saveAssociated Help

Hi people.. I have a trouble on the saveAssociated method, please if some onw could give me a help, my problem is that the the saveAssociated method is saying me that the model couldnt be saved, thanks

I am attaching the code and the bin link http://bin.cakephp.org/view/1231114400

1. /**
2. Estimation Model
3. **/
4.  
5. App::uses('AppModel', 'Model');
6.  
7. /**
8. * Estimation Model
9. *
10. * @property Referal $Referal
11. * @property Invoicing $Invoicing
12. * @property Contract $Contract
13. * @property SalePackage $SalePackage
14. */
15. class Estimation extends AppModel {
16.  
17.     /**
18.      * Validation rules
19.      *
20.      * @var array
21.      */
22.     public $validate = array(
23.         'referal_id' => array(
24.         'numeric' => array(
25.             'rule' => array('numeric'),
26.         ),
27.         ),
28.         'invoicing_id' => array(
29.         'numeric' => array(
30.             'rule' => array('numeric'),
31.         ),
32.         ),
33.         'vehicles_from' => array(
34.         'numeric' => array(
35.             'rule' => array('numeric'),
36.         ),
37.         ),
38.         'vehicles_to' => array(
39.         'numeric' => array(
40.             'rule' => array('numeric'),
41.         ),
42.         ),
43.         'expiration_days' => array(
44.         'numeric' => array(
45.             'rule' => array('numeric'),
46.         ),
47.         ),
48.         'active' => array(
49.         'boolean' => array(
50.             'rule' => array('boolean'),
51.         ),
52.         ),
53.         'status' => array(
54.         'boolean' => array(
55.             'rule' => array('boolean'),
56.         ),
57.         ),
58.     );
59.  
60.     //The Associations below have been created with all possible keys, those that are not needed can be removed
61.  
62.     /**
63.      * belongsTo associations
64.      *
65.      * @var array
66.      */
67.     public $belongsTo = array(
68.         'Referal' => array(
69.         'className' => 'Referal',
70.         'foreignKey' => 'referal_id',
71.         'conditions' => '',
72.         'fields' => '',
73.         'order' => ''
74.         ),
75.         'Invoicing' => array(
76.         'className' => 'Invoicing',
77.         'foreignKey' => 'invoicing_id',
78.         'conditions' => '',
79.         'fields' => '',
80.         'order' => ''
81.         )
82.     );
83.  
84.     /**
85.      * hasMany associations
86.      *
87.      * @var array
88.      */
89.     public $hasMany = array(
90.         'Contract' => array(
91.         'className' => 'Contract',
92.         'foreignKey' => 'estimation_id',
93.         'dependent' => false,
94.         'conditions' => '',
95.         'fields' => '',
96.         'order' => '',
97.         'limit' => '',
98.         'offset' => '',
99.         'exclusive' => '',
100.         'finderQuery' => '',
101.         'counterQuery' => ''
102.         ),
103.         'SalePackage' => array(
104.         'className' => 'SalePackage',
105.         'foreignKey' => 'estimation_id',
106.         'dependent' => false,
107.         'conditions' => '',
108.         'fields' => '',
109.         'order' => '',
110.         'limit' => '',
111.         'offset' => '',
112.         'exclusive' => '',
113.         'finderQuery' => '',
114.         'counterQuery' => ''
115.         )
116.     );
117.  
118. }
119.  
120.  
121. /**
122. Method for save data
123. **/
124. public function admin_add() {
125.         if ($this->request->is('post')) {
126.             //$this->Estimation->create();
127.             debug($this->request->data);
128.             if ($this->Estimation->saveAssociated($this->request->data)) {
129.                 $this->Session->setFlash(__('The estimation has been saved'));
130.                 /*if (isset($this->request->data['Estimation']['new']) && $this->request->data['Estimation']['new']) {
131.                     $this->redirect(array('controller' => 'estimations', 'action' => 'add'));
132.                 } else {
133.                     $this->redirect(array('controller' => 'estimations', 'action' => 'view', $this->Estimation->id));
134.                 }*/
135.             } else {
136.                 $this->Session->setFlash(__('The estimation could not be saved. Please, try again.'));
137.             }
138.         }
139.  
140.  
141. /**
142. The result  of the array debug before saving
143. **/
144. array(
145.     'Referal' => array(
146.         'biz_name' => 'EL BANANERO',
147.         'doc_type_id' => '3',
148.         'doc_number' => '2141232',
149.         'first_name' => 'RICARDO',
150.         'last_name' => 'OVIEDO',
151.         'address' => 'Arequipa',
152.         'email' => 'ricardo.oviedo@open-comet.com',
153.         'phone' => '',
154.         'mobile' => ''
155.     ),
156.     'Estimation' => array(
157.         'date' => '2012-07-18',
158.         'invoicing_id' => '1',
159.         'vehicles_from' => '9',
160.         'vehicles_to' => '10',
161.         'expiration_days' => '10',
162.         'comments' => 'Esto es una prueba',
163.         'sub_total' => '40',
164.         'taxes' => '7.2',
165.         'total' => '47.2',
166.         'new' => '0'
167.     ),
168.     'SalePackage' => array(
169.         (int) 0 => array(
170.             'product_id' => '1',
171.             'description' => 'PRODUCTO UNO',
172.             'price_package' => '10'
173.         ),
174.         (int) 1 => array(
175.             'product_id' => '1',
176.             'description' => 'PRODUCTO UNO',
177.             'price_package' => '10'
178.         ),
179.         (int) 2 => array(
180.             'product_id' => '1',
181.             'description' => 'PRODUCTO UNO',
182.             'price_package' => '10'
183.         ),
184.         (int) 3 => array(
185.             'product_id' => '1',
186.             'description' => 'PRODUCTO UNO',
187.             'price_package' => '10'
188.         )
189.     )
190. )

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