Class: SafeDb::Import

Inherits:
Controller show all
Defined in:
lib/controller/book/import.rb

Overview

The import use case takes a filepath parameter in order to pull in a json formatted data structure. It then proceeds to merge each chapter of the source JSON structure into the corresponding chapter of the destination, handling duplicate key/value pairs in a sensible way.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Controller

#check_post_conditions, #check_pre_conditions, #flow, #initialize, #open_remote_backend_location, #post_validation, #pre_validation, #read_verse, #set_verse, #update_verse

Constructor Details

This class inherits a constructor from SafeDb::Controller

Instance Attribute Details

#import_filepath=(value) ⇒ Object (writeonly)

Sets the attribute import_filepath

Parameters:

  • value —

    the value to set the attribute import_filepath to.



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# File 'lib/controller/book/import.rb', line 12

def import_filepath=(value)
  @import_filepath = value
end

Instance Method Details

#execute ⇒ Object

The import use case takes a filepath parameter in order to pull in a json formatted data structure. It then proceeds to merge each chapter of the source JSON structure into the corresponding chapter of the destination, handling duplicate key/value pairs in a sensible way.



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# File 'lib/controller/book/import.rb', line 18

def execute

  abort "Cannot find the import file at path #{@import_filepath}" unless File.exists?( @import_filepath )

  puts ""
  puts "### #############################################################\n"
  puts "--- -------------------------------------------------------------\n"
  puts ""
  puts " Book Name   := #{@book.book_name()}\n"
  puts " Book Id     := #{@book.book_id()}\n"
  puts " Import from := #{@import_filepath}\n"
  puts " Import time := #{TimeStamp.readable()}\n"
  puts ""

  new_verse_count = 0
  data_store = DataStore.from_json( File.read( @import_filepath ) )
  data_store.each_pair do | chapter_name, chapter_data |
    @book.import_chapter( chapter_name, chapter_data )
    new_verse_count += chapter_data.length()
  end

  @book.write()

  puts ""
  puts "#{data_store.length()} chapters and #{new_verse_count} verses were successfully imported.\n"
  puts ""


end