Module: ErpTechSvcs::Utils::DefaultNestedSetMethods::ClassMethods

Defined in:
lib/erp_tech_svcs/utils/default_nested_set_methods.rb

Instance Method Summary collapse

Instance Method Details

#find_by_ancestor_iids(iids) ⇒ Object

allows you to find a nested set element by the internal_identifiers in its ancestry for example, to find a GlAccount whose internal_identifier is “site_4”, and whose parent’s internal_identifier is “nightly_room_charge”and whose grandparent’s internal_identifier is “charge”, you would make this call: gl_account = GlAccount.find_by_iids([‘charge’, ‘nightly_room_charge’, “site_4”])



45
46
47
48
49
50
51
52
53
54
55
56
57
58
 
# File 'lib/erp_tech_svcs/utils/default_nested_set_methods.rb', line 45

def find_by_ancestor_iids(iids)
  return nil unless iids.is_a? Array

  node = nil
  iids.each do |iid|
    if (iid == iids.first)
      node = where("parent_id is null and internal_identifier = ?",iid).first
    else
      node = where("parent_id = ? and internal_identifier = ?",node.id,iid).first
    end
    return nil if node.nil?
  end
  return node
end

#find_children(parent_id = nil) ⇒ Object 



36
37
38
 
# File 'lib/erp_tech_svcs/utils/default_nested_set_methods.rb', line 36

def find_children(parent_id = nil)
	parent_id.to_i == 0 ? self.roots : find(parent_id).children
end

#find_roots ⇒ Object 



32
33
34
 
# File 'lib/erp_tech_svcs/utils/default_nested_set_methods.rb', line 32

def find_roots
	where("parent_id = nil")
end