如何解决"TypeError:float()参数必须为字符串或数字". [英] How to resolve "TypeError: float() argument must be a string or a number"
问题描述
我试图在odoo 9中安装模块product_print_zpl_barcode.
此模块用于添加有关产品变型的向导，以在ZPL打印机上生成并打印产品条形码.
我收到错误消息:
I was trying to install module product_print_zpl_barcode in odoo 9.
This module is used to add a wizard on product variant to generate and print a product barcode on a ZPL printer.
I got the error:
TypeError:float()参数必须为字符串或数字
TypeError: float() argument must be a string or a number
当我按下打印条形码"按钮时.
when I pressed the button "Print barcode".
这是源代码和错误:
product_print_zpl_barcode.py
product_print_zpl_barcode.py
# -*- coding: utf-8 -*-
from openerp import models, fields, api, _
from openerp.exceptions import UserError
from openerp.tools import float_compare, float_is_zero
import openerp.addons.decimal_precision as dp
import base64
import re
class ProductPrintZplBarcode(models.Model):
_name = 'product.print.zpl.barcode'
_description = 'Generate and print product barcodes in ZPL'
@api.depends('pricelist_id', 'quantity', 'product_id')
def _compute_price(self):
# for regular barcodes
for wiz in self:
if wiz.pricelist_id and wiz.product_id:
price_uom = wiz.pricelist_id.price_get(wiz.product_id.id, 1)
wiz.price_uom = price_uom
wiz.price = price_uom * wiz.quantity
return wiz.price
跟踪
Traceback (most recent call last):
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\http.py", line 650, in _handle_exception
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\http.py", line 687, in dispatch
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\http.py", line 323, in _call_function
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\service\model.py", line 118, in wrapper
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\http.py", line 316, in checked_call
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\http.py", line 966, in __call__
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\http.py", line 516, in response_wrap
File "D:\Projet_Odoo\Odoo 9.20180426\server\openerp\addons\web\controllers\main.py", line 896, in call_kw
File "D:\Projet_Odoo\Odoo 9.20180426\server\openerp\addons\web\controllers\main.py", line 888, in _call_kw
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\api.py", line 250, in wrapper
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\api.py", line 381, in old_api
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\models.py", line 6067, in onchange
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\models.py", line 5770, in __getitem__
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\fields.py", line 834, in __get__
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\fields.py", line 949, in determine_draft_value
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\fields.py", line 895, in compute_value
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\fields.py", line 885, in _compute_value
File "D:\Projet_Odoo\Odoo 9.020180426\server\openerp\addons\product_print_zpl_barcode\models\product_print_zpl_barcode.py", line 100, in _compute_price
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\fields.py", line 847, in __set__
File "D:\Projet_Odoo\Odoo 9.0-20180426\server\.\openerp\fields.py", line 1177, in convert_to_cache
TypeError: float() argument must be a string or a number
推荐答案
不返回任何值.
如Odoo网站You should assign the computed value to the field所述:
计算字段
Computed fields
可以使用compute参数来计算字段(而不是直接从数据库中读取).它必须将计算出的值分配给该字段.如果使用其他字段的值，则应使用depends()指定这些字段
Fields can be computed (instead of read straight from the database) using the compute parameter. It must assign the computed value to the field. If it uses the values of other fields, it should specify those fields using depends()
评估price_uom = wiz.pricelist_id.price_get(wiz.product_id.id, 1)后:
price_uom将是字典({pricelist_id: price})，因此在尝试执行任何算术运算之前，您需要获取price_uom.
price_uom will be a dict ({pricelist_id: price}) so you need to get price_uom before trying to perform any arithmetic operation.
@api.depends('pricelist_id', 'quantity', 'product_id')
def _compute_price(self):
# for regular barcodes
for wiz in self:
if wiz.pricelist_id and wiz.product_id:
# You need to get price from the dict using pricelist_id
price_uom = wiz.pricelist_id.price_get(wiz.product_id.id, 1)[wiz.pricelist_id.id]
wiz.price_uom = price_uom
wiz.price = price_uom * wiz.quantity
return wiz.price
如果您看下面的代码，您将看到如何计算price_get返回值(我刚刚复制了最小的必要代码):
You can see how the price_get return value is computed if you take a look at the following code (I just copied the minimum necessary code):
def price_get(self, cr, uid, ids, prod_id, qty, partner=None, context=None):
return dict((key, price[0]) for key, price in self.price_rule_get(cr, uid, ids, prod_id, qty, partner=partner, context=context).items())
def price_rule_get(self, cr, uid, ids, prod_id, qty, partner=None, context=None):
product = self.pool.get('product.product').browse(cr, uid, prod_id, context=context)
res_multi = self.price_rule_get_multi(cr, uid, ids, products_by_qty_by_partner=[(product, qty, partner)], context=context)
res = res_multi[prod_id]
return res
def price_rule_get_multi(self, cr, uid, ids, products_by_qty_by_partner, context=None):
"""multi products 'price_get'.
@param ids:
@param products_by_qty:
@param partner:
@param context: {
'date': Date of the pricelist (%Y-%m-%d),}
@return: a dict of dict with product_id as key and a dict 'price by pricelist' as value
"""
if not ids:
ids = self.pool.get('product.pricelist').search(cr, uid, [], context=context)
results = {}
for pricelist in self.browse(cr, uid, ids, context=context):
subres = self._price_rule_get_multi(cr, uid, pricelist, products_by_qty_by_partner, context=context)
for product_id, price in subres.items():
results.setdefault(product_id, {})
results[product_id][pricelist.id] = price
return results
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