Single model different view and CRUD functionality in RubyOnRails3 - ruby-on-rails

Question

As a new to Ruby on rails, I stumble on a part of my app. I read the basics of RoR framework and know the 'convention over configuration' feature of rails MVC. I have two tables, one is apps_events and another is apps_events_attributes. The id of the first one is the foreign key of the second and in has many relationship. The app_events table has a field of foreign key attribute 'app_id', so selecting on a particular app I will be redirected to its events and attributes. There is also a field called 'is_standard' which actually distinguish the event type whether it's a Standard or Custom event.
Now I have to render those events and its attributes of a particular app in two different tab on the view layer with it's attributes using nested_form_for feature. User can toggle to Standard and Custom event through this tab click. Can anyone suggest me how will I achieve the same and can show me the ideal flow of this scenario (model name and checking part of 'is_standard', propagate the same in controller and render to the view)?
By the way, can I use different controller over the same model and if I do the same then is it capable of doing the same CRUD functionality for different Event and its attributes?

Answer 1

I have all it done alone and it is not very hard what I think at first, all trick is done by JQuery... and share the concept if somebody got same problem as me
My Models are
class AppsEvent < ActiveRecord::Base
belongs_to :app
has_many :apps_events_attributes, :foreign_key => 'apps_event_id',
:class_name => 'AppsEventsAttribute',
:dependent => :destroy
accepts_nested_attributes_for :apps_events_attributes,
:reject_if => lambda { |a| (a[:name].blank? && a[:description].blank?) },
:allow_destroy => true
validates_presence_of :description
validates_presence_of :name
validates_presence_of :code
validates_presence_of :apps_events_attributes, :message => "can't be empty"
end
and
class AppsEventsAttribute < ActiveRecord::Base
set_table_name :apps_events_attributes
belongs_to :apps_event, :foreign_key => 'apps_event_id'
attr_accessible :id, :apps_event_id, :name, :description, :attribute_type, :is_std, :created_at, :updated_at
def type
self.attribute_type
end
end
and My Controller is...
class AppsEventsController < ApplicationController
layout :layout_by_resource
before_filter :initialize_default_app
before_filter :check_permission
before_filter :load
def load
#app = current_user.find_app(params[:app_id])
#apps_events = AppsEvent.where(:app_id => #app.id)
#apps_event = AppsEvent.new
end
def index
#app = current_user.find_app(params[:app_id])
#default_app = App.default(current_user)
#apps_events = AppsEvent.where(:app_id => #app.id)
#apps_event_jsons = Hash.new
#apps_events.each do |app_event|
json = Hash.new
json['User_ID'] = 548741213
json['Session_ID'] = 2568639390
json['Action_Type'] = app_event.code
json['eventsData'] = {}
app_event.apps_events_attributes.each do |apps_event_attributes|
if (apps_event_attributes.attribute_type == 'Integer')
json['eventsData'][apps_event_attributes.name] = 1234
elsif (apps_event_attributes.attribute_type == 'Float')
json['eventsData'][apps_event_attributes.name] = 1234.23
else
json['eventsData'][apps_event_attributes.name] = 'abcd'
end
end
#apps_event_jsons[app_event.id] = json
end
end
def new
#apps_event = AppsEvent.new
#app = current_user.find_app(params[:app_id])
#apps_event.app_id = #app.id
#apps_event.apps_events_attributes.build
#action = 'create'
render 'edit'
end
def edit
#app = current_user.find_app(params[:app_id])
#apps_event = AppsEvent.find(params[:id])
#action = 'update'
end
def create
#apps_event = AppsEvent.new(params[:apps_event])
#show_custom_event = 'true'
#apps_event.name = #apps_event.name.strip
respond_to do |format|
if #apps_event.save
format.html {
redirect_to("/app/#{params[:apps_event][:app_id]}/apps_events",
:notice => "Successfully created #{#apps_event.name} custom definition.")
}
format.js {
flash[:notice] = 'Successfully created event.'
#apps_events = AppsEvent.where(:app_id => #app.id)
}
else
#app = current_user.find_app(params[:app_id])
if (#apps_event.apps_events_attributes == nil || #apps_event.apps_events_attributes.size <= 0)
#apps_event.apps_events_attributes.build
end
#apps_event.populate_code
#action = 'create'
format.html {
redirect_to("/app/#{params[:apps_event][:app_id]}/apps_events",
:alert => "Error in creating #{#apps_event.name} custom definition.")
}
format.js
end
end
end
def update
#apps_event = AppsEvent.find(params[:apps_event][:id])
params[:apps_event][:name] = params[:apps_event][:name].strip
respond_to do |format|
if #apps_event.update_attributes(params[:apps_event])
format.html {
if(#apps_event.is_std == 'y')
redirect_to("/app/#{params[:apps_event][:app_id]}/apps_events",
:notice => "Successfully updated #{#apps_event.name} standard definition.")
else
redirect_to("/app/#{params[:apps_event][:app_id]}/apps_events",
:notice => "Successfully updated #{#apps_event.name} custom definition.")
end
}
format.js {
flash[:notice] = 'Successfully updated event.'
#apps_events = AppsEvent.where(:app_id => #app.id)
render :nothing => true
}
else
#app = current_user.find_app(params[:app_id])
if (#apps_event.apps_events_attributes == nil || #apps_event.apps_events_attributes.size <= 0)
#apps_event.apps_events_attributes.build
end
#apps_event.populate_code
#action = "update"
format.html {
if(#apps_event.is_std == 'y')
redirect_to("/app/#{params[:apps_event][:app_id]}/apps_events",
:alert => "Error in updating #{#apps_event.name} standard definition.")
else
redirect_to("/app/#{params[:apps_event][:app_id]}/apps_events",
:alert => "Error in updating #{#apps_event.name} custom definition.")
end
}
format.js
end
end
end
def delete
if AppsEvent.delete(params[:id])
redirect_to "/app/#{params[:app_id]}/apps_events", :notice => "Successfully deleted #{#apps_event.name} custom definition."
else
redirect_to "/app/#{params[:app_id]}/apps_events",
:alert => "Error in deleting #{#apps_event.name} custom definition."
end
end
end
and I have 5 view files which are index.html.erb, edit.js.erb, _form_custom.html.erb, _form_standard.html.erb and _events.html.erb beside that have also a helper file for update, create and delete using ajax call by setting remote => true. In index file I am doing partial rendering all events(_events.html.erb) and here I done the trick :P
My _events.html.erb
<% for apps_event in #apps_events %>
<% if (apps_event.is_std == 'y') %>
<div class="standardEvent showStandard">
<ul>
<li class="column_1"><span style="font-weight: bold;"><%= apps_event.name %></span></li>
<li class="column_2"><span><%= apps_event.code %></span></li>
<li class="column_3"><span><%= apps_event.description %></span></li>
<li class="column_4">
<%= link_to edit_apps_event(apps_event) %>
</li>
<li class="column_5">
</li>
</ul>
</div>
<% else %>
<div class="customEvent showCustom" style="display:none">
<ul>
<li class="column_1"><span style="font-weight: bold;"><%= apps_event.name %></span></li>
<li class="column_2"><span><%= apps_event.code %></span></li>
<li class="column_3"><span><%= apps_event.description %></span></li>
<li class="column_4">
<%= link_to edit_apps_event(apps_event) %>
</li>
<li class="column_5">
<%= remove_apps_event_prompt_link(apps_event) %>
</li>
</ul>
</div>
<% end %>
<div class="clrBoth"></div>
<% end %>
now you can figure out the left part mean -- JQuery part to hide or show a div.