Class: XMigra::RevertFile

Inherits:
Object show all
Defined in:
lib/xmigra/revert_file.rb

Constant Summary collapse

REVERSION_SUBDIR = 
'rollback'

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(migration) ⇒ RevertFile

Returns a new instance of RevertFile.



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# File 'lib/xmigra/revert_file.rb', line 7

def initialize(migration)
  @migration = migration
  mig_path = Pathname(migration.file_path)
  @description = "REVERT #{migration.description} (#{mig_path.basename})"
  @path = migration.schema_dir.join(
    REVERSION_SUBDIR,
    mig_path.basename.to_s.sub(/\..*?$/, '.sql')
  )
end

Instance Attribute Details

#description ⇒ Object (readonly)

Returns the value of attribute description.



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# File 'lib/xmigra/revert_file.rb', line 17

def description
  @description
end

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/xmigra/revert_file.rb', line 17

def path
  @path
end

Instance Method Details

#exist? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/xmigra/revert_file.rb', line 38

def exist?
  @path.exist?
end

#inspect ⇒ Object 



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# File 'lib/xmigra/revert_file.rb', line 31

def inspect
  "#<#{self.class.name} %s%s>" % [
    @path,
    (" (missing)" unless @path.exist?),
  ]
end

#to_s ⇒ Object 



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# File 'lib/xmigra/revert_file.rb', line 19

def to_s
  if @path.exist?
    @sql ||= "-- %s:\n\n%s\n%s" % [
      @description,
      @path.read,
      @migration.reversion_tracking_sql
    ]
  else
    "-- #@description: No reversion given\n"
  end
end