Domain
Domain 代表记录集的条件表达式。Domain 是定义模型子集的规则集合。每个规则是一个包含名称、操作和值的三元组
规则如下:
(1) Start with the outermost operator and move it to the start of the expression.
"(A operator B)" becomes "operator (A B)"
(2) Repeat step 1 for each sub expression with an operator to move.
"A operator (B operator C)" becomes "operator A (B operator C)" then "operator A (operator B C)"
(3) Remove all brackets.
"A operator (B operator C)" becomes "operator A operator B C"
So for my example:
( A or B ) AND ( C or D or E )
First simplification:
AND ( A or B ) ( C or D or E )
left side
AND ( or A B ) ( C or D or E )
right side outer
AND ( or A B ) ( or C ( D or E ) )
right side inner
AND ( or A B ) ( or C ( or D E ) )
remove brackets
AND or A B or C or D E
In OpenERP domain syntax this would be:
[ '&', '|', (A), (B), '|', (C), '|', (D), (E) ]
例如,下面是Product模型子集的Domain表达式,“单价大于1000且类型为服务”的记录集:
[('product_type', '=', 'service'), ('unit_price', '>', 1000)]
多个规则组合时,默认条件组合方式是AND。逻辑运算符&(AND),|(OR),!(NOT)可以用来显示的组合多个规则。它们在前缀位置使用(操作符在参数之前,而不是中间)。例如下面的Domain表达式,含义是"类型为服务或者单价不介于1000和2000之间"
计算字段和默认值
说明
字段也可以通过计算获得。在这种情况下,字段的值不是直接检索自数据库,而是通过调用模型的方法来实时计算获得。要创建计算字段,需要设置它的compute属性为方法名。这个计算方法通过计算self的每条记录来设置字段的值。
self是一个记录的有序集合,它支持标准的Python集合操作,如len(self)和iter(self),加上额外的集合操作recs1 + recs2。迭代过程逐个提供self记录,其中每个记录本身是大小为1的集合。你可以通过点记号来访问/分配单个记录上的字段record.name
依赖
计算字段的值通常取决于所在记录行的其它字段的值。ORM层期望开发人员使用depends()装饰器来指定计算方法的依赖性。当某些依赖关系被修改后,ORM层通过给定的依赖关系来触发字段的重新计算。
from odoo import models, fields, api
class ComputedModel(models.Model):
_name = 'test.computed'
name = fields.Char(compute='_compute_name')
value = fields.Integer()
@api.depends('value')
def _compute_name(self):
for record in self:
record.name = "Record with value %s" % record.value
默认值
任何字段都可以给出默认值。在字段定义中,添加选项default=x,x可以是Python字面值(bool,int,float,string),也可以是一个有返回值的方法。
name = fields.Char(default="Unknown")
user_id = fields.Many2one('res.users', default=lambda self: self.env.user)
self.env 对象给出了访问请求参数和其他有用的信息:
self.env.cr 或者 self._cr 是数据库游标对象,通常用于查询数据库
self.env.uid 或者 self._uid 是当前用户的数据库ID
self.env.user 是当前用户记录
self.env.ref(xml_id) 返回XML ID对应的记录
self.env[model_name] 返回给定模型的实例
onchange 机制
"onchange"机制为客户端界面提供了一种方法,当用户在字段中填写了值,不需要向数据库保存任何内容,就可以更新表单。例如,假设模型有三个字段amount,unit_price和price,当数量和单价改变时,自动重新计算价格,并在表单界面更新。要实现这个需求,需要定义一个方法,并使用onchange()装饰器,onchange()的参数指定了在那个字段改变时,触发方法。其中self代表表单视图中的记录,你所做的任何更改,self都将立刻反应在表单上。
<field name="amount"/>
<field name="unit_price"/>
<field name="price" readonly="1"/>
# onchange handler
@api.onchange('amount', 'unit_price')
def _onchange_price(self):
# set auto-changing field
self.price = self.amount * self.unit_price
# Can optionally return a warning and domains
return {
'warning': {
'title': "Something bad happened",
'message': "It was very bad indeed",
}
}
模型约束
odoo提供两种方式实现自动验证,python constraints和sql constraints
Python约束通过方法装饰器constraints()来定义,并在记录集上调用这个方法。装饰器参数指定了约束涉及的字段,当涉及的字段中任一发生改变时触发方法执行。如果不满足约束条件,该方法将引发异常:
from odoo.exceptions import ValidationError
@api.constrains('age')
def _check_something(self):
for record in self:
if record.age > 20:
raise ValidationError("Your record is too old: %s" % record.age)
# all records passed the test, don't return anything
sql限制值唯一
_sql_constraints = [('unique_name', 'unique(name)', 'the name must be unique')]
@api.constrains('name')
def _check_xxxx(self):
pass
定义model.Model的时候必须在权限表中定义权限,才会出来添加按钮
<notebook>
<page string="收入">
<group>
<group>
<field name="assess_operating_income_month" string="考核营业收入本月数"/>
<field name="operating_income_month" string="报表营业收入本月数"/>
<field name="adjust_item_month" string="调整项目合计本月数"/>
</group>
<group>
<field name="assess_operating_income_year" string="考核营业收入本年累计"/>
<field name="operating_income_year" string="报表营业收入本年累计"/>
<field name="adjust_item_year" string="调整项目合计本年累计"/>
</group>
</group>
<field name="operate_id" widget="one2many_list" >
# name是主表中定义one2many的字段值
<tree editable="bottom">
<field name="partner_id" string="公司"
options='{"no_open": True, "no_quick_create":True, "no_create_edit": True}'/>
<field name="month_amount" string="本月数"/>
<field name="year_amount" string="本年累计数"/>
<field name="account_id" string="科目"
options='{"no_open": True, "no_quick_create":True, "no_create_edit": True}'/>
<field name="note" string="备注"/>
</tree>
</field>
</page>
</notebook>
自动生成跟时间相关的编号
1.建立data文件夹,新建xml文件
<?xml version="1.0" encoding="utf-8"?>
<odoo>
<data noupdate="1">
<record id="monomer_statements.monomer_statements" model="ir.sequence">
<field name="name">monomer_statements</field>
<field name="code">monomer.statements.create.code</field>
<field name="prefix">MS%(year)s%(month)s</field>
<field name="suffix"/>
<field name="padding">5</field>
</record>
</data>
</odoo>
field name=code的值要跟py文件中next_by_code()中的值相同
2.py文件中
name = fields.Char(string='name', required=True, default=lambda self: self._compute_name())
def _compute_name(self):
return self.env['ir.sequence'].sudo().next_by_code('monomer.statements.create.code') + '/' + \
str(self.env.user.company_id.id)
@api.onchange 和 @api.depends
@api.onchange相同模型中的字段
@api.depends不同模型中的字段
@api.one和@api.multi
@api.one
- self是单例实例
- 对于recordset中的每条记录,都调用方法,并将结果列成一个列表
- 没有返回
@api.multi
- self是一个记录集
- 有返回
最好使用@api.multi 和 self.ensure_one(),而不是@api.one
查看报错日志信息
try:
pass
except Exception as e:
import traceback
_logger.info({
'error': traceback.format_exc()
})
('child_ids', '=', False)消除末级科目
get_last_period取上一级期间,事先写好的方法,直接用就可以了
重写新建和更新方法
区分vals的格式
增加字典中同一个键的值,说明这个键,否则值会被覆盖
vals[key].append(item)
@api.model
def create(self, vals):
vals = self._get_create_amount(vals, monomer_model='monomer.statements.income.line', monomer_field='operate_id')
vals = self._get_create_amount(vals, monomer_model='monomer.statements.cost.line', monomer_field='cost_id')
vals = self._get_create_amount(vals, monomer_model='monomer.statements.profit.line', monomer_field='profit_id')
res = super(MonomerStatements, self).create(vals)
return res
@api.multi
def write(self, vals):
vals = self._get_last_amount(vals, monomer_model='monomer.statements.income.line', monomer_field='operate_id')
vals = self._get_last_amount(vals, monomer_model='monomer.statements.cost.line', monomer_field='cost_id')
vals = self._get_last_amount(vals, monomer_model='monomer.statements.profit.line', monomer_field='profit_id')
res = super(MonomerStatements, self).write(vals)
return res
def _get_create_amount(self, vals, monomer_model, monomer_field):
if self.period_id or 'period_id' in vals.keys():
period_id = vals.get('period_id', False)
period_object = self.env['account.period'].browse(period_id)
last_period = self.env['account.period'].get_last_period(period_object)
if last_period:
last_period_partner = self.env[monomer_model].search([('period_id', '=', last_period.id)])
last_ids = last_period_partner.mapped('partner_id').ids
set_last = set(last_ids)
partner_ids = vals.get(monomer_field, False)
current_ids = []
last_result = []
for i in range(len(partner_ids)) if partner_ids else []:
current_ids.append(partner_ids[i][2].get('partner_id', False))
set_current = set(current_ids)
sub_result = set_last - set_current
result = list(sub_result)
update_partner = self.env[monomer_model].search([('period_id', '=', last_period.id),
('partner_id', 'in', result)])
result_list = []
for item in update_partner:
update_set = {
'partner_id': item.partner_id.id,
'year_amount': item.year_amount,
'account_id': item.account_id.id,
'note': item.note
}
result_list = [0, False, update_set]
last_result.append(result_list)
for item in last_result:
vals[monomer_field].append(item)
return vals
else:
return vals
def _get_last_amount(self, vals, monomer_model, monomer_field):
if self.period_id or 'period_id' in vals.keys():
period_id = vals.get('period_id', False)
period_object = self.env['account.period'].browse(period_id)
last_period = self.env['account.period'].get_last_period(period_object)
if last_period:
last_period_partner = self.env[monomer_model].search([('period_id', '=', last_period.id)])
last_ids = last_period_partner.mapped('partner_id').ids
partner_ids = vals.get(monomer_field, False)
partner_list = []
last_result = []
for i in range(len(partner_ids)) if partner_ids else []:
partner_list.append(partner_ids[i][1])
current_ids = []
for item in partner_list:
partner = self.env[monomer_model].browse(item)
current_ids.append(partner.mapped('partner_id').id)
set_last = set(last_ids)
set_current = set(current_ids)
sub_result = set_last - set_current
result = list(sub_result)
update_partner = self.env[monomer_model].search([('period_id', '=', last_period.id),
('partner_id', 'in', result)])
for item in update_partner:
update_set = (0, 0, {
'partner_id': item.partner_id.id,
'year_amount': item.year_amount,
'account_id': item.account_id.id,
'note': item.note
})
last_result.append(update_set)
vals.update({
monomer_field: last_result
})
return vals
else:
return vals
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