discourse/app/models/group_user.rb

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require_dependency 'notification_levels'
class GroupUser < ActiveRecord::Base
belongs_to :group, counter_cache: "user_count"
belongs_to :user
after_save :update_title
after_destroy :grant_other_available_title
after_save :set_primary_group
after_destroy :remove_primary_group, :recalculate_trust_level
before_create :set_notification_level
after_save :grant_trust_level
def self.notification_levels
NotificationLevels.all
end
protected
def set_notification_level
self.notification_level = group&.default_notification_level || 3
end
def set_primary_group
if group.primary_group
DB.exec("
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UPDATE users
SET primary_group_id = :id
WHERE id = :user_id",
id: group.id, user_id: user_id
)
end
end
def remove_primary_group
DB.exec("
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UPDATE users
SET primary_group_id = NULL
WHERE id = :user_id AND primary_group_id = :id",
id: group.id, user_id: user_id
)
end
def grant_other_available_title
if group.title.present? && group.title == user.title
user.update!(title: user.next_best_title)
end
end
def update_title
if group.title.present?
DB.exec("
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UPDATE users SET title = :title
WHERE (title IS NULL OR title = '') AND id = :id",
id: user_id, title: group.title
)
end
end
def grant_trust_level
return if group.grant_trust_level.nil?
if (user.group_locked_trust_level || 0) < group.grant_trust_level
user.update!(group_locked_trust_level: group.grant_trust_level)
end
TrustLevelGranter.grant(group.grant_trust_level, user)
end
def recalculate_trust_level
return if group.grant_trust_level.nil?
# Find the highest level of the user's remaining groups
highest_level = GroupUser
.where(user_id: user.id)
.includes(:group)
.maximum("groups.grant_trust_level")
user.update!(group_locked_trust_level: highest_level)
Promotion.recalculate(user)
end
end
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# == Schema Information
#
# Table name: group_users
#
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# id :integer not null, primary key
# group_id :integer not null
# user_id :integer not null
# created_at :datetime not null
# updated_at :datetime not null
# owner :boolean default(FALSE), not null
# notification_level :integer default(2), not null
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#
# Indexes
#
# index_group_users_on_group_id_and_user_id (group_id,user_id) UNIQUE
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# index_group_users_on_user_id_and_group_id (user_id,group_id) UNIQUE
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#