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fa55224163
The single query was producing a tremendously large ActiveRecord allocation. While this isn't nearly as cool as one query, it's still a significant reduction in SQL trips, and now has the bonus of only loading what is actually going to be displayed.
71 lines
2.2 KiB
Ruby
71 lines
2.2 KiB
Ruby
class ConferencesController < ApplicationController
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protect_from_forgery with: :null_session
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before_action :respond_to_options
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load_and_authorize_resource find_by: :short_title, except: :show
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def index
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@current = Conference.where('end_date >= ?', Date.current).reorder(start_date: :asc)
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@antiquated = @conferences - @current
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end
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def show
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# load conference with header content
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@conference = Conference.unscoped.eager_load(
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:splashpage,
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:program,
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:registration_period,
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:contact,
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venue: :commercial
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).find_by(conference_finder_conditions)
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authorize! :show, @conference # TODO: reduce the 10 queries performed here
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splashpage = @conference.splashpage
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if splashpage.include_cfp
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cfps = @conference.program.cfps
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@call_for_events = cfps.find { |call| call.cfp_type == 'events' }
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if @call_for_events.try(:open?)
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@event_types = @conference.event_types.pluck(:title)
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@track_names = @conference.confirmed_tracks.pluck(:name).sort
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end
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@call_for_tracks = cfps.find { |call| call.cfp_type == 'tracks' }
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end
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if splashpage.include_program
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@highlights = @conference.highlighted_events.eager_load(:speakers)
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if splashpage.include_tracks
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@tracks = @conference.confirmed_tracks.eager_load(
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:room
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).order('tracks.name')
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end
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if splashpage.include_booths
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@booths = @conference.confirmed_booths.order('title')
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end
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end
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if splashpage.include_registrations || splashpage.include_tickets
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@tickets = @conference.tickets.order('price_cents')
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end
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if splashpage.include_lodgings
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@lodgings = @conference.lodgings.order('name')
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end
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if splashpage.include_sponsors
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@sponsorship_levels = @conference.sponsorship_levels.eager_load(
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:sponsors
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).order('sponsorship_levels.position ASC', 'sponsors.name')
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end
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end
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private
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def conference_finder_conditions
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if params[:id]
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{ short_title: params[:id] }
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else
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{ custom_domain: request.domain }
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end
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end
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def respond_to_options
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respond_to do |format|
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format.html { head :ok }
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end if request.options?
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end
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end
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