CODEWITHSUNDEEP
ruby-on-railsrubyruby-on-rails-3
johbones
johbones

Reputation: 197

how can I make a checkbox update 2 table fields at once in Rails 3?

I have two boolean fields in a table in my database.

both are defaulted to FALSE

This is what I have in my view

<%= label_tag(:post_draft, "Draft?") %>
<div class="ItemCheckboxAlign"><%= f.check_box :draft %></div>

As you can see, I have one of them working correctly. Is it possible to associate the other boolean field so if checked, the value changes to TRUE as well? I want to keep these two boolean field values completely separate from each other except I'm trying to update both with this one checkbox.

My schema:

  create_table "posts", :force => true do |t|
    t.text     "content"
    t.integer  "user_id"
    t.datetime "created_at",                         :null => false
    t.datetime "updated_at",                         :null => false
    t.boolean  "draft",          :default => false
    t.boolean  "sendreminder",          :default => false
  end

I'm trying to get the bottom two boolean fields changed to TRUE if the checkmark is checked when a user posts. I already have the "draft" working, but just trying to the other one to change as well at once.

After some discussion below, I am trying to apply the update_attribute(sendreminder, true) method. How can I include this in my model to make sendreminder=true only if draft=true?

Upvotes: 0

Views: 197

Answers (2)

rorra
rorra

Reputation: 9693

On the controller, you can do something like:

my_model = MyModel.find(params[:id])
my_model.assign_attributes(params[:my_model])
my_model.sendreminder = my_model.draft
if my_model.save
  bla bla bla
else
  bla bla bla
end

just make sure to replace MyModel with the model you are using, and the bla bla bla is pseudo code :)

If you want that to work the same for each time you save the model, you can use a before filter on your mode.

class Post < ActiveRecord:Base
  before_save :associate_draft

  def associate_draft
    self.sendreminder = self.draft unless self.sendreminder == true
  end
end

and then every time you save or update the model, that filter will be executed and the value of post_draft will be always the same value than draft.

Upvotes: 0

Radu Stoenescu
Radu Stoenescu

Reputation: 3205

You can also add a before_save callback to your model and check whether you need to update other fields or not, based on the new state of the model instance.

Upvotes: 2

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