discourse/lib/trust_level.rb

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# frozen_string_literal: true
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class InvalidTrustLevel < StandardError
end
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class TrustLevel
def self.[](level)
raise InvalidTrustLevel if !valid?(level)
level
end
def self.levels
@levels ||= Enum.new(:newuser, :basic, :member, :regular, :leader, start: 0)
end
def self.valid?(level)
valid_range === level
end
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def self.valid_range
(0..4)
end
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def self.compare(current_level, level)
(current_level || 0) >= level
end
def self.name(level)
I18n.t("js.trust_levels.names.#{levels[level]}")
end
def self.calculate(user, use_previous_trust_level: false)
# First, use the manual locked level
return user.manual_locked_trust_level if user.manual_locked_trust_level.present?
# Then consider the group locked level (or the previous trust level)
granted_trust_level = user.group_granted_trust_level || 0
previous_trust_level = use_previous_trust_level ? find_previous_trust_level(user) : 0
[granted_trust_level, previous_trust_level, SiteSetting.default_trust_level].max
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end
private
def self.find_previous_trust_level(user)
UserHistory
.where(action: UserHistory.actions[:change_trust_level])
.where(target_user_id: user.id)
.order(created_at: :desc)
.pick(:new_value)
.to_i
end
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end