Source code for the custom Mastodon (Glitchsoc) instance on berserker.town.
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63 lines
1.6 KiB
63 lines
1.6 KiB
# frozen_string_literal: true
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require 'csv'
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# A non-activerecord helper class for csv upload
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class Admin::Import
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include ActiveModel::Model
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ROWS_PROCESSING_LIMIT = 20_000
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attr_accessor :data
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validates :data, presence: true
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validate :validate_data
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def data_file_name
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data.original_filename
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end
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def csv_rows
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csv_data.rewind
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csv_data.take(ROWS_PROCESSING_LIMIT + 1)
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end
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private
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def csv_data
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return @csv_data if defined?(@csv_data)
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csv_converter = lambda do |field, field_info|
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case field_info.header
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when '#domain', '#public_comment'
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field&.strip
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when '#severity'
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field&.strip&.to_sym
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when '#reject_media', '#reject_reports', '#obfuscate'
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ActiveModel::Type::Boolean.new.cast(field)
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else
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field
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end
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end
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@csv_data = CSV.open(data.path, encoding: 'UTF-8', skip_blanks: true, headers: true, converters: csv_converter)
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@csv_data.take(1) # Ensure the headers are read
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@csv_data = CSV.open(data.path, encoding: 'UTF-8', skip_blanks: true, headers: ['#domain'], converters: csv_converter) unless @csv_data.headers&.first == '#domain'
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@csv_data
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end
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def csv_row_count
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return @csv_row_count if defined?(@csv_row_count)
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csv_data.rewind
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@csv_row_count = csv_data.take(ROWS_PROCESSING_LIMIT + 2).count
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end
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def validate_data
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return if data.nil?
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errors.add(:data, I18n.t('imports.errors.over_rows_processing_limit', count: ROWS_PROCESSING_LIMIT)) if csv_row_count > ROWS_PROCESSING_LIMIT
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rescue CSV::MalformedCSVError => e
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errors.add(:data, I18n.t('imports.errors.invalid_csv_file', error: e.message))
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end
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end
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