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

Overview

end of class Table

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 597

def bigint(*args)
        puts_log "32"
  ibm_parse_column_attributes_args('bigint',*args)
  return 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 604

def char(*args)
        puts_log "33"
  ibm_parse_column_attributes_args('char',*args)
  return 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 613

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]
          if @columns_hash[name].primary_key?
            raise ArgumentError, "you can't redefine the primary key column '#{name}'. To define a custom primary key, pass { id: false } to create_table."
          else
            raise ArgumentError, "you can't define an already defined column '#{name}'."
          end
        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
  unless type.to_s == 'xml'
    column.null    = options[:null]
    column.default = options[:default]
  else
	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}"
	  unless self.null == nil
        sql << " NOT NULL" if (self.null == false)
	  end
	  return sql
	end
        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]
    column.limit   = @base.native_database_types[type.to_sym][:limit] if @base.native_database_types[type.to_sym].has_key? :limit
  end

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

  @columns_hash[name] = column

  return 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 579

def decfloat(*args)
        puts_log "29"
  ibm_parse_column_attributes_args('decfloat',*args)
  return 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 572

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

#graphic(*args) ⇒ Object 



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 585

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

#native ⇒ Object 



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 546

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 591

def vargraphic(*args)
        puts_log "31"
  ibm_parse_column_attributes_args('vargraphic',*args)
  return 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 565

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