github-migration/formtastic-slug
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be ok when there are no existing slugs

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This commit is contained in:
John Bintz 2013-02-21 16:43:20 -05:00
parent 3e91931dc6
commit e98e329d92
2 changed files with 13 additions and 1 deletions
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8
README.md
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@ -6,6 +6,14 @@ Add a slug field, that generates a slug based on another field.
= f.input :slug, :as => :slug, :based_on => :title
```
You can put in the list of existing slugs and the editor will avoid using those:
``` haml
= semantic_form_for @blog_entry do |f|
= f.input :title
= f.input :slug, :as => :slug, :based_on => :title, :existing_slugs => @blog_entry.class.slugs
```
Just add it to your Gemfile:
``` ruby

6
lib/formtastic-slug/slug_input.rb
View File

@ -34,6 +34,10 @@ class SlugInput < Formtastic::Inputs::StringInput
target_method_name.to_s.gsub(/[\?\/\-]$/, '')
end
def existing_slugs
options[:existing_slugs] || []
end
def slug_js_setup
(<<-JS).html_safe
<script type="text/javascript">
@ -41,7 +45,7 @@ class SlugInput < Formtastic::Inputs::StringInput
var targetField = $('##{target_dom_id}');
var slugField = $('##{dom_id}');
var slugInputWrap = $('##{dom_id}_input');
var existingSlugs = #{options[:existing_slugs].to_json}
var existingSlugs = #{existing_slugs.to_json};
var startingSlug = slugField.val();
var setSlug = function(text) {