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Annotate (aka AnnotateModels)

<img src=“https://badge.fury.io/rb/annotate.svg” alt=“Gem Version” /> <img src=“https://travis-ci.org/ctran/annotate_models.png” /> <img src=“https://gemnasium.com/ctran/annotate_models.png” />

Add a comment summarizing the current schema to the top or bottom of each of your…

  • ActiveRecord models

  • Fixture files

  • Tests and Specs

  • Object Daddy exemplars

  • Machinist blueprints

  • Fabrication fabricators

  • Thoughtbot’s factory_girl factories, i.e. the (spec|test)/factories/<model>_factory.rb files

  • routes.rb file (for Rails projects)

The schema comment looks like this:

# == Schema Info
#
# Table name: line_items
#
#  id                  :integer(11)    not null, primary key
#  quantity            :integer(11)    not null
#  product_id          :integer(11)    not null
#  unit_price          :float
#  order_id            :integer(11)
#

 class LineItem < ActiveRecord::Base
   belongs_to :product
  . . .

It also annotates geometrical columns, geom type and srid, when using SpatialAdapter, PostgisAdapter or PostGISAdapter:

# == Schema Info
#
# Table name: trips
#
#  local           :geometry        point, 4326
#  path            :geometry        line_string, 4326

Also, if you pass the -r option, it’ll annotate routes.rb with the output of +rake routes+.

Install

Into Gemfile from rubygems.org:

gem 'annotate', '~> 2.6.6'

Into Gemfile from Github:

gem 'annotate', github: 'ctran/annotate_models'

Into environment gems from rubygems.org:

gem install annotate

Into environment gems from Github checkout:

git clone git://github.com/ctran/annotate_models.git annotate_models
cd annotate_models
rake build
gem install pkg/annotate-*.gem

Usage

(If you used the Gemfile install, prefix the below commands with +bundle exec+.)

Usage in Rails

To annotate all your models, tests, fixtures, and factories:

cd /path/to/app
annotate

To annotate just your models, tests, and factories:

annotate --exclude fixtures

To annotate just your models:

annotate --exclude tests,fixtures,factories,serializers

To annotate routes.rb:

annotate --routes

To remove model/test/fixture/factory/serializer annotations:

annotate --delete

To remove routes.rb annotations:

annotate --routes --delete

Configuration

Usage Outside of Rails

Everything above applies, except that --routes is not meaningful, and you will probably need to explicitly set one or more --require option(s), and/or one or more --model-dir options to inform annotate about the structure of your project and help it bootstrap and load the relevant code.

Configuration

If you want to always skip annotations on a particular model, add this string anywhere in the file:

# -*- SkipSchemaAnnotations

Configuration in Rails

To generate a configuration file (in the form of a .rake file), to set default options:

rails g annotate:install

Edit this file to control things like output format, where annotations are added (top or bottom of file), and in which artifacts.

Rails Integration

By default, once you’ve generated a configuration file, annotate will be executed whenever you run +rake db:migrate+ (but only in development mode). If you want to disable this behavior permanently, edit the .rake file and change:

'skip_on_db_migrate'   => 'false',

To:

'skip_on_db_migrate'   => 'true',

If you want to run +rake db:migrate+ as a one-off without running annotate, you can do so with a simple environment variable, instead of editing the .rake file:

skip_on_db_migrate=1 rake db:migrate

Options

Usage: annotate [options] [model_file]*
    -d, --delete                     Remove annotations from all model files or the routes.rb file
    -p, --position [before|top|after|bottom]    Place the annotations at the top (before) or the bottom (after) of the model/test/fixture/factory/routes file(s)
        --pc, --position-in-class [before|top|after|bottom]
                                     Place the annotations at the top (before) or the bottom (after) of the model file
        --pf, --position-in-factory [before|top|after|bottom]
                                     Place the annotations at the top (before) or the bottom (after) of any factory files
        --px, --position-in-fixture [before|top|after|bottom]
                                     Place the annotations at the top (before) or the bottom (after) of any fixture files
        --pt, --position-in-test [before|top|after|bottom]
                                     Place the annotations at the top (before) or the bottom (after) of any test files
        --pr, --position-in-routes [before|top|after|bottom]
                                     Place the annotations at the top (before) or the bottom (after) of the routes.rb file
        --ps, --position-in-serializer [before|top|after|bottom]
                                     Place the annotations at the top (before) or the bottom (after) of the serializer files
        --w, --wrapper STR           Wrap annotation with the text passed as parameter.
                                     If --w option is used, the same text will be used as opening and closing
        --wo, --wrapper-open STR     Annotation wrapper opening.
        --wc, --wrapper-close STR    Annotation wrapper closing
    -r, --routes                     Annotate routes.rb with the output of 'rake routes'
    -v, --version                    Show the current version of this gem
    -m, --show-migration             Include the migration version number in the annotation
    -i, --show-indexes               List the table's database indexes in the annotation
    -k, --show-foreign-keys          List the table's foreign key constraints in the annotation
    -s, --simple-indexes             Concat the column's related indexes in the annotation
        --model-dir dir              Annotate model files stored in dir rather than app/models, separate multiple dirs with comas
        --ignore-model-subdirects    Ignore subdirectories of the models directory
        --sort                       Sort columns alphabetically, rather than in creation order
    -R, --require path               Additional file to require before loading models, may be used multiple times
    -e [tests,fixtures,factories,serializers],
        --exclude                    Do not annotate fixtures, test files, factories, and/or serializers
    -f [bare|rdoc|markdown],         Render Schema Infomation as plain/RDoc/Markdown
        --format
        --force                      Force new annotations even if there are no changes.
        --timestamp                  Include timestamp in (routes) annotation
        --trace                      If unable to annotate a file, print the full stack trace, not just the exception message.
    -I, --ignore-columns REGEX       don't annotate columns that match a given REGEX (i.e., `annotate -I '^(id|updated_at|created_at)'`

Sorting

By default, columns will be sorted in database order (i.e. the order in which migrations were run).

If you prefer to sort alphabetically so that the results of annotation are consistent regardless of what order migrations are executed in, use --sort.

Markdown

The format produced is actually MultiMarkdown, making use of the syntax extension for tables. It’s recommended you use kramdown as your parser if you want to use this format. If you’re using yard to generate documentation, specify a format of markdown with kramdown as the provider by adding this to your .yardopts file:

--markup markdown
--markup-provider kramdown

Be sure to add this to your Gemfile as well:

gem 'kramdown', :groups => [:development], :require => false

WARNING

Don’t add text after an automatically-created comment block. This tool will blow away the initial/final comment block in your models if it looks like it was previously added by this gem.

Be sure to check the changes that this tool makes! If you are using Git, you may simply check your project’s status after running annotate:

$ git status

If you are not using a VCS (like Git, Subversion or similar), please tread extra carefully, and consider using one.

License

Released under the same license as Ruby. No Support. No Warranty.

Authors

See AUTHORS.rdoc.

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Annotate ActiveRecord models as a gem

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