- validates_presence_of :user_id, :created_at, :open
- validates_inclusion_of :open, :in => [ true, false ]
-
+ has_many :comments, -> { where(:visible => true).order(:created_at) }, :class_name => "ChangesetComment"
+ has_and_belongs_to_many :subscribers, :class_name => 'User', :join_table => 'changesets_subscribers', :association_foreign_key => 'subscriber_id'
+
+ validates_presence_of :id, :on => :update
+ validates_presence_of :user_id, :created_at, :closed_at, :num_changes
+ validates_uniqueness_of :id
+ validates_numericality_of :id, :on => :update, :integer_only => true
+ validates_numericality_of :min_lat, :max_lat, :min_lon, :max_lat, :allow_nil => true, :integer_only => true
+ validates_numericality_of :user_id, :integer_only => true
+ validates_numericality_of :num_changes, :integer_only => true, :greater_than_or_equal_to => 0
+
+ before_save :update_closed_at
+
+ # over-expansion factor to use when updating the bounding box
+ EXPAND = 0.1
+
+ # maximum number of elements allowed in a changeset
+ MAX_ELEMENTS = 50000
+
+ # maximum time a changeset is allowed to be open for.
+ MAX_TIME_OPEN = 1.day
+
+ # idle timeout increment, one hour seems reasonable.
+ IDLE_TIMEOUT = 1.hour
+