gitlab-org--gitlab-foss/db/post_migrate/20170612071012_move_personal_snippets_files.rb
Jan Provaznik 0fc9f9d3e7 Add version 4.2 to all existing migrations
DB schema generated by a migration may look different in
rails 4 and 5 (because rails 5 may use different default values).
For this reason it's important to explicitly set for which rails
version a migration was written for.

See https://stackoverflow.com/questions/35929869/activerecordmigration-deprecation-warning-asks-for-rails-version-but-im-no/35930912#35930912
2018-11-22 13:18:28 +01:00

92 lines
3.2 KiB
Ruby

# See http://doc.gitlab.com/ce/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.
class MovePersonalSnippetsFiles < ActiveRecord::Migration[4.2]
include Gitlab::Database::MigrationHelpers
disable_ddl_transaction!
DOWNTIME = false
def up
return unless file_storage?
@source_relative_location = File.join('/uploads', 'personal_snippet')
@destination_relative_location = File.join('/uploads', '-', 'system', 'personal_snippet')
move_personal_snippet_files
end
def down
return unless file_storage?
@source_relative_location = File.join('/uploads', '-', 'system', 'personal_snippet')
@destination_relative_location = File.join('/uploads', 'personal_snippet')
move_personal_snippet_files
end
def move_personal_snippet_files
query = "SELECT uploads.path, uploads.model_id, snippets.description FROM uploads "\
"INNER JOIN snippets ON snippets.id = uploads.model_id WHERE uploader = 'PersonalFileUploader'"
select_all(query).each do |upload|
secret = upload['path'].split('/')[0]
file_name = upload['path'].split('/')[1]
next unless move_file(upload['model_id'], secret, file_name)
update_markdown(upload['model_id'], secret, file_name, upload['description'])
end
end
def move_file(snippet_id, secret, file_name)
source_dir = File.join(base_directory, @source_relative_location, snippet_id.to_s, secret)
destination_dir = File.join(base_directory, @destination_relative_location, snippet_id.to_s, secret)
source_file_path = File.join(source_dir, file_name)
destination_file_path = File.join(destination_dir, file_name)
unless File.exist?(source_file_path)
say "Source file `#{source_file_path}` doesn't exist. Skipping."
return
end
say "Moving file #{source_file_path} -> #{destination_file_path}"
FileUtils.mkdir_p(destination_dir)
FileUtils.move(source_file_path, destination_file_path)
true
end
def update_markdown(snippet_id, secret, file_name, description)
source_markdown_path = File.join(@source_relative_location, snippet_id.to_s, secret, file_name)
destination_markdown_path = File.join(@destination_relative_location, snippet_id.to_s, secret, file_name)
source_markdown = "](#{source_markdown_path})"
destination_markdown = "](#{destination_markdown_path})"
if description.present?
description = description.gsub(source_markdown, destination_markdown)
quoted_description = quote_string(description)
execute("UPDATE snippets SET description = '#{quoted_description}', description_html = NULL "\
"WHERE id = #{snippet_id}")
end
query = "SELECT id, note FROM notes WHERE noteable_id = #{snippet_id} "\
"AND noteable_type = 'Snippet' AND note IS NOT NULL"
select_all(query).each do |note|
text = note['note'].gsub(source_markdown, destination_markdown)
quoted_text = quote_string(text)
execute("UPDATE notes SET note = '#{quoted_text}', note_html = NULL WHERE id = #{note['id']}")
end
end
def base_directory
File.join(Rails.root, 'public')
end
def file_storage?
CarrierWave::Uploader::Base.storage == CarrierWave::Storage::File
end
end