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Develop's questions

Martin Hope
Develop
Asked: 2020-07-14 09:14:17 +0800 CST
  • 0

我在 nginx 和 gunicorn 上有一个工作的 Django 站点，转储数据库的正确方法是什么？我是否需要禁用nginx，我只是尝试转储错误，无法连接到服务器：

pg_dump: [archiver (db)] connection to database "mydb" failed: could not connect to server: Connection refused
    Is the server running on host "0.0.0.0" and accepting
    TCP/IP connections on port 5432?

而不是 0.0.0.0 我的 ip。怎么做才对？提前致谢！

sql
Martin Hope
Develop
Asked: 2020-07-09 23:54:53 +0800 CST
  • 1

我使用 ajax 获取数据并将其插入到 div 中，但单击这些块不再有效。如何解决这个问题？

 $('body').find('select').css({ 'display': 'none' });
        $('body').find('label').css({ 'display': 'none' });
        $(".add_to_cart").submit(function (e, addr) {
            e.preventDefault();
            var quantity = $(this).find('select option:selected').val();
            console.log(quantity);
            $.ajax({
                type: "POST",
                url: String($(this).data("action")),
                data: { csrfmiddlewaretoken: csrftoken, quantity: quantity },
                success: function (data) {
                    console.log(data);
                    $('.main-offer_list').html(data);
                    
                }
            });
        });
        $( ".delete-btn" ).on( "click", function(e){ 
            e.preventDefault();
            $.ajax({
                type: "POST",
                url: String($(this).data("delete")),
                data: { csrfmiddlewaretoken: csrftoken },
                success: function (data) {
                    $('.main-offer_list').html(data);
                }
            });
      });
javascript
Martin Hope
Develop
Asked: 2020-07-05 22:39:05 +0800 CST
  • 0

设置.py

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'redpandasushi.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [
            os.path.join(BASE_DIR, 'templates'),
        ],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'redpandasushi.wsgi.application'


# Database
# https://docs.djangoproject.com/en/3.0/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}


# Password validation
# https://docs.djangoproject.com/en/3.0/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/3.0/topics/i18n/

LANGUAGE_CODE = 'ru-Ru'

TIME_ZONE = 'Europe/Kiev'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.0/howto/static-files/

STATIC_URL = '/static/'
STATIC_ROOT = os.path.join(BASE_DIR, 'static')

urls.py 主要

from django.contrib import admin
from django.urls import path, include

urlpatterns = [
    path('admin/', admin.site.urls),
    path('shop/', include('shop.urls')),
]

urls.py 商店

from django.urls import path, include
from . import views

urlpatterns=[
    path('',views.index, name="index")
]

视图.py

from django.shortcuts import render, HttpResponse

# Create your views here.

def index(request):
    return render(request, 'polls/index.html')

index.html 文件位于 shop/templates/polls/index.html 文件夹中，出现 TemplateDoesNotExist at /shop/ 错误。告诉我如何解决？

python
Martin Hope
Develop
Asked: 2020-06-09 02:39:42 +0800 CST
  • 1

我有几个按钮，单击时应该会弹出一个模式窗口，但是当您单击具有给定 id 的第一个按钮时，一切正常，但第二个没有。我究竟做错了什么？

$( document ).ready(function() {
        $("#modalBtn").click(function() {
            $("#myModal").css({'display':'block','z-index':'10000000000000'});
         });
         $('.close').click(function(){
            $("#myModal").css({'display':'none','z-index':'10000000000000'});
         });

html代码：

<div class="more"><a id="modalBtn"><span class="align-elem">Уточнить стоимость</span></a></div>
<a id="modalBtn"><span class="align-elem">Рассчитать стоимость</span></a>
jquery
Martin Hope
Develop
Asked: 2020-05-22 02:56:45 +0800 CST
  • 1

我正在尝试为输入设置一个值，但该值没有被写入，尽管消息变量中有文本，我该如何解决这个问题？

$( document ).ready(function() {
    var message = "";
    $( ".class" ).click(function() {
        $('.class1.class2.class3').each(function(){
            message+=$(this).html()+';';
        });

    });
    $("input[name='all_prod']").val('1'+String(message)+'1');
});
jquery
Martin Hope
Develop
Asked: 2020-05-21 20:35:50 +0800 CST
  • 0

如何获取当前windows 10系统语言的代码，试过这个

from winreg import *

aReg = ConnectRegistry(None,HKEY_LOCAL_MACHINE)
aKey = OpenKey(aReg, r"SYSTEM\CurrentControlSet\Control\Nls\Language")
for i in range(1024):
    try:
        keyname = EnumKey(aKey, i)
        asubkey = OpenKey(aKey, keyname)
        val = QueryValueEx(asubkey, "DisplayName")
        print(val)
    except WindowsError:
        break

一些错误，虽然如果你沿着 SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall 路径搜索，它会在注册表中显示一个值。我尝试输入 InstallLanguage 而不是 DisplayName，但没有帮助。

python
Martin Hope
Develop
Asked: 2020-02-21 21:15:00 +0800 CST
  • 1

如何在自定义页面上将产品添加到购物车？简码不起作用，我的代码也不起作用？我知道这需要通过 Ajax 请求来完成，但我不太明白如何，请告诉我

        while ( $loop->have_posts() ): $loop->the_post(); ?>
        <div class="product-main">
            <div class="product-img"> <a href="<?php echo get_permalink(); ?>" class="avatar"><img class="responsive-img" src="<?php
            $thumb_id = get_post_thumbnail_id();
            $thumb_url = wp_get_attachment_image_src($thumb_id,'thumbnail-size', true);
            echo $thumb_url[0];
            ?>" alt=""></a>
            <div class="product-title"><a href="<?php echo get_permalink(); ?>"><?php the_title(); ?></a></div>
            <div class="product-size">Размер: <?php echo $product->get_attribute('size'); ?> см.</div>
            <div class="product-price__box">
                <div class="product-price">Цена: <?php echo $product->get_price_html(); ?> грн.</div>
                <div class="info-cart"><a href="<?php echo esc_html( $product->single_add_to_cart_text() ); ?>"><img src="/wp-content/themes/dropship/assets/img/cart.png"></a></div>
            </div>
            <div class="product-button">
                <button class="fast-buy">Быстрая покупка</button>
            </div>
            </div>
        </div>
        <?php endwhile; ?>

我稍微修改了我的代码，现在货物被添加了但是是几件，如何解决这个问题？

<?php
 global $post, $woocommerce;
?>

    <div class="products-main">
        <?php  $loop = new WP_Query( array(
        'post_type' => 'product',  // указываем, что выводить нужно именно товары
        'posts_per_page' => 12, // количество товаров для отображения
        'orderby' => 'date', // тип сортировки (в данном случае по дате)
        'product_cat' => $sort,
        )); 



        while ( $loop->have_posts() ): $loop->the_post(); ?>
        <div class="product-main">
            <div class="product-img"> <a href="<?php echo get_permalink(); ?>" class="avatar"><img class="responsive-img" src="<?php
            $thumb_id = get_post_thumbnail_id();
            $thumb_url = wp_get_attachment_image_src($thumb_id,'thumbnail-size', true);
            echo $thumb_url[0];
            ?>" alt=""></a>
            <div class="product-title"><a href="<?php echo get_permalink(); ?>"><?php the_title(); ?></a></div>
            <div class="product-size">Размер: <?php echo $product->get_attribute('size'); ?> см.</div>
            <div class="product-price__box">
                <div class="product-price">Цена: <?php echo $product->get_price_html(); ?> грн.</div>
                <div class="info-cart"><a href="<?php $woocommerce->cart->add_to_cart( $thumb_id-1,1 ); ?>"><img src="/wp-content/themes/dropship/assets/img/cart.png"></a></div>
            </div>
            <div class="product-button">
                <button class="fast-buy">Быстрая покупка</button>
            </div>
            </div>
        </div>
        <?php endwhile; ?>
wordpress