diaspora/lib/diaspora/shareable.rb

67 lines
2.4 KiB
Ruby

# Copyright (c) 2010, Diaspora Inc. This file is
# licensed under the Affero General Public License version 3 or later. See
# the COPYRIGHT file.
# the point of this object is to centralize the simmilarities of Photo and Post,
# as they used to be the same class
module Diaspora
module Shareable
def self.included(model)
model.instance_eval do
has_many :aspect_visibilities, as: :shareable, validate: false
has_many :aspects, through: :aspect_visibilities
has_many :share_visibilities, as: :shareable, dependent: :delete_all
belongs_to :author, class_name: "Person"
delegate :id, :name, :first_name, to: :author, prefix: true
# scopes
scope :all_public, -> { where(public: true, pending: false) }
scope :with_visibility, -> {
joins("LEFT OUTER JOIN share_visibilities ON share_visibilities.shareable_id = #{table_name}.id")
}
def self.owned_or_visible_by_user(user)
with_visibility.where(
visible_by_user(user).or(arel_table[:public].eq(true)
.or(arel_table[:author_id].eq(user.person_id)))
).select("DISTINCT #{table_name}.*")
end
def self.from_person_visible_by_user(user, person)
return owned_by_user(user) if person == user.person
with_visibility.where(author_id: person.id).where(
visible_by_user(user).or(arel_table[:public].eq(true))
).select("DISTINCT #{table_name}.*")
end
def self.for_visible_shareable_sql(max_time, order, limit=15, types=Stream::Base::TYPES_OF_POST_IN_STREAM)
by_max_time(max_time, order).order(table_name + ".id DESC").where(type: types).limit(limit)
end
def self.by_max_time(max_time, order="created_at")
where("#{table_name}.#{order} < ?", max_time).order("#{table_name}.#{order} DESC")
end
def self.owned_by_user(user)
user.person.send(table_name).where(pending: false)
end
def self.visible_by_user(user)
ShareVisibility.arel_table[:user_id].eq(user.id)
.and(ShareVisibility.arel_table[:shareable_type].eq(base_class.to_s))
end
private_class_method :visible_by_user
end
end
# @return [Integer]
def update_reshares_counter
self.class.where(id: id).update_all(reshares_count: reshares.count)
end
end
end