openerp学习笔记 视图中字段只变化(on_change)联动其他字段值、选择和过滤

1.修改产品数量时，自动计算产品销售金额、销售成本和销售利润
<field name="num" on_change="on_change_product(product, num, price)"/>
2.选择历史工单时，按销售单中当前选择的客户自动过滤，打开选择历史工单窗口时，过滤条件默认为销售单中当前选择的客户
<field name="work_order" domain="[('customer','=',customer)]" context="{'search_default_customer':customer}"/>

代码示例：

<!-- views dispatch_sale_form -->
    <record model="ir.ui.view"
id="dispatch_sale_form">
      <field
name="name">dispatch.sale.form</field>
     
<field
name="model">dispatch.sale</field>
     
<field name="type">form</field>
     
<field name="priority">2</field>
     
<field name="arch" type="xml">
    <form
string="销售单明细"
version="7.0">
        
<header>
            
<button string="确认" name="set_to_confirmed" states="draft" type="object"
icon="gtk-yes"/>
            
<button string="还原为草稿" name="set_to_draft" states="confirmed" type="object"
icon="gtk-convert"
groups="kl_dispatch.group_dispatch_manager"/>
            
<field name="state" widget="statusbar" statusbar_visible="draft,confirmed"
statusbar_colors='{"draft":"blue"}'/>
        
</header>
       
<sheet>
          
<group>
          
<group>
             
<field
name="date"/>
             
<field
name="name"/>
             
<field
name="customer"/>
             
<field name="product" on_change="on_change_product(product, num,
price)"/>
             
<field name="num" on_change="on_change_product(product, num,
price)"/>
             
<field name="price" on_change="on_change_product(product, num,
price)"/>
             
<field name="cost" on_change="on_change_product(product, num, price)" 
invisible="1"/>
             
<field name="cost_view"
invisible="0"/>
          
</group>         

          
<group>
             
<field name="employee_id"
on_change="onchange_employee_id(employee_id)"/>
             
<field
name="department_id"/>
             
<field name="work_order" domain="[('customer','=',customer)]"
context="{'search_default_customer':customer}"/>
             
<field
name="klbh"/>
             
<field
name="sum_sale"/>
             
<field
name="sum_cost"/>
             
<field
name="sum_profit"/>
          
</group>
         
</group>
            
<group>
            
 <field name="note"
colspan="4"/>
            
</group>
         
</sheet>
       
</form>
     
</field>
    </record>

    #职员修改自动更改部门

    def onchange_employee_id(self, cr, uid, ids,
employee_id,
context=None):
       
department_id = False
        if
employee_id:
           
emp_obj =
self.pool.get('hr.employee')
           
employee = emp_obj.browse(cr, uid, employee_id,
context=context)
           
department_id =
employee.department_id.id
        return
{'value': {'department_id': department_id}}

   
#产品、数量、单价、成本更改，自动计算销售金额、成本金额、利润金额
    def
on_change_product(self,cr,uid,ids,product_id, num,
price):
       
v={}
        if
product_id:
           
product=self.pool.get("dispatch.product").browse(cr,uid,product_id)
           
v["cost"]=product.cost
           
v["cost_view"]=product.cost
       
else:
           
v["cost"]=0
           
v["cost_view"]=0
       
v['sum_sale']=num*price
       
v['sum_cost']=num*v["cost"]
       
v['sum_profit']=v['sum_sale']-v['sum_cost']
       
return {"value":v}

    #按销售单中对应的客户，自动过滤选择工单
domain="[('customer','=',customer)]" ，打开选择窗口时过滤条件默认客户
context="{'search_default_customer':customer}"
          
<group>
             
<field
name="date"/>
             
<field
name="name"/>
             
<field
name="customer"/>
             
<field name="product" on_change="on_change_product(product, num,
price)"/>
             
<field name="num" on_change="on_change_product(product, num,
price)"/>
             
<field name="price" on_change="on_change_product(product, num,
price)"/>
             
<field name="cost" on_change="on_change_product(product, num, price)" 
invisible="1"/>
             
<field name="cost_view"
invisible="0"/>
          
</group>
          
<group>
             
<field name="employee_id"
on_change="onchange_employee_id(employee_id)"/>
             
<field
name="department_id"/>
             
<field name="work_order" domain="[('customer','=',customer)]"
context="{'search_default_customer':customer}"/>
             
<field
name="klbh"/>
             
<field
name="sum_sale"/>
             
<field
name="sum_cost"/>
             
<field
name="sum_profit"/>
          
</group>