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@wtnabe /.irbrc
Created May 10, 2011

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What would you like to do?
A model dumper for rails console ( Rails 3 or later ) and .irbrc for rails env
# -*- mode: ruby; coding: utf-8 -*-
if defined? Rails
railsrc = __FILE__ + '.rails'
load railsrc if File.exist? railsrc
envrc = File.join( Rails.root, '.irbrc' )
load envrc if File.exist? envrc
end
# -*- mode: ruby -*-
IRB.conf[:PROMPT][:RAILS] = IRB.conf[:PROMPT][:DEFAULT].dup
IRB.conf[:PROMPT][:RAILS].merge!({
:PROMPT_I => "#{Rails.env}(%m):%03n:%i> "
})
IRB.conf[:PROMPT_MODE] = :RAILS
begin
require 'ya2yaml'
rescue LoadError
end
=begin
* Dump given model to YAML or CSV
* Place dumped file in #{Rails.root}
=end
class ModelDumper
class << self
if ( defined? Ya2YAML )
def to_yaml( obj )
obj.ya2yaml
end
else
def to_yaml( obj )
obj.to_yaml
end
end
def dump( model, format = 'yaml' )
if ( model.respond_to? :model_name and model.respond_to? :model_fields )
if ( methods.grep( /\Adump_to_#{format}\z/ ).size > 0 )
send( "dump_to_#{format}", model )
else
STDERR.puts "#{format} is not supported."
end
else
STDERR.puts "#{model.class} is not Model."
end
end
def dump_to_csv( model )
FasterCSV.open( filename( model, 'csv' ), 'w' ) do |csv|
fields = model.model_fields.keys
csv << fields.map { |e| e.to_s }
model.all.each { |e|
csv << fields.map { |key| convert_bool( e[key] ) }
}
end
end
def dump_to_yaml( model )
open( filename( model, 'yml' ), 'w' ) do |f|
key = 0
f.puts model.all.map { |e|
key += 1
to_yaml( key => convert_bool( e.attributes ) ).sub( /\A--- \n/, '' )
}
end
end
alias_method :dump_to_yml, :dump_to_yaml
def filename( model, suffix )
"#{model.table_name}.#{suffix}"
end
def convert_bool( val )
case val
when true
't'
when false
'f'
when Hash
Hash[*val.map { |k, v|
[k, convert_bool(v)]
}.flatten]
else
val
end
end
end
end
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