Module: Cms::Upgrades::V3_5_0::FileStorageUpdates

Defined in:
lib/cms/upgrades/v3_5_0.rb

Overview

Add additional methods to ActiveRecord::Migration when this file is required.

Defined Under Namespace

Classes: AttachmentWrapper

Instance Method Summary collapse

Instance Method Details

#cleanup_attachment_columns(model_class) ⇒ Object

The ‘attachment_id and attachment_version are no longer stored in the model, but in the attachments table’

Parameters:

  • model_class (Class) —

    The model to have its columns cleaned up.



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# File 'lib/cms/upgrades/v3_5_0.rb', line 150

def cleanup_attachment_columns(model_class)
  remove_content_column model_class.table_name, :attachment_id if column_exists?(model_class.table_name, :attachment_id)
  remove_content_column model_class.table_name, :attachment_version if column_exists?(model_class.table_name, :attachment_id)
end

#cleanup_attachment_columns_for_core_cms ⇒ Object

Remove the attachment_version and attachment_id columns for all core CMS blocks.



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# File 'lib/cms/upgrades/v3_5_0.rb', line 144

def cleanup_attachment_columns_for_core_cms
  cleanup_attachment_columns(Cms::FileBlock)
end

#cleanup_attachment_file_storage ⇒ Object

Deletes the old file storage folders from the uploads directory.



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# File 'lib/cms/upgrades/v3_5_0.rb', line 164

def cleanup_attachment_file_storage
  ["2009", "2010", "2011", "2012"].each do |year|
    folder_to_remove = File.join(attachments_dir, year)
    FileUtils.rm_rf(folder_to_remove, :verbose => true)
  end
end

#cleanup_attachments_file_location ⇒ Object

Removes the cms_attachments.file_location column

data_fingerprint is used to store the file name instead now.



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# File 'lib/cms/upgrades/v3_5_0.rb', line 158

def cleanup_attachments_file_location
  remove_content_column :cms_attachments, :file_location if column_exists?(:cms_attachments, :file_location)
end

#migrate_attachment_files_to_new_location ⇒ Object

Move the attachment files from the old file path path to new one. Updates the Attachment record to match.



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# File 'lib/cms/upgrades/v3_5_0.rb', line 138

def migrate_attachment_files_to_new_location
  migrate_attachments_file_location(Cms::Attachment)
  migrate_attachments_file_location(Cms::Attachment::Version)
end

#migrate_attachment_for(klass) ⇒ Object

For a given class with an Attachment association (pre-3.5.0), migrate its attachment data to match the new table structure.



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# File 'lib/cms/upgrades/v3_5_0.rb', line 100

def migrate_attachment_for(klass)
  klass.unscoped.find_each do |block|
    Cms::Attachment.unscoped.update_all({:attachable_id => block.id,
                                         :attachable_version => block.version,
                                         :attachable_type => klass.name,
                                         :attachment_name => "file",
                                         :cardinality => 'single'},
                                        {:id => block.attachment_id})
  end

  attachable_type = klass.name
  # Special handling for File/Image blocks
  if klass == Cms::FileBlock
    attachable_type = "Cms::AbstractFileBlock"
  elsif klass == Cms::ImageBlock
    # Only need to do this once for both Image and File blocks since they share a table.
    return
  end

  migrated_attachment_for_versioned_table(klass, attachable_type)

end

#migrated_attachment_for_versioned_table(model_class, attachable_type) ⇒ Object 



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# File 'lib/cms/upgrades/v3_5_0.rb', line 123

def migrated_attachment_for_versioned_table(model_class, attachable_type)
  version_model = model_class.version_class

  found = version_model.find_by_sql("SELECT original_record_id, attachment_id, attachment_version, version from #{version_model.table_name}")
  found.each do |version_record|
    Cms::Attachment::Version.unscoped.update_all({:attachable_id => version_record.original_record_id,
                                                  :attachable_version => version_record.version,
                                                  :attachable_type => attachable_type,
                                                  :attachment_name => "file",
                                                  :cardinality => 'single'},
                                                 {:original_record_id => version_record.attachment_id, :version => version_record.attachment_version})
  end
end

#path_for_attachment(attachment) ⇒ String

Old paths are:

uploads/:year/:month/:day/:fingerprint

i.e. uploads/2012/04/27/fb598.…..

New paths use paperclip’s :id_partition which creates paths like:

uploads/000/000/001/:fingerprint

where it splits the id into multiple directories

Parameters:

Returns:

  • (String) —

    path to location where an attachment should be (based on id)



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# File 'lib/cms/upgrades/v3_5_0.rb', line 93

def path_for_attachment(attachment)
  new_id_dir = "#{Paperclip::Interpolations.id_partition(AttachmentWrapper.new(attachment), nil)}/original"
  File.join(attachments_dir, new_id_dir, fingerprint_for_file_location(attachment))
end