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README.md

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+# Administrate::Field::Enum
+
+A plugin to show enum attributes in [Administrate].
+
+This repository is the first field plugin extracted out of Administrate.
+Although its structure may change,
+it's designed to act as a template for other Administrate field plugins.
+
+## FAQs
+
+**Q: How should I name my gem?**
+
+A: Administrate field gems must be named according to the [Rubygems naming guidelines].
+
+Essentially, name your gem after the field class that it defines.
+If there's a namespace in the class name, that gets translated to a dash (`-`) in the gem name.
+If the class name is CamelCased, that translates to an underscore (`_`) in the gem name.
+
+Since all administrate field gems are under the namespace `Administrate::Field`,
+every field gem name should start with the prefix `administrate-field-`.
+
+Here are some examples (these don't correspond to actual gems):
+
+| Gem Name | Field Name |
+|----------------------------|------------------------------|
+| `administrate-field-enum` | `Administrate::Field::Enum` |
+| `administrate-field-file_upload` | `Administrate::Field::FileUpload` |
+| `administrate-field-geocoding-region` | `Administrate::Field::Geocoding::Region` |
+| `administrate-field-geocoding-geo_json` | `Administrate::Field::Geocoding::GeoJson` |
+
+[Rubygems naming guidelines]: http://guides.rubygems.org/name-your-gem/
+
+[Administrate]: https://github.com/thoughtbot/administrate

administrate-field-enum.gemspec

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+$:.push File.expand_path('../lib', __FILE__)
+
+require 'administrate/field/enum'
+
+Gem::Specification.new do |gem|
+  gem.name = 'administrate-field-enum'
+  gem.version = Administrate::Field::Enum::VERSION
+  gem.authors = ['Balbina Santana']
+  gem.email = ['[email protected]']
+  gem.homepage = 'https://github.com/DisruptiveAngels/administrate_field_enum'
+  gem.summary = 'Enum field plugin for Administrate'
+  gem.description = gem.summary
+  gem.license = 'MIT'
+
+  gem.require_paths = ['lib']
+  gem.files = `git ls-files`.split('\n')
+  gem.test_files = `git ls-files -- {test,spec,features}/*`.split('\n')
+
+  gem.add_dependency 'administrate', '>= 0.2.0.rc1', '< 0.3.0'
+  gem.add_dependency 'rails', '~> 4.2', '< 5.1'
+end

app/views/fields/enum/_form.html.erb

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+<%#
+# Enum Form Partial
+
+This partial renders an input element for enum attributes.
+By default, the input is a select field for the enum attributes.
+
+## Local variables:
+
+- `f`:
+  A Rails form generator, used to help create the appropriate input fields.
+- `field`:
+  An instance of [Administrate::Field::Enum][1].
+  A wrapper around the enum attributes pulled from the model.
+
+%>
+
+<div class="field-unit__label">
+  <%= f.label field.attribute %>
+</div>
+<div class="field-unit__field">
+  <%= f.select(
+  field.attribute,
+  options_for_select(
+  f.object.class.public_send(field.attribute.to_s.pluralize)
+  .map { |k, v| [k.humanize, k] },
+  f.object.public_send(field.attribute.to_s)),
+  include_blank: false) %>
+</div>

app/views/fields/enum/_index.html.erb

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+<%#
+# Enum Index Partial
+
+This partial renders an enum attribute
+to be displayed on a resource's index page.
+
+By default, the attribute is rendered as a text tag.
+
+## Local variables:
+
+- `field`:
+  An instance of [Administrate::Field::Enum][1].
+  A wrapper around the enum attributes pulled from the model.
+
+%>
+
+<%= field.to_s %>

app/views/fields/enum/_show.html.erb

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+<%#
+# Enum Show Partial
+
+This partial renders an enum attribute,
+to be displayed on a resource's show page.
+
+By default, the attribute is rendered as a text tag.
+
+## Local variables:
+
+- `field`:
+  An instance of [Administrate::Field::Enum][1].
+  A wrapper around the enum attributes pulled from the model.
+
+%>
+
+<%= field.to_s %>

lib/administrate/field/enum.rb

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+require 'administrate/field/base'
+require 'rails'
+
+module Administrate
+  module Field
+    class Enum < Administrate::Field::Base
+      VERSION = '0.0.1'
+
+      class Engine < ::Rails::Engine
+      end
+    end
+  end
+end

spec/lib/administrate/field/enum_spec.rb

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+require 'administrate/field/enum'
+
+describe Administrate::Field::Enum do
+  describe '#to_partial_path' do
+    it 'returns a partial based on the page being rendered' do
+      page = :show
+      field = Administrate::Field::Enum.new(:status, 'status', page)
+
+      path = field.to_partial_path
+
+      expect(path).to eq('/fields/enum/#{page}')
+    end
+  end
+end