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
|
# File 'lib/occams/extensions/acts_as_tree.rb', line 9
def cms_acts_as_tree(options = {})
configuration = {
foreign_key: 'parent_id',
order: nil,
counter_cache: nil,
dependent: :destroy,
touch: false
}
configuration.update(options) if options.is_a?(Hash)
belongs_to :parent,
optional: true,
class_name: name,
foreign_key: configuration[:foreign_key],
counter_cache: configuration[:counter_cache],
touch: configuration[:touch]
has_many :children,
-> { order(configuration[:order]) },
class_name: name,
foreign_key: configuration[:foreign_key],
dependent: configuration[:dependent]
class_eval " include Occams::Extensions::ActsAsTree::InstanceMethods\n\n scope :roots, -> {\n where(\"\#{configuration[:foreign_key]} IS NULL\").\n order(\#{configuration[:order].nil? ? 'nil' : %(\"\#{configuration[:order]}\")})\n }\n\n def self.root\n roots.first\n end\n\n validates_each \"\#{configuration[:foreign_key]}\" do |record, attr, value|\n if value\n if record.id == value\n record.errors.add attr, \"cannot be it's own id\"\n elsif record.descendants.map {|c| c.id}.include?(value)\n record.errors.add attr, \"cannot be a descendant's id\"\n end\n end\n end\n RUBY\nend\n", __FILE__, __LINE__ + 1
|