我正在尝试以下一段代码,这是我在 2016 年的一本书中找到的:
import MySQLdb
import pandas as pd
# database setup omitted for the sake of brevity
nr_customers = 100
colnames = ["movie%i" %i for i in range(1, 33)]
pd.np.random.seed(2015)
generated_customers = pd.np.random.randint(0,2,32 * nr_customers).reshape(nr_customers,32)
data = pd.DataFrame(generated_customers, columns = list(colnames))
data.to_sql('cust',mc,index=True,if_exists='replace',index_label='cust_id')
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它只是给了我以下错误:
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
~/anaconda3/envs/TestEnv/lib/python3.7/site-packages/MySQLdb/cursors.py in execute(self, query, args)
242 try:
--> 243 query = query % args
244 except TypeError as m:
TypeError: not all arguments converted during string formatting
During handling …Run Code Online (Sandbox Code Playgroud) 我正在尝试运行我的一个测试,该测试进行搜索,试图断言搜索结果中包含记录,但与此同时,我收到一个Elasticsearch::Transport::Transport::Errors::BadRequest错误:
SearchTest#test_simple_test_returns_product:
Elasticsearch::Transport::Transport::Errors::BadRequest: [400]
{
"error":{
"root_cause":[
{
"type":"resource_already_exists_exception",
"reason":"index [app_application_test_products/FTt1YC6eQrCw2XwJuqjmDw] already exists",
"index_uuid":"FTt1YC6eQrCw2XwJuqjmDw",
"index":"app_application_test_products"
}
],
"type":"resource_already_exists_exception",
"reason":"index [app_application_test_products/FTt1YC6eQrCw2XwJuqjmDw] already exists",
"index_uuid":"FTt1YC6eQrCw2XwJuqjmDw",
"index":"app_application_test_products"
},
"status":400
}
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当我在开发中执行搜索时,它按预期工作,但在测试中抛出此类错误,在测试中我添加了导入和索引刷新,仅此而已:
class SearchTest < ActiveSupport::TestCase
setup do
Product.import force: true
Product.__elasticsearch__.refresh_index!
end
test "simple test returns product" do
product = products(:one)
I18n.locale = product.market.lang
search = Search.new(
category: product.category.custom_slug,
page: 1,
market_id: product.market_id,
status: "active",
seed: Date.today.to_time.to_i
)
assert_includes search.results.records, products(:one)
assert_includes search.results.records, products(:two)
assert_not_includes search.results.records, products(:three)
end
end
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任何帮助以及改进代码的提示都将受到赞赏。
我在用着: …
ruby ruby-on-rails minitest elasticsearch elasticsearch-rails
我正在尝试模拟对输入标签的点击,通过点击anchor标签,这样我可以隐藏输入并将图像包裹在锚标签内。
这可以使用 jQuery 触发器函数工作,但我无法仅使用“普通”Javascript:
jQuery 版本:
let fake = $('.fake')
fake.click(function(e) {
e.preventDefault();
$('#user_avatar').trigger('click');
})Run Code Online (Sandbox Code Playgroud)
#user_avatar { display: none; }Run Code Online (Sandbox Code Playgroud)
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="file" name="file_field" id="user_avatar">
<a href="#" class="fake">
<img src="https://fthmb.tqn.com/65lNzIRNfZY4xY02D17b1RcGvso=/960x0/filters:no_upscale()/kitten-looking-at-camera-521981437-57d840213df78c583374be3b.jpg" width="320" height="240">
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使用new Event和的 JavaScript 版本dispatchEvent:
let fake = document.querySelector('.fake');
fake.addEventListener('click', function(e) {
e.preventDefault();
console.log('testing');
let clickEvent = new Event('click');
document.getElementById('user_avatar').dispatchEvent(clickEvent)
})Run Code Online (Sandbox Code Playgroud)
#user_avatar { display: none; }Run Code Online (Sandbox Code Playgroud)
<input type="file" name="file_field" id="user_avatar">
<a href="#" class="fake">
<img src="https://fthmb.tqn.com/65lNzIRNfZY4xY02D17b1RcGvso=/960x0/filters:no_upscale()/kitten-looking-at-camera-521981437-57d840213df78c583374be3b.jpg" width="320" height="240">
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已呈现 console.log,但未分派事件,我做错了什么?
在尝试导入Date模块并在简单的Elm文件中使用它时,我收到以下错误:
-- UNKNOWN IMPORT ---------------------------- app/javascript/CountdownTimer.elm
The CountdownTimer module has a bad import:
import Date
I cannot find that module! Is there a typo in the module name?
The "source-directories" field of your elm.json tells me to only look in the src
directory, but it is not there. Maybe it is in a package that is not installed
yet?
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CountdownTimer是文件和模块的名称,取自这里,似乎工作正常,但不适合我.
我正在使用Elm 0.19.0和Rails 6.0.0beta1,这似乎不是一个约束,因为如果我在任何地方进入Elm REPL,并尝试导入日期,我面临同样的错误:
> import Date
-- UNKNOWN IMPORT ---------------------------------------------------------- elm
The Elm_Repl module has a bad …Run Code Online (Sandbox Code Playgroud) 我有一个表,其中包含一个基于整数的列(状态),我将其用于 Rails 模型中的枚举属性。
在做的那一刻:
Post.select(:id, ..., :status)
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定义为:
enum status: { inactive: 0, active: 1, ... }
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它按预期返回所有内容,但状态列在其字符串值中返回为inactive、active等。但我需要它作为整数。
我怎样才能得到它?
我目前只是使用ActiveRecord::Base.connection.execute并传递原始查询:
ActiveRecord::Base.connection.execute('select id, ..., status from posts')
Run Code Online (Sandbox Code Playgroud) 如果不是Nothing,我试图返回一个JSON数据表示,如果Nothing则返回一个空的JSON对象;
我知道我可以做到:
encode ()
-- "[]"
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但是现在我想要一个空对象 ( "{}")。
我有这个,它可以根据给定的字段生成 JSON:
? data Person = Person { id :: Integer, height :: Float } deriving (Show)
? instance ToJSON Person where toJSON (Person { id = id, height = height }) = object [ "id" .= id, "height" .= height ]
? encode (Person 1 72.8)
-- "{\"height\":72.8,\"id\":1}"
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但最终没有 Person 将用 Nothing 表示,如果我这样做,encode (Nothing)我会收到一个错误:
<interactive>:11:1: error:
• Ambiguous type variable ‘a0’ arising from a use of ‘encode’ …Run Code Online (Sandbox Code Playgroud) 在我的数据库中,一个帖子可以有零 (0) 个或多个类别表示为一个数组。
当我进行查询时,要查看这些类别,传递一些值:
{
"query": {
"bool": {
"should": {
"terms": {
"categories": ["First", "Second", "And so on"]
}
}
}
}
}
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它运作良好,我有我期待的记录。但是当我想包含这些帖子时问题就来了,其中类别是一个空数组 ([])。
我现在正在从旧版本的 ES (1.4.5) 升级到版本 6.3.2,并且这段代码是使用“missing”制作的,它已被弃用。
我试过更改映射添加著名的"null_value": "NULL",然后查询,但没有奏效。还尝试了 should 和 must_not 的组合,如升级“missing”的建议,但没有奏效。
我怎样才能做到这一点?这意味着如果我已经索引:
Post.new(id: 1, title: '1st', categories: [])
Post.new(id: 2, title: '2nd', categories: ['news', 'tv'])
Post.new(id: 3, title: '3rd', categories: ['tv', 'trending'])
Post.new(id: 4, title: '4th', categories: ['movies'])
Post.new(id: 5, title: '5th', categories: ['technology', 'music'])
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结果应返回帖子编号 1, 2 y 3 - 具有“新闻”、“电视”或空数组作为类别的帖子。
ruby-on-rails elasticsearch elasticsearch-rails elasticsearch-ruby
date ×1
elm ×1
haskell ×1
html ×1
ihp ×1
javascript ×1
minitest ×1
mysql-python ×1
pandas ×1
postgresql ×1
python ×1
ruby ×1