clarion/app/models/conference.rb

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class Conference < ActiveRecord::Base
validates :title, presence: true, uniqueness: true
validates :email, presence: true, format: {with: /\A[^@]+@[^@]+\z/}
validates :description, presence: true
validates :planned_cfp_end_date, presence: true
validates :start_date, presence: true
validates :end_date, presence: true
validate :start_date_is_before_end_date
validate :planned_cfp_end_date_is_before_start_date
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translates :title, :description
has_many :tracks
has_many :halls
has_many :event_types
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has_many :events
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has_many :approved_events,
-> { joins(:proposition).where(propositions: {status: Proposition.statuses[:approved]}) }, class_name: 'Event'
has_many :conflict_counts, through: :events
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has_many :volunteer_teams
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has_many :volunteers
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has_one :call_for_participation, dependent: :destroy
has_many :participants, -> { uniq }, class_name: 'User', through: :events
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has_many :participant_profiles, class_name: 'PersonalProfile'
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has_many :slots, through: :halls
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accepts_nested_attributes_for :tracks, :halls, :event_types, :volunteer_teams,
reject_if: :all_blank, allow_destroy: true
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after_create :create_call_for_participation
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def submissions_grouped_by_day
submissions = events.group('date(events.created_at)').select('date(events.created_at) as created_at, count(events.id) as number')
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submissions.group_by { |s| s.created_at.to_date }
end
def submissions_grouped_by_confirmation_day
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submissions = events.joins(:proposition).approved.confirmed.group('date(propositions.confirmed_at)').select('date(propositions.confirmed_at) as confirmed_at, count(events.id) as number')
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submissions.group_by { |s| s.confirmed_at.to_date }
end
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def update_vote_data!
ConferenceVoteSummary.new(conference: self).save
end
def has_vote_results?
vote_data_updated_at.present? and number_of_ballots_cast > 0
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end
def has_voting_endpoint?
vote_data_endpoint.present?
end
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def update_conflict_data!
update_vote_data! or raise ActiveRecord::Rollback
events.all? { |event| event.update_conflict_data(false) } or raise ActiveRecord::Rollback
end
def most_conflicts
conflict_counts.order(number_of_conflicts: :desc).first.try(:number_of_conflicts) || 0
end
def least_conflicts
conflict_counts.unscoped.order(number_of_conflicts: :asc).first.try(:number_of_conflicts) || 0
end
def most_conflicts_between_approved_events
conflict_counts.unscoped.where(left: approved_events, right: approved_events).order(number_of_conflicts: :desc).first.try(:number_of_conflicts) || 0
end
def least_conflicts_between_approved_events
conflict_counts.unscoped.where(left: approved_events, right: approved_events).order(number_of_conflicts: :asc).first.try(:number_of_conflicts) || 0
end
private
def planned_cfp_end_date_is_before_start_date
if planned_cfp_end_date.present? and start_date.present? and planned_cfp_end_date > start_date
errors.add(:planned_cfp_end_date, :cannot_be_after_start_date)
end
end
def start_date_is_before_end_date
if start_date.present? and end_date.present? and start_date > end_date
errors.add(:end_date, :cannot_be_before_start_date)
end
end
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class ConferenceVoteSummary
include ActiveModel::Model
attr_accessor :conference
def number_of_ballots
@number_of_ballots ||= remote_summary_data['number_of_ballots']
end
def ranking
@ranking ||= remote_summary_data['ranking'].map { |ranking_entry| EventRanking.new ranking_entry }
end
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def conflicts
@conflicts ||= remote_summary_data['conflicts'].map { |conflicts_entry| ConflictsForEvent.new conflicts_entry }
end
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def save
conference.transaction do
conference.number_of_ballots_cast = number_of_ballots
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conflicts.all?(&:save) or raise ActiveRecord::Rollback
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ranking.all?(&:save) or raise ActiveRecord::Rollback
conference.touch :vote_data_updated_at
conference.save or raise ActiveRecord::Rollback
end
end
private
def connection
@connection ||= Faraday.new(url: conference.vote_data_endpoint + '/summary.json',
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headers: {'Content-Type' => 'application/json'})
end
def remote_summary_data
@remote_summary_data ||= JSON.parse(connection.get do |request|
request.body = {summary: {talk_ids: conference.events.pluck(:id)}}.to_json
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end.body)
end
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class ConflictsForEvent
include ActiveModel::Model
attr_accessor :talk_id, :conflicts
def save
@event = Event.find(talk_id)
@event.conflict_counts.destroy_all or raise ActiveRecord::Rollback
conflicts.all? do |right_event_id, number_of_conflicts|
ConflictCount.create left_id: talk_id, right_id: right_event_id, number_of_conflicts: number_of_conflicts
end or raise ActiveRecord::Rollback
end
end
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class EventRanking
include ActiveModel::Model
attr_accessor :talk_id, :votes, :place
def save
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Event.where(id: talk_id).update_all(number_of_votes: votes, rank: place)
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end
end
end
end