django-admin 自定义命令中的两个参数 [英] Two arguments in django-admin custom command

问题描述

我有一个 工作 django-admin 自定义命令，我用它来用新信息填充我的数据库.同样，一切正常.

I have a working django-admin custom command that I use to populate my database with new information. Again, everything works.

但是，我现在稍微改变了我的模型和函数，以接受两个参数作为元组 - 名字 和 姓氏，而不仅仅是姓名".

However, I have now changed my models and function slightly to accept two arguments as a tuple - first name and last name, instead of just "name".

下面的以前的代码 - 工作.使用manage.py xyz name1 name2 name3... 等(不同参数之间的空格)运行

Previous code below - working. Run using "manage.py xyz name1 name2 name3... etc. (space between the different args)

from django.core.management.base import BaseCommand, CommandError
from detail.models import ABC
from detail.parser import DEF

class Command(BaseCommand):
    args = '<name...>'
    help = 'Populates the ABC class database'

    def handle(self, *args, **options):
        for symbol in args:

            try:
                info = DEF(name)

是否可以从 django-admin 自定义命令传递两个参数，其中第二个参数是可选的 --> 即 (first, last=None)?

下面是我想使用的伪代码......manage.py xyz (first1, last1) (first2, last2) <-- 或者这个的一些变体

Pseudocode below of what I'd like to run using... "manage.py xyz (first1, last1) (first2, last2) <-- or some variation of this

我已经更改了函数 DEF 以适当地接受它作为独立函数.我只是不确定现在如何让 django-admin 命令工作.

I've already changed the function DEF to accept this appropriately as a standalone function. I'm just not sure how I can get the django-admin command working now.

推荐答案

这完全有可能，尽管 django.core.management 没有提供一个特定的工具来做到这一点.您可以解析通过 args 关键字参数传递的参数.为此，您必须想出一个语法(在命令的 help 属性中定义语法可能是个好主意).

It's entirely possible, although django.core.management does not provide a specific tool to do so. You can parse the arguments passed via the args keyword argument. You'll have to come up with a syntax for doing so (defining the syntax in the help attribute of the command would probably be a good idea).

假设语法是firstname.lastname，或者在省略姓氏的情况下只是firstname，你可以这样做:

Assuming the syntax is firstname.lastname, or just firstname in the case that the last name is omitted, you can do something like:

def handle(self, *args, **options):
    for arg in args:
        try:
            first_name, last_name = arg.split('.')
        except ValueError:
            first_name, last_name = arg, None

        info = DEF(first_name, last_name)

命令的用户可以像这样传递参数:

And users of the command can pass in arguments like so:

$ python manage.py yourcommand -v=3 john.doe bill patrick.bateman

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