* Replace incorrect use of distinct with group Some uses of ActiveRecord::QueryMethods#distinct pass field names but they are incorrect for the current version of Rails. ActiveRecord::QueryMethods#group provides the expected behavior and benefits performance. See commit 6da24aad4cafdef8d8a2c92bac2002a5fc2fe9c8. * Introduce ApplicationController#cache_collection_paginated_by_id ApplicationController#cache_collection_paginated_by_id fuses ApplicationController#cache_collection and Paginable.paginate_by_id. An advantage of this method is that it prevents from modifying scope which Paginable.paginate_by_id may provide. ApplicationController#cache_collection always return an array and there is no possibility of the scope modification. It is also clear for a programmer, considering the implication of "cache". This method can also emit more efficient queries by using Cacheable.cache_ids before calling Paginable.paginate_by_id.
		
			
				
	
	
		
			68 lines
		
	
	
	
		
			1.6 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			68 lines
		
	
	
	
		
			1.6 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # frozen_string_literal: true
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| 
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| class Api::V1::Timelines::PublicController < Api::BaseController
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|   before_action :require_user!, only: [:show], if: :require_auth?
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|   after_action :insert_pagination_headers, unless: -> { @statuses.empty? }
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| 
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|   def show
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|     @statuses = load_statuses
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|     render json: @statuses, each_serializer: REST::StatusSerializer, relationships: StatusRelationshipsPresenter.new(@statuses, current_user&.account_id)
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|   end
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| 
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|   private
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| 
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|   def require_auth?
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|     !Setting.timeline_preview
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|   end
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| 
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|   def load_statuses
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|     cached_public_statuses_page
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|   end
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| 
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|   def cached_public_statuses_page
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|     cache_collection_paginated_by_id(
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|       public_statuses,
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|       Status,
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|       limit_param(DEFAULT_STATUSES_LIMIT),
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|       params_slice(:max_id, :since_id, :min_id)
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|     )
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|   end
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| 
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|   def public_statuses
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|     statuses = public_timeline_statuses
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| 
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|     if truthy_param?(:only_media)
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|       statuses.joins(:media_attachments).group(:id)
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|     else
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|       statuses
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|     end
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|   end
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| 
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|   def public_timeline_statuses
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|     Status.as_public_timeline(current_account, truthy_param?(:remote) ? :remote : truthy_param?(:local))
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|   end
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| 
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|   def insert_pagination_headers
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|     set_pagination_headers(next_path, prev_path)
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|   end
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| 
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|   def pagination_params(core_params)
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|     params.slice(:local, :remote, :limit, :only_media).permit(:local, :remote, :limit, :only_media).merge(core_params)
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|   end
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| 
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|   def next_path
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|     api_v1_timelines_public_url pagination_params(max_id: pagination_max_id)
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|   end
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| 
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|   def prev_path
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|     api_v1_timelines_public_url pagination_params(min_id: pagination_since_id)
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|   end
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| 
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|   def pagination_max_id
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|     @statuses.last.id
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|   end
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| 
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|   def pagination_since_id
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|     @statuses.first.id
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|   end
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| end
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