initial commit

.gitignore

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+*.gem
+*.rbc
+.bundle
+.config
+.yardoc
+Gemfile.lock
+InstalledFiles
+_yardoc
+coverage
+doc/
+lib/bundler/man
+pkg
+rdoc
+spec/reports
+test/tmp
+test/version_tmp
+tmp

Gemfile

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+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in formtastic-better_file_inputs.gemspec
+gemspec

LICENSE

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+Copyright (c) 2012 John Bintz
+
+MIT License
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+Built for Active Admin primarily. You get the following:
+
+``` ruby
+= f.input :file, :as => :file_field
+= f.input :image, :as => :image_field
+```
+
+You can remove the existing file, and get a preview of uploaded images. Will add more as I go.
+

Rakefile

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+#!/usr/bin/env rake
+require "bundler/gem_tasks"

formtastic-better_file_inputs.gemspec

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+# -*- encoding: utf-8 -*-
+require File.expand_path('../lib/formtastic-better_file_inputs/version', __FILE__)
+
+Gem::Specification.new do |gem|
+  gem.authors       = ["John Bintz"]
+  gem.email         = ["john@coswellproductions.com"]
+  gem.description   = %q{TODO: Write a gem description}
+  gem.summary       = %q{TODO: Write a gem summary}
+  gem.homepage      = ""
+
+  gem.files         = `git ls-files`.split($\)
+  gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
+  gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
+  gem.name          = "formtastic-better_file_inputs"
+  gem.require_paths = ["lib"]
+  gem.version       = Formtastic::BetterFileInputs::VERSION
+end

lib/formtastic-better_file_inputs.rb

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+require "formtastic-better_file_inputs/version"
+require "formtastic-better_file_inputs/railtie" if defined?(Rails::Railtie)
+

lib/formtastic-better_file_inputs/file_field_input.rb

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+require 'delegate'
+
+class FileFieldInput < Formtastic::Inputs::FileInput
+  def file_field
+    builder.file_field(method, input_html_options)
+  end
+
+  def remove_checkbox
+    template.content_tag(:label) do
+      builder.check_box("remove_#{method}") << localized_string(method, " Remove", :"remove_#{method}")
+    end
+  end
+
+  def preview
+    ''
+  end
+
+  def url_display
+    template.content_tag(:div, @url) << template.content_tag(:br)
+  end
+
+  def existing_file_info
+    if @url = builder.object.send(method).url
+      preview << remove_checkbox << url_display
+    else
+      ''
+    end
+  end
+
+  def div_wrapper
+    template.content_tag(:div, :style => 'margin-left: 20%') do
+      file_field << existing_file_info.html_safe
+    end.html_safe
+  end
+
+  def to_html
+    input_wrapping do
+      label_html << div_wrapper
+    end
+  end
+end
+

lib/formtastic-better_file_inputs/image_field_input.rb

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+class ImageFieldInput < FileFieldInput
+  def preview
+    template.image_tag(@url, :height => 50)
+  end
+end
+

lib/formtastic-better_file_inputs/railtie.rb

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+module Formtastic
+  module BetterFileInputs
+    class Railtie < ::Rails::Railtie
+      initializer 'formtastic-better_file_inputs.initialize' do
+        if defined?(Formtastic::Inputs)
+          require 'formtastic-better_file_inputs/file_field_input'
+          require 'formtastic-better_file_inputs/image_field_input'
+        end
+      end
+    end
+  end
+end
+

lib/formtastic-better_file_inputs/version.rb

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+module Formtastic
+  module BetterFileInputs
+    VERSION = "0.0.1"
+  end
+end