plugins/container_block/lib/container_block_plugin/container_block.rb
class ContainerBlockPlugin::ContainerBlock < Block
after_create :create_box
after_destroy :destroy_children
after_destroy :destroy_box
settings_items :container_box_id, type: Integer, default: nil
settings_items :children_settings, type: Hash, default: {}
validate :no_cyclical_reference, if: "container_box_id.present?"
def no_cyclical_reference
errors.add(:box_id, c_("cyclical reference is not allowed.")) if box_id == container_box_id
end
before_save do |b|
raise "cyclical reference is not allowed" if b.box_id == b.container_box_id && !b.container_box_id.blank?
end
def self.description
_("Container")
end
def help
_("This block acts as a container for another blocks")
end
def cacheable?
false
end
def layout_template
nil
end
def destroy_children
blocks.destroy_all
end
def create_box
container_box = Box.new(owner: owner)
container_box.save!
settings[:container_box_id] = container_box.id
copy_blocks unless @blocks_to_copy.blank?
container_box.update_attribute(:position, nil)
save!
end
def destroy_box
container_box.destroy
end
def container_box
owner.boxes.find(container_box_id)
end
def block_classes=(classes)
classes.each { |c| block = c.constantize.create!(box_id: container_box.id) } if classes
end
def blocks
container_box.blocks
end
def child_width(child_id)
children_settings[child_id][:width] if children_settings[child_id]
end
def copy_from_with_container(block)
copy_from_without_container(block)
children_settings = block.children_settings
@blocks_to_copy = block.blocks
end
alias_method :copy_from_without_container, :copy_from
alias_method :copy_from, :copy_from_with_container
def copy_blocks
new_children_settings = {}
@blocks_to_copy.map do |child|
new_block = child.class.new(title: child[:title])
new_block.copy_from(child)
container_box.blocks << new_block
new_children_settings[new_block.id] = children_settings[child.id] if children_settings[child.id]
end
settings[:children_settings] = new_children_settings
end
end