gauge/app/models/conflicts_summary.rb

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class ConflictsSummary
include ActiveModel::Model
attr_accessor :talk_ids
def talk_ids
@talk_ids ||= []
end
def conflicts
talk_ids.map do |talk_id|
{
talk_id: talk_id,
conflicts: conflicts_table[talk_id]
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}
end
end
private
def conflicts_table
@conflicts_table ||= blank_conflicts_table.merge(database_conflicts_table)
end
def database_conflicts_table
Conflicts.where(left: talk_ids, right: talk_ids).group_by(&:left).map do |left, conflicts|
conflicts_row = blank_conflicts_row(talk_ids_without(left))
conflicts_row.merge! conflicts.map { |right_conflicts| [right_conflicts.right, right_conflicts.conflicts] }.to_h
[left, conflicts_row]
end.to_h
end
def talk_ids_without(talk_id)
talk_ids.reject { |id| id == talk_id }
end
def blank_conflicts_row(other_talk_ids)
other_talk_ids.map { |talk_id| [talk_id, 0] }.to_h
end
def blank_conflicts_table
talk_ids.map { |talk_id| [talk_id, blank_conflicts_row(talk_ids_without(talk_id))] }.to_h
end
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end