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Versions: 68
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Contents
module Technoweenie # :nodoc:
module AttachmentFu # :nodoc:
module Backends
# Methods for DB backed attachments
module DbFileBackend
def self.included(base) #:nodoc:
Object.const_set(:DbFile, Class.new(ActiveRecord::Base)) unless Object.const_defined?(:DbFile)
base.belongs_to :db_file, :class_name => '::DbFile', :foreign_key => 'db_file_id'
end
# Creates a temp file with the current db data.
def create_temp_file
write_to_temp_file current_data
end
# Gets the current data from the database
def current_data
db_file.data
end
protected
# Destroys the file. Called in the after_destroy callback
def destroy_file
db_file.destroy if db_file
end
# Saves the data to the DbFile model
def save_to_storage
if save_attachment?
(db_file || build_db_file).data = temp_data
db_file.save!
self.class.update_all ['db_file_id = ?', self.db_file_id = db_file.id], ['id = ?', id]
end
true
end
end
end
end
end
Version data entries
68 entries across 68 versions & 2 rubygems