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# File 'mod/05_standard/lib/carrier_wave/cardmount.rb', line 16
def mount_uploader(column, uploader=nil, options={}, &block)
options[:mount_on] ||= :db_content
super
class_eval <<-RUBY, __FILE__, __LINE__+1
event :store_#{column}_event, :on=>:save, :after=>:store do
store_#{column}!
end
# remove files only if card has no history
event :remove_#{column}_event, :on =>:delete, :after=>:stored, :when => proc { |c| !c.history? } do
remove_#{column}!
end
event :mark_remove_#{column}_false_event, :on => :update, :after=>:stored do
mark_remove_#{column}_false
end
event :store_previous_model_for_#{column}_event, :on=>:update, :before =>:store, :when => proc { |c| !c.history? } do
store_previous_model_for_#{column}
end
event :remove_previously_stored_#{column}_event, :on=>:update, :after => :store, :when => proc { |c| !c.history?} do
remove_previously_stored_#{column}
end
def attachment
#{column}
end
def store_attachment!
store_#{column}!
end
def attachment_name
"#{column}".to_sym
end
def read_uploader *args
read_attribute *args
end
def write_uploader *args
write_attribute *args
end
def #{column}=(new_file)
send(:"#{column}_will_change!")
db_column = _mounter(:#{column}).serialization_column
send(:"\#{db_column}_will_change!")
super
end
def remote_#{column}_url=(url)
send(:"#{column}_will_change!")
db_column = _mounter(:#{column}).serialization_column
send(:"\#{db_column}_will_change!")
super
end
def remove_#{column}!
super
_mounter(:#{column}).remove = true
_mounter(:#{column}).write_identifier
end
def #{column}_will_change!
@#{column}_changed = true
end
def #{column}_changed?
@#{column}_changed
end
def serializable_hash(options=nil)
hash = {}
except = options && options[:except] && Array.wrap(options[:except]).map(&:to_s)
only = options && options[:only] && Array.wrap(options[:only]).map(&:to_s)
self.class.uploaders.each do |column, uploader|
if (!only && !except) || (only && only.include?(column.to_s)) || (!only && except && !except.include?(column.to_s))
hash[column.to_s] = _mounter(column).uploader.serializable_hash
end
end
super(options).merge(hash)
end
RUBY
end
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