category.rb
1.34 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
class Category < ActiveRecord::Base
validates_presence_of :name, :environment_id
validates_uniqueness_of :slug,:scope => [ :environment_id, :parent_id ], :message => N_('%{fn} is already being used by another category.')
belongs_to :environment
acts_as_tree :order => 'name'
def full_name(sep = '/')
self.parent ? (self.parent.full_name(sep) + sep + self.name) : (self.name)
end
def level
self.parent ? (self.parent.level + 1) : 0
end
def top_level?
self.parent.nil?
end
def leaf?
self.children.empty?
end
def self.top_level_for(environment)
self.find(:all, :conditions => ['parent_id is null and environment_id = ?', environment.id ])
end
def name=(value)
self[:name] = value
unless self.name.blank?
self.slug = self.name.transliterate.downcase.gsub( /[^-a-z0-9~\s\.:;+=_]/, '').gsub(/[\s\.:;=_+]+/, '-').gsub(/[\-]{2,}/, '-').to_s
end
end
def slug=(value)
self[:slug] = value
unless self.slug.blank?
self.path = self.calculate_path
end
end
# calculates the full path to this category using parent's path.
def calculate_path
if self.top_level?
self.slug
else
self.parent.calculate_path + "/" + self.slug
end
end
before_create do |cat|
if cat.path == cat.slug && (! cat.top_level?)
cat.path = cat.calculate_path
end
end
end