diff options
Diffstat (limited to 'activerecord/lib/active_record/fixtures')
-rw-r--r-- | activerecord/lib/active_record/fixtures/file.rb | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/fixtures/file.rb b/activerecord/lib/active_record/fixtures/file.rb new file mode 100644 index 0000000000..04f494db2c --- /dev/null +++ b/activerecord/lib/active_record/fixtures/file.rb @@ -0,0 +1,55 @@ +begin + require 'psych' +rescue LoadError +end + +require 'erb' +require 'yaml' + +module ActiveRecord + class Fixtures + class File + include Enumerable + + ## + # Open a fixture file named +file+. When called with a block, the block + # is called with the filehandle and the filehandle is automatically closed + # when the block finishes. + def self.open(file) + x = new file + block_given? ? yield(x) : x + end + + def initialize(file) + @file = file + @rows = nil + end + + def each(&block) + rows.each(&block) + end + + private + def rows + return @rows if @rows + + data = YAML.load(render(IO.read(@file))) + @rows = data ? validate(data).to_a : [] + end + + def render(content) + ERB.new(content).result + end + + # Validate our unmarshalled data. + def validate(data) + unless Hash === data || YAML::Omap === data + raise Fixture::FormatError, 'fixture is not a hash' + end + + raise Fixture::FormatError unless data.all? { |name, row| Hash === row } + data + end + end + end +end |