11832cc07d
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
```
65 lines
1.4 KiB
Ruby
65 lines
1.4 KiB
Ruby
class TopicsController < ApplicationController
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include CommentableActions
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before_action :load_community
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before_action :load_topic, only: [:show, :edit, :update, :destroy]
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has_orders %w[most_voted newest oldest], only: :show
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skip_authorization_check only: :show
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load_and_authorize_resource except: :show
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def new
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@topic = Topic.new
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end
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def create
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@topic = Topic.new(topic_params.merge(author: current_user, community_id: params[:community_id]))
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if @topic.save
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redirect_to community_path(@community), notice: I18n.t("flash.actions.create.topic")
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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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@commentable = @topic
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@comment_tree = CommentTree.new(@commentable, params[:page], @current_order)
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set_comment_flags(@comment_tree.comments)
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end
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def edit
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end
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def update
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if @topic.update(topic_params)
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redirect_to community_path(@community), notice: t("flash.actions.update.topic")
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else
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render :edit
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end
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end
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def destroy
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@topic.destroy!
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redirect_to community_path(@community), notice: I18n.t("flash.actions.destroy.topic")
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end
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private
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def topic_params
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params.require(:topic).permit(allowed_params)
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end
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def allowed_params
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[:title, :description]
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end
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def load_community
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@community = Community.find(params[:community_id])
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end
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def load_topic
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@topic = Topic.find(params[:id])
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end
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end
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