Annotate (aka AnnotateModels)

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_bot 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.

Upgrading to 3.X and annotate models not working?

In versions 2.7.X the annotate gem defaulted to annotating models if no arguments were passed in. The annotate gem by default would not allow for routes and models to be annotated together. A change was added in #647. You can read more here.

There are a few ways of fixing this:

If using CLI explicitly pass in models flag using --models

OR

a) Running rails g annotate:install will overwrite your defaults with the annotating models option set to 'true'.

b) In lib/tasks/auto_annotate_models.rake add the models key-value option:

    Annotate.set_defaults(
      ...
      'models'                      => 'true',
      ...

Install

Into Gemfile from rubygems.org:

group :development do
  gem 'annotate'
end

Into Gemfile from Github:

group :development do
  gem 'annotate', git: 'https://github.com/ctran/annotate_models.git'
end

Into environment gems from rubygems.org:

gem install annotate

Into environment gems from Github checkout:

git clone https://github.com/ctran/annotate_models.git annotate_models
cd annotate_models
rake gem
gem install dist/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 --models --exclude fixtures

To annotate just your models:

annotate --models

To annotate routes.rb:

annotate --routes

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

annotate --delete

To remove routes.rb annotations:

annotate --routes --delete

To automatically annotate every time you run db:migrate, either run rails g annotate:install or add Annotate.load_tasks to your Rakefile.

See the configuration in Rails section for more info.

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.

The generated rakefile lib/tasks/auto_annotate_models.rake also contains Annotate.load_tasks. This adds a few rake tasks which duplicate command-line functionality:

rake annotate_models                          # Add schema information (as comments) to model and fixture files
rake annotate_routes                          # Adds the route map to routes.rb
rake remove_annotation                        # Remove schema information from model and fixture files

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:

ANNOTATE_SKIP_ON_DB_MIGRATE=1 rake db:migrate

Options

Usage: annotate [options] [model_file]*
        --additional-file-patterns   Additional file paths or globs to annotate, separated by commas (e.g. `/foo/bar/%model_name%/*.rb,/baz/%model_name%.rb`)
    -d, --delete                     Remove annotations from all model files or the routes.rb file
    -p [before|top|after|bottom],    Place the annotations at the top (before) or the bottom (after) of the model/test/fixture/factory/route/serializer file(s)
        --position
        --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'
        --models                     Annotate ActiveRecord models
    -a, --active-admin               Annotate active_admin models
    -v, --version                    Show the current version of this gem
    -m, --show-migration             Include the migration version number in the annotation
    -c, --show-check-constraints     List the table's check constraints in the annotation
    -k, --show-foreign-keys          List the table's foreign key constraints in the annotation
        --ck, --complete-foreign-keys
                                     Complete foreign key names in the annotation
    -i, --show-indexes               List the table's database indexes 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 commas
        --root-dir dir               Annotate files stored within root dir projects, separate multiple dirs with commas
        --ignore-model-subdirects    Ignore subdirectories of the models directory
        --sort                       Sort columns alphabetically, rather than in creation order
        --classified-sort            Sort columns alphabetically, but first goes id, then the rest columns, then the timestamp columns and then the association columns
    -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|yard|markdown],    Render Schema Infomation as plain/RDoc/YARD/Markdown
        --format
        --force                      Force new annotations even if there are no changes.
        --frozen                     Do not allow to change annotations. Exits non-zero if there are going to be changes to files.
        --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 (e.g. `annotate -I '^(id|updated_at|created_at)'`)
        --ignore-routes REGEX        don't annotate routes that match a given REGEX (e.g. `annotate -I '(mobile|resque|pghero)'`)_
        --hide-limit-column-types VALUES
                                     don't show limit for given column types, separated by commas (e.g. `integer,boolean,text`)
        --hide-default-column-types VALUES
                                     don't show default for given column types, separated by commas (e.g. `json,jsonb,hstore`)
        --ignore-unknown-models      don't display warnings for bad model files
        --with-comment               include database comments in model annotations
        --with-comment-column        include database comments in model annotations, as its own column, after all others

Option: `additional_file_patterns`

CLI: --additional-file-patterns
Ruby: :additional_file_patterns

Provide additional paths for the gem to annotate. These paths can include globs. It is recommended to use absolute paths. Here are some examples:

/app/lib/decorates/%MODEL_NAME%/*.rb
/app/lib/forms/%PLURALIZED_MODEL_NAME%/**/*.rb
/app/lib/forms/%TABLE_NAME%/*.rb

The appropriate model will be inferred using the %*% syntax, annotating any matching files. It works with existing filename resolutions (options for which can be found in the resolve_filename method of annotate_models.rb).

When using in a Rails config, you can use the following:

File.join(Rails.application.root, 'app/lib/forms/%PLURALIZED_MODEL_NAME%/***/**.rb')

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.

Links

License

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

Authors

See AUTHORS.md.

License

Kaligo/annotate_models

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