Files
danbooru/app/logical/bigquery_export_service.rb
evazion 81fe68d392 bans: change expires_at field to duration.
Changes:

* Change the `expires_at` field to `duration`.
* Make moderators choose from a fixed set of standard ban lengths,
  instead of allowing arbitrary ban lengths.
* List `duration` in seconds in the /bans.json API.
* Dump bans to BigQuery.

Note that some old bans have a negative duration. This is because their
expiration date was before their creation date, which is because in 2013
bans were migrated to Danbooru 2 and the original ban creation dates
were lost.
2021-03-11 02:59:58 -06:00

96 lines
2.5 KiB
Ruby

# Export all public data in a model to BigQuery and to Google Cloud Storage.
class BigqueryExportService
extend Memoist
attr_reader :model, :dataset_name, :credentials
def initialize(model = nil, dataset_name: "danbooru_public", credentials: default_credentials)
@model = model
@dataset_name = dataset_name
@credentials = credentials
end
def self.async_export_all!(**options)
models.each do |model|
BigqueryExportJob.perform_later(model: model, **options)
end
end
def self.models
Rails.application.eager_load!
models = ApplicationRecord.descendants.sort_by(&:name)
models -= [Favorite, IpAddress, TagRelationship, ArtistVersion, ArtistCommentaryVersion, NoteVersion, PoolVersion, PostVersion, WikiPageVersion]
models
end
def enabled?
credentials.present?
end
def export!
return unless enabled? && records.any?
file = dump_records!
upload_to_bigquery!(file)
end
# Dump the model records to a gzipped, newline-delimited JSON tempfile.
def dump_records!
file = Tempfile.new("danbooru-export-dump-", binmode: true)
file = Zlib::GzipWriter.new(file)
CurrentUser.scoped(User.anonymous) do
records.find_each(batch_size: 5_000) do |record|
file.puts(record.to_json)
end
end
file.close # flush zlib footer
file
end
# GCS: gs://danbooru_public/data/{model}.json
# BQ: danbooru1.danbooru_public.{model}
def upload_to_bigquery!(file)
table_name = model.model_name.collection
gsfilename = "data/#{table_name}.json"
gsfile = bucket.create_file(file.path, gsfilename, content_encoding: "gzip")
job = dataset.load_job(table_name, gsfile, format: "json", autodetect: true, create: "needed", write: "truncate")
job.wait_until_done!
job
end
# private
def records
model.visible(User.anonymous)
end
def dataset
bigquery.dataset(dataset_name) || bigquery.create_dataset(dataset_name)
end
def bucket
storage.bucket(dataset_name) || storage.create_bucket(dataset_name, acl: "public", default_acl: "public", storage_class: "standard", location: "us-east1")
end
def bigquery
Google::Cloud::Bigquery.new(credentials: credentials)
end
def storage
Google::Cloud::Storage.new(credentials: credentials)
end
def default_credentials
return nil unless Danbooru.config.google_cloud_credentials.present?
JSON.parse(Danbooru.config.google_cloud_credentials)
end
memoize :dataset, :bucket, :bigquery, :storage, :default_credentials
end