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
```
37 lines
984 B
Ruby
37 lines
984 B
Ruby
class ProposalNotificationsController < ApplicationController
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load_and_authorize_resource except: [:new]
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def new
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@proposal = Proposal.find(params[:proposal_id])
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@notification = ProposalNotification.new(proposal_id: @proposal.id)
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authorize! :new, @notification
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end
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def create
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@notification = ProposalNotification.new(proposal_notification_params)
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@proposal = Proposal.find(proposal_notification_params[:proposal_id])
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if @notification.save
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@proposal.users_to_notify.each do |user|
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Notification.add(user, @notification)
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end
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redirect_to @notification, notice: I18n.t("flash.actions.create.proposal_notification")
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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 show
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@notification = ProposalNotification.find(params[:id])
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end
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private
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def proposal_notification_params
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params.require(:proposal_notification).permit(allowed_params)
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end
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def allowed_params
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[:title, :body, :proposal_id]
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end
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end
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