Class: SqlBeautifier::DropTable

Inherits:
Base
  • Object
show all
Defined in:
lib/sql_beautifier/drop_table.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.parse(normalized_sql) ⇒ Object 



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# File 'lib/sql_beautifier/drop_table.rb', line 8

def self.parse(normalized_sql, **)
  scanner = Scanner.new(normalized_sql)
  return nil unless scanner.keyword_at?("drop")

  scanner.skip_past_keyword!("drop")
  return nil unless scanner.keyword_at?("table")

  scanner.skip_past_keyword!("table")

  if_exists = false

  if scanner.keyword_at?("if")
    return nil unless detect_if_exists?(scanner)

    skip_past_if_exists!(scanner)
    if_exists = true
  end

  table_name = scanner.read_identifier!
  return nil unless table_name

  scanner.skip_whitespace!
  return nil unless scanner.finished?

  new(table_name: table_name, if_exists: if_exists)
end

Instance Method Details

#render ⇒ Object 



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# File 'lib/sql_beautifier/drop_table.rb', line 48

def render
  parts = [Util.format_keyword("drop"), Util.format_keyword("table")]
  parts << "#{Util.format_keyword('if')} #{Util.format_keyword('exists')}" if @if_exists
  parts << Util.format_table_name(@table_name)

  "#{parts.join(' ')}\n"
end