Class: DcPageRenderer

Inherits:
Object
  • Object
show all
Includes:
DcApplicationHelper
Defined in:
app/renderers/dc_page_renderer.rb

Overview

Page renderer renders data from dc_page collection documents. This renderer will almost certainly be replaced by your own renderer so example here shows just basic code which just checks if user is allowed to view data and if so returns document body content otherwise returns error message defined in site policy.

Example:

<div id="page">
  <%= dc_render(:dc_page) %>
</div>

Instance Attribute Summary

Attributes included from DcApplicationHelper

#design, #form, #ids, #json_ld, #menu, #menu_item, #options, #page, #page_title, #part, #parts, #record, #record_footer, #site, #tables

Instance Method Summary collapse

Methods included from DcApplicationHelper

#_origin, #dc_add2_record_cookie, #dc_add_json_ld, #dc_add_meta_tag, #dc_big_table, #dc_choices4, #dc_choices4_all_collections, #dc_choices4_cmsmenu, #dc_choices4_field, #dc_choices4_folders_list, #dc_choices4_menu, #dc_choices4_site_policies, #dc_date_time, #dc_deprecate, #dc_document_path, #dc_dont?, #dc_edit_mode?, #dc_edit_title, #dc_error_messages_for, #dc_flash_messages, #dc_format_date_time, #dc_format_number, #dc_get_json_ld, #dc_get_seo_meta_tags, #dc_get_site, #dc_icon4_boolean, #dc_icon_for_link, #dc_iframe_edit, #dc_img_alt, #dc_img_alt_tag, #dc_internal_var, #dc_label_for, #dc_limit_string, #dc_link_for_create, #dc_link_for_edit, #dc_link_for_edit1, #dc_link_menu_tag, #dc_link_to, #dc_menu_class, #dc_name4_id, #dc_name4_value, #dc_new_title, #dc_page_bottom, #dc_page_class, #dc_page_edit_menu, #dc_page_top, #dc_render, #dc_render_design, #dc_render_design_part, #dc_render_from_site, #dc_render_partial, #dc_replace_in_design, #dc_submit_tag, #dc_table_title, #dc_user_can_view, #dc_user_has_role, #decamelize_type, #forms_merge, #t, #t_name, #t_tablename

Constructor Details

#initialize(parent, opts = {}) ⇒ DcPageRenderer

Object initialization.



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# File 'app/renderers/dc_page_renderer.rb', line 43

def initialize( parent, opts={} ) #:nodoc:

  @parent = parent
  @opts   = opts
  @page   = @parent.page
  @css    = ''
end

Instance Method Details

#default ⇒ Object

Default DcPage render method



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# File 'app/renderers/dc_page_renderer.rb', line 97

def default
  can_view, msg = dc_user_can_view(@parent, @page)
  return msg unless can_view
# 

  html = ''
  html << dc_page_edit_menu() if @opts[:edit_mode] > 1
  @parent.page_title = @page.title.blank? ? @page.subject : @page.title
  html << @page.body
# render poll if defined

  if @page.dc_poll_id
    @opts.merge!(:poll_id => @page.dc_poll_id, :return_to => @parent.request.url, method: nil)
    comment = DcPollRenderer.new(@parent, @opts)
    html << "<div class='wrap row'>#{comment.render_html}</div>"
    @css << "\n#{comment.render_css}"
  end
# also add iframe

  html << iframe()
end

#iframe ⇒ Object

Render IFrame part if defined on page

Parameters forwarded to iframe are defined in if_params field as yaml as:

param_name:
  object: internal object name (params, session, site, page)
  method: method name (variable) holding the value of parameter

example: Forward id parameter to iframe 
id:
  object: params
  method: id

example: Forward user id and edit_mode to iframe
user_id:
  object: session
  method: user_id
edit:
  object: session
  method: edit_mode



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# File 'app/renderers/dc_page_renderer.rb', line 72

def iframe
  return '' if @page.if_url.blank?
  html =  "\n<iframe"
  html << " id=\"#{@page.if_id}\"" unless @page.if_id.blank?
  html << " class=\"#{@page.if_class}\"" unless @page.if_class.blank?
  html << " border=\"#{@page.if_border}\""  
  html << " height=\"#{@page.if_height}\"" unless @page.if_height.blank?
  html << " width=\"#{@page.if_width}\"" unless @page.if_width.blank?
  html << " scrolling=\"#{@page.if_scroll}\""
# Parameters

  parameters = @page.if_url.match(/\?/) ? '' : '?' 
  params = YAML.load(@page.if_params) rescue {}
  params = {} unless params.class == Hash
  params.each do |key, value|
    val = @parent.dc_internal_var(value['object'], value['method'])
    parameters << "&#{key}=#{val}" if val # only when not nil

  end
  url = @page.if_url + (parameters.size > 1 ? parameters : '')
  html << "src=\"#{url}\" ></iframe>\n"
  html
end

#render_css ⇒ Object

Return CSS part of code.



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# File 'app/renderers/dc_page_renderer.rb', line 127

def render_css
  @css
end

#render_html ⇒ Object

Renderer dispatcher. Method returns HTML part of code.



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# File 'app/renderers/dc_page_renderer.rb', line 119

def render_html
  method = @opts[:method] || 'default'
  respond_to?(method) ? send(method) : "Error DcPage: Method #{method} doesn't exist!"
end