demarches-normaliennes/app/services/procedure_export_service.rb

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class ProcedureExportService
attr_reader :procedure, :dossiers
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def initialize(procedure, dossiers)
@procedure = procedure
@dossiers = dossiers
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@tables = [:dossiers, :etablissements, :avis] + champs_repetables_options
end
def to_csv
@dossiers = @dossiers.downloadable_sorted_batch
io = StringIO.new(SpreadsheetArchitect.to_csv(options_for(:dossiers, :csv)))
create_blob(io, :csv)
end
def to_xlsx
@dossiers = @dossiers.downloadable_sorted_batch
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# We recursively build multi page spreadsheet
io = @tables.reduce(nil) do |package, table|
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SpreadsheetArchitect.to_axlsx_package(options_for(table, :xlsx), package)
end.to_stream
create_blob(io, :xlsx)
end
def to_ods
@dossiers = @dossiers.downloadable_sorted_batch
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# We recursively build multi page spreadsheet
io = StringIO.new(@tables.reduce(nil) do |spreadsheet, table|
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SpreadsheetArchitect.to_rodf_spreadsheet(options_for(table, :ods), spreadsheet)
end.bytes)
create_blob(io, :ods)
end
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def to_zip
attachments = ActiveStorage::DownloadableFile.create_list_from_dossiers(dossiers, true)
DownloadableFileService.download_and_zip(procedure, attachments, base_filename) do |zip_filepath|
ArchiveUploader.new(procedure: procedure, filename: filename(:zip), filepath: zip_filepath).blob
end
end
private
def create_blob(io, format)
ActiveStorage::Blob.create_and_upload!(
io: io,
filename: filename(format),
content_type: content_type(format),
identify: false,
# We generate the exports ourselves, so they are safe
metadata: { virus_scan_result: ActiveStorage::VirusScanner::SAFE }
)
end
def base_filename
@base_filename ||= "dossiers_#{procedure_identifier}_#{Time.zone.now.strftime('%Y-%m-%d_%H-%M')}"
end
def filename(format)
"#{base_filename}.#{format}"
end
def procedure_identifier
procedure.path || "procedure-#{procedure.id}"
end
def content_type(format)
case format
when :csv
'text/csv'
when :xlsx
'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
when :ods
'application/vnd.oasis.opendocument.spreadsheet'
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when :zip
'application/zip'
end
end
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def etablissements
@etablissements ||= dossiers.flat_map do |dossier|
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[dossier.champs, dossier.champs_private]
.flatten
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.filter { |champ| champ.is_a?(Champs::SiretChamp) }
end.filter_map(&:etablissement) + dossiers.filter_map(&:etablissement)
end
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def avis
@avis ||= dossiers.flat_map(&:avis)
end
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def champs_repetables_options
champs_by_stable_id = dossiers
.flat_map { |dossier| (dossier.champs + dossier.champs_private).filter(&:repetition?) }
.group_by(&:stable_id)
procedure
.types_de_champ_for_procedure_presentation
.repetition
.filter_map do |type_de_champ_repetition|
types_de_champ = procedure.types_de_champ_for_procedure_presentation(type_de_champ_repetition).to_a
if types_de_champ.present?
{
sheet_name: type_de_champ_repetition.libelle_for_export,
instances: champs_by_stable_id.fetch(type_de_champ_repetition.stable_id, []).flat_map(&:rows_for_export),
spreadsheet_columns: Proc.new { |instance| instance.spreadsheet_columns(types_de_champ) }
}
end
end
end
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DEFAULT_STYLES = {
header_style: { background_color: "000000", color: "FFFFFF", font_size: 12, bold: true },
row_style: { background_color: nil, color: "000000", font_size: 12 }
}
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def options_for(table, format)
options = case table
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when :dossiers
{ instances: dossiers.to_a, sheet_name: 'Dossiers', spreadsheet_columns: spreadsheet_columns(format) }
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when :etablissements
{ instances: etablissements.to_a, sheet_name: 'Etablissements' }
when :avis
{ instances: avis.to_a, sheet_name: 'Avis' }
when Hash
table
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end.merge(DEFAULT_STYLES)
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# transliterate: convert to ASCII characters
# to ensure truncate respects 30 bytes
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# /\*?[] are invalid Excel worksheet characters
options[:sheet_name] = I18n.transliterate(options[:sheet_name], locale: :en)
.delete('/\*?[]')
.truncate(30, omission: '')
options
end
def spreadsheet_columns(format)
types_de_champ = procedure.types_de_champ_for_procedure_presentation.not_repetition.to_a
Proc.new do |instance|
instance.send(:"spreadsheet_columns_#{format}", types_de_champ: types_de_champ)
end
end
end