discourse/app/models/user_history.rb

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# UserHistory stores information about actions that users have taken,
# like deleting users, changing site settings, dimissing notifications, etc.
# Use other classes, like StaffActionLogger, to log records to this table.
class UserHistory < ActiveRecord::Base
belongs_to :acting_user, class_name: 'User'
belongs_to :target_user, class_name: 'User'
validates_presence_of :action
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scope :only_staff_actions, ->{ where("action IN (?)", UserHistory.staff_action_ids) }
before_save :set_admin_only
def self.actions
@actions ||= Enum.new( :delete_user,
:change_trust_level,
:change_site_setting,
:change_site_customization,
:delete_site_customization,
:checked_for_custom_avatar,
:notified_about_avatar,
:notified_about_sequential_replies,
:notified_about_dominating_topic,
:suspend_user,
:unsuspend_user)
end
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# Staff actions is a subset of all actions, used to audit actions taken by staff users.
def self.staff_actions
@staff_actions ||= [:delete_user,
:change_trust_level,
:change_site_setting,
:change_site_customization,
:delete_site_customization,
:suspend_user,
:unsuspend_user]
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end
def self.staff_action_ids
@staff_action_ids ||= staff_actions.map { |a| actions[a] }
end
def self.admin_only_action_ids
@admin_only_action_ids ||= [actions[:change_site_setting]]
end
def self.with_filters(filters)
query = self
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if filters[:action_name] and action_id = UserHistory.actions[filters[:action_name].to_sym]
query = query.where('action = ?', action_id)
end
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[:acting_user, :target_user].each do |key|
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if filters[key] and obj_id = User.where(username_lower: filters[key].downcase).pluck(:id)
query = query.where("#{key.to_s}_id = ?", obj_id)
end
end
query = query.where("subject = ?", filters[:subject]) if filters[:subject]
query
end
def self.for(user, action_type)
self.where(target_user_id: user.id, action: UserHistory.actions[action_type])
end
def self.exists_for_user?(user, action_type, opts=nil)
opts = opts || {}
result = self.where(target_user_id: user.id, action: UserHistory.actions[action_type])
result = result.where(topic_id: opts[:topic_id]) if opts[:topic_id]
result.exists?
end
def self.staff_action_records(viewer, opts={})
query = self.with_filters(opts.slice(:action_name, :acting_user, :target_user, :subject)).only_staff_actions.limit(200).order('id DESC').includes(:acting_user, :target_user)
query = query.where(admin_only: false) unless viewer && viewer.admin?
query
end
def set_admin_only
self.admin_only = UserHistory.admin_only_action_ids.include?(self.action)
self
end
def new_value_is_json?
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[UserHistory.actions[:change_site_customization], UserHistory.actions[:delete_site_customization]].include?(action)
end
def previous_value_is_json?
new_value_is_json?
end
end
# == Schema Information
#
# Table name: user_histories
#
# id :integer not null, primary key
# action :integer not null
# acting_user_id :integer
# target_user_id :integer
# details :text
# created_at :datetime not null
# updated_at :datetime not null
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# context :string(255)
# ip_address :string(255)
# email :string(255)
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# subject :text
# previous_value :text
# new_value :text
# topic_id :integer
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#
# Indexes
#
# index_staff_action_logs_on_action_and_id (action,id)
# index_staff_action_logs_on_subject_and_id (subject,id)
# index_staff_action_logs_on_target_user_id_and_id (target_user_id,id)
# index_user_histories_on_acting_user_id_and_action_and_id (acting_user_id,action,id)
#