39 lines
739 B
Ruby
39 lines
739 B
Ruby
class StoriesPaginator
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STORIES_PER_PAGE = 25
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def initialize(scope, page, user)
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@scope = scope
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@page = page
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@user = user
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end
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def get
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with_pagination_info @scope.limit(STORIES_PER_PAGE + 1)
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.offset((@page - 1) * STORIES_PER_PAGE)
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.includes(:user, :taggings => :tag)
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end
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private
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def with_pagination_info(scope)
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scope = scope.to_a
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show_more = scope.count > STORIES_PER_PAGE
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scope.pop if show_more
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[cache_votes(scope), show_more]
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end
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def cache_votes(scope)
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if @user
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votes = Vote.votes_by_user_for_stories_hash(@user.id, scope.map(&:id))
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scope.each do |s|
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if votes[s.id]
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s.vote = votes[s.id]
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end
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end
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end
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scope
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end
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end
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