diff options
Diffstat (limited to 'actionpack/lib/action_view/helpers/form_helper.rb')
| -rw-r--r-- | actionpack/lib/action_view/helpers/form_helper.rb | 387 |
1 files changed, 73 insertions, 314 deletions
diff --git a/actionpack/lib/action_view/helpers/form_helper.rb b/actionpack/lib/action_view/helpers/form_helper.rb index f22c466666..bdfef920c5 100644 --- a/actionpack/lib/action_view/helpers/form_helper.rb +++ b/actionpack/lib/action_view/helpers/form_helper.rb @@ -2,9 +2,10 @@ require 'cgi' require 'action_view/helpers/date_helper' require 'action_view/helpers/tag_helper' require 'action_view/helpers/form_tag_helper' +require 'action_view/helpers/active_model_helper' +require 'action_view/helpers/tags' require 'active_support/core_ext/class/attribute' require 'active_support/core_ext/hash/slice' -require 'active_support/core_ext/module/method_names' require 'active_support/core_ext/object/blank' require 'active_support/core_ext/string/output_safety' require 'active_support/core_ext/array/extract_options' @@ -158,6 +159,9 @@ module ActionView # * <tt>:url</tt> - The URL the form is submitted to. It takes the same # fields you pass to +url_for+ or +link_to+. In particular you may pass # here a named route directly as well. Defaults to the current action. + # * <tt>:namespace</tt> - A namespace for your form to ensure uniqueness of + # id attributes on form elements. The namespace attribute will be prefixed + # with underscore on the generated HTML id. # * <tt>:html</tt> - Optional HTML attributes for the form tag. # # Also note that +form_for+ doesn't create an exclusive scope. It's still @@ -362,34 +366,33 @@ module ActionView else object = record.is_a?(Array) ? record.last : record object_name = options[:as] || ActiveModel::Naming.param_key(object) - apply_form_for_options!(record, options) + apply_form_for_options!(record, object, options) end options[:html][:remote] = options.delete(:remote) if options.has_key?(:remote) options[:html][:method] = options.delete(:method) if options.has_key?(:method) options[:html][:authenticity_token] = options.delete(:authenticity_token) - builder = options[:parent_builder] = instantiate_builder(object_name, object, options, &proc) + builder = options[:parent_builder] = instantiate_builder(object_name, object, options) fields_for = fields_for(object_name, object, options, &proc) default_options = builder.multipart? ? { :multipart => true } : {} - output = form_tag(options.delete(:url) || {}, default_options.merge!(options.delete(:html))) - output << fields_for - output.safe_concat('</form>') + default_options.merge!(options.delete(:html)) + + form_tag(options.delete(:url) || {}, default_options) { fields_for } end - def apply_form_for_options!(object_or_array, options) #:nodoc: - object = object_or_array.is_a?(Array) ? object_or_array.last : object_or_array + def apply_form_for_options!(record, object, options) #:nodoc: object = convert_to_model(object) as = options[:as] action, method = object.respond_to?(:persisted?) && object.persisted? ? [:edit, :put] : [:new, :post] options[:html].reverse_merge!( - :class => as ? "#{as}_#{action}" : dom_class(object, action), - :id => as ? "#{as}_#{action}" : dom_id(object, action), + :class => as ? "#{action}_#{as}" : dom_class(object, action), + :id => as ? "#{action}_#{as}" : [options[:namespace], dom_id(object, action)].compact.join("_").presence, :method => method ) - options[:url] ||= polymorphic_path(object_or_array, :format => options.delete(:format)) + options[:url] ||= polymorphic_path(record, :format => options.delete(:format)) end private :apply_form_for_options! @@ -598,7 +601,7 @@ module ActionView # ... # <% end %> def fields_for(record_name, record_object = nil, options = {}, &block) - builder = instantiate_builder(record_name, record_object, options, &block) + builder = instantiate_builder(record_name, record_object, options) output = capture(builder, &block) output.concat builder.hidden_field(:id) if output && options[:hidden_field_id] && !builder.emitted_hidden_id? output @@ -649,19 +652,10 @@ module ActionView # # => <label for="post_privacy_public">Public Post</label> # # label(:post, :terms) do - # 'Accept <a href="/terms">Terms</a>.' + # 'Accept <a href="/terms">Terms</a>.'.html_safe # end def label(object_name, method, content_or_options = nil, options = nil, &block) - content_is_options = content_or_options.is_a?(Hash) - if content_is_options || block_given? - options = content_or_options if content_is_options - text = nil - else - text = content_or_options - end - - options ||= {} - InstanceTag.new(object_name, method, self, options.delete(:object)).to_label_tag(text, options, &block) + Tags::Label.new(object_name, method, self, content_or_options, options).render(&block) end # Returns an input tag of the "text" type tailored for accessing a specified attribute (identified by +method+) on an object @@ -683,7 +677,7 @@ module ActionView # # => <input type="text" id="snippet_code" name="snippet[code]" size="20" value="#{@snippet.code}" class="code_input" /> # def text_field(object_name, method, options = {}) - InstanceTag.new(object_name, method, self, options.delete(:object)).to_input_field_tag("text", options) + Tags::TextField.new(object_name, method, self, options).render end # Returns an input tag of the "password" type tailored for accessing a specified attribute (identified by +method+) on an object @@ -705,7 +699,7 @@ module ActionView # # => <input type="password" id="account_pin" name="account[pin]" size="20" class="form_input" /> # def password_field(object_name, method, options = {}) - InstanceTag.new(object_name, method, self, options.delete(:object)).to_input_field_tag("password", { :value => nil }.merge!(options)) + Tags::PasswordField.new(object_name, method, self, options).render end # Returns a hidden input tag tailored for accessing a specified attribute (identified by +method+) on an object @@ -723,7 +717,7 @@ module ActionView # hidden_field(:user, :token) # # => <input type="hidden" id="user_token" name="user[token]" value="#{@user.token}" /> def hidden_field(object_name, method, options = {}) - InstanceTag.new(object_name, method, self, options.delete(:object)).to_input_field_tag("hidden", options) + Tags::HiddenField.new(object_name, method, self, options).render end # Returns a file upload input tag tailored for accessing a specified attribute (identified by +method+) on an object @@ -738,13 +732,13 @@ module ActionView # # => <input type="file" id="user_avatar" name="user[avatar]" /> # # file_field(:post, :attached, :accept => 'text/html') - # # => <input type="file" id="post_attached" name="post[attached]" /> + # # => <input accept="text/html" type="file" id="post_attached" name="post[attached]" /> # # file_field(:attachment, :file, :class => 'file_input') # # => <input type="file" id="attachment_file" name="attachment[file]" class="file_input" /> # def file_field(object_name, method, options = {}) - InstanceTag.new(object_name, method, self, options.delete(:object)).to_input_field_tag("file", options.update({:size => nil})) + Tags::FileField.new(object_name, method, self, options).render end # Returns a textarea opening and closing tag set tailored for accessing a specified attribute (identified by +method+) @@ -772,7 +766,7 @@ module ActionView # # #{@entry.body} # # </textarea> def text_area(object_name, method, options = {}) - InstanceTag.new(object_name, method, self, options.delete(:object)).to_text_area_tag(options) + Tags::TextArea.new(object_name, method, self, options).render end # Returns a checkbox tag tailored for accessing a specified attribute (identified by +method+) on an object @@ -834,7 +828,7 @@ module ActionView # # <input type="checkbox" class="eula_check" id="eula_accepted" name="eula[accepted]" value="yes" /> # def check_box(object_name, method, options = {}, checked_value = "1", unchecked_value = "0") - InstanceTag.new(object_name, method, self, options.delete(:object)).to_check_box_tag(options, checked_value, unchecked_value) + Tags::CheckBox.new(object_name, method, self, checked_value, unchecked_value, options).render end # Returns a radio button tag for accessing a specified attribute (identified by +method+) on an object @@ -856,7 +850,7 @@ module ActionView # # => <input type="radio" id="user_receive_newsletter_yes" name="user[receive_newsletter]" value="yes" /> # # <input type="radio" id="user_receive_newsletter_no" name="user[receive_newsletter]" value="no" checked="checked" /> def radio_button(object_name, method, tag_value, options = {}) - InstanceTag.new(object_name, method, self, options.delete(:object)).to_radio_button_tag(tag_value, options) + Tags::RadioButton.new(object_name, method, self, tag_value, options).render end # Returns an input of type "search" for accessing a specified attribute (identified by +method+) on an object @@ -882,20 +876,7 @@ module ActionView # # => <input autosave="com.example.www" id="user_name" incremental="true" name="user[name]" onsearch="true" results="10" size="30" type="search" /> # def search_field(object_name, method, options = {}) - options = options.stringify_keys - - if options["autosave"] - if options["autosave"] == true - options["autosave"] = request.host.split(".").reverse.join(".") - end - options["results"] ||= 10 - end - - if options["onsearch"] - options["incremental"] = true unless options.has_key?("incremental") - end - - InstanceTag.new(object_name, method, self, options.delete("object")).to_input_field_tag("search", options) + Tags::SearchField.new(object_name, method, self, options).render end # Returns a text_field of type "tel". @@ -904,7 +885,7 @@ module ActionView # # => <input id="user_phone" name="user[phone]" size="30" type="tel" /> # def telephone_field(object_name, method, options = {}) - InstanceTag.new(object_name, method, self, options.delete(:object)).to_input_field_tag("tel", options) + Tags::TelField.new(object_name, method, self, options).render end alias phone_field telephone_field @@ -914,7 +895,7 @@ module ActionView # # => <input id="user_homepage" size="30" name="user[homepage]" type="url" /> # def url_field(object_name, method, options = {}) - InstanceTag.new(object_name, method, self, options.delete(:object)).to_input_field_tag("url", options) + Tags::UrlField.new(object_name, method, self, options).render end # Returns a text_field of type "email". @@ -923,7 +904,7 @@ module ActionView # # => <input id="user_address" size="30" name="user[address]" type="email" /> # def email_field(object_name, method, options = {}) - InstanceTag.new(object_name, method, self, options.delete(:object)).to_input_field_tag("email", options) + Tags::EmailField.new(object_name, method, self, options).render end # Returns an input tag of type "number". @@ -931,7 +912,7 @@ module ActionView # ==== Options # * Accepts same options as number_field_tag def number_field(object_name, method, options = {}) - InstanceTag.new(object_name, method, self, options.delete(:object)).to_number_field_tag("number", options) + Tags::NumberField.new(object_name, method, self, options).render end # Returns an input tag of type "range". @@ -939,12 +920,12 @@ module ActionView # ==== Options # * Accepts same options as range_field_tag def range_field(object_name, method, options = {}) - InstanceTag.new(object_name, method, self, options.delete(:object)).to_number_field_tag("range", options) + Tags::RangeField.new(object_name, method, self, options).render end private - def instantiate_builder(record_name, record_object, options, &block) + def instantiate_builder(record_name, record_object, options) case record_name when String, Symbol object = record_object @@ -955,267 +936,14 @@ module ActionView end builder = options[:builder] || ActionView::Base.default_form_builder - builder.new(object_name, object, self, options, block) - end - end - - class InstanceTag - include Helpers::CaptureHelper, Context, Helpers::TagHelper, Helpers::FormTagHelper - - attr_reader :object, :method_name, :object_name - - DEFAULT_FIELD_OPTIONS = { "size" => 30 } - DEFAULT_RADIO_OPTIONS = { } - DEFAULT_TEXT_AREA_OPTIONS = { "cols" => 40, "rows" => 20 } - - def initialize(object_name, method_name, template_object, object = nil) - @object_name, @method_name = object_name.to_s.dup, method_name.to_s.dup - @template_object = template_object - @object_name.sub!(/\[\]$/,"") || @object_name.sub!(/\[\]\]$/,"]") - @object = retrieve_object(object) - @auto_index = retrieve_autoindex(Regexp.last_match.pre_match) if Regexp.last_match - end - - def to_label_tag(text = nil, options = {}, &block) - options = options.stringify_keys - tag_value = options.delete("value") - name_and_id = options.dup - - if name_and_id["for"] - name_and_id["id"] = name_and_id["for"] - else - name_and_id.delete("id") - end - - add_default_name_and_id_for_value(tag_value, name_and_id) - options.delete("index") - options["for"] ||= name_and_id["id"] - - if block_given? - label_tag(name_and_id["id"], options, &block) - else - content = if text.blank? - method_and_value = tag_value.present? ? "#{method_name}.#{tag_value}" : method_name - I18n.t("helpers.label.#{object_name}.#{method_and_value}", :default => "").presence - else - text.to_s - end - - content ||= if object && object.class.respond_to?(:human_attribute_name) - object.class.human_attribute_name(method_name) - end - - content ||= method_name.humanize - - label_tag(name_and_id["id"], content, options) - end - end - - def to_input_field_tag(field_type, options = {}) - options = options.stringify_keys - options["size"] = options["maxlength"] || DEFAULT_FIELD_OPTIONS["size"] unless options.key?("size") - options = DEFAULT_FIELD_OPTIONS.merge(options) - if field_type == "hidden" - options.delete("size") - end - options["type"] ||= field_type - options["value"] = options.fetch("value"){ value_before_type_cast(object) } unless field_type == "file" - options["value"] &&= ERB::Util.html_escape(options["value"]) - add_default_name_and_id(options) - tag("input", options) - end - - def to_number_field_tag(field_type, options = {}) - options = options.stringify_keys - if range = options.delete("in") || options.delete("within") - options.update("min" => range.min, "max" => range.max) - end - to_input_field_tag(field_type, options) - end - - def to_radio_button_tag(tag_value, options = {}) - options = DEFAULT_RADIO_OPTIONS.merge(options.stringify_keys) - options["type"] = "radio" - options["value"] = tag_value - if options.has_key?("checked") - cv = options.delete "checked" - checked = cv == true || cv == "checked" - else - checked = self.class.radio_button_checked?(value(object), tag_value) - end - options["checked"] = "checked" if checked - add_default_name_and_id_for_value(tag_value, options) - tag("input", options) - end - - def to_text_area_tag(options = {}) - options = DEFAULT_TEXT_AREA_OPTIONS.merge(options.stringify_keys) - add_default_name_and_id(options) - - if size = options.delete("size") - options["cols"], options["rows"] = size.split("x") if size.respond_to?(:split) - end - - content_tag("textarea", ERB::Util.html_escape(options.delete('value') || value_before_type_cast(object)), options) - end - - def to_check_box_tag(options = {}, checked_value = "1", unchecked_value = "0") - options = options.stringify_keys - options["type"] = "checkbox" - options["value"] = checked_value - if options.has_key?("checked") - cv = options.delete "checked" - checked = cv == true || cv == "checked" - else - checked = self.class.check_box_checked?(value(object), checked_value) - end - options["checked"] = "checked" if checked - if options["multiple"] - add_default_name_and_id_for_value(checked_value, options) - options.delete("multiple") - else - add_default_name_and_id(options) - end - hidden = tag("input", "name" => options["name"], "type" => "hidden", "value" => options['disabled'] && checked ? checked_value : unchecked_value) - checkbox = tag("input", options) - (hidden + checkbox).html_safe - end - - def to_boolean_select_tag(options = {}) - options = options.stringify_keys - add_default_name_and_id(options) - value = value(object) - tag_text = "<select" - tag_text << tag_options(options) - tag_text << "><option value=\"false\"" - tag_text << " selected" if value == false - tag_text << ">False</option><option value=\"true\"" - tag_text << " selected" if value - tag_text << ">True</option></select>" - end - - def to_content_tag(tag_name, options = {}) - content_tag(tag_name, value(object), options) - end - - def retrieve_object(object) - if object - object - elsif @template_object.instance_variable_defined?("@#{@object_name}") - @template_object.instance_variable_get("@#{@object_name}") - end - rescue NameError - # As @object_name may contain the nested syntax (item[subobject]) we need to fallback to nil. - nil - end - - def retrieve_autoindex(pre_match) - object = self.object || @template_object.instance_variable_get("@#{pre_match}") - if object && object.respond_to?(:to_param) - object.to_param - else - raise ArgumentError, "object[] naming but object param and @object var don't exist or don't respond to to_param: #{object.inspect}" - end - end - - def value(object) - self.class.value(object, @method_name) - end - - def value_before_type_cast(object) - self.class.value_before_type_cast(object, @method_name) - end - - class << self - def value(object, method_name) - object.send method_name if object - end - - def value_before_type_cast(object, method_name) - unless object.nil? - object.respond_to?(method_name + "_before_type_cast") ? - object.send(method_name + "_before_type_cast") : - object.send(method_name) - end - end - - def check_box_checked?(value, checked_value) - case value - when TrueClass, FalseClass - value - when NilClass - false - when Integer - value != 0 - when String - value == checked_value - when Array - value.include?(checked_value) - else - value.to_i != 0 - end - end - - def radio_button_checked?(value, checked_value) - value.to_s == checked_value.to_s - end - end - - private - def add_default_name_and_id_for_value(tag_value, options) - unless tag_value.nil? - pretty_tag_value = tag_value.to_s.gsub(/\s/, "_").gsub(/[^-\w]/, "").downcase - specified_id = options["id"] - add_default_name_and_id(options) - options["id"] += "_#{pretty_tag_value}" if specified_id.blank? && options["id"].present? - else - add_default_name_and_id(options) - end - end - - def add_default_name_and_id(options) - if options.has_key?("index") - options["name"] ||= tag_name_with_index(options["index"]) - options["id"] = options.fetch("id"){ tag_id_with_index(options["index"]) } - options.delete("index") - elsif defined?(@auto_index) - options["name"] ||= tag_name_with_index(@auto_index) - options["id"] = options.fetch("id"){ tag_id_with_index(@auto_index) } - else - options["name"] ||= tag_name + (options['multiple'] ? '[]' : '') - options["id"] = options.fetch("id"){ tag_id } - end - end - - def tag_name - "#{@object_name}[#{sanitized_method_name}]" - end - - def tag_name_with_index(index) - "#{@object_name}[#{index}][#{sanitized_method_name}]" - end - - def tag_id - "#{sanitized_object_name}_#{sanitized_method_name}" - end - - def tag_id_with_index(index) - "#{sanitized_object_name}_#{index}_#{sanitized_method_name}" - end - - def sanitized_object_name - @sanitized_object_name ||= @object_name.gsub(/\]\[|[^-a-zA-Z0-9:.]/, "_").sub(/_$/, "") - end - - def sanitized_method_name - @sanitized_method_name ||= @method_name.sub(/\?$/,"") + builder.new(object_name, object, self, options) end end class FormBuilder # The methods which wrap a form helper call. class_attribute :field_helpers - self.field_helpers = FormHelper.instance_method_names - %w(form_for convert_to_model) + self.field_helpers = FormHelper.instance_methods - [:form_for, :convert_to_model] attr_accessor :object_name, :object, :options @@ -1239,11 +967,11 @@ module ActionView self end - def initialize(object_name, object, template, options, proc) + def initialize(object_name, object, template, options) @nested_child_index = {} - @object_name, @object, @template, @options, @proc = object_name, object, template, options, proc + @object_name, @object, @template, @options = object_name, object, template, options @parent_builder = options[:parent_builder] - @default_options = @options ? @options.slice(:index) : {} + @default_options = @options ? @options.slice(:index, :namespace) : {} if @object_name.to_s.match(/\[\]$/) if object ||= @template.instance_variable_get("@#{Regexp.last_match.pre_match}") and object.respond_to?(:to_param) @auto_index = object.to_param @@ -1254,7 +982,7 @@ module ActionView @multipart = nil end - (field_helpers - %w(label check_box radio_button fields_for hidden_field file_field)).each do |selector| + (field_helpers - [:label, :check_box, :radio_button, :fields_for, :hidden_field, :file_field]).each do |selector| class_eval <<-RUBY_EVAL, __FILE__, __LINE__ + 1 def #{selector}(method, options = {}) # def text_field(method, options = {}) @template.send( # @template.send( @@ -1270,6 +998,7 @@ module ActionView fields_options, record_object = record_object, nil if record_object.is_a?(Hash) && record_object.extractable_options? fields_options[:builder] ||= options[:builder] fields_options[:parent_builder] = self + fields_options[:namespace] = fields_options[:parent_builder].options[:namespace] case record_name when String, Symbol @@ -1347,6 +1076,39 @@ module ActionView @template.submit_tag(value, options) end + # Add the submit button for the given form. When no value is given, it checks + # if the object is a new resource or not to create the proper label: + # + # <%= form_for @post do |f| %> + # <%= f.button %> + # <% end %> + # + # In the example above, if @post is a new record, it will use "Create Post" as + # submit button label, otherwise, it uses "Update Post". + # + # Those labels can be customized using I18n, under the helpers.submit key and accept + # the %{model} as translation interpolation: + # + # en: + # helpers: + # button: + # create: "Create a %{model}" + # update: "Confirm changes to %{model}" + # + # It also searches for a key specific for the given object: + # + # en: + # helpers: + # button: + # post: + # create: "Add %{model}" + # + def button(value=nil, options={}) + value, options = nil, value if value.is_a?(Hash) + value ||= submit_default_value + @template.button_tag(value, options) + end + def emitted_hidden_id? @emitted_hidden_id ||= nil end @@ -1421,9 +1183,6 @@ module ActionView end ActiveSupport.on_load(:action_view) do - class ActionView::Base - cattr_accessor :default_form_builder - @@default_form_builder = ::ActionView::Helpers::FormBuilder - end + cattr_accessor(:default_form_builder) { ::ActionView::Helpers::FormBuilder } end end |