小编Loc*_*gar的帖子

我开始了一个新的博客项目来尝试 Laravel。我按照https://laracasts.com/series/laravel-from-scratch-2017/episodes/1?autoplay=true 中的教程进行操作。我更改了 .env 文件

DB_DATABASE=homestead 
DB_USERNAME=homestead 
DB_PASSWORD=secret

到

DB_DATABASE=blog
DB_USERNAME=root
DB_PASSWORD=

然后输入

php artisan migrate

并得到一个错误

   Illuminate\Database\QueryException  : could not find driver (SQL: select * from information_schema.tables where table_schema = blog and table_name = migrations)

  at /home/morilon/php_proj/blog/vendor/laravel/framework/src/Illuminate/Database/Connection.php:664
    660|         // If an exception occurs when attempting to run a query, we'll format the error
    661|         // message to include the bindings with SQL, which will make this exception a
    662|         // lot more helpful to the developer instead …

我更改了模型并进行了迁移。然后我又更改了一次模型，当尝试 python manage.py migrate 时，我收到错误：

Operations to perform:
  Apply all migrations: admin, auth, contenttypes, sessions, shop
Running migrations:
  Applying shop.0004_auto_20180128_1331...Traceback (most recent call last):
  File "/home/morilon/dj/intshop/venv/lib/python3.6/site-packages/django/db/backends/utils.py", line 83, in _execute
    return self.cursor.execute(sql)
  File "/home/morilon/dj/intshop/venv/lib/python3.6/site-packages/django/db/backends/sqlite3/base.py", line 301, in execute
    return Database.Cursor.execute(self, query)
sqlite3.OperationalError: table "shop_brand" already exists

所以我的问题是 - 如何删除表“shop_brand”？？？我已经尝试过flush，sqlflush但这只从表中删除数据，而不是实际表“shop_brand”。

我使用 django 2.0.1 和 python 3.6

我有我必须用 Symfony Form 重做的表格，但我坚持在这个地方：

<div class="currency-label">
    <input checked id="cur1" name="currency" type="radio">
    <label for="cur1">EURO</label>
</div>
<div class="currency-label active">
    <input id="cur2" name="currency" type="radio">
    <label for="cur2">USD</label>
</div>

这是它的外观：

如何使用 Symfony Forms 制作单选按钮？在我的表单类中，我添加了：

->add('vacancyCurrency', RadioType::class, ['required' => false])

和我的模板

{{ form_widget(form.vacancyCurrency) }}

我的表格变短了，显然没有 css ： 如果我添加 css 类来形成它看起来不同：

{{ form_widget(form.vacancyCurrency, {'attr':
      {'class': 'currency-label'}
}) }}