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GPT on behalf of DHH
ac73267b07
Transfer the C completed-response cache lesson into Rails, keeping authentication, room checks and cookies per request. A persistent read-only SQLite observer detects local and foreign commits and rejects racing admission. Whole-page misses render fresh to avoid stale nested fragments; message ETags reflect token-neutral presentation.
23 lines
878 B
Ruby
23 lines
878 B
Ruby
class Users::SidebarsController < ApplicationController
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DIRECT_PLACEHOLDERS = 20
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around_action :cache_read_response, only: :show
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def show
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visible_memberships = Current.user.memberships.visible
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@direct_memberships = visible_memberships.with_direct_rooms
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@other_memberships = visible_memberships.with_ordered_room.without_direct_rooms
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@direct_placeholder_users = find_direct_placeholder_users
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end
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private
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def find_direct_placeholder_users
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exclude_user_ids = user_ids_already_in_direct_rooms_with_current_user.including(Current.user.id)
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User.active.where.not(id: exclude_user_ids).order(:created_at).limit([ DIRECT_PLACEHOLDERS - exclude_user_ids.count, 0 ].max)
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end
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def user_ids_already_in_direct_rooms_with_current_user
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Membership.where(room_id: Current.user.rooms.directs.pluck(:id)).pluck(:user_id).uniq
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end
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end
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