openerp学习笔记 单据自动编号(编码规则)

说明：

　　单据自动编码允许定义 单据前缀+按当前年、月、日、时、分、秒+流水号+单据后缀
　　单据自动编号允许按所有公司统一编号或按分公司单独编号
　　[b]单据自动编号中的流水号部分未按月重新编号，不断累计，当超出定义长度时，自动进位增加位数
[/b]　　暂时未实现按月重新编号，需要每月手工在设置中改变下一编号（客户肯定不会同意这样做的，待解决）

[b][b]示例代码 xml 部分，编码规则定义：[/b]
sale_sequence.xml[/b]

<?xml version="1.0" encoding="utf-8"?>
<openerp>
<data noupdate="1">
<!-- Sequences for dispatch.sale -->
<record id="seq_type_dispatch_sale" model="ir.sequence.type">
<field name="name">Dispatch Sale</field>
<field name="code">dispatch.sale</field>
</record>
<record id="seq_dispatch_sale" model="ir.sequence">
<field name="name">Dispatch Sale</field>
<field name="code">dispatch.sale</field>
<field name="prefix">po-%(y)s%(month)s-</field>
<field name="padding">4</field>
<field name="company_id" eval="False"/>
</record>
</data>
</openerp>



[b]示例代码 python 部分：[/b]

_columns={

'name':fields.char(u'单号', size=64, select=True, required=True,
readonly=True),

'date':fields.date(u'日期', select=True, required=True,
readonly=True),

'month':fields.function(_get_month, method=True, type='char', size=10, string =
u'月份', store=True,
invisible=True),

"customer":fields.many2one("dispatch.customer","客户", select=True, required=True,
readonly=True,
states={'draft':[('readonly',False)]}),

"product":fields.many2one("dispatch.product","产品", select=True, required=True,
readonly=True,
states={'draft':[('readonly',False)]}),

'price':fields.float(u'单价', digits=(18, 2), required=True, readonly=True,
states={'draft':[('readonly',False)]}),

'num':fields.integer(u'数量', required=True, readonly=True,
states={'draft':[('readonly',False)]}),

'cost':fields.float(u'成本', digits=(18, 2), required=True,
invisible=False),

'cost_view':fields.function(_view_cost, method=True, type='float', digits=(18,
2), string = u'成本',
invisible=True),

'sum_sale':fields.function(_sum_sale, method=True, type='float', digits=(18, 2),
string = u'销售金额', store=True),

'sum_cost':fields.function(_sum_cost, method=True, type='float', digits=(18, 2),
string = u'成本金额', store=True),

'sum_profit':fields.function(_sum_profit, method=True, type='float', digits=(18,
2), string = u'利润金额', store=True),

'employee_id':fields.many2one('hr.employee',u'业务员', select=True, required=True,
readonly=True,
states={'draft':[('readonly',False)]}),

'department_id':fields.many2one('hr.department',u'部门', select=True,
required=True, readonly=True,
states={'draft':[('readonly',False)]}),

'klbh':fields.char(u'开龙单号',size=64,required=False, readonly=True,
states={'draft':[('readonly',False)]}),

"work_order":fields.many2one("dispatch.work_order","服务单", required=False,
readonly=True,
states={'draft':[('readonly',False)]}),

'note':fields.text(u'备注', readonly=True,
states={'draft':[('readonly',False)]}),

'state': fields.selection([('draft', u'草稿'),('confirmed', u'已确认')], u'状态',
select=True, readonly=True),

'create_uid': fields.many2one('res.users', u"创建用户", select=True,
invisible=False, readonly=True),
#需要在记录中读取该字段或者在视图中显示该字段时，对象中必须包含
}

_defaults={
'name': lambda
obj, cr, uid, context:
'/',

'date':fields.date.context_today,

#'employee_id':_employee_get,

'state':'draft'
}

#数据库约束
_sql_constraints =
[
('name_check',
"unique(name)",
u"单据编号已经存在且不允许重复."),

('num_check', "CHECK (num <> 0 )", u"销售数量不能等于 0 ."),

]

def create(self, cr, uid, vals,
context=None):
if
vals.get('name','/')=='/':

vals['name'] = self.pool.get('ir.sequence').get(cr, uid, 'dispatch.sale') or
'/'
return
super(dispatch_sale, self).create(cr, uid, vals, context=context)