Key error! 扩展product模块错误

[Wingedox]

个人觉得Tiny ERP 在小企业应用中非常适合。灵活，模块化，而且应该开发难度不高。现有的模块已经具备基本功能，有些特殊的需求能很快开发出扩展模块，自带workfolw 引擎，能满足业务流程定制，自定义报表。。。。

现在正在研究模块开发，现在遇到一些问题，希望能得到高人指点。

我写的测试模块是在原有product 模块基础上扩展部分功能，原有的product 模块没有产品属性，只有产品分类

实体类文件product_new.py：[code]from osv import fields, osv

class product_property(osv.osv):
def name_get(self, cr, uid, ids, context={}):
if not len(ids):
return []
reads = self.read(cr, uid, ids, ['name','parent_id'], context)
res = []
for record in reads:
name = record['name']
if record['parent_id']:
name = record['parent_id'][1]+' / '+name
res.append((record['id'], name))
return res

    def _name_get_fnc(self, cr, uid, ids, prop, unknow_none, unknow_dict):
            res = self.name_get(cr, uid, ids)
            return dict(res)
    def _check_recursion(self, cr, uid, ids):
            level = 100
            while len(ids):
                    cr.execute('select distinct parent_id from product_property where id in ('+','.join(map(str,ids))+')')
                    ids = filter(None, map(lambda x:x[0], cr.fetchall()))
                    if not level:
                            return False
                    level -= 1
            return True

    _description='Prodcut Property'
    _name = 'product.property'
    _columns = {
            'name': fields.char('Property Name', required=True, size=64),
            'parent_id': fields.many2one('product.property', 'Parent Property', select=True),
            'complete_name': fields.function(_name_get_fnc, method=True, type="char", string='Name'),
            'child_ids': fields.one2many('product.property', 'parent_id', 'Childs Category'),
            'active' : fields.boolean('Active'),
    }
    _constraints = [
            (_check_recursion, 'Error ! You can not create recursive properties.', ['parent_id'])
    ]
    _defaults = {
            'active' : lambda *a: 1,
    }
    _order = 'parent_id,name'

product_property()

class product_product(osv.osv):
_name = "product.product"
_inherit = "product.product"
_columns = {
'property_ids': fields.many2many("product.property", "product_property_rel", "product_id", "property_id", "roperties"),
}
product_product()[/code]
视图定义product_new_view.xml

发不上来，见附件

报错信息：[code]Traceback (most recent call last):
File "netsvc.pyo", line 200, in _dispatch
File "serviceweb_services.pyo", line 366, in execute
File "osvosv.pyo", line 111, in execute
File "osvosv.pyo", line 92, in execute_cr
File "osvorm.pyo", line 1544, in fields_view_get
File "osvorm.pyo", line 1409, in __view_look_dom_arch
KeyError: u'property_ids'[/code]找了很久不知错误在哪里，请帮忙指点。

[[i] 本帖最后由 Wingedox 于 2008-4-3 20:30 编辑 [/i]]

[Wingedox]

手工写代码的确容易错误，把product.template 写成了product.product ，因此在product.template 中根本就没有property_ids 属性，所以报错。现在基本通过，没有什么使用价值纯粹学习用，发上来供参考。

如果熟练后写模块应该是比较快的，和其他的ERP 相比Tiny ERP 的确相当灵活

[[i] 本帖最后由 Wingedox 于 2008-4-3 21:08 编辑 [/i]]