CODEWITHSUNDEEP
htmlruby-on-rails
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Reputation: 117

Rails: How to make text field editable only once?

I'm making a little form and what I'm trying to do is to make one of the text fields get the value only when notification is created. I have:

<%= f.label :User_ID %>
<%= f.text_field :user_id, :value => current_user.id ,:readonly => true %>

My problem is that when other users are editing notifications, then this text field is automatically changing it's value. I'm not sure how to make it work. Thanks!

Upvotes: 1

Views: 511

Answers (1)

Alexander Luna
Alexander Luna

Reputation: 5449

In your view you could check if the user id is already present and if so, don't display the user id text_field:

<% unless user_id.exists? %>  #only if user_id is not present, show the text_field
<%= f.text_field :user_id, :value => current_user.id ,:readonly => true %>
<% end %>

Another option would be to add a boolean value to the model you are referring. For example, a notification model:

notification: string edit: boolean (default: true)

After a user creates a notification, you set the boolean value for "edit" to false with an after create for example.

The next time a user edits that notification, you do the same in the view as before:

<% unless @notification.edit? %>  #only if edit is set to true, show the text_field
<%= f.text_field :user_id, :value => current_user.id ,:readonly => true %>
<% end %>

It is a little vague but it gives you an idea how to do it.

Upvotes: 1

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