Class: YamlDb::CsvDb::Dump

Inherits:
SerializationHelper::Dump show all
Defined in:
lib/yaml_db/csv_db.rb

Class Method Summary collapse

Methods inherited from SerializationHelper::Dump

dump_table, each_table_page, table_column_names, table_record_count, tables

Class Method Details

.after_table(io, table) ⇒ Object 



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# File 'lib/yaml_db/csv_db.rb', line 55

def self.after_table(io,table)
  io.write ""
end

.before_table(io, table) ⇒ Object 



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# File 'lib/yaml_db/csv_db.rb', line 43

def self.before_table(io,table)
  io.write "BEGIN_CSV_TABLE_DECLARATION#{table}END_CSV_TABLE_DECLARATION\n"
end

.dump(io) ⇒ Object 



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# File 'lib/yaml_db/csv_db.rb', line 47

def self.dump(io)
  tables.each do |table|
    before_table(io, table)
    dump_table(io, table)
    after_table(io, table)
  end
end

.dump_table_columns(io, table) ⇒ Object 



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# File 'lib/yaml_db/csv_db.rb', line 59

def self.dump_table_columns(io, table)
  io.write(table_column_names(table).to_csv)
end

.dump_table_records(io, table) ⇒ Object 



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# File 'lib/yaml_db/csv_db.rb', line 63

def self.dump_table_records(io, table)

  column_names = table_column_names(table)

  each_table_page(table) do |records|
    rows = SerializationHelper::Utils.unhash_records(records, column_names)
    records.each do |record|
      io.write(record.to_csv)
    end
  end
end