Class: ActiveRecord::ConnectionAdapters::ColumnMethods::TableDefinition

Inherits:
TableDefinition
  • Object
show all
Includes:
ActiveRecord::ConnectionAdapters::ColumnMethods
Defined in:
lib/active_record/connection_adapters/ibm_db_adapter.rb

Instance Method Summary collapse

Methods included from ActiveRecord::ConnectionAdapters::ColumnMethods

#primary_key

Instance Method Details

#bigint(*args) ⇒ Object 



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 733

def bigint(*args)
  puts_log '32'
  ibm_parse_column_attributes_args('bigint', *args)
  self
end

#char(*args) ⇒ Object Also known as: character

Method to support the new syntax of rails 2.0 migrations (short-hand definitions) for columns of type char [character]



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 740

def char(*args)
  puts_log '33'
  ibm_parse_column_attributes_args('char', *args)
  self
end

#column(name, type, index: nil, **options) ⇒ Object

Overrides the abstract adapter in order to handle the DEFAULT option for the native XML datatype



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 749

def column(name, type, index: nil, **options)
  puts_log '34 column'
  name = name.to_s
  type = type.to_sym if type

  if @columns_hash[name]
    unless @columns_hash[name].primary_key?
      raise ArgumentError, "you can't define an already defined column '#{name}'."
    end

    raise ArgumentError,
          "you can't redefine the primary key column '#{name}'. To define a custom primary key, pass { id: false } to create_table."

  end

  # construct a column definition where @base is adaptor instance
  column = new_column_definition(name, type, **options)

  # DB2 does not accept DEFAULT NULL option for XML
  # for table create, but does accept nullable option
  if type.to_s == 'xml'
    column.null = options[:null]
    # Override column object's (instance of ColumnDefinition structure)
    # to_s which is expected to return the create_table SQL fragment
    # and bypass DEFAULT NULL option while still appending NOT NULL
    def column.to_s
      sql = "#{base.quote_column_name(name)} #{type}"
      sql << ' NOT NULL' if !null.nil? && (null == false)
      sql
    end
  else
    column.null = options[:null]
    column.default = options[:default]
  end

  column.scale     = options[:scale]      if options[:scale]
  column.precision = options[:precision]  if options[:precision]
  # append column's limit option and yield native limits
  if options[:limit]
    column.limit = options[:limit]
  elsif @base.native_database_types[type.to_sym]
    if @base.native_database_types[type.to_sym].has_key? :limit
      column.limit = @base.native_database_types[type.to_sym][:limit]
    end
  end

  @columns << column unless @columns.nil? or @columns.include? column

  @columns_hash[name] = column

  self
end

#decfloat(*args) ⇒ Object

Method to support the new syntax of rails 2.0 migrations (short-hand definitions) for columns of type decfloat



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 715

def decfloat(*args)
  puts_log '29'
  ibm_parse_column_attributes_args('decfloat', *args)
  self
end

#double(*args) ⇒ Object

Method to support the new syntax of rails 2.0 migrations (short-hand definitions) for columns of type double



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 708

def double(*args)
  puts_log '28'
  ibm_parse_column_attributes_args('double', *args)
  self
end

#graphic(*args) ⇒ Object 



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 721

def graphic(*args)
  puts_log '30'
  ibm_parse_column_attributes_args('graphic', *args)
  self
end

#native ⇒ Object 



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 684

def native
  puts_log '25'
  @base.native_database_types
end

#vargraphic(*args) ⇒ Object 



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 727

def vargraphic(*args)
  puts_log '31'
  ibm_parse_column_attributes_args('vargraphic', *args)
  self
end

#xml(*args) ⇒ Object

Method to support the new syntax of rails 2.0 migrations for columns of type xml



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 701

def xml(*args)
  puts_log '27'
  ibm_parse_column_attributes_args('xml', *args)
  self
end