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 73

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 256

def add_json_ld_schema
  edited_document = DcJsonLd.find_document_by_ids(params[:table], 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 47

def autocomplete
#  return '' unless session[:edit_mode] > 0 # 

  return render plain: t('drgcms.not_authorized') unless dc_user_can(DcPermission::CAN_VIEW)
# TODO Double check if previous line works as it should.

  table = params['table'].classify.constantize
  id = [params['id']] || '_id'
# call method in class if search parameter has . This is for user defined searches

# result must be returned as array of [id, search_field_value]

  a = if params['search'].match(/\./)
    name, method = params['search'].split('.')
    table.send(method, params['input']).inject([]) do |r,v|
      r << { label: v[0], value: v[0], id: (v[1] || v[0]).to_s }
    end
# simply search which will search and return field_name defined in params['search']

  else
    table.where(params['search'] => /#{params['input']}/i).limit(20).inject([]) do |r,v|
      r << { label: v[params['search']], value: v[params['search']], id: v.id.to_s }
    end
  end

  render plain: a.to_json
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 201

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
      doc = dc_find_document(params[:table], params[:id], params[:ids])
      text = "<br><br>[#{params[:table]},#{params[:id]},#{params[:ids]}]<br>"
      render plain: text + doc.as_document.to_json
    end
    
  end  
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 143

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 134

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 222

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 116

def 
# Somebody is probably playing

  return dc_render_404 unless ( params[:record] and params[:record][:username] and 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] ||  '/'
    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 162

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 89

def toggle_edit_mode
  session[:edit_mode] ||= 0 
# called without logged in  

  if session[:edit_mode] < 1 
    dc_render_404 
  else
# 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]
    end 
# offset CMS menu

    if (ypos = uri['return_to_ypos'].to_i) > 0
      ypos += session[:edit_mode] == 2 ? 250 : -250
    end
    url << "?return_to_ypos=#{ypos}"
    redirect_to url
  end
end