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move princaly & dynamic_form to gems

master
Alexander Negoda 2012-07-21 00:04:15 +04:00
parent 3ae36b6689
commit 0b7628dc95
17 changed files with 38 additions and 1030 deletions
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6
Gemfile
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@ -1,11 +1,13 @@
source 'http://rubygems.org'
gem 'rails', '3.2.3'
gem 'rails', '3.2.6'
gem 'authlogic'
gem 'mime-types', :require => 'mime/types'
gem 'carrierwave', '0.6.1'
gem 'carrierwave', '0.6.2'
gem 'dynamic_form'
gem 'princely'
# -- Heroku
#gem 'heroku'

64
Gemfile.lock
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@ -1,31 +1,31 @@
GEM
remote: http://rubygems.org/
specs:
actionmailer (3.2.3)
actionpack (= 3.2.3)
actionmailer (3.2.6)
actionpack (= 3.2.6)
mail (~> 2.4.4)
actionpack (3.2.3)
activemodel (= 3.2.3)
activesupport (= 3.2.3)
actionpack (3.2.6)
activemodel (= 3.2.6)
activesupport (= 3.2.6)
builder (~> 3.0.0)
erubis (~> 2.7.0)
journey (~> 1.0.1)
rack (~> 1.4.0)
rack-cache (~> 1.2)
rack-test (~> 0.6.1)
sprockets (~> 2.1.2)
activemodel (3.2.3)
activesupport (= 3.2.3)
sprockets (~> 2.1.3)
activemodel (3.2.6)
activesupport (= 3.2.6)
builder (~> 3.0.0)
activerecord (3.2.3)
activemodel (= 3.2.3)
activesupport (= 3.2.3)
activerecord (3.2.6)
activemodel (= 3.2.6)
activesupport (= 3.2.6)
arel (~> 3.0.2)
tzinfo (~> 0.3.29)
activeresource (3.2.3)
activemodel (= 3.2.3)
activesupport (= 3.2.3)
activesupport (3.2.3)
activeresource (3.2.6)
activemodel (= 3.2.6)
activesupport (= 3.2.6)
activesupport (3.2.6)
i18n (~> 0.6)
multi_json (~> 1.0)
arel (3.0.2)
@ -33,9 +33,10 @@ GEM
activerecord (>= 3.0.0)
activesupport (>= 3.0.0)
builder (3.0.0)
carrierwave (0.6.1)
carrierwave (0.6.2)
activemodel (>= 3.2.0)
activesupport (>= 3.2.0)
dynamic_form (1.1.4)
erubis (2.7.0)
excon (0.14.3)
fog (1.4.0)
@ -68,6 +69,7 @@ GEM
nokogiri (1.5.5)
pg (0.14.0)
polyglot (0.3.3)
princely (1.2.5)
rack (1.4.1)
rack-cache (1.2)
rack (>= 0.4)
@ -75,21 +77,21 @@ GEM
rack
rack-test (0.6.1)
rack (>= 1.0)
rails (3.2.3)
actionmailer (= 3.2.3)
actionpack (= 3.2.3)
activerecord (= 3.2.3)
activeresource (= 3.2.3)
activesupport (= 3.2.3)
rails (3.2.6)
actionmailer (= 3.2.6)
actionpack (= 3.2.6)
activerecord (= 3.2.6)
activeresource (= 3.2.6)
activesupport (= 3.2.6)
bundler (~> 1.0)
railties (= 3.2.3)
railties (3.2.3)
actionpack (= 3.2.3)
activesupport (= 3.2.3)
railties (= 3.2.6)
railties (3.2.6)
actionpack (= 3.2.6)
activesupport (= 3.2.6)
rack-ssl (~> 1.3.2)
rake (>= 0.8.7)
rdoc (~> 3.4)
thor (~> 0.14.6)
thor (>= 0.14.6, < 2.0)
rake (0.9.2.2)
rdoc (3.12)
json (~> 1.4)
@ -102,7 +104,7 @@ GEM
sqlite3-ruby (1.3.3)
sqlite3 (>= 1.3.3)
subexec (0.2.2)
thor (0.14.6)
thor (0.15.4)
tilt (1.3.3)
treetop (1.4.10)
polyglot
@ -114,11 +116,13 @@ PLATFORMS
DEPENDENCIES
authlogic
carrierwave (= 0.6.1)
carrierwave (= 0.6.2)
dynamic_form
fog
mime-types
mini_exiftool
mini_magick
pg
rails (= 3.2.3)
princely
rails (= 3.2.6)
sqlite3-ruby

20
vendor/plugins/dynamic_form/MIT-LICENSE vendored
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@ -1,20 +0,0 @@
Copyright (c) 2010 David Heinemeier Hansson
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.

13
vendor/plugins/dynamic_form/README vendored
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@ -1,13 +0,0 @@
DynamicForm
===========
DynamicForm holds a few helpers method to help you deal with your models, they are:
* input(record, method, options = {})
* form(record, options = {})
* error_message_on(object, method, options={})
* error_messages_for(record, options={})
It also adds f.error_messages and f.error_messages_on to your form builders.
Copyright (c) 2010 David Heinemeier Hansson, released under the MIT license

10
vendor/plugins/dynamic_form/Rakefile vendored
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@ -1,10 +0,0 @@
require 'rake/testtask'
desc 'Default: run unit tests.'
task :default => :test
desc 'Test the active_model_helper plugin.'
Rake::TestTask.new(:test) do |t|
t.libs << 'test'
t.pattern = 'test/**/*_test.rb'
end

5
vendor/plugins/dynamic_form/init.rb vendored
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@ -1,5 +0,0 @@
require 'action_view/helpers/dynamic_form'
class ActionView::Base
include DynamicForm
end

300
vendor/plugins/dynamic_form/lib/action_view/helpers/dynamic_form.rb vendored
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require 'action_view/helpers'
require 'active_support/i18n'
require 'active_support/core_ext/enumerable'
require 'active_support/core_ext/object/blank'
module ActionView
module Helpers
# The Active Record Helper makes it easier to create forms for records kept in instance variables. The most far-reaching is the +form+
# method that creates a complete form for all the basic content types of the record (not associations or aggregations, though). This
# is a great way of making the record quickly available for editing, but likely to prove lackluster for a complicated real-world form.
# In that case, it's better to use the +input+ method and the specialized +form+ methods in link:classes/ActionView/Helpers/FormHelper.html
module DynamicForm
# Returns a default input tag for the type of object returned by the method. For example, if <tt>@post</tt>
# has an attribute +title+ mapped to a +VARCHAR+ column that holds "Hello World":
#
# input("post", "title")
# # => <input id="post_title" name="post[title]" size="30" type="text" value="Hello World" />
def input(record_name, method, options = {})
InstanceTag.new(record_name, method, self).to_tag(options)
end
# Returns an entire form with all needed input tags for a specified Active Record object. For example, if <tt>@post</tt>
# has attributes named +title+ of type +VARCHAR+ and +body+ of type +TEXT+ then
#
# form("post")
#
# would yield a form like the following (modulus formatting):
#
# <form action='/posts/create' method='post'>
# <p>
# <label for="post_title">Title</label><br />
# <input id="post_title" name="post[title]" size="30" type="text" value="Hello World" />
# </p>
# <p>
# <label for="post_body">Body</label><br />
# <textarea cols="40" id="post_body" name="post[body]" rows="20"></textarea>
# </p>
# <input name="commit" type="submit" value="Create" />
# </form>
#
# It's possible to specialize the form builder by using a different action name and by supplying another
# block renderer. For example, if <tt>@entry</tt> has an attribute +message+ of type +VARCHAR+ then
#
# form("entry",
# :action => "sign",
# :input_block => Proc.new { |record, column|
# "#{column.human_name}: #{input(record, column.name)}<br />"
# })
#
# would yield a form like the following (modulus formatting):
#
# <form action="/entries/sign" method="post">
# Message:
# <input id="entry_message" name="entry[message]" size="30" type="text" /><br />
# <input name="commit" type="submit" value="Sign" />
# </form>
#
# It's also possible to add additional content to the form by giving it a block, such as:
#
# form("entry", :action => "sign") do |form|
# form << content_tag("b", "Department")
# form << collection_select("department", "id", @departments, "id", "name")
# end
#
# The following options are available:
#
# * <tt>:action</tt> - The action used when submitting the form (default: +create+ if a new record, otherwise +update+).
# * <tt>:input_block</tt> - Specialize the output using a different block, see above.
# * <tt>:method</tt> - The method used when submitting the form (default: +post+).
# * <tt>:multipart</tt> - Whether to change the enctype of the form to "multipart/form-data", used when uploading a file (default: +false+).
# * <tt>:submit_value</tt> - The text of the submit button (default: "Create" if a new record, otherwise "Update").
def form(record_name, options = {})
record = instance_variable_get("@#{record_name}")
record = convert_to_model(record)
options = options.symbolize_keys
options[:action] ||= record.persisted? ? "update" : "create"
action = url_for(:action => options[:action], :id => record)
submit_value = options[:submit_value] || options[:action].gsub(/[^\w]/, '').capitalize
contents = form_tag({:action => action}, :method =>(options[:method] || 'post'), :enctype => options[:multipart] ? 'multipart/form-data': nil)
contents.safe_concat hidden_field(record_name, :id) if record.persisted?
contents.safe_concat all_input_tags(record, record_name, options)
yield contents if block_given?
contents.safe_concat submit_tag(submit_value)
contents.safe_concat('</form>')
end
# Returns a string containing the error message attached to the +method+ on the +object+ if one exists.
# This error message is wrapped in a <tt>DIV</tt> tag by default or with <tt>:html_tag</tt> if specified,
# which can be extended to include a <tt>:prepend_text</tt> and/or <tt>:append_text</tt> (to properly explain
# the error), and a <tt>:css_class</tt> to style it accordingly. +object+ should either be the name of an
# instance variable or the actual object. The method can be passed in either as a string or a symbol.
# As an example, let's say you have a model <tt>@post</tt> that has an error message on the +title+ attribute:
#
# <%= error_message_on "post", "title" %>
# # => <div class="formError">can't be empty</div>
#
# <%= error_message_on @post, :title %>
# # => <div class="formError">can't be empty</div>
#
# <%= error_message_on "post", "title",
# :prepend_text => "Title simply ",
# :append_text => " (or it won't work).",
# :html_tag => "span",
# :css_class => "inputError" %>
# # => <span class="inputError">Title simply can't be empty (or it won't work).</span>
def error_message_on(object, method, *args)
options = args.extract_options!
unless args.empty?
ActiveSupport::Deprecation.warn('error_message_on takes an option hash instead of separate ' +
'prepend_text, append_text, html_tag, and css_class arguments', caller)
options[:prepend_text] = args[0] || ''
options[:append_text] = args[1] || ''
options[:html_tag] = args[2] || 'div'
options[:css_class] = args[3] || 'formError'
end
options.reverse_merge!(:prepend_text => '', :append_text => '', :html_tag => 'div', :css_class => 'formError')
object = convert_to_model(object)
if (obj = (object.respond_to?(:errors) ? object : instance_variable_get("@#{object}"))) &&
(errors = obj.errors[method]).presence
content_tag(options[:html_tag],
(options[:prepend_text].html_safe << errors.first).safe_concat(options[:append_text]),
:class => options[:css_class]
)
else
''
end
end
# Returns a string with a <tt>DIV</tt> containing all of the error messages for the objects located as instance variables by the names
# given. If more than one object is specified, the errors for the objects are displayed in the order that the object names are
# provided.
#
# This <tt>DIV</tt> can be tailored by the following options:
#
# * <tt>:header_tag</tt> - Used for the header of the error div (default: "h2").
# * <tt>:id</tt> - The id of the error div (default: "errorExplanation").
# * <tt>:class</tt> - The class of the error div (default: "errorExplanation").
# * <tt>:object</tt> - The object (or array of objects) for which to display errors,
# if you need to escape the instance variable convention.
# * <tt>:object_name</tt> - The object name to use in the header, or any text that you prefer.
# If <tt>:object_name</tt> is not set, the name of the first object will be used.
# * <tt>:header_message</tt> - The message in the header of the error div. Pass +nil+
# or an empty string to avoid the header message altogether. (Default: "X errors
# prohibited this object from being saved").
# * <tt>:message</tt> - The explanation message after the header message and before
# the error list. Pass +nil+ or an empty string to avoid the explanation message
# altogether. (Default: "There were problems with the following fields:").
#
# To specify the display for one object, you simply provide its name as a parameter.
# For example, for the <tt>@user</tt> model:
#
# error_messages_for 'user'
#
# You can also supply an object:
#
# error_messages_for @user
#
# This will use the last part of the model name in the presentation. For instance, if
# this is a MyKlass::User object, this will use "user" as the name in the String. This
# is taken from MyKlass::User.model_name.human, which can be overridden.
#
# To specify more than one object, you simply list them; optionally, you can add an extra <tt>:object_name</tt> parameter, which
# will be the name used in the header message:
#
# error_messages_for 'user_common', 'user', :object_name => 'user'
#
# You can also use a number of objects, which will have the same naming semantics
# as a single object.
#
# error_messages_for @user, @post
#
# If the objects cannot be located as instance variables, you can add an extra <tt>:object</tt> parameter which gives the actual
# object (or array of objects to use):
#
# error_messages_for 'user', :object => @question.user
#
# NOTE: This is a pre-packaged presentation of the errors with embedded strings and a certain HTML structure. If what
# you need is significantly different from the default presentation, it makes plenty of sense to access the <tt>object.errors</tt>
# instance yourself and set it up. View the source of this method to see how easy it is.
def error_messages_for(*params)
options = params.extract_options!.symbolize_keys
objects = Array.wrap(options.delete(:object) || params).map do |object|
object = instance_variable_get("@#{object}") unless object.respond_to?(:to_model)
object = convert_to_model(object)
if object.class.respond_to?(:model_name)
options[:object_name] ||= object.class.model_name.human.downcase
end
object
end
objects.compact!
count = objects.inject(0) {|sum, object| sum + object.errors.count }
unless count.zero?
html = {}
[:id, :class].each do |key|
if options.include?(key)
value = options[key]
html[key] = value unless value.blank?
else
html[key] = 'errorExplanation'
end
end
options[:object_name] ||= params.first
I18n.with_options :locale => options[:locale], :scope => [:errors, :template] do |locale|
header_message = if options.include?(:header_message)
options[:header_message]
else
locale.t :header, :count => count, :model => options[:object_name].to_s.gsub('_', ' ')
end
message = options.include?(:message) ? options[:message] : locale.t(:body)
error_messages = objects.sum do |object|
object.errors.full_messages.map do |msg|
content_tag(:li, msg)
end
end.join.html_safe
contents = ''
contents << content_tag(options[:header_tag] || :h2, header_message) unless header_message.blank?
contents << content_tag(:p, message) unless message.blank?
contents << content_tag(:ul, error_messages)
content_tag(:div, contents.html_safe, html)
end
else
''
end
end
private
def all_input_tags(record, record_name, options)
input_block = options[:input_block] || default_input_block
record.class.content_columns.collect{ |column| input_block.call(record_name, column) }.join("\n")
end
def default_input_block
Proc.new { |record, column| %(<p><label for="#{record}_#{column.name}">#{column.human_name}</label><br />#{input(record, column.name)}</p>) }
end
module InstanceTagMethods
def to_tag(options = {})
case column_type
when :string
field_type = @method_name.include?("password") ? "password" : "text"
to_input_field_tag(field_type, options)
when :text
to_text_area_tag(options)
when :integer, :float, :decimal
to_input_field_tag("text", options)
when :date
to_date_select_tag(options)
when :datetime, :timestamp
to_datetime_select_tag(options)
when :time
to_time_select_tag(options)
when :boolean
to_boolean_select_tag(options)
end
end
def column_type
object.send(:column_for_attribute, @method_name).type
end
end
module FormBuilderMethods
def error_message_on(method, *args)
@template.error_message_on(@object || @object_name, method, *args)
end
def error_messages(options = {})
@template.error_messages_for(@object_name, objectify_options(options))
end
end
end
class InstanceTag
include DynamicForm::InstanceTagMethods
end
class FormBuilder
include DynamicForm::FormBuilderMethods
end
end
end
I18n.load_path << File.expand_path("../../locale/en.yml", __FILE__)

8
vendor/plugins/dynamic_form/lib/action_view/locale/en.yml vendored
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@ -1,8 +0,0 @@
en:
errors:
template:
header:
one: "1 error prohibited this %{model} from being saved"
other: "%{count} errors prohibited this %{model} from being saved"
# The variable :count is also available
body: "There were problems with the following fields:"

42
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@ -1,42 +0,0 @@
require 'test_helper'
class DynamicFormI18nTest < Test::Unit::TestCase
include ActionView::Context
include ActionView::Helpers::DynamicForm
attr_reader :request
def setup
@object = stub :errors => stub(:count => 1, :full_messages => ['full_messages'])
@object.stubs :to_model => @object
@object.stubs :class => stub(:model_name => stub(:human => ""))
@object_name = 'book_seller'
@object_name_without_underscore = 'book seller'
stubs(:content_tag).returns 'content_tag'
I18n.stubs(:t).with(:'header', :locale => 'en', :scope => [:errors, :template], :count => 1, :model => '').returns "1 error prohibited this from being saved"
I18n.stubs(:t).with(:'body', :locale => 'en', :scope => [:errors, :template]).returns 'There were problems with the following fields:'
end
def test_error_messages_for_given_a_header_option_it_does_not_translate_header_message
I18n.expects(:t).with(:'header', :locale => 'en', :scope => [:errors, :template], :count => 1, :model => '').never
error_messages_for(:object => @object, :header_message => 'header message', :locale => 'en')
end
def test_error_messages_for_given_no_header_option_it_translates_header_message
I18n.expects(:t).with(:'header', :locale => 'en', :scope => [:errors, :template], :count => 1, :model => '').returns 'header message'
error_messages_for(:object => @object, :locale => 'en')
end
def test_error_messages_for_given_a_message_option_it_does_not_translate_message
I18n.expects(:t).with(:'body', :locale => 'en', :scope => [:errors, :template]).never
error_messages_for(:object => @object, :message => 'message', :locale => 'en')
end
def test_error_messages_for_given_no_message_option_it_translates_message
I18n.expects(:t).with(:'body', :locale => 'en', :scope => [:errors, :template]).returns 'There were problems with the following fields:'
error_messages_for(:object => @object, :locale => 'en')
end
end

370
vendor/plugins/dynamic_form/test/dynamic_form_test.rb vendored
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9
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require 'rubygems'
require 'test/unit'
require 'active_support'
require 'active_support/core_ext'
require 'action_view'
require 'action_controller'
require 'action_controller/test_case'
require 'active_model'
require 'action_view/helpers/dynamic_form'

20
vendor/plugins/princely/MIT-LICENSE vendored
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@ -1,20 +0,0 @@
Copyright (c) 2007 [name of plugin creator]
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.

50
vendor/plugins/princely/README vendored
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@ -1,50 +0,0 @@
Princely
========
Princely is a simple wrapper for the Prince XML PDF generation library
(http://www.princexml.com). It is almost entirely based on the SubImage
Prince library found on this blog post:
http://sublog.subimage.com/articles/2007/05/29/html-css-to-pdf-using-ruby-on-rails
I have taken the helpers and made them a little bit more generalized and
reusable, and created a render option set for pdf generation. The plugin
will also automatically register the PDF MimeType so that you can use
pdf in controller respond_to blocks.
Example
=======
class Provider::EstimatesController < Provider::BaseController
def show
respond_to do |format|
format.html
format.pdf do
render :pdf => "file_name",
:template => "controller/action.pdf.erb",
:stylesheets => ["application","prince"]
:layout => "pdf"
end
end
end
def pdf
make_and_send_pdf("file_name")
end
end
Render Defaults
===============
The defaults for the render options are as follows:
layout: false
template: the template for the current controller/action
stylesheets: none
Resources
=========
Trac: http://trac.intridea.com/trac/public/
Copyright (c) 2007 Michael Bleigh and Intridea, Inc., released under the MIT license

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require 'rake'
require 'rake/testtask'
require 'rake/rdoctask'
desc 'Default: run unit tests.'
task :default => :test
desc 'Generate documentation for the princely plugin.'
Rake::RDocTask.new(:rdoc) do |rdoc|
rdoc.rdoc_dir = 'rdoc'
rdoc.title = 'Princely'
rdoc.options << '--line-numbers' << '--inline-source'
rdoc.rdoc_files.include('README')
rdoc.rdoc_files.include('lib/**/*.rb')
end

6
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require 'prince'
require 'pdf_helper'
Mime::Type.register 'application/pdf', :pdf
ActionController::Base.send(:include, PdfHelper)

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@ -1,55 +0,0 @@
module PdfHelper
require 'prince'
def self.included(base)
base.class_eval do
alias_method_chain :render, :princely
end
end
def render_with_princely(options = nil, *args, &block)
if options.is_a?(Hash) && options.has_key?(:pdf)
options[:name] ||= options.delete(:pdf)
make_and_send_pdf(options.delete(:name), options)
else
render_without_princely(options, *args, &block)
end
end
private
def make_pdf(options = {})
options[:stylesheets] ||= []
options[:layout] ||= false
options[:template] ||= File.join(controller_path,action_name)
prince = Prince.new()
# Sets style sheets on PDF renderer
prince.add_style_sheets(*options[:stylesheets].collect{|style| stylesheet_file_path(style)})
html_string = render_to_string(:template => options[:template], :layout => options[:layout])
# Make all paths relative, on disk paths...
html_string.gsub!(".com:/",".com/") # strip out bad attachment_fu URLs
html_string.gsub!( /src=["']+([^:]+?)["']/i ) { |m| "src=\"#{RAILS_ROOT}/public/" + $1 + '"' } # re-route absolute paths
# Remove asset ids on images with a regex
html_string.gsub!( /src=["'](\S+\?\d*)["']/i ) { |m| 'src="' + $1.split('?').first + '"' }
# Send the generated PDF file from our html string.
return prince.pdf_from_string(html_string)
end
def make_and_send_pdf(pdf_name, options = {})
send_data(
make_pdf(options),
:filename => pdf_name + ".pdf",
:type => 'application/pdf'
)
end
def stylesheet_file_path(stylesheet)
stylesheet = stylesheet.to_s.gsub(".css","")
File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR,"#{stylesheet}.css")
end
end

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vendor/plugins/princely/lib/prince.rb vendored
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@ -1,75 +0,0 @@
# Prince XML Ruby interface.
# http://www.princexml.com
#
# Library by Subimage Interactive - http://www.subimage.com
#
#
# USAGE
# -----------------------------------------------------------------------------
# prince = Prince.new()
# html_string = render_to_string(:template => 'some_document')
# send_data(
# prince.pdf_from_string(html_string),
# :filename => 'some_document.pdf'
# :type => 'application/pdf'
# )
#
require 'logger'
class Prince
attr_accessor :exe_path, :style_sheets, :log_file, :logger
# Initialize method
#
def initialize()
# Finds where the application lives, so we can call it.
@exe_path = `which prince`.chomp
@style_sheets = ''
@log_file = "#{Rails.root.to_s}/log/prince.log"
@logger = RAILS_DEFAULT_LOGGER
end
# Sets stylesheets...
# Can pass in multiple paths for css files.
#
def add_style_sheets(*sheets)
for sheet in sheets do
@style_sheets << " -s #{sheet} "
end
end
# Returns fully formed executable path with any command line switches
# we've set based on our variables.
#
def exe_path
# Add any standard cmd line arguments we need to pass
@exe_path << " --input=html --server --log=#{@log_file} "
@exe_path << @style_sheets
return @exe_path
end
# Makes a pdf from a passed in string.
#
# Returns PDF as a stream, so we can use send_data to shoot
# it down the pipe using Rails.
#
def pdf_from_string(string)
path = self.exe_path()
# Don't spew errors to the standard out...and set up to take IO
# as input and output
path << ' --silent - -o -'
# Show the command used...
logger.info "\n\nPRINCE XML PDF COMMAND"
logger.info path
logger.info ''
# Actually call the prince command, and pass the entire data stream back.
pdf = IO.popen(path, "w+")
pdf.puts(string)
pdf.close_write
result = pdf.gets(nil)
pdf.close_read
return result
end
end