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

class TableDefinition

Instance Method Summary collapse

Methods included from ActiveRecord::ConnectionAdapters::ColumnMethods

#primary_key

Constructor Details

#initialize(conn, name, temporary = false, options = nil, as = nil, comment: nil) ⇒ TableDefinition

def initialize(base, name=nil, temporary=nil, options=nil)

if(self.respond_to?(:indexes)) @ar3 = false else @ar3 = true end

@columns = [] @columns_hash = {} @indexes = {} @base = base @temporary = temporary @options = options @name = name @foreign_keys = {} end



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 584

def initialize(conn, name, temporary = false, options = nil, as = nil, comment: nil)
			@connection = conn
			@columns_hash = {}
			@indexes = []
			@foreign_keys = []
			@primary_keys = nil
			@temporary = temporary
			@options = options
			@as = as
			@name = name
			@comment = comment
			##
			#@base = base
end

Instance Method Details

#bigint(*args) ⇒ Object 



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 648

def bigint(*args)
			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 654

def char(*args)
 ibm_parse_column_attributes_args('char',*args)
	return self
end

#column(name, type, 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 662

def column(name, type, options ={})
  # construct a column definition where @base is adaptor instance
			column = ColumnDefinition.new(name, type)
			
			# 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 633

def decfloat(*args)
			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 627

def double(*args)
			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 638

def graphic(*args)
			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 604

def native
			@base.native_database_types
end

#primary_keys(name = nil) ⇒ Object

:nodoc:



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 599

def primary_keys(name = nil) # :nodoc:
			@primary_keys = PrimaryKeyDefinition.new(name) if name
			@primary_keys
end

#vargraphic(*args) ⇒ Object 



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 643

def vargraphic(*args)
			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 621

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