class PopulateMe::Attachment

Attributes

settings[RW]
document[RW]
field[RW]

Public Class Methods

inherited(sub) click to toggle source
Calls superclass method
# File lib/populate_me/attachment.rb, line 19
def inherited sub
  super
  sub.settings = settings.dup
  sub::Middleware.parent = sub
end
middleware() click to toggle source
# File lib/populate_me/attachment.rb, line 25
def middleware
  Rack::Static
end
middleware_options() click to toggle source
# File lib/populate_me/attachment.rb, line 29
def middleware_options
  [
    {
      urls: [settings.url_prefix], 
      root: settings.root
    }
  ]
end
new(doc, field) click to toggle source
# File lib/populate_me/attachment.rb, line 42
def initialize doc, field
  @document = doc
  @field = field
end
set(name, value) click to toggle source

inheritable settings

# File lib/populate_me/attachment.rb, line 15
def set name, value
  self.settings[name] = value
end

Public Instance Methods

attachee_prefix() click to toggle source
# File lib/populate_me/attachment.rb, line 70
def attachee_prefix
  WebUtils.dasherize_class_name self.document.class.name
end
create(form_hash) click to toggle source
# File lib/populate_me/attachment.rb, line 98
def create form_hash
  self.delete
  future_field_value = perform_create form_hash
  create_variations form_hash.merge({future_field_value: future_field_value})
  future_field_value
end
create_variations(hash) click to toggle source
# File lib/populate_me/attachment.rb, line 105
def create_variations hash
  return if self.variations.nil?
  tmppath = hash[:tempfile].path
  path = self.location_for_filename hash[:future_field_value]
  FileUtils.mkdir_p(File.dirname(path))
  variations.each do |v|
    self.delete v.name
    v_path = WebUtils.filename_variation path, v.name, v.ext
    v.job.call tmppath, v_path
    self.perform_create hash.merge({variation: v, variation_path: v_path})
  end
end
deletable?(variation_name=:original) click to toggle source
# File lib/populate_me/attachment.rb, line 131
def deletable? variation_name=:original
  !WebUtils.blank?(self.field_filename(variation_name)) and File.exist?(self.location(variation_name))
end
delete(variation_name=:original) click to toggle source
# File lib/populate_me/attachment.rb, line 135
def delete variation_name=:original
  if self.deletable?(variation_name)
    perform_delete variation_name
  end
end
delete_all() click to toggle source
# File lib/populate_me/attachment.rb, line 141
def delete_all
  to_delete =  [:original] + variations.map(&:name)
  to_delete.each do |v_name|
    self.delete v_name
  end
end
ensure_local_path() click to toggle source
# File lib/populate_me/attachment.rb, line 94
def ensure_local_path
  self.location
end
field_filename(variation_name=:original) click to toggle source
# File lib/populate_me/attachment.rb, line 63
def field_filename variation_name=:original
  return nil if WebUtils.blank?(self.field_value)
  return self.field_value if variation_name==:original
  v = self.variations.find{|var|var.name==variation_name}
  WebUtils.filename_variation(self.field_value, v.name, v.ext)
end
field_options() click to toggle source
# File lib/populate_me/attachment.rb, line 55
def field_options
  self.document.class.fields[self.field]
end
field_value() click to toggle source
# File lib/populate_me/attachment.rb, line 51
def field_value
  self.document.__send__(field)
end
location(variation_name=:original) click to toggle source
# File lib/populate_me/attachment.rb, line 87
def location variation_name=:original
  self.location_for_filename self.field_filename(variation_name)
end
location_for_filename(filename) click to toggle source
# File lib/populate_me/attachment.rb, line 90
def location_for_filename filename
  File.join self.location_root, filename
end
location_root() click to toggle source
# File lib/populate_me/attachment.rb, line 79
def location_root
  File.join(
    settings.root, 
    settings.url_prefix,
    self.attachee_prefix
  )
end
perform_create(hash) click to toggle source
# File lib/populate_me/attachment.rb, line 118
def perform_create hash
  return File.basename(hash[:variation_path]) unless WebUtils.blank?(hash[:variation_path])
  # Rack 1.6 deletes multipart files after request
  # So we have to create a copy
  FileUtils.mkdir_p self.location_root
  tmppath = hash[:tempfile].path
  unique_prefix = File.basename(tmppath, File.extname(tmppath))
  unique_filename = "#{unique_prefix}-#{hash[:filename]}"
  path = self.location_for_filename unique_filename
  FileUtils.copy_entry(tmppath, path) 
  unique_filename
end
perform_delete(variation_name=:original) click to toggle source
# File lib/populate_me/attachment.rb, line 148
def perform_delete variation_name=:original
  FileUtils.rm self.location(variation_name)
end
settings() click to toggle source
# File lib/populate_me/attachment.rb, line 47
def settings
  self.class.settings
end
url(variation_name=:original) click to toggle source
# File lib/populate_me/attachment.rb, line 74
def url variation_name=:original
  return nil if WebUtils.blank?(self.field_filename(variation_name))
  "#{settings.url_prefix.sub(/\/$/,'')}/#{self.attachee_prefix}/#{self.field_filename(variation_name)}"
end
variations() click to toggle source
# File lib/populate_me/attachment.rb, line 59
def variations
  self.field_options[:variations] || []
end