如何实现sale.order.line中的sequence字段自增？

[youring]

OpenERP 7.0
sale.order.line中的sequence字段默认值为10，通过widget="handle"显示在界面上，而不是直接的数字

<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;tree string=&quot;Sales Order Lines&quot; editable=&quot;bottom&quot;&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;field name=&quot;sequence&quot; widget=&quot;handle&quot;/&gt;<br />

现在想要将sequence再次显示在订单行中，
视图部分简单：

<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;xpath expr=&quot;//tree/field[@name=&#039;product_id&#039;]&quot; position=&quot;before&quot;&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;field name=&quot;sequence&quot; string=&quot;序号&quot;/&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;/xpath&gt;<br />

但希望每个订单中，sequence字段从1开始自动增号，并且添加一个订单明细时，如果取消当前添加项目后，再添加新项目时不跳号，如何实现呢？

试了shelly神的改代码打法， [检测到链接无效，已移除]
'sequence': lambda self, cr, uid, context=None: self.pool.get('ir.sequence').get(cr, uid, 'sale.order.line'),
失败了....

期待大神们现身说法...

[wangpc]

在创建时给予赋值，意味着你的ir.sequence在你点击添加项目的时候就已经生存了一个sequence，你取消订单行，并不能改变ir.sequence表中的值
你可以在保存的时候在给sequence赋值，做法就是参照saler.order中的name的写法，改写create的方法（点击保存的时候才调用create，也就只是你想保存的时候才生存sequence）

<br />&nbsp; &nbsp;  _defaults = {<br />&nbsp; &nbsp; &nbsp; &nbsp;  &#039;sequence&#039;: &#039;/&#039;,<br />&nbsp; &nbsp; &nbsp; &nbsp; }<br /><br />&nbsp; &nbsp; def create(self, cr, uid, vals, context=None):<br />&nbsp; &nbsp; &nbsp; &nbsp; if vals.get(&#039;sequence&#039;,&#039;/&#039;)==&#039;/&#039;:<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; vals&#91;&#039;sequence&#039;] = self.pool.get(&#039;ir.sequence&#039;).get(cr, uid, &#039;sale.order.line&#039;) or &#039;/&#039;<br />&nbsp; &nbsp; &nbsp; &nbsp; return super(sale_order_line, self).create(cr, uid, vals, context=context)<br />

[youring]

ValueError: invalid literal for int() with base 10: &#039;/&#039;<br />

鉴于sequence是整数，默认值改为： 1

sale.py

# -*- coding: utf-8 -*-<br /><br />from openerp.osv import osv, fields<br /><br />class sale_order_line(osv.osv):<br /><br />&nbsp; &nbsp; _inherit = &quot;sale.order.line&quot;<br /><br />&nbsp; &nbsp; _defaults = {<br />&nbsp; &nbsp; &nbsp; &nbsp;  &#039;sequence&#039;: &#039;1&#039;,<br />&nbsp; &nbsp; &nbsp; &nbsp; }<br /><br />&nbsp; &nbsp; def create(self, cr, uid, vals, context=None):<br />&nbsp; &nbsp; &nbsp; &nbsp; if vals.get(&#039;sequence&#039;,&#039;1&#039;)==&#039;1&#039;:<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; vals&#91;&#039;sequence&#039;] = self.pool.get(&#039;ir.sequence&#039;).get(cr, uid, &#039;sale.order.line&#039;) or &#039;1&#039;<br />&nbsp; &nbsp; &nbsp; &nbsp; return super(sale_order_line, self).create(cr, uid, vals, context=context)&nbsp; &nbsp;  

sale_view.xml

&lt;?xml version=&quot;1.0&quot;?&gt;<br />&lt;openerp&gt;<br />&nbsp; &nbsp; &lt;data&gt;<br /><br />&nbsp; &nbsp; &nbsp; &lt;record model=&quot;ir.ui.view&quot; id=&quot;sale_order_form_add_line_seq&quot;&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &lt;field name=&quot;name&quot;&gt;sale.odrer.form.add.line.seq&lt;/field&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &lt;field name=&quot;model&quot;&gt;sale.order&lt;/field&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &lt;field name=&quot;inherit_id&quot; ref=&quot;sale.view_order_form&quot;/&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &lt;field name=&quot;arch&quot; type=&quot;xml&quot;&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;xpath expr=&quot;//tree/field[@name=&#039;product_id&#039;]&quot; position=&quot;before&quot;&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;field name=&quot;sequence&quot; string=&quot;序&quot;/&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;/xpath&gt;<br /><br />&nbsp; &nbsp; &nbsp; &nbsp; &lt;/field&gt;<br />&nbsp; &nbsp; &nbsp; &lt;/record&gt;<br /><br />&nbsp; &nbsp; &lt;/data&gt;<br />&lt;/openerp&gt;<br />

sale_sequence.xml

&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;<br />&lt;openerp&gt;<br />&nbsp; &nbsp; &lt;!-- &lt;data noupdate=&quot;1&quot;&gt; --&gt;<br />&nbsp; &nbsp; &lt;data noupdate=&quot;1&quot;&gt;<br /><br />&nbsp; &nbsp; &nbsp; &nbsp; &lt;!-- Sequences for sale.order.line --&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &lt;record id=&quot;seq_type_sale_order_line&quot; model=&quot;ir.sequence.type&quot;&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;field name=&quot;name&quot;&gt;Sales Order Line&lt;/field&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;field name=&quot;code&quot;&gt;sale.order.line&lt;/field&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &lt;/record&gt;<br /><br />&nbsp; &nbsp; &nbsp; &nbsp; &lt;record id=&quot;seq_sale_order&quot; model=&quot;ir.sequence&quot;&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;field name=&quot;name&quot;&gt;Sales Order Line&lt;/field&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;field name=&quot;code&quot;&gt;sale.order.line&lt;/field&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;field name=&quot;prefix&quot;&gt;&lt;/field&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;field name=&quot;padding&quot;&gt;2&lt;/field&gt;<br />&nbsp; &nbsp; &nbsp; &nbsp; &lt;/record&gt;<br /><br />&nbsp; &nbsp; &lt;/data&gt;<br />&lt;/openerp&gt;

以上实现了自增，但另外新建一个订单的时候，序号没法重置为1；

buke的ir_sequence_autoreset模块貌似只能按时间重置，不知道怎么按新订单重置line的序号...

[mrshelly]

其实, 没有必要自增... 可以制完单后, 手工调整一下顺序即可.


参见  ir.ui.menu  对象的手动调整顺序后的序号自编相关代码.

[youring]

自增主要是为了方便统计个数，对于经常5个以上的产品输入就很有必要了。
最好是这个字段能实时显示，存不存储在数据库中到无所谓...就像rml报表中的seq标签 [检测到链接无效，已移除]

[mrshelly]

你这个直接写个模块. 使用JS 部分就可以搞定的...

有预算直接用RMB 砸向 @广州-步科