Class: Cassie::Schema::CassandraMigrations::MigrationFile

Inherits:
Object
  • Object
show all
Defined in:
lib/cassie/schema/cassandra_migrations/migration_file.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename) ⇒ MigrationFile

Returns a new instance of MigrationFile.



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# File 'lib/cassie/schema/cassandra_migrations/migration_file.rb', line 7

def initialize(filename)
  @filename = filename
  @description = parse_description
end

Instance Attribute Details

#description ⇒ Object (readonly)

Returns the value of attribute description.



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# File 'lib/cassie/schema/cassandra_migrations/migration_file.rb', line 5

def description
  @description
end

#filename ⇒ Object (readonly)

Returns the value of attribute filename.



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# File 'lib/cassie/schema/cassandra_migrations/migration_file.rb', line 5

def filename
  @filename
end

#source ⇒ Object (readonly)

Returns the value of attribute source.



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# File 'lib/cassie/schema/cassandra_migrations/migration_file.rb', line 5

def source
  @source
end

Instance Method Details

#build_migration_class(version) ⇒ String

Builds a Cassie::Schema::Migration from the CassandraMigrations migration file

Returns:

  • (String) —

    source string of new migration class



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# File 'lib/cassie/schema/cassandra_migrations/migration_file.rb', line 16

def build_migration_class(version)
  @source = load_source
  redefine_class(version.migration_class_name)
  define_new_migration_class
  version.migration_class_name.constantize
  @source
ensure
  @source = nil #free for GC
end