如何在OpenERP 7中添加自动增量字段？

Question

我搜索并修改了一个简单的openerp自定义模块的源代码,我给出了下面的代码

init .py

import sim

openerp .py

{
'name': 'Student Information Management',
'version': '0.1',
'category': 'Tools',
'description': """This module is for the Student Information Management.""",
'author': 'Mr Praveen Srinivasan',
    'website': 'http://praveenlearner.wordpress.com/',
'depends': ['base'],
'data': ['sim_view.xml'],
'demo': [],
'installable': True,
    'auto_install': False,
    'application': True,
}

sim_view.xml

<?xml version="1.0"?>
<openerp>
<data>
<!-- ============== student================= -->
<!-- 1st part of the sim_view start-->
<record model="ir.ui.view" id="student_form">
<field name="name">Student</field>
<field name="model">sim.student</field>
<field name="type">form</field>
<field name="arch" type="xml">
<form string="Student" version="7.0">
<group>
<field name="reg_no"/>
<field name="student_name"/>
<field name="father_name"/>
<field name="gender"/>
<field name="contact_no"/>
<field name="address"/>
</group>
</form>
</field>
</record>
<!-- 1st part of the sim_view end-->

<!--2nd part of the sim_view start-->
<record model="ir.ui.view" id="student_tree">
<field name="name">Student</field>
<field name="model">sim.student</field>
<field name="type">tree</field>
<field name="arch" type="xml">
<tree string="Student">
<field name="reg_no"/>
<field name="student_name"/>
<field name="father_name"/>
<field name="gender"/>
<field name="contact_no"/>
<field name="address"/>
</tree>
</field>
</record>
<!--2nd part of the sim_view end-->

<!-- 3rd part of the sim_view start-->
<record model="ir.actions.act_window" id="action_student">
<field name="name">Student</field>
<field name="res_model">sim.student</field>
<field name="view_type">form</field>
<field name="view_mode">tree,form</field>
</record>
<!--3rd part of the sim_view end-->

<!--4th part of the sim_view start-->
<menuitem name="SIM/Student/StudentInfo" id="menu_sim_student"  
      action="action_student"/>
<!--4th part of the sim_view end-->
</data>
</openerp>

sim.py

**

    from openerp.osv import fields, osv
    class student(osv.osv):
        _name = "sim.student"
        _description = "This table is for keeping personal data of student"
        _columns = {
            'reg_no': fields.integer('Registration Number',size=7,required=True),
            'student_name': fields.char('Student Name',size=25,required=True),
            'father_name': fields.char("Father's Name",size=25),
            'gender':fields.selection([('male','Male'),('female','Female')],'Gender'),
            'contact_no':fields.char('Contact Number',size=10),
            'address':fields.char('Address',size=256)
        }
        _sql_constraints = [
        ('uniq_name', 'unique(reg_no)', 'This Reg.No is number already registered!') 
        ]

    student()

**

一切都很好,但我想添加一个自动递增的注册ID字段.我搜索了互联网如何做到这一点,但我无法得到适当的解决方案.请帮我.

Answer 1

创建序列文件后,您可以将此功能添加到您的sim.py中

def create(self, cr, uid, vals, context=None):
    sequence=self.pool.get('ir.sequence').get(cr, uid, 'reg_code')
    vals['reg_no']=sequence
    return super(student, self).create(cr, uid, vals, context=context)

此功能将正常工作