小编run*_*aul的帖子

我在本地有两个提交：

commit adae40c5e2b69a41447b08cc3dcb77003611fbbe
Author: Me
Date:   Thu Mar 21 14:17:35 2019 +0000

    1.0.0

commit ceaa65ea06f48dc24554a6f798aae2d668f3a43d
Author: Me
Date:   Fri Feb 1 10:04:36 2019 +0000

    first commit

我该如何压榨这些消息，以使该消息只有一次提交1.0.0？

我尝试了以下方法，但都没有为我工作：

git rebase -i HEAD~2
git rebase -i master

我的报纸应用中有这个 Django 模型：

class Article(models.Model):
    title = models.CharField(max_length=255)
    body = models.TextField()
    date = models.DateTimeField(auto_now_add=True)
    author = models.ForeignKey(
        get_user_model(),
        on_delete=models.CASCADE,
    )

    def __str__(self):
        return self.title

    def get_absolute_url(self):
        return reverse('article_detail', args=[str(self.id)])

它目前显示所有文章，但我想将显示内容限制为 3 篇最近的文章。这是怎么做的？

这是我的观点：

class ArticleListView(LoginRequiredMixin, ListView):
    model = Article
    template_name = 'article_list.html'
    login_url = 'login'

这是 html 模板：

{% extends 'base.html' %}

{% block title %}Articles{% endblock title %}

{% block content %}
  {% for article in object_list %}
    <div class="card">
      <div class="card-header">
        <span class="font-weight-bold">{{ article.title }}</span> &middot;
        <span class="text-muted">by …

我有这个模型：

class News(models.Model):
    title = models.CharField(max_length=255)
    body = models.TextField()
    date = models.DateTimeField(auto_now_add=True)
    author = models.ForeignKey(
        get_user_model(),
        on_delete=models.CASCADE,
    )
    thumb = models.ImageField(blank=True)

    def __str__(self):
        return self.title

    def get_absolute_url(self):
        return reverse('news_detail', args=[str(self.id)])

如果我添加博客文章并包含图片，一切都很好。如果我不包含图像并尝试在浏览器中查看帖子，则会出现此错误：

raise ValueError("The '%s' attribute has no file associated with it." % self.field.name)
ValueError: The 'thumb' attribute has no file associated with it.
[01/Apr/2019 08:11:48] "GET /news/ HTTP/1.1" 500 178129

blank=True如果我不包含图像，我认为可以防止任何错误。我也尝试thumb = models.ImageField(blank=True, null=True)基于此问题但没有任何区别。

我怎样才能选择在我的博客文章中上传图片或不上传图片而不会出错？

附加信息

news_detail.html

{% extends 'base.html' %}

{% block content %} …

我有这个 Python 程序：

#! python3
# random_quiz_generator.py - Creates quizzes with questions and answers in random order, along with the answer key.

import random

# The quiz data. Keys are states and values are their capitals
capitals = {'Alabama': 'Montgomery',
            .......
            'Wyoming': 'Cheyenne'
            }

# Generate 35 quiz files
for quiz_num in range(35):
    # create the quiz and answer key files
    quiz_file = open(f'capitalsquiz{quiz_num + 1}.txt', 'w')
    answer_key_file = open(f'capitalsquiz_answers{quiz_num +1}.txt', 'w')

    # write out the header for the quiz …

我的应用程序控制台日志显示了以下很多内容：

%3|1602097315.970|FAIL|rdkafka#consumer-2| [thrd:kfkqaapq0002d.ch.me.com:9092/bootstrap]: kfkqaapq0002d.ch.me.com:9092/bootstrap: Failed to resolve 'kfkqaapq0002d.ch.me.com:9092': No such host is known.  (after 42ms in state CONNECT)
%3|1602097315.970|FAIL|rdkafka#consumer-3| [thrd:kfkqaapq0002d.ch.me.com:9092/bootstrap]: kfkqaapq0002d.ch.me.com:9092/bootstrap: Failed to resolve 'kfkqaapq0002d.ch.me.com:9092': No such host is known.  (after 41ms in state CONNECT)
%3|1602097315.972|FAIL|rdkafka#producer-1| [thrd:kfkqaapq0003d.ch.me.com:9092/bootstrap]: kfkqaapq0003d.ch.me.com:9092/bootstrap: Failed to resolve 'kfkqaapq0003d.ch.me.com:9092': No such host is known.  (after 48ms in state CONNECT)
%3|1602097315.973|ERROR|rdkafka#producer-1| [thrd:app]: rdkafka#producer-1: kfkqaapq0003d.ch.me.com:9092/bootstrap: Failed to resolve 'kfkqaapq0003d.ch.me.com:9092': No such host is known.  (after 48ms in state CONNECT)
%3|1602097316.459|FAIL|rdkafka#producer-1| [thrd:kfkqaapq0001d.ch.me.com:9092/bootstrap]: kfkqaapq0001d.ch.me.com:9092/bootstrap: Failed to resolve 'kfkqaapq0001d.ch.me.com:9092': No such host …

我有这个render功能：

render() {
    const {classes} = this.props
    return (
      <Paper className={classes.root} elevation={4}>
        <Typography type="title" className={classes.title}>
          All Users
        </Typography>
        <List dense>
         {this.state.users.map((item, i) => {
          const photoUrl = item._id
              ? `/api/users/photo/${item._id}?${new Date().getTime()}`
              : '/api/users/defaultphoto'
          return <Link to={"/user/" + item._id} key={i}>
                    <ListItem button>
                      <ListItemAvatar>
                        <Avatar src={photoUrl} className={classes.bigAvatar}/>
                      </ListItemAvatar>
                      <ListItemText primary={item.name}/>
                      <ListItemSecondaryAction>
                      <IconButton>
                          <ArrowForward/>
                      </IconButton>
                      </ListItemSecondaryAction>
                    </ListItem>
                 </Link>
               })
             }
        </List>
      </Paper>
    )
  }
}

当我最初加载页面时，每个用户的左侧都会出现下面的蓝点：

如果我然后单击指向另一个页面的链接，然后单击浏览器后退箭头返回到用户页面，则用户列表将显示为没有蓝点：

如果蓝点永远不会出现，我会更喜欢。我该怎么做呢？

我有这个命令来列出Kubernetes没有运行的pod：

sudo kubectl get pods -n my-name-space | grep -v Running

是否有一个命令可以返回未运行的 Pod 计数？

我的Python程序中有一个字符串。我想在第三次之后剥离所有东西.。我已经尝试过strip()，split()但是没有得到预期的输出。这该怎么做？

set这行代码是什么意思？

List<SimpleGrantedAuthority> authorities = set = new ArrayList<>();

我试图找出这意味着什么，但到目前为止还没有运气。