字典的产品不能重复odoo

Question

我正在拍摄当月销售的所有产品，并将其存储在字典列表中，如下所示：

a = [
    {'product_name':'coca-cola','qty':2},
    {'product_name':'pepsi','qty':2},
    {'product_name':'coca-cola','qty':1},
    {'product_name':'coca-cola','qty':1},
    {'product_name':'coca-cola1','qty':1},
    {'product_name':'pepsi','qty':2}
    ]

现在我正在努力让产品不重复，坦率地说，如果你重复产品，你应该简单地添加离开字典的数量，如下所示：

result =[{'product_name':'coca-cola','qty':4},{'product_id':'pepsi','qty':4},{'product_id':'coca-colca1','qty':1}]

到目前为止，我只尝试了以下操作，但结果不合适：

b = []

for index  in range(0,len(a)-1):
    if  a[index]['product_name'] != a[index + 1 ]['product_name']:
        b.append(a[index])


print b

Answer 1

尝试如下操作；

a = [
    {'product_name':'coca-cola','qty':2},
    {'product_name':'pepsi','qty':2},
    {'product_name':'coca-cola','qty':1},
    {'product_name':'coca-cola','qty':1},
    {'product_name':'coca-cola1','qty':1},
    {'product_name':'pepsi','qty':2}
    ]

b = []

for i in range(len(a)):
    if a[i]['product_name'] not in b : b.append(a[i]['product_name'])

for j in range(len(b)):
    qty = 0
    for k in range(len(a)):
        if a[k]['product_name'] == b[j] : qty += a[k]['qty']
    b[j] = {'product_name':b[j], 'qty':qty}

print(b)

我首先遍历并将唯一的产品名称作为字符串输入到用 b 初始化的列表中。然后我遍历了列表 b 中的每个唯一产品名称，然后总结了列表 a 中与该产品名称关联的数量。最后，我将字符串条目转换为包含现有产品名称和总数量的字典。

输出

b = [
    {'product_name': 'coca-cola', 'qty': 4},
    {'product_name': 'pepsi', 'qty': 4},
    {'product_name': 'coca-cola1', 'qty': 1}
    ]

Answer 2

我的做法是分两步走：首先求和，然后生成你需要格式的输出。



    a = [
        {'product_name':'coca-cola','qty':2},
        {'product_name':'pepsi','qty':2},
        {'product_name':'coca-cola','qty':1},
        {'product_name':'coca-cola','qty':1},
        {'product_name':'coca-cola1','qty':1},
        {'product_name':'pepsi','qty':2}
        ]

    totals = {}
    for sale in a:
        if sale['product_name'] in totals.keys():
            totals[sale['product_name']] += sale['qty']
        else:
            totals[sale['product_name']] = sale['qty']

    b = []
    for product_name, qty in totals.items():
        b.append({'product_name':product_name, 'qty':qty})

字典的产品不能重复odoo

Products of a dictionary can not be repeated odoo

python-3.x

odoo