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-rw-r--r--actionview/lib/action_view/helpers/form_helper.rb18
-rw-r--r--actionview/lib/action_view/helpers/rendering_helper.rb2
-rw-r--r--actionview/lib/action_view/helpers/tags/file_field.rb15
-rw-r--r--actionview/lib/action_view/helpers/translation_helper.rb28
4 files changed, 43 insertions, 20 deletions
diff --git a/actionview/lib/action_view/helpers/form_helper.rb b/actionview/lib/action_view/helpers/form_helper.rb
index c4371dc705..8d78ba13d5 100644
--- a/actionview/lib/action_view/helpers/form_helper.rb
+++ b/actionview/lib/action_view/helpers/form_helper.rb
@@ -854,6 +854,24 @@ module ActionView
#
# file_field(:attachment, :file, class: 'file_input')
# # => <input type="file" id="attachment_file" name="attachment[file]" class="file_input" />
+ #
+ # ==== Gotcha
+ #
+ # The HTML specification says that when a file field is empty, web browsers
+ # do not send any value to the server. Unfortunately this introduces a
+ # gotcha: if a +User+ model has an +avatar+ field, and no file is selected,
+ # then the +avatar+ parameter is empty. Thus, any mass-assignment idiom like
+ #
+ # @user.update(params[:user])
+ #
+ # wouldn't update the +avatar+ field.
+ #
+ # To prevent this, the helper generates an auxiliary hidden field before
+ # every file field. The hidden field has the same name as the file one and
+ # a blank value.
+ #
+ # In case you don't want the helper to generate this hidden field you can
+ # specify the <tt>include_hidden: false</tt> option.
def file_field(object_name, method, options = {})
Tags::FileField.new(object_name, method, self, options).render
end
diff --git a/actionview/lib/action_view/helpers/rendering_helper.rb b/actionview/lib/action_view/helpers/rendering_helper.rb
index e11670e00d..827932d8e2 100644
--- a/actionview/lib/action_view/helpers/rendering_helper.rb
+++ b/actionview/lib/action_view/helpers/rendering_helper.rb
@@ -32,7 +32,7 @@ module ActionView
view_renderer.render(self, options)
end
else
- view_renderer.render_partial(self, :partial => options, :locals => locals)
+ view_renderer.render_partial(self, :partial => options, :locals => locals, &block)
end
end
diff --git a/actionview/lib/action_view/helpers/tags/file_field.rb b/actionview/lib/action_view/helpers/tags/file_field.rb
index 476b820d84..e6a1d9c62d 100644
--- a/actionview/lib/action_view/helpers/tags/file_field.rb
+++ b/actionview/lib/action_view/helpers/tags/file_field.rb
@@ -2,6 +2,21 @@ module ActionView
module Helpers
module Tags # :nodoc:
class FileField < TextField # :nodoc:
+
+ def render
+ options = @options.stringify_keys
+
+ if options.fetch("include_hidden", true)
+ add_default_name_and_id(options)
+ options[:type] = "file"
+ tag("input", name: options["name"], type: "hidden", value: "") + tag("input", options)
+ else
+ options.delete("include_hidden")
+ @options = options
+
+ super
+ end
+ end
end
end
end
diff --git a/actionview/lib/action_view/helpers/translation_helper.rb b/actionview/lib/action_view/helpers/translation_helper.rb
index c2fda42396..8324f12a88 100644
--- a/actionview/lib/action_view/helpers/translation_helper.rb
+++ b/actionview/lib/action_view/helpers/translation_helper.rb
@@ -37,7 +37,8 @@ module ActionView
# you know what kind of output to expect when you call translate in a template.
def translate(key, options = {})
options = options.dup
- options[:default] = wrap_translate_defaults(options[:default]) if options[:default]
+ remaining_defaults = Array(options.delete(:default))
+ options[:default] = remaining_defaults.shift if remaining_defaults.first.kind_of? String
# If the user has specified rescue_format then pass it all through, otherwise use
# raise and do the work ourselves
@@ -62,10 +63,14 @@ module ActionView
I18n.translate(scope_key_by_partial(key), options)
end
rescue I18n::MissingTranslationData => e
- raise e if raise_error
+ if remaining_defaults.present?
+ translate remaining_defaults.shift, options.merge(default: remaining_defaults)
+ else
+ raise e if raise_error
- keys = I18n.normalize_keys(e.locale, e.key, e.options[:scope])
- content_tag('span', keys.last.to_s.titleize, :class => 'translation_missing', :title => "translation missing: #{keys.join('.')}")
+ keys = I18n.normalize_keys(e.locale, e.key, e.options[:scope])
+ content_tag('span', keys.last.to_s.titleize, :class => 'translation_missing', :title => "translation missing: #{keys.join('.')}")
+ end
end
alias :t :translate
@@ -94,21 +99,6 @@ module ActionView
def html_safe_translation_key?(key)
key.to_s =~ /(\b|_|\.)html$/
end
-
- def wrap_translate_defaults(defaults)
- new_defaults = []
- defaults = Array(defaults)
- while key = defaults.shift
- if key.is_a?(Symbol)
- new_defaults << lambda { |_, options| translate key, options.merge(:default => defaults) }
- break
- else
- new_defaults << key
- end
- end
-
- new_defaults
- end
end
end
end