Module: FileBlobs::ActiveRecordTableDefinitionExtensions

Defined in:
lib/file_blobs_rails/active_record_table_definition_extensions.rb

Overview

Module mixed into ActiveRecord::ConnectionAdapters::TableDefinition.

Instance Method Summary collapse

Instance Method Details

#file_blob(column_name_base = :file, options = {}, &block) ⇒ Object

Creates the columns used to reference a file blob

Parameters:

  • column_name_base (Symbol) (defaults to: :file) —

    the prefix used to generate column names; this should match the attribute name given to has_file_blob

  • options (Hash<Symbol, Object>) (defaults to: {})

Options Hash (options):

  • null (Boolean) —

    true

  • mime_type_limit (Integer) —

    the maximum size of the column used to store the file name provided by the user’s browser

  • file_name_limit (Integer) —

    the maximum size of the column used to store the file blob’s MIME type



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# File 'lib/file_blobs_rails/active_record_table_definition_extensions.rb', line 17

def file_blob(column_name_base = :file, options = {}, &block)
  allow_null = options[:null] || false
  mime_type_limit = options[:mime_type_limit] || 64
  file_name_limit = options[:file_name_limit] || 256

  # The index is needed for garbage-collection eligibility checks.
  string :"#{column_name_base}_blob_id", limit: 48, null: allow_null,
         index: true

  integer :"#{column_name_base}_size", null: allow_null
  string :"#{column_name_base}_mime_type", limit: mime_type_limit,
         null: allow_null
  string :"#{column_name_base}_original_name", limit: file_name_limit,
         null: allow_null
end