroy!
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respond_to do |format|
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format.js { render layout: false }
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end
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end
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private
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def images_params
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params.require(:poll_question_answer).permit(allowed_params)
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end
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def allowed_params
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[:answer_id, images_attributes: image_attributes]
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end
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def load_answer
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@answer = ::Poll::Question::Answer.find(params[:answer_id])
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end
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end
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