ruby validation error message needs changing

Question

I have a model called 'dropbox', that extends 'programme'. Programme has the following validation:

validates_presence_of :network_id, :name

and so when you try to create a dropbox, leaving these out, you (unsurprisingly) get the following vaidation message:

* Network can't be blank
* Name can't be blank

Problem is, in the context of 'dropbox', we call 'network' 'category'. How can I change the network can't be blank error message to category can't be blank

---edit---

I've tried:

activerecord:
  attributes:
    dropbox:
      network_id: Category

but this has no affect. However, this works:

activerecord:
  attributes:
    programme:
      network_id: Category

but will change network's name everywhere (where as I just need it to be changed for dropbox). I believe this is because network_id is a property on programme and dropbox just extends this, but there must be a way round!

mikewilliamson · Accepted Answer · 2011-03-08 18:48:22Z

2

You could use the locales for that:

activerecord:
  attributes:
    dropbox:
      network: Category

Stick that in config/locales/en.yml to change the displayed names of the attributes. The create some error messages:

errors:
  messages:
    dropbox:
      cant_be_blank: Oops!

Then you add a message option to the model:

validates_presence_of :network_id, :name, :message => I18n.t('activerecord.errors.messages.dropbox.cant_be_blank')

Lots more info can be found here.

edited Mar 8, 2011 at 18:48

answered Mar 8, 2011 at 18:38

mikewilliamson

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4 Comments

tiswas Over a year ago

from that, I'm getting: ** Network Oops! Name Oops! ** Also, won't this mean that all Programmes (not just dropbox subclasses) will get the custom error message..?

mikewilliamson Over a year ago

I corrected the directory typo. Basically any attribute will use the names you enter there instead of their actual names (network_id or whatever else.) Take a look at the link I posted. Hopefully that will help you sort out the details.

mikewilliamson Over a year ago

The nesting of activerecord::errors::messages::dropbox gives you a set of messages for the dropbox model. When you want set up some for another model use activerecord::errors::messages::othermodel. Change the Oops to whatever you want your message to be.

tiswas Over a year ago

I think I've worked out why this isn't working. network_id is a property on Programme, not on Dropbox. The only way I've been able to change it is by doing: activerecord: attributes: programme: network_id: Category, but this would obviously just change the name of network_id for all types of programme not just dropboxes. Doing activerecord: attributes: dropbox: network_id: Category has no affect.

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