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mastodon
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mastodon/app/controllers/api/v1/trends/links_controller.rb

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# frozen_string_literal: true
class Api::V1::Trends::LinksController < Api::BaseController
before_action :set_links
after_action :insert_pagination_headers
DEFAULT_LINKS_LIMIT = 10
def index
render json: @links, each_serializer: REST::Trends::LinkSerializer
end
private
def enabled?
Setting.trends
end
def set_links
@links = if enabled?
links_from_trends.offset(offset_param).limit(limit_param(DEFAULT_LINKS_LIMIT))
else
[]
end
end
def links_from_trends
scope = Trends.links.query.allowed.in_locale(content_locale)
scope = scope.filtered_for(current_account) if user_signed_in?
scope
end
def insert_pagination_headers
set_pagination_headers(next_path, prev_path)
end
def pagination_params(core_params)
params.slice(:limit).permit(:limit).merge(core_params)
end
def next_path
api_v1_trends_links_url pagination_params(offset: offset_param + limit_param(DEFAULT_LINKS_LIMIT)) if records_continue?
end
def prev_path
api_v1_trends_links_url pagination_params(offset: offset_param - limit_param(DEFAULT_LINKS_LIMIT)) if offset_param > limit_param(DEFAULT_LINKS_LIMIT)
end
def records_continue?
@links.size == limit_param(DEFAULT_LINKS_LIMIT)
end
def offset_param
params[:offset].to_i
end
end