原文轉自：https://www.cnblogs.com/zhaoweihang/p/9698852.html
<field name="partner_id" string="Customer"
widget="res_partner_many2one"
context="{'default_name': contact_name, 'default_street': street, 'default_city': city, 'default_state_id': state_id, 'default_zip': zip, 'default_country_id': country_id, 'default_function': function, 'default_phone': phone, 'default_mobile': mobile, 'default_email': email_from, 'default_user_id': user_id, 'default_team_id': team_id, 'default_website': website, 'show_vat': True}"
groups="base.group_no_one"/>
context 這是一個上下文，運用很靈活 得到整個context self.context_get()
self.env['res.users'].context_get() 得到context里面對應的值 得到flag的值 self.env.context.get('flag',False)
修改context里面的對應的值 self.with_context({'flag': False}) 或 self.with_context(flag=True) 單一時 或 ctx = dict(context or {}) ctx['flag']=False self.with_context(ctx)
保證context的字典類型 context = dict(context or {})
復制context c = context.copy() 主要改變部分值，帶到其它函數中
自己構造context context = {'flag':Fasle,'lang':'zh_cn'}
常規用法
帶入函數中
if part.lang:
self = self.with_context(lang=part.lang)
product = self.env['product.product'].browse(product)
------
return self.with_context(ctx).write({'invoice_line': []})
記住,用了 with_context
視圖中引入
context model="ir.actions.act_window"時 {"search_default_my_export_list":1}
代表 搜索時 my_expert_list 值為1 對於 search_default_是系統的前置標識
設置值：獲取表單中的字段：【字段1、字段2】
self.with_context({'字段1': 'aaaaaa','字段2': 'bbbaaa'})
獲取值：
self._context.get('字段1')
案例00001:
@api.multi
def _compute_price_rule(self, products_qty_partner, date=False, uom_id=False):
""" Low-level method - Mono pricelist, multi products
Returns: dict{product_id: (price, suitable_rule) for the given pricelist}
If date in context: Date of the pricelist (%Y-%m-%d)
:param products_qty_partner: list of typles products, quantity, partner
:param datetime date: validity date
:param ID uom_id: intermediate unit of measure
"""
self.ensure_one()
if not date:
date = self._context.get('date') or fields.Date.context_today(self)
if not uom_id and self._context.get('uom'):
uom_id = self._context['uom']
if uom_id:
# rebrowse with uom if given
products = [item[0].with_context(uom=uom_id) for item in products_qty_partner]
products_qty_partner = [(products[index], data_struct[1], data_struct[2]) for index, data_struct in enumerate(products_qty_partner)]
else:
products = [item[0] for item in products_qty_partner]
if not products:
return {}
案例00002