module ActiveScaffold::RenderingHelper
Public Instance Methods
Source
# File lib/active_scaffold/extensions/action_view_rendering.rb, line 38 def render(*args, &) if args.first.is_a?(Hash) && args.first[:active_scaffold] render_embedded args.first elsif args.first == :super if @lookup_context # rails 6 @_lookup_context ||= lookup_context else # rails < 6 @_view_paths ||= lookup_context.view_paths.clone @_last_template ||= lookup_context.last_template end result = super(options_for_render_super(args[1])) @lookup_context = @_lookup_context if @_lookup_context # rails 6 lookup_context.view_paths = @_view_paths if @_view_paths # rails < 6 lookup_context.last_template = @_last_template if @_last_template # rails < 6 result else if @lookup_context # rails 6 @_lookup_context ||= lookup_context else # rails < 6 @_view_paths ||= lookup_context.view_paths.clone end last_template = lookup_context.last_template current_view = if args[0].is_a?(Hash) {locals: args[0][:locals], object: args[0][:object]} else # call is render 'partial', locals_hash {locals: args[1]} end view_stack << current_view if current_view @lookup_context = @_lookup_context if @_lookup_context # rails 6, reset lookup_context in case a view render :super, and then render :partial lookup_context.view_paths = @_view_paths if @_view_paths # rails < 6, reset view_paths in case a view render :super, and then render :partial result = super view_stack.pop if current_view.present? lookup_context.last_template = last_template result end end
Adds two rendering options.
render :super¶ ↑
This syntax skips all template overrides and goes directly to the provided ActiveScaffold
templates. Useful if you want to wrap an existing template. Just call super!
render active_scaffold: #{controller.to_s}, options+¶ ↑
Lets you embed an ActiveScaffold
by referencing the controller where it’s configured.
You may specify options for the embedded scaffold. These constraints have three effects:
* the scaffold's only displays records matching the constraint * all new records created will be assigned the constrained values * constrained columns will be hidden (they're pretty boring at this point)
You may also specify options for the embedded scaffold. These only do 1/3 of what constraints do (they only limit search results). Any format accepted by ActiveRecord::Base.find is valid.
Defining options lets you completely customize the list title for the embedded scaffold.
options force to load embedded scaffold with AJAX even when render_component gem is installed.
Calls superclass method
Source
# File lib/active_scaffold/extensions/action_view_rendering.rb, line 76 def view_stack @view_stack ||= [] end
Private Instance Methods
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# File lib/active_scaffold/extensions/action_view_rendering.rb, line 82 def options_for_render_super(options) options ||= {} options[:locals] ||= {} if view_stack.last options[:locals] = view_stack.last[:locals].merge!(options[:locals]) if view_stack.last[:locals] options[:object] ||= view_stack.last[:object] if view_stack.last[:object] end parts = @virtual_path.split('/') options[:template] = parts.pop prefix = parts.join('/') # if prefix is active_scaffold_overrides we must try to render with this prefix in following paths if prefix == 'active_scaffold_overrides' options[:prefixes] = ['active_scaffold_overrides'] update_view_paths else options[:prefixes] = lookup_context.prefixes.drop((lookup_context.prefixes.find_index(prefix) || -1) + 1) end options end
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# File lib/active_scaffold/extensions/action_view_rendering.rb, line 122 def remote_controller_config(controller_path) # attempt to retrieve the active_scaffold_config by constantizing the controller path "#{controller_path}_controller".camelize.constantize.active_scaffold_config rescue NameError # if we couldn't determine the controller config by instantiating the # controller class, parse the ActiveRecord model name from the # controller path, which might be a namespaced controller (e.g., 'admin/admins') model = controller_path.to_s.sub(%r{.*/}, '').singularize active_scaffold_config_for(model) end
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# File lib/active_scaffold/extensions/action_view_rendering.rb, line 133 def render_embedded(options) require 'digest/md5' remote_controller = options[:active_scaffold] # It is important that the EID hash remains short as to not contribute # to a large session size and thus a possible cookie overflow exception # when using rails CookieStore or EncryptedCookieStore. For example, # when rendering many embedded scaffolds with constraints or conditions # on a single page. eid = Digest::MD5.hexdigest(params[:controller] + options.to_s) eid_info = {loading: true} eid_info[:constraints] = options[:constraints] if options[:constraints] eid_info[:conditions] = options[:conditions] if options[:conditions] eid_info[:label] = options[:label] if options[:label] options[:params] ||= {} options[:params].merge! eid: eid, embedded: eid_info id = "as_#{eid}-embedded" url_options = {controller: remote_controller.to_s, action: 'index', id: nil}.merge(options[:params]) if controller.respond_to?(:render_component_into_view, true) && !options[:xhr] controller.send(:render_component_into_view, url_options) else url = url_for(url_options) content_tag(:div, id: id, class: 'active-scaffold-component', data: {refresh: url}) do content_tag(:div, class: 'active-scaffold-header') do content_tag(:h2) do label = options[:label] || remote_controller_config(remote_controller).list.label link_to(label, url, remote: true, class: 'load-embedded', data: {error_msg: as_(:error_500)}) << loading_indicator_tag(url_options) end end end end end
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# File lib/active_scaffold/extensions/action_view_rendering.rb, line 103 def update_view_paths last_view_path = if @lookup_context # rails 6 File.expand_path(File.dirname(@lookup_context.last_template.short_identifier.to_s, 2), Rails.root) else File.expand_path(File.dirname(lookup_context.last_template.inspect, 2), Rails.root) end new_view_paths = view_paths.drop(view_paths.find_index { |path| path.to_s == last_view_path } + 1) if @lookup_context # rails 6 if respond_to? :build_lookup_context # rails 6.0 build_lookup_context(new_view_paths) else # rails 6.1 @lookup_context = ActionView::LookupContext.new(new_view_paths) end else lookup_context.view_paths = new_view_paths end end