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Overriding a route allows you to change or completely replace a Forest’s route behavior.

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Changing Forest’s behavior

To achieve this, use existing snippets of default routes and modify them according to your needs. Here are a few examples:

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Use extended search by default

if ForestLiana::UserSpace.const_defined?('CompanyController')
  ForestLiana::UserSpace::CompanyController.class_eval do
    alias_method :default_index, :index
    alias_method :default_count, :count

    # Get a list of Companies
    def index
      params['searchExtended'] = '1'
      default_index
    end

    # Get a number of Companies
    def count
      params['searchExtended'] = '1'
      default_count
    end
  end
end
With this snippet, only the companies collection would use extended search by default.
Using extended search is less performant than default search. Use this wisely.

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Protect a specific record

if ForestLiana::UserSpace.const_defined?('CompanyController')
  ForestLiana::UserSpace::CompanyController.class_eval do
    alias_method :default_destroy, :destroy
    def destroy
      if params["id"] == "50"
        render status: 403, plain: 'This record is protected, you cannot remove it.'
      else
        default_destroy
      end
    end
  end
end

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Replacing Forest’s behavior

To achieve this, simply remove the next() statement of any route: 
if ForestLiana::UserSpace.const_defined?('CompanyController')
  ForestLiana::UserSpace::CompanyController.class_eval do
    # Create a Company
    def create
      # >> Add your own logic here <<
    end
  end
end
For instance, if you have a Users collection, you might want to create your users via your own api: 
require 'net/http'
require 'uri'

if ForestLiana::UserSpace.const_defined?('UserController')
  ForestLiana::UserSpace::UserController.class_eval do

    # Create a User
    def create
      forest_authorize!('add', forest_user, @resource)
      begin
        response = Net::HTTP.post URI('https://<your-api>/users'), params.to_json, "Content-Type" => "application/json"
        render serializer: nil, json: render_record_jsonapi(response.body)
      rescue => errors
        render serializer: nil, json: JSONAPI::Serializer.serialize_errors(errors), status: 400
      end
    end
  end
end