discourse/app/models/group_category_notification...

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# frozen_string_literal: true
class GroupCategoryNotificationDefault < ActiveRecord::Base
belongs_to :group
belongs_to :category
def self.notification_levels
NotificationLevels.all
end
def self.lookup(group, level)
self.where(group: group, notification_level: notification_levels[level])
end
def self.batch_set(group, level, category_ids)
level_num = notification_levels[level]
category_ids = Category.where(id: category_ids).pluck(:id)
changed = false
# Update pre-existing
if category_ids.present? &&
GroupCategoryNotificationDefault
.where(group_id: group.id, category_id: category_ids)
.where.not(notification_level: level_num)
.update_all(notification_level: level_num) > 0
changed = true
end
# Remove extraneous category users
if GroupCategoryNotificationDefault
.where(group_id: group.id, notification_level: level_num)
.where.not(category_id: category_ids)
.delete_all > 0
changed = true
end
if category_ids.present?
params = { group_id: group.id, level_num: level_num }
sql = <<~SQL
INSERT INTO group_category_notification_defaults (group_id, category_id, notification_level)
SELECT :group_id, :category_id, :level_num
ON CONFLICT DO NOTHING
SQL
# we could use VALUES here but it would introduce a string
# into the query, plus it is a bit of a micro optimisation
category_ids.each do |category_id|
params[:category_id] = category_id
changed = true if DB.exec(sql, params) > 0
end
end
changed
end
end
# == Schema Information
#
# Table name: group_category_notification_defaults
#
# id :bigint not null, primary key
# group_id :integer not null
# category_id :integer not null
# notification_level :integer not null
#
# Indexes
#
# idx_group_category_notification_defaults_unique (group_id,category_id) UNIQUE
#