Openerp v7 API 函数字段 'one2many' 类型

Question

单击树视图记录时，我想打开表单视图。当打开该窗体视图时，我有两个需要动态填充的 one2many 字段（在我的例子中，我有一个产品列表，点击一个产品我想搜索该产品有多少库存移动）

def get_last_sales(self, cr, uid, ids, context=None):
    customer_loc_id = self.pool.get('stock.location').search(cr, uid, [('usage', '=', 'customer')])
    result = self.pool.get('stock.move').search(cr, uid, [('product_id', '=', ids), ('location_dest_id', '=', customer_loc_id)])
    print result
    #raise Exception
    return result

def get_last_productions(self, cr, uid, ids, context=None, args=None, kwargs=None):
    production_loc_id = self.pool.get('stock.location').search(cr, uid, [('usage', '=', 'production')])
    result = self.pool.get('stock.move').search(cr, uid, [('product_id', '=', ids), ('location_dest_id', '=', production_loc_id)])
    return result

我想要的是与 fields.function 字段类似的功能。这应该有效，但没有：

'last_sales':fields.function(_get_last_sales, type='one2many', relation='stock.move', readonly=True, store=store_triggers)

Server Traceback (most recent call last): File "/home/george/odoo/mattia_v7/openerp/addons/web/session.py", line 89, in send return openerp.netsvc.dispatch_rpc(service_name, method, args) File "/home/george/odoo/mattia_v7/openerp/netsvc.py", line 296, in dispatch_rpc result = ExportService.getService(service_name).dispatch(method, params) File "/home/george/odoo/mattia_v7/openerp/service/web_services.py", line 626, in dispatch res = fn(db, uid, *params) File "/home/george/odoo/mattia_v7/openerp/osv/osv.py", line 190, in execute_kw return self.execute(db, uid, obj, method, *args, **kw or {}) File "/home/george/odoo/mattia_v7/openerp/osv/osv.py", line 132, in wrapper return f(self, dbname, *args, **kwargs) File "/home/george/odoo/mattia_v7/openerp/osv/osv.py", line 199, in execute res = self.execute_cr(cr, uid, obj, method, *args, **kw) File "/home/george/odoo/mattia_v7/openerp/osv/osv.py", line 187, in execute_cr return getattr(object, method)(cr, uid, *args, **kw) File "/home/george/odoo/mattia_v7/openerp/osv/orm.py", line 3718, in read result = self._read_flat(cr, user, select, fields, context, load) File "/home/george/odoo/mattia_v7/openerp/osv/orm.py", line 3841, in _read_flat res2 = self._columns[f].get(cr, self, ids, f, user, context=context, values=res) File "/home/george/odoo/mattia_v7/openerp/osv/fields.py", line 1152, in get result = self._fnct(obj, cr, uid, ids, name, self._arg, context) File "/home/george/odoo/mattia_v7/openerp/addons/product/product.py", line 461, in _product_lst_price res[product.id] = product.list_price File "/home/george/odoo/mattia_v7/openerp/osv/orm.py", line 503, in __getattr__ return self[name] File "/home/george/odoo/mattia_v7/openerp/osv/orm.py", line 469, in __getitem__ elif field_column._type in ('one2many', 'many2many') and len(result_line[field_name]): TypeError: object of type 'bool' has no len()

我可以在 https://www.odoo.com/forum/help-1/question/can-i-store-field-function-with-the-type-one2many-356

上看到

这似乎不受支持。那里的答案正确吗？有什么解决方法吗？

Answer 1

尝试使用以下代码：

def get_last_sales(self, cr, uid, ids, context=None):

    customer_loc_id = self.pool.get('stock.location').search(cr, uid, [('usage', '=', 'customer')])
    result = {}

    if customer_loc_id:

        for record in self.browse(cr, uid, ids):

            result[record.id] = self.pool.get('stock.move').search(cr, uid, [('product_id', '=', record.id), ('location_dest_id', '=', customer_loc_id[0])])

    return result

def get_last_productions(self, cr, uid, ids, context=None, args=None, kwargs=None):

    production_loc_id = self.pool.get('stock.location').search(cr, uid, [('usage', '=', 'production')])
    result = {}

    if production_loc_id:

        for record in self.browse(cr, uid, ids):

            result[record.id] =  self.pool.get('stock.move').search(cr, uid, [('product_id', '=', record.id), ('location_dest_id', '=', production_loc_id[0])])

    return result

'last_sales':fields.function(_get_last_sales, type='one2many', relation='stock.move', readonly=True, string='Last Sales')

Answer 2

是的，存储 x2many 函数或计算字段根本没有意义。为什么？这两种类型都需要一些特殊的设置，这不能在字段定义上进行。在 one2many 上，您需要另一个模型上的相关外键。在 many2many 上，您必须为两个模型键定义 table。

我使用 odoo 的经验表明：使用未存储的 many2many 函数字段（函数需要 return 其常用字典中的 id 列表）。

另外，正如@Odedra 在他的回答中提到的那样，您的函数不正确。

Openerp v7 API 函数字段 'one2many' 类型

Openerp v7 API function field 'one2many' type

python

openerp

openerp-7