90 lines
2.7 KiB
Ruby
90 lines
2.7 KiB
Ruby
class CategoryUser < ActiveRecord::Base
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belongs_to :category
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belongs_to :user
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def self.lookup(user, level)
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self.where(user: user, notification_level: notification_levels[level])
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end
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def self.lookup_by_category(user, category)
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self.where(user: user, category: category)
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end
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# same for now
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def self.notification_levels
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TopicUser.notification_levels
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end
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def self.auto_track_new_topic(topic)
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apply_default_to_topic(topic,
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TopicUser.notification_levels[:tracking],
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TopicUser.notification_reasons[:auto_track_category]
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)
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end
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def self.auto_watch_new_topic(topic)
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apply_default_to_topic(topic,
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TopicUser.notification_levels[:watching],
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TopicUser.notification_reasons[:auto_watch_category]
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)
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end
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def self.batch_set(user, level, category_ids)
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records = CategoryUser.where(user: user, notification_level: notification_levels[level])
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old_ids = records.pluck(:category_id)
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category_ids = Category.where('id in (?)', category_ids).pluck(:id)
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remove = (old_ids - category_ids)
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if remove.present?
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records.where('category_id in (?)', remove).destroy_all
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end
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(category_ids - old_ids).each do |id|
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CategoryUser.create!(user: user, category_id: id, notification_level: notification_levels[level])
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end
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end
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def self.set_notification_level_for_category(user, level, category_id)
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record = CategoryUser.where(user: user, category_id: category_id).first
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if record.present?
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record.notification_level = level
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record.save!
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else
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CategoryUser.create!(user: user, category_id: category_id, notification_level: level)
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end
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end
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def self.apply_default_to_topic(topic, level, reason)
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# Can not afford to slow down creation of topics when a pile of users are watching new topics, reverting to SQL for max perf here
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sql = <<-SQL
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INSERT INTO topic_users(user_id, topic_id, notification_level, notifications_reason_id)
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SELECT user_id, :topic_id, :level, :reason
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FROM category_users
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WHERE notification_level = :level
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AND category_id = :category_id
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AND NOT EXISTS(SELECT 1 FROM topic_users WHERE topic_id = :topic_id AND user_id = category_users.user_id)
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SQL
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exec_sql(sql,
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topic_id: topic.id,
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category_id: topic.category_id,
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level: level,
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reason: reason
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)
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end
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private_class_method :apply_default_to_topic
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end
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# == Schema Information
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#
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# Table name: category_users
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#
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# id :integer not null, primary key
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# category_id :integer not null
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# user_id :integer not null
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# notification_level :integer not null
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#
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