Odoo - 如何从另一个模块更新字段值

Question

我正在尝试创建一个模块来管理员工的旅行离开。

我需要做的是在'available_tickets'的hr.employee模块中添加额外的float字段。从其他名为“travel_request”的模块分配。这个怎么做？ 这里是我的代码：

class travel_request(osv.osv): 

    _name = 'travel.request' 

    _columns = { 

     'no_tickets': fields.float('Number of Tickets'), 

    } 

class hr_employee(osv.osv): 
_inherit="hr.employee" 


def _get_tickets(self, cr, uid, ids, field_name, args, context=None): 
    res = {} 
    tickets_obj = self.pool.get('travel.request') 
    tickets_ids = self.pool.get('travel.request').search(cr, uid, [('user_id', '=', uid), ('state', '=', 'validate')]) 
    for t_id in tickets_ids : 
     emp_ticket = tickets_obj.browse(cr, uid, t_id, context=context) 

    res['available_tickets'] = emp_ticket.no_tickets 
    return res  


_columns = { 
    'available_tickets': fields.function(_get_tickets, string='Available Tickets', type="float", store=True), 
} 

我也试过这个方法：

def _get_tickets(self, cr, uid, ids, field_name, args, context=None): 
    res = {} 
    tickets_obj = self.pool.get('travel.request') 
    for record in self.browse(cr, uid, ids, context=None): 
     tickets_ids = tickets_obj.search(cr, uid, [('user_id', '=', uid), ('state', '=', 'validate')], ids, context=None) 
     emp_ticket = tickets_obj.browse(cr, uid, tickets_ids[0], context=None) 
     res['available_tickets'] = emp_ticket.no_tickets   
    return res 

但是什么都没有发生，我不知道什么是错的..任何人都可以帮我解决这个问题

这里的错误消息：

2016-02-16 13:29:14,549 27608 ERROR test2_travel openerp.http: Exception during JSON request handling. 
Traceback (most recent call last): 
    File "/opt/odoo8/odoo/openerp/http.py", line 537, in _handle_exception 
    return super(JsonRequest, self)._handle_exception(exception) 
    File "/opt/odoo8/odoo/openerp/http.py", line 574, in dispatch 
    result = self._call_function(**self.params) 
    File "/opt/odoo8/odoo/openerp/http.py", line 310, in _call_function 
    return checked_call(self.db, *args, **kwargs) 
    File "/opt/odoo8/odoo/openerp/service/model.py", line 118, in wrapper 
    return f(dbname, *args, **kwargs) 
    File "/opt/odoo8/odoo/openerp/http.py", line 307, in checked_call 
    return self.endpoint(*a, **kw) 
    File "/opt/odoo8/odoo/openerp/http.py", line 803, in __call__ 
    return self.method(*args, **kw) 
    File "/opt/odoo8/odoo/openerp/http.py", line 403, in response_wrap 
    response = f(*args, **kw) 
    File "/opt/odoo8/odoo/addons/web/controllers/main.py", line 944, in call_kw 
    return self._call_kw(model, method, args, kwargs) 
    File "/opt/odoo8/odoo/addons/web/controllers/main.py", line 936, in _call_kw 
    return getattr(request.registry.get(model), method)(request.cr, request.uid, *args, **kwargs) 
    File "/opt/odoo8/odoo/openerp/api.py", line 268, in wrapper 
    return old_api(self, *args, **kwargs) 
    File "/opt/odoo8/odoo/addons/hr_holidays/hr_holidays.py", line 494, in create 
    return super(hr_employee, self).create(cr, uid, vals, context=context) 
    File "/opt/odoo8/odoo/openerp/api.py", line 268, in wrapper 
    return old_api(self, *args, **kwargs) 
    File "/opt/odoo8/odoo/addons/hr/hr.py", line 285, in create 
    employee_id = super(hr_employee, self).create(cr, uid, data, context=context) 
    File "/opt/odoo8/odoo/openerp/api.py", line 268, in wrapper 
    return old_api(self, *args, **kwargs) 
    File "/opt/odoo8/odoo/addons/mail/mail_thread.py", line 381, in create 
    thread_id = super(mail_thread, self).create(cr, uid, values, context=context) 
    File "/opt/odoo8/odoo/openerp/api.py", line 268, in wrapper 
    return old_api(self, *args, **kwargs) 
    File "/opt/odoo8/odoo/openerp/api.py", line 372, in old_api 
    result = method(recs, *args, **kwargs) 
    File "/opt/odoo8/odoo/openerp/models.py", line 4094, in create 
    record = self.browse(self._create(old_vals)) 
    File "/opt/odoo8/odoo/openerp/api.py", line 266, in wrapper 
    return new_api(self, *args, **kwargs) 
    File "/opt/odoo8/odoo/openerp/api.py", line 508, in new_api 
    result = method(self._model, cr, uid, *args, **old_kwargs) 
    File "/opt/odoo8/odoo/openerp/models.py", line 4279, in _create 
    result += self._columns[field].set(cr, self, id_new, field, vals[field], user, rel_context) or [] 
    File "/opt/odoo8/odoo/openerp/osv/fields.py", line 1486, in set 
    self._fnct_inv(obj, cr, user, id, name, value, self._fnct_inv_arg, context) 
    File "/opt/odoo8/odoo/addons/hr/hr.py", line 186, in _set_image 
    return self.write(cr, uid, [id], {'image': tools.image_resize_image_big(value)}, context=context) 
    File "/opt/odoo8/odoo/openerp/api.py", line 268, in wrapper 
    return old_api(self, *args, **kwargs) 
    File "/opt/odoo8/odoo/addons/mail/mail_thread.py", line 432, in write 
    result = super(mail_thread, self).write(cr, uid, ids, values, context=context) 
    File "/opt/odoo8/odoo/openerp/api.py", line 268, in wrapper 
    return old_api(self, *args, **kwargs) 
    File "/opt/odoo8/odoo/openerp/api.py", line 399, in old_api 
    result = method(recs, *args, **kwargs) 
    File "/opt/odoo8/odoo/openerp/models.py", line 3789, in write 
    self._write(old_vals) 
    File "/opt/odoo8/odoo/openerp/api.py", line 266, in wrapper 
    return new_api(self, *args, **kwargs) 
    File "/opt/odoo8/odoo/openerp/api.py", line 592, in new_api 
    result = method(self._model, cr, uid, self.ids, *args, **old_kwargs) 
    File "/opt/odoo8/odoo/openerp/models.py", line 4037, in _write 
    cr, user, todo, fields_to_recompute, context) 
    File "/opt/odoo8/odoo/openerp/api.py", line 268, in wrapper 
    return old_api(self, *args, **kwargs) 
    File "/opt/odoo8/odoo/openerp/models.py", line 4453, in _store_set_values 
    cr.execute(query, (column._symbol_set[1](value), id)) 
    File "/opt/odoo8/odoo/openerp/sql_db.py", line 158, in wrapper 
    return f(self, *args, **kwargs) 
    File "/opt/odoo8/odoo/openerp/sql_db.py", line 234, in execute 
    res = self._obj.execute(query, params) 
DataError: invalid input syntax for integer: "available_tickets" 
LINE 1: ...ployee" SET "available_tickets"='5.00' WHERE id = 'available... 

Answer 1

您有多个问题。

1.你的错误信息

错误消息DataError: invalid input syntax for integer: "available_tickets"点，你的错误。您的计算字段实现返回一个dict，其中"available_tickets"作为关键字而不是员工标识。因此，当系统尝试更新数据库时，它无法找到ID为"available_tickets"的员工记录。

问题出在get_tickets()：

res['available_tickets'] = emp_ticket.no_tickets 

您需要遍历传递给get_tickets()员工ids并返回结果res，看起来像这样：所以

{ 
    1: 3.0, # 3 `available_tickets` for employee ID 1 
    2: 4.0, # 4 `available_tickets` for employee ID 2 
    ... 
} 

在get_tickets()你应该有这样的事情：

res[emp.id] = <computed number of tickets> # emp = hr.employee record! 

请查看用于编写计算字段（old API,new API）的文档或官方Odoo模块中的示例以获取灵感。

2.您的计算字段逻辑

您当前（草案？）实现的get_tickets()变得毫无意义：

• 它应该对所请求的hr.employee ID的主循环。这很重要，因为Odoo计算字段是由系统批量计算的。
• 它应该可能不依赖于当前用户来计算结果。目前您正在通过此域('user_id', '=', uid)搜索当前用户的travel.requests。这意味着您正在查看正在查看或修改员工的用户的travel.requests，而不是该员工的用户。这是应该使用ids变量的地方;以browse为您计算值的员工，然后搜索相应的travel.request。
• 如果您要存储计算值（store=True），则需要适当的重新计算触发器，否则当您修改/添加travel.request时，存储值不会更改。在新的API中，这是通过@api.depends完成的，并且在旧API中通过传递store字典来完成，如文档中所述。

阅读官方插件的文档和源代码实际上是了解Odoo计算字段的最佳方式。