Class: DcCommonController

Inherits:
DcApplicationController show all
Defined in:
app/controllers/dc_common_controller.rb

Overview

This controller holds some common actions used by CMS.

Instance Method Summary collapse

Methods inherited from DcApplicationController

#dc_dump, #dc_edit_mode?, #dc_find_form_file, #dc_get_site, #dc_log_visit, #dc_render_404, #dc_user_has_role, #set_page_title

Instance Method Details

#ad_click ⇒ Object

Register and record click when ad link is clicked.



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# File 'app/controllers/dc_common_controller.rb', line 83

def ad_click
  if params[:id] and (ad = DcAd.find(params[:id]))
    ad.clicked += 1
    ad.save
    DcAdStat.create!(dc_ad_id: params[:id], ip: request.ip, type: 2 ) 
  else
    logger.error "ERROR ADS: Invalid ad id=#{params[:id]} ip=#{request.ip}."
  end

  render body: nil
end

#add_json_ld_schema ⇒ Object

Will add new json_ld element with blank structure into dc_json_ld field on a document.



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# File 'app/controllers/dc_common_controller.rb', line 269

def add_json_ld_schema
  edited_document = DcJsonLd.find_document_by_ids(CmsHelper.table_param(params), params[:ids])
  yaml = YAML.load_file( dc_find_form_file('json_ld_schema') )
  schema_data = yaml[params[:schema]]
  # Existing document
  if edited_document.dc_json_lds.find_by(type: "@#{params[:schema]}")
    return render json: {'msg_error' => t('helpers.help.dc_json_ld.add_error', schema: params[:schema] ) }
  else
    add_empty_json_ld_schema(edited_document, schema_data, params[:schema], params[:schema], yaml)
  end
  render json: {'reload_' => 1}
end

#autocomplete ⇒ Object

This action is called on ajax autocomplete call. It checks if user has rights to view data.

URL parameters:

table

Table (collection) model name in lower case indicating table which will be searched.

id

Name of id key field that will be returned. Default is ‘_id’

input

Search data entered in input field.

search

when passed without dot it defines field name on which search

will be performed. When passed with dot class_method.method_name is assumed. Method name will be parsed and any class with class method name can be evaluated. Class method must accept input parameter and return array [ [_id, value],.. ] which will be used in autocomplete field.

Return: JSON array [label, value, id] of first 20 documents that confirm to query.



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# File 'app/controllers/dc_common_controller.rb', line 46

def autocomplete
  # table parameter must be defined. If not, get it from search parameter
  if params['table'].nil? && params['search'].match(/\./)
    name = params['search'].split('.').first
    params['table'] = name.underscore
  end
  if params['table'].match('_control')
    # it must be at least logged on
    return render json: { label: t('drgcms.not_authorized') } unless dc_user_can(DcPermission::CAN_VIEW, 'dc_memory')
  else
    return render json: { label: t('drgcms.not_authorized') } unless dc_user_can(DcPermission::CAN_VIEW)
  end

  table = params['table'].classify.constantize
  input = params['input'].gsub(/\(|\)|\[|\]|\{|\|\.|\,}/, '')
  # call method in class if search parameter contains . This is for user defined searches
  a = if params['search'].match(/\./)
        #method, additional_params = params['search'].split('.')
        #data = additional_params ? table.send(method, input, additional_params, self) : table.send(method, input)
        name, method = params['search'].split('.')
        data = table.send(method, input)
        data.map do |v|
          { label: v[0], value: v[0], id: (v[1] || v[0]).to_s }
        end
      # will search and return field_name defined in params['search']
      else
        table.where(params['search'] => /#{input}/i).limit(20).map do |v|
          { label: v[params['search']], value: v[params['search']], id: v.id.to_s }
        end
      end

  render json: a
end

#copy_clipboard ⇒ Object

Copy current record to clipboard as json text. It will actually ouput an window with data formatted as json.



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# File 'app/controllers/dc_common_controller.rb', line 211

def copy_clipboard
  # Only administrators can perform this operation
  return render(plain: t('drgcms.not_authorized') )  unless dc_user_can(DcPermission::CAN_ADMIN,'dc_site')

  respond_to do |format|
    # just open new window to same url and come back with html request
    format.json { dc_render_ajax(operation: 'window', url: request.url ) }
    
    format.html do
      table = CmsHelper.table_param(params)
      doc   = dc_find_document(table, params[:id], params[:ids])
      text  = "<br><br>[#{table},#{params[:id]},#{params[:ids]}]<br>"
      render plain: text + doc.as_document.to_json
    end
  end  
end

#help ⇒ Object

Will provide help data



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# File 'app/controllers/dc_common_controller.rb', line 285

def help
  form_name = CmsHelper.form_param(params) || CmsHelper.table_param(params)
  @form = form_name ? YAML.load_file(dc_find_form_file(form_name)) : {}
  return render json: {} if @form.nil?

  help_file_name = @form['help'] || @form['extend'] || form_name
  help_file_name = find_help_file(help_file_name)
  @help = YAML.load_file(help_file_name) if help_file_name
  # no auto generated help on index action
  return render json: {} if params[:type] == 'index' && @help.nil?

  render json: { popup: render_to_string(partial: 'help') }
end

#login ⇒ Object

Alternative login action with remember_me cookie. If found it will automatically login user otherwise user will be presented with regular login dialog.



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# File 'app/controllers/dc_common_controller.rb', line 154

def 
  if cookies.signed[:remember_me]
    user = DcUser.find(cookies.signed[:remember_me])
    if user and user.active
      (user, true)
      return redirect_to params[:return_to]
    else
       # on the safe side
    end
  end
  # Display login
  route = params[:route] || 'poll'
  redirect_to "/#{route}?poll_id=login&return_to=#{params[:return_to]}"
end

#logout ⇒ Object

Default user logout action.



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# File 'app/controllers/dc_common_controller.rb', line 145

def logout
  
  redirect_to params[:return_to] || '/'
end

#paste_clipboard ⇒ Object

Paste data from clipboard into text_area and update documents in destination database. This action is called twice. First time for displaying text_area field and second time ajax call for processing data.



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# File 'app/controllers/dc_common_controller.rb', line 233

def paste_clipboard
  # Only administrators can perform this operation
  return render(plain: t('drgcms.not_authorized') )  unless dc_user_can(DcPermission::CAN_ADMIN,'dc_site')

  result = ''
  respond_to do |format|
    # just open new window to same url and come back with html request
    format.html { return render('paste_clipboard', layout: 'cms') }
    format.json {
      table, id, ids = nil
      params[:data].split("\n").each do |line|
        line.chomp!
        next if line.size < 5                 # empty line. Skip

        begin
          if line[0] == '['                   # id(s)
            result << "<br>#{line}"
            line = line[/\[(.*?)\]/, 1]       # just what is between []
            table, id, ids = line.split(',')
          elsif line[0] == '{'                # document data
            result << process_document(line, table, id, ids)
          end
        rescue Exception => e 
          result << " Runtime error. #{e.message}\n"
          break
        end
      end
    }
  end
  dc_render_ajax(div: 'result', value: result )
end

#process_login ⇒ Object

Default user login action.



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# File 'app/controllers/dc_common_controller.rb', line 125

def 
  # Somebody is probably playing
  return dc_render_404 unless ( params[:record] && params[:record][:username] && params[:record][:password] )

  unless params[:record][:password].blank? #password must not be empty
    user  = DcUser.find_by(username: params[:record][:username], active: true)
    if user and user.authenticate(params[:record][:password])
      (user, params[:record][:remember_me].to_i == 1)
      return redirect_to params[:return_to] ||  '/'
    else
       # on the safe side
    end
  end
  flash[:error] = t('drgcms.invalid_username')
  redirect_to params[:return_to_error] ||  '/'
end

#restore_from_journal ⇒ Object

Action for restoring document data from journal document.



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# File 'app/controllers/dc_common_controller.rb', line 172

def restore_from_journal
  # Only administrators can perform this operation
  unless dc_user_has_role('admin')
    return render plain: { 'msg_info' => (t ('drgcms.not_authorized')) }.to_json
  end
  # selected fields to hash
  restore = {} 
  params[:select].each { |key,value| restore[key] = value if value == '1' }
  result = if restore.size == 0
    { 'msg_error' => (t ('drgcms.dc_journal.zero_selected')) }
  else
    journal_doc = DcJournal.find(params[:id])
    # update hash with data to be restored
    JSON.parse(journal_doc.diff).each {|k,v| restore[k] = v.first if restore[k] }
    # determine tables and document ids
    tables = journal_doc.tables.split(';')
    ids = (journal_doc.ids.blank? ? [] : journal_doc.ids.split(';') ) << journal_doc.doc_id
    # find document
    doc = nil
    tables.each_index do |i|
      doc = if doc.nil?
        (tables[i].classify.constantize).find(ids[i])
      else
        doc.send(tables[i].pluralize).find(ids[i])
      end
    end
    # restore and save values
    restore.each { |field,value| doc.send("#{field}=",value) }
    doc.save
    # TODO Error checking
    { 'msg_info' => (t ('drgcms.dc_journal.restored')) }
  end
  render plain: result.to_json
end

#toggle_edit_mode ⇒ Object

Toggle CMS edit mode.This action is called when user clicks CMS option on top of the browser.



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# File 'app/controllers/dc_common_controller.rb', line 99

def toggle_edit_mode
  session[:edit_mode] ||= 0 
  # error when not logged in
  return dc_render_404 if session[:edit_mode] < 1

  # if return_to_ypos parameter is present it will forward it and thus scroll to
  # aproximate position it was when toggle was clicked
  session[:edit_mode] = (session[:edit_mode] == 1) ? 2 : 1
  uri = Rack::Utils.parse_nested_query(request.url)
  # it parses only on & so first (return_to) parameter also contains url
  url = uri.first.last
  if (i = url.index('return_to_ypos')).to_i > 0
    url = url[0, i-1]
  end 
  # offset CMS menu
  if (ypos = uri['return_to_ypos'].to_i) > 0
    ypos += session[:edit_mode] == 2 ? 250 : -250
  end
  url << (url.match(/\?/) ? '&' : '?')
  url << "return_to_ypos=#{ypos}"
  redirect_to url
end