access json data from rails controller in ajax call and process it

rubyonrails-talk
1

I am building a Task Management System and have implemented fullcalendar.js in it. I need to get the pending tasks and change the color of those pending tasks. I am getting the instance variable of pending tasks details in the rails controller. But in the ajax request I am not able to loop it.

Please find my code below.

      $('.task_name').live('click', function () {         alert(this.id);         $.ajax({             url: 'pending_task_details',             data: {                 task_id: this.id             },             success: function (data, response, event, date) { <%                 for date_cell in @pending_tasks.start_date..@pending_tasks.end_date %> getCellFromDate(date_cell, calInstance); <% end %>             }         });     });

The above is the logic I need to implement. But I am not getting @pending_tasks.start_date in the view.

In the console I am getting the tasks details #<Task id: 4, project_id: 4, task_name: \"Task4\", task_type: nil, user_id: 2, description: \"Description4\", pm_id: nil, created_at: \"2012-11-01 09:42:37\", updated_at: \"2012-11-01 09:42:37\", percent_completed: \"12\", status: \"completed\", due_date: nil, start_date: \"2012-11-01\", end_date: \"2012-11-08\", priority: \"low\", days_left: nil>

In the tasks controller I am getting the pending tasks as.

      def pending_task_details         @pending_tasks = Task.find_by_id(params[:task_id])         p "The pending tasks are......",@pending_tasks.inspect     #(Date.parse(@pending_tasks.start_date.to_s)..Date.parse(@pending_tasks.end_date.to_s)).each { |date| render :json=>[date.strftime('%a %d %b %Y')] and return}         render :json=>@pending_tasks       end

2

I am building a Task Management System and have implemented fullcalendar.js in it. I need to get the pending tasks and change the color of those pending tasks. I am getting the instance variable of pending tasks details in the rails controller. But in the ajax request I am not able to loop it.

Please find my code below.

      $('.task_name').live('click', function () {         alert(this.id);         $.ajax({             url: 'pending_task_details',             data: {                 task_id: this.id             },             success: function (data, response, event, date) { <%                 for date_cell in @pending_tasks.start_date..@pending_tasks.end_date %> getCellFromDate(date_cell, calInstance); <% end %>             }         });     });

you simply can't do this. try

$.ajax({   url: 'pending_task_details',   data: { task_id: this.id },   dataType: 'json',   success: function(data) {     // do something USING javascript with data here. don't use ruby     data.map(function(d) {       return d.dates.each(function(date) { return getCellFromDate(data[0].date, calInstance) });     });   } })

something like this. i'm pretty sure this still has some errors but you should be able to work with that. just remember to add a dates key with the range of date when you render json.

3

Hey guys… beginner question here so hopefully it's an easy and quick answer.

Is it possible to create associations via scaffolding? Say I have an Artists model and a Song model and I want song to have an artist_id. Can I create that via the scaffold command? Or would I scaffold like normal for both Artist an Song and the add in the column and index for artist_id to Song?

Thanks Dan

4

Hey guys… beginner question here so hopefully it's an easy and quick answer.

Is it possible to create associations via scaffolding? Say I have an Artists model and a Song model and I want song to have an artist_id. Can I create that via the scaffold command? Or would I scaffold like normal for both Artist an Song and the add in the column and index for artist_id to Song?

Thanks Dan